UPD75068GBA データシートの表示（PDF） - NEC => Renesas Technology

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UPD75068GBA

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75064, 75066, 75068, 75064(A), 75066(A), 75068(A)

FUNCTION OVERVIEW

Item

Function

Instruction execution time • Main system clock : 0.95 µs, 1.91 µs, 15.3 µs (at 4.19 MHz)

• Subsystem clock : 122 µs (at 32.768 kHz)

Internal memory ROM

• µPD75064: 4096 × 8 bits

• µPD75066 : 6016 × 8 bits

• µPD75068 : 8064 × 8 bits

RAM 512 × 4 bits

General register

• When operating in 4 bits: 8

• When operating in 8 bits: 4

I/O port

32 12 CMOS input

Of these, seven with software-specifiable on-chip

pull-up resistors

12 CMOS I/O

Software-specifiable on-chip pull-up resistors

Four pins can directly drive LEDs.

8 N-ch open-drain I/O

Breakdown voltage: 10 V

Mask-option-specifiable on-chip pull-up resistors

Can directly drive LEDs.

Timer

Serial interface

3 chs.

• Timer/event counter

• Basic interval timer : Applicable to watchdog timer

• Watch timer : Capable of buzzer output

• 3-wire serial I/O mode

• 2-wire serial I/O mode

• SBI mode

Bit sequencial buffer

16 bits

Clock output function

Φ , fx/23, fx/24, fx/26 (Main system clock: at 4.19 MHz operation)

A/D converter

Vectored interrupt

• 8-bit resolution x 8 channels

• Low-power operation possible : VDD = 2.7 to 6.0 V

External : 3 , Internal : 3

Test input

External : 1, Internal : 1

System clock oscillator

Standby function

• Ceramic/crystal oscillator for main system clock

• Crystal oscillator for subsystem clock

STOP / HALT mode

Operating ambient

temperature

–40 to +85 °C

Operating supply

voltage

2.7 to 6.0 V

Package

• 42-pin plastic shrink DIP (600 mil)

• 44-pin plastic QFP (10 x 10 mm)

3

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