Справочник Пользователя для IBM uPD78P081(A2)

µ

µ

µ

Internal memory

ROM

Mask ROM

PROM

8 Kbytes

16 Kbytes

24 Kbytes

High-speed RAM

256 bytes

384 bytes

512 bytes

Memory space

64 Kbytes

General register

8 bits 

×

 32 registers (8 bits 

×

 8 registers 

×

 4 banks)

Instruction cycle

Instruction execution time variable function is integrated.

0.4 

µ

s/0.8 

µ

s/1.6 

µ

s/3.2 

µ

s/6.4 

µ

s/12.8 

µ

s (@5.0-MHz operation with main system clock)

Instruction set

• 16-bit operation

• Multiply/divide (8 bits 

×

 8 bits, 16 bits 

÷

 8 bits)

• Bit manipulation (set, reset, test, Boolean operation)

• BCD adjust, etc.

I/O ports

Total

: 33

• CMOS input

: 1

• CMOS input/output

: 32

A/D converter

• 8-bit resolution 

×

 8 channels

Serial interface

• 3-wire serial I/O/UART mode selectable:  1 channel

Timer

• 8-bit timer/event counter:  2 channels

• Watchdog timer:  1 channel

Timer output

2 pins (8-bit PWM output enable)

Clock output

19.5 kHz, 39.1 kHz, 78.1 kHz, 156 kHz, 313 kHz, 625 kHz, 1.25 MHz, 2.5 MHz,

and 5.0 MHz  (@ 5.0-MHz operation with main system clock)

Buzzer output

1.2 kHz, 2.4 kHz, 4.9 kHz, and 9.8 kHz

(@ 5.0-MHz operation with main system clock)

Vectored

Maskable

Internal : 8 external : 3

interrupt

Non-maskable

Internal : 1

source

Software

1

Supply voltage

V

DD

 = 1.8 to 5.5 V

Operating ambient temperature

T

A

 = –40 to +85

°

C

Package

• 42-pin plastic shrink DIP (600 mil)

• 44-pin plastic QFP (10 

×

 10 mm)

• 42-pin ceramic shrink DIP (with window) (600 mil) (

µ

PD78P083 only)

Internal PROM and high-speed RAM capacities can be changed by setting the internal memory size

switching register (IMS).