UPD7564A. D7564A Datasheet

D7564A UPD7564A. Datasheet pdf. Equivalent


NEC D7564A
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD7564A, 7564A(A)
4-BIT SINGLE-CHIP MICROCOMPUTER
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
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
APPLICATIONS
µPD7564A : PPCs, printers, VCRs, audio equipments,
etc.
µPD7564A(A) : Automotive and transportation equip-
ments, etc.
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)
P00/INT0
1
20 VSS
P01/SCK
2
19 P113
P02/SO
3
18 P112
P03/SI
4
17 P111
P80 5
16 P110
P81 6
15 P103
P82 7
14 P102
CL2 8
13 P101
CL1 9
12 P100
VDD
10
11
RESET
5
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.
The information in this document is subject to change without notice.
Document No. IC-2401C
(O. D. No. IC-7834C)
Date Published December 1994 P
Printed in Japan
The mark 5 shows major revised points.
© 1994


D7564A Datasheet
Recommendation D7564A Datasheet
Part D7564A
Description UPD7564A
Feature D7564A; DATA SHEET www.datasheet4u.com MOS INTEGRATED CIRCUIT µPD7564A, 7564A(A) 4-BIT SINGLE-CHIP MICROCO.
Manufacture NEC
Datasheet
Download D7564A Datasheet




NEC D7564A
µPD7564A, 7564A(A)
www.datasheet4u.com
ORDERING INFORMATION
Ordering Code
Package
Quality Grade
µPD7564ACS-×××
µPD7564AG-×××
5 µPD7564ACS(A)-×××
5 µPD7564AG(A)-×××
20-pin plastic shrink DIP (300 mil)
20-pin plastic SOP (300 mil)
20-pin plastic shrink DIP (300 mil)
20-pin plastic SOP (300 mil)
Standard
Standard
Special
Special
Caution Be sure to specify a mask option when ordering this device.
Remarks "×××" is a ROM code number.
Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
2



NEC D7564A
P00/INT0
CLOCK
CONTROL
CP TIMER/EVENT
COUNTER
CL
INT0
P01/SCK P03/SI
P02/SO
TEST
CONTROL
SERIAL
INTERFACE
PROGRAM COUNTER (10)
ALU
PROGRAM MEMORY
1024 × 8 BITS
INSTRUCTION
DECODER
C A (4)
GENERAL REGISTERS
H (2)
L (4)
STACK POINTER (6)
CL φ
SYSTEM
CLOCK
GENERATOR
STANDBY
CONTROL
DATA MEMORY
64 × 4 BITS
CL1 CL2
VDD VSS RESET
PORT0
BUFFER
4 P00–P03
PORT8
LATCH
BUFFER
3 P80–P82
PORT10
LATCH
BUFFER
4 P100–P103
PORT11
LATCH
BUFFER
4 P110–P113





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