UPD780034Y datasheet(4/42 Pages) NEC

Part #	UPD780034Y

Description	8-BIT SINGLE-CHIP MICROCONTROLLER

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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4

µPD780016Y, 780018Y

Internal

ROM

48K bytes

60K bytes

memory

Internal high-speed RAM

1024 bytes

Buffer RAM

32 butes

Internal expansion RAM

1024 bytes

Memory space

64K bytes

General registers

8 bits

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

Instruction cycle

On-chip instruction execution time selective function

When main system clock selected

0.4

µs/0.8 µs/1.6 µs/3.2 µs/6.4 µs (at 5.0 MHz)

When subsystem clock selected

122

µs (at 32.768 kHz)

Instruction set

• 16-bit operation

• Multiplcation/division (8 bits

× 8 bits,16 bits ÷ 8 bits)

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

• BCD adjustment, etc.

I/O ports

Total

: 88

• CMOS input

:

9

• CMOS I/O

: 79

A/D converter

• 8-bit resolution

× 8 channels

Serial interface

• 3-wire serial I/O mode (with automatic data transmit/receive function): 1 channel

• 3-wire serial I/O mode (with time division transfer function)

: 1 channel

•I2C bus mode (supporting multi-task)

: 1 channel

Timer

• 16-bit timer/event counter : 1 channel

• 8-bit timer/event counter : 4 channels

• Watch timer

: 1 channel

• Watchdog timer

: 1 channel

Timer output

5 (14-bit PWM output

× 1, 8-bit PWM output × 2)

Clock output

39.1 kHz, 78.1 kHz, 156 kHz, 313 kHz, 625 kHz, 1.25 MHz, 2.5 MHz, 5.0 MHz

(at main system clock of 5.0 MHz)

32.768 kHz (at subsystem clock of 32.768 kHz)

Buzzer output

2.4 kHz, 4.9 kHz, 9.8 kHz (at main system clock: at 5.0 MHz)

Vectored

Maskable

Internal : 12

interrupt

External : 7

sources

Non-maskable

Internal : 1

Software

1

Test input

Internal : 1

External : 1

Supply voltage

VDD = 2.7 to 5.5 V

Package

• 100-pin plastic QFP (14

× 20 mm)

OVERVIEW OF FUNCTION

Part Number

Item

µPD780016Y

µPD780018Y

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