UPD75402ACT datasheet(2/48 Pages) NEC

2 / 48 page

µPD75402A(A)

DIFFERENCES BETWEEN THE

µPD75402A(A) AND µPD75402A

FUNCTIONAL OVERVIEW

Special

Standard

Item

Quality grade

Product

µPD75402A(A)

µPD75402A

Function

•

0.95, 1.91, or 15.3

µs (when operating at 4.19 MHz)

•

Switchable among three speeds

1920

× 8 bits

× 4 bits

4 bits

× 4 or 8 bits × 2 (memory mapping)

•

CMOS input ports

6 lines

•

CMOS I/O ports

: 12 lines (8 lines can drive the LED directly.)

•

N-ch open-drain I/O ports :

4 lines (All lines can drive the LED directly.)

•

Capable of controlling the incorporation of 16 pull-up resistors by software

•

Capable of controlling the incorporation of 4 pull-up resistors by mask option

•

1.05 MHz, 524 kHz, or 65.5 kHz (when operating at 4.19 MHz)

•

Applicable to remote controller output

8-bit basic interval timer (watchdog timer applicable)

•

8 bits

•

Two transfer modes (three-wire synchronous mode and SBI mode)

One external and two internal interrupts

One external input (See Chapter 6 for details.)

STOP/HALT mode

•

Bit manipulation instructions (set, clear, test, and Boolean operation)

•

1-byte relative branch instructions

•

4-bit operation instructions (add, Boolean operation, and compare)

•

4- and 8-bit transfer instructions

•

28-pin plastic DIP (600 mil)

•

28-pin plastic shrink DIP (400 mil)

•

44-pin plastic QFP (10

× 10 mm)

Item

Number of basic

instructions

Minimum instruction

execution time

ROM

RAM

General register

I/O line

Pull-up resistor

Clock output

Timer/counter

Serial interface

Vectored interrupt

Test input

Standby

Instruction set

Package

Built-in

memory

UPD75402ACT Datasheet(PDF) 2 Page - NEC

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