D78054 Просмотр технического описания (PDF) - NEC => Renesas Technology

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производитель

D78054

8-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD78001B(A), 78002B(A)

OVERVIEW OF FUNCTION

Product Name

Item

Internal

memory

ROM

Internal high-

speed RAM

µPD78001B(A)

8K bytes

256 bytes

µPD78002B(A)

16K bytes

384 bytes

Memory space

64K bytes

General registers

8 bits × 32 registers (8 bits × 8 registers × 4 banks)

Instruction cycle

On-chip instruction execution time cycle modification function

When main system

clock selected

When subsystem

clock selected

0.4 µs/0.8 µs/1.6 µs/3.2 µs/6.4 µs (at 10.0 MHz operation)

122 µs (at 32.768 kHz operation)

Instruction set

• 16-bit operation

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

• BCD correction, etc.

I/O ports

Total

: 53

• CMOS input

: 02

• CMOS I/O

: 47

• N-channel open-drain I/O

(15 V withstand voltage) : 04

Serial interface

• 3-wire/SBI/2-wire mode selectable

Timer

• 8-bit timer/event counter

• Watch timer

• Watchdog timer

: 2 channels

: 1 channel

: 1 channel

Timer output

2

Clock output

39.1 kHz, 78.1 kHz, 156 kHz, 313 kHz, 625 kHz, 1.25 MHz (at main system clock 10.0 MHz operation),

32.768 kHz (at subsystem clock 32.768 kHz operation)

Buzzer output

Vectored Maskable

interrupts interrupts

2.4 kHz, 4.9 kHz, 9.8 kHz (at main system clock 10.0 MHz operation)

Internal : 5

External : 4

Non-maskable Internal : 1

interrupt

Software

interrupt

Internal : 1

Test input

Operating voltage range

Operating ambient

temperature range

Package

Internal : 1

External : 1

VDD = 2.7 to 6.0 V

–40 to +85°C

• 64-pin plastic shrink DIP (750 mil)

• 64-pin plastic QFP (s14 mm)

4

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