Table of Contents
Advertisement
1.1 Features
• ROM and RAM capacities
Part Number
µ
PD789425, 789435
µ
PD789426, 789436
µ
PD78F9436
µ
PD789445, 789455
µ
PD789446, 789456
µ
PD78F9456
• Crystal/ceramic oscillation or RC oscillation is selectable for the oscillator by a mask option.
• Minimum instruction execution time can be changed from high-speed (0.4
system clock) to ultra-low-speed (122
oscillation)
• Minimum instruction execution time can be changed from high-speed (0.5
system clock) to ultra-low-speed (122
µ
• I/O ports: 40 (
PD789426, 789436 Subseries)
µ
30 (
PD789446, 789456 Subseries)
• Timer: 5 channels
16-bit timer:
1 channel
•
8-bit timer:
2 channels
•
Watch timer:
1 channel
•
Watchdog timer: 1 channel
•
• A/D converter:
8-bit resolution:
6 channels (
10-bit resolution: 6 channels (
• Serial interface: 1 channel
• LCD controller/driver
Segment signals:
5, common signals: 4 (
Segment signals: 15, common signals: 4 (
• Vectored interrupt sources: 15
• Power supply voltage: V
• Operating ambient temperature: T
1.2 Applications
Portable audio, cameras, healthcare equipment, etc.
CHAPTER 1 GENERAL
Item
Program Memory
Mask ROM
8 KB
16 KB
Flash memory
16 KB
Mask ROM
12 KB
16 KB
Flash memory
µ
s: @ 32.768 kHz operation with subsystem clock) (crystal/ceramic
µ
s: @ 32.768 kHz operation with subsystem clock) (RC oscillation)
µ
PD789426, 789446 Subseries)
µ
PD789436, 789456 Subseries)
µ
PD789426, 789436 Subseries)
µ
PD789446, 789456 Subseries)
= 1.8 to 5.5 V
DD
= –40 to +85°C
A
User's Manual U15075EJ2V1UD
Data Memory
Internal High-Speed
RAM
512 bytes
5 bytes
15 bytes
µ
s: @ 5.0 MHz operation with main
µ
s: @ 4.0 MHz operation with main
LCD Display RAM
25
Advertisement
Table of Contents
