UPD7564 datasheet(1/56 Pages) NEC

Part #	UPD7564

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

PDF	56 Pages

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Manufacturer	NEC [NEC]

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

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The mark 5 shows major revised points.

DESCRIPTION

The

µPD7564A is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is

of low-order models,

µPD7554 and 7564 sub-series in the µPD7500 series. With an on-chip serial interface, it per-

forms efficient dispersion processing of a system as a sub-CPU for the 75X series or 78k series.

The

µPD7564A has outputs to directly drive a triac and LEDs and allows selection among many types of input/

output circuits using their respective mask options, sharply reducing the number of external circuits required.

Details of functions are described in the User’s Manual shown below. Be sure to read in design.

µPD7554, 7564 User’s Manual: IEM-1111D

4-BIT SINGLE-CHIP MICROCOMPUTER

Document No.

IC-2401C

(O. D. No.

IC-7834C)

Date Published December 1994 P

Printed in Japan

µPD7564A, 7564A(A)

MOS INTEGRATED CIRCUIT

DATA SHEET

The information in this document is subject to change without notice.

FEATURES

• 47 types of instructions

(Subset of

µPD7500H SET B)

• Instruction cycle

Ceramic oscillation : 2.86

µs

(in operation at 700 kHz, 5 V)

• Program memory (ROM) capacity: 1024 × 8 bits

• Data memory (RAM) capacity: 64 × 4 bits

• Test source: One external source and two internal

sources

• 8-bit timer/event counter

• 15 I/O lines (Total output current of all pins: 100 mA)

• Can directly drive a triac and a LED: P80 to P82

• Can directly drive LEDs: P100 to P103 and P110 to

P113

• Mask option function provided for every port

• 8-bit serial interface

• Standby (STOP/HALT) function

• Low supply voltage data retaining function for data

memory

• Built-in ceramic oscillator for system clock

• Low power dissipation

• Single power supply (2.7 to 6.0 V)

PIN CONFIGURATION (TOP VIEW)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VSS

P113

P112

P111

P110

P103

P102

P101

P100

RESET

P00/INT0

P01/SCK

P02/SO

P03/SI

P80

P81

P82

CL2

CL1

VDD

APPLICATIONS

µPD7564A

: PPCs, printers, VCRs, audio equipments,

etc.

µPD7564A(A) : Automotive and transportation equip-

ments, etc.

The quality grade and absolute maximum ratings of the

µPD7564A and the µPD7564A(A) differ.

Except where specifically noted, explanations here concern the

µPD7564A as a representative product.

If you are using the

µPD7564A(A), use the information presented here after the checking the func-

tional differences.

5

©

1994

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