UPD75316GF datasheet(3/62 Pages) NEC

Part #	UPD75316GF

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

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

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µPD75312(A), 75316(A)

3

FUNCTIONAL OUTLINE (1/2)

Item

Function

Number of Basic

41

Instructions

Instruction Cycle

• 0.95

µs, 1.91 µs, 15.3 µs (Main system clock: operating at 4.19 MHz)

• 122

µs (Subsystem clock: operating at 32.768 kHz)

ROM

16256

× 8-bit (

µPD75316(A)), 12160 × 8-bit (µPD75312(A))

RAM

512

× 4 bits

General-Purpose

• 4-bit manipulation: 8 (B, C, D, E, H, L, X, A)

Registers

• 8-bit manipulation: 4

(BC, DE, HL, XA)

Accumulator

• Bit accumulator (CY)

• 4-bit accumulator (A)

• 8-bit accumulator (XA)

Instruction Set

• Abundant bit manipulation instructions

• Efficient 4-bit data manipulation instructions

• 8-bit data transfer instructions

• GETI instruction executing 2-/3-byte instruction with a single byte

I/O Line

40

8

CMOS input pins

Pull-up by software is possible.

: 23

16

CMOS input/output pins

8

CMOS output pins

Also serve as segment pins

8

N-ch open-drain input/output

Withstand voltage: 10 V

Pull-up by mask option is possible.

: 8

LCD Controller/

• Segment number selection: 24/28/32 segments

Driver

(4/8 pins can also be used as bit ports.)

• Display mode selection: Static, 1/2 duty, 1/3 duty (1/2 bias), 1/3 duty (1/3 bias), 1/4 duty

• Dividing resistor for LCD driving can be built-in by mask option.

Supply Voltage

VDD = 2.7 to 6.0 V

Range

Internal

Memory

Timer

3 chs

• 8-bit timer/event counter

• Clock source: 4 steps

• Event count is possible

• 8-bit basic interval timer

• Reference time generation: 1.95 ms, 7.82 ms, 31.3 ms, 250 ms

(operating at 4.19 MHz)

• Can be used as watchdog timer

• Watch timer

• Generates 0.5-second time intervals

• Count clock source: Main system clock or subsystem clock (selectable)

• Watch fast forward mode (generates 3.9-ms time intervals)

• Buzzer output (2 kHz)

Similar Part No. - UPD75316GF

Manufacturer	Part #	Datasheet	Description
NEC	UPD75316GF-XXX-3B9	3Mb / 71P	4-Bit, Single-Chip Microcontrollers With LCD Controller/Driver
Renesas Technology Corp	UPD75316GF-XXX-3B9	650Kb / 70P	MOS INTEGRATED CIRCUIT 1989
NEC	UPD75316GFA-XXX-3B9	3Mb / 71P	4-Bit, Single-Chip Microcontrollers With LCD Controller/Driver

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