Akai PDP4273M Service Manual page 53

Features
·
Operating voltage:
f =4MHz: 2.2V~5.5V
SYS
f =8MHz: 3.3V~5.5V
SYS
·
13 bidirectional I/O lines
·
An interrupt input shared with an I/O line
·
8-bit programmable timer/event counter with over-
flow interrupt and 8-stage prescaler
·
On-chip crystal and RC oscillator
·
Watchdog Timer
·
1024´14 program memory ROM
·
64´8 data memory RAM
·
Buzzer driving pair and PFD supported
General Description
The HT48R06A-1/HT48C06 are 8-bit high perfor-
mance, RISC architecture microcontroller devices spe-
cifically designed for cost-effective multiple I/O control
product applications. The mask version HT48C06 is
fully pin and functionally compatible with the OTP ver-
sion HT48R06A-1 device.
Block Diagram
Rev. 1.30
HT48R06A-1/HT48C06
8-Bit Cost-Effective I/O Type MCU
·
HALT function and wake-up feature reduce power
consumption
·
Up to 0.5ms instruction cycle with 8MHz system clock
at V =5V
DD
·
Allinstructionsinoneortwomachinecycles
·
14-bit table read instruction
·
Two-level subroutine nesting
·
Bit manipulation instruction
·
63 powerful instructions
·
Low voltage reset function
·
16-pin SSOP package
18-pin DIP/SOP package
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, HALT and
wake-up functions, watchdog timer, buzzer driver, as
well as low cost, enhance the versatility of these devices
to suit a wide range of application possibilities such as
industrial control, consumer products, subsystem con-
trollers, etc.
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August 7, 2003