D75316 데이터 시트보기 (PDF) - NEC => Renesas Technology

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D75316

4-bit single-chip microcomputer incorporating LCD controller/driver

NEC => Renesas Technology 

µPD75312(A), 75316(A)

FUNCTIONAL OUTLINE (1/2)

Item

Number of Basic

Instructions

Instruction Cycle

Internal

Memory

ROM

RAM

General-Purpose

Registers

Accumulator

Instruction Set

I/O Line

LCD Controller/

Driver

Supply Voltage

Range

Timer

Function

41

• 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)

16256 × 8-bit (µPD75316(A)), 12160 × 8-bit (µPD75312(A))

512 × 4 bits

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

• 8-bit manipulation: 4 (BC, DE, HL, XA)

• Bit accumulator (CY)

• 4-bit accumulator (A)

• 8-bit accumulator (XA)

• 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

40

8 CMOS input pins

16 CMOS input/output pins

Pull-up by software is possible.

: 23

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

• Segment number selection: 24/28/32 segments

(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.

VDD = 2.7 to 6.0 V

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)

3

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