Epson RTC-72423 A Manuals

Manuals and User Guides for Epson RTC-72423 A. We have 2 Epson RTC-72423 A manuals available for free PDF download: Applications Manual

Epson RTC-72423 A Applications Manual

Epson RTC-72423 A Applications Manual (29 pages)

Real Time Clock Module  
Brand: Epson | Category: Control Unit | Size: 1.09 MB
Table of contents
Table Of Contents3................................................................................................................................................................
Overview5................................................................................................................................................................
Block Diagram6................................................................................................................................................................
Pin Connections6................................................................................................................................................................
Pin Functions7................................................................................................................................................................
Characteristics8................................................................................................................................................................
Absolute Maximum Ratings8................................................................................................................................................................
Operating Conditions8................................................................................................................................................................
Frequency Characteristics And Current Consumption Characteristics8................................................................................................................................................................
Electrical Characteristics (dc Characteristics)9................................................................................................................................................................
Switching Characteristics (ac Characteristics)10................................................................................................................................................................
When Ale Is Used10................................................................................................................................................................
When Ale Is Fixed At12................................................................................................................................................................
Registers13................................................................................................................................................................
Register Table13................................................................................................................................................................
Notes13................................................................................................................................................................
Functions Of Register Bits (overview)14................................................................................................................................................................
Setting The Fixed-period Pulse Output Mode And Fixed-period Interrupt Mode14................................................................................................................................................................
Resetting The Fixed-period Pulse Output Mode And Fixed-period Interrupt Mode14................................................................................................................................................................
Register Description15................................................................................................................................................................
Timing Registers15................................................................................................................................................................
S 1 To Y 10 Registers15................................................................................................................................................................
W Register15................................................................................................................................................................
Register (pm/am15................................................................................................................................................................
Y 1 And Y 10 Registers15................................................................................................................................................................
Out-of-range Data15................................................................................................................................................................
C D Register (control Register16................................................................................................................................................................
Hold Bit16................................................................................................................................................................
Busy Bit16................................................................................................................................................................
Irq Flag Bit16................................................................................................................................................................
30-second Adj Bit17................................................................................................................................................................
C E Register (control Register17................................................................................................................................................................
Mask Bit17................................................................................................................................................................
Itrpt/stnd Bit18................................................................................................................................................................
T (d 2 ), T 1 (d 3 ) Bits18................................................................................................................................................................
C F Register (control Register19................................................................................................................................................................
Reset Bit19................................................................................................................................................................
Stop Bit19................................................................................................................................................................
24/12 Bit19................................................................................................................................................................
Test Bit19................................................................................................................................................................
Using The Rtc-72421/rtc-7242320................................................................................................................................................................
Power-on Procedure (initialization)20................................................................................................................................................................
Read/write Of S To W Registers22................................................................................................................................................................
Write To 30-second Adj Bit22................................................................................................................................................................
Using The Cs Pin23................................................................................................................................................................
Functions23................................................................................................................................................................
Timing23................................................................................................................................................................
Note23................................................................................................................................................................
Power Supply Circuit Example23................................................................................................................................................................
Examples Of Connection To General-purpose Microprocessor24................................................................................................................................................................
Connection To Multiplexed Bus Type24................................................................................................................................................................
Connection To Z80 Or Compatible Cpu24................................................................................................................................................................
Connection To 68-series Mpu24................................................................................................................................................................
Reference Data25................................................................................................................................................................
Frequency Temperature Characteristics (typical)25................................................................................................................................................................
Frequency Voltage Characteristics (typical)25................................................................................................................................................................
Current Consumption Voltage Characteristics (typical)25................................................................................................................................................................
External Dimensions26................................................................................................................................................................
Rtc-7242126................................................................................................................................................................
Rtc-7242326................................................................................................................................................................
Marking Layout26................................................................................................................................................................
Treatment Of Unused Input Pins26................................................................................................................................................................
Application Notes27................................................................................................................................................................
Notes On Handling27................................................................................................................................................................
Static Electricity27................................................................................................................................................................
Noise27................................................................................................................................................................
Voltage Levels Of Input Pins27................................................................................................................................................................
Notes On Mounting28................................................................................................................................................................
Soldering Temperature Conditions28................................................................................................................................................................
Mounting Equipment28................................................................................................................................................................
Ultrasonic Cleaning28................................................................................................................................................................
Mounting Orientation28................................................................................................................................................................
Leakage Between Pins28................................................................................................................................................................

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Epson RTC-72423 A Applications Manual

Epson RTC-72423 A Applications Manual (25 pages)

Real Time Clock Module  
Brand: Epson | Category: Computer Hardware | Size: 0.21 MB
Table of contents
Table Of Contents3................................................................................................................................................................
Overview4................................................................................................................................................................
Block Diagram4................................................................................................................................................................
Terminal Connections5................................................................................................................................................................
Terminal Functions6................................................................................................................................................................
Characteristics7................................................................................................................................................................
Absolute Maximum Ratings7................................................................................................................................................................
Recommended Operating Conditions7................................................................................................................................................................
Frequency Characteristics And Current Consumption Characteristics7................................................................................................................................................................
Electrical Characteristics ( Dc Characteristics )7................................................................................................................................................................
Switching Characteristics (ac Characteristics)8................................................................................................................................................................
When Ale Is Used8................................................................................................................................................................
When Ale Is Fixed At9................................................................................................................................................................
Registers10................................................................................................................................................................
Register Table10................................................................................................................................................................
Notes10................................................................................................................................................................
Functions Of Register Bits (overview)10................................................................................................................................................................
Setting The Fixed-period Pulse Output Mode And Fixed-period Interrupt Mode11................................................................................................................................................................
Resetting The Fixed-period Pulse Output Mode And Fixed-period Interrupt Mode11................................................................................................................................................................
Register Description12................................................................................................................................................................
Timing Registers12................................................................................................................................................................
Cd Register (control Register D)13................................................................................................................................................................
Ce Register (control Register E)14................................................................................................................................................................
Cf Register (control Register F)16................................................................................................................................................................
Using The Rtc-72421/rtc-7242317................................................................................................................................................................
Power-on Procedure (initialization)17................................................................................................................................................................
Read/write Of S1 To W Registers19................................................................................................................................................................
Write To 30-second Adj Bit19................................................................................................................................................................
Using The Cs Pin20................................................................................................................................................................
Power Supply Circuit Example20................................................................................................................................................................
Examples Of Connection To General-purpose Microprocessor21................................................................................................................................................................
External Dimensions22................................................................................................................................................................
Marking Layout22................................................................................................................................................................
Reference Data23................................................................................................................................................................
Application Notes24................................................................................................................................................................
Notes On Handling24................................................................................................................................................................
Notes On Packaging24................................................................................................................................................................

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