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Part: UPD7564ACS
Category:
Description: 4-bit Single-chip Microcomputer
Company: NEC Electronics Inc.
Datasheet: Download UPD7564ACS datasheet File size : 6486 kB
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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 performs 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
· 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 P01/SCK P02/SO P03/SI P80 P81
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
µPD7564A
APPLICATIONS
µP D 7 5 6 4 A
: PPCs, printers, VCRs, audio equipments, etc. µPD7564A(A) : Automotive and transportation equipments, etc.
P82 CL2 CL1 VDD
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 functional 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
µPD7564A, 7564A(A)
ORDERING INFORMATION
Ordering Code Package 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) Quality Grade Standard Standard Special Special
5 5
µ P D 7 5 6 4 A C S -× × × µP D 7 5 6 4 A G - ××× µP D 7 5 6 4 A C S ( A ) - ××× µP D 7 5 6 4 A G ( A ) - ×××
Caution Remarks
Be sure to specify a mask option when ordering this device. "×××" 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
BLOCK DIAGRAM OF µPD7564A
P01/SCK INT0
P03/SI
P02/SO
P00/INT0
CLOCK CONTROL CL
CP
TIMER/EVENT COUNTER
TEST CONTROL
SERIAL INTERFACE
PROGRAM COUNTER (10)
ALU
C
A (4)
PORT0 BUFFER
4
P00P03
GENERAL REGISTERS H (2) PROGRAM MEMORY 1024 × 8 BITS INSTRUCTION DECODER STACK POINTER (6) L (4)
PORT8 LATCH BUFFER
3
P80P82
PORT10 LATCH BUFFER CL
4
P100P103
DATA MEMORY
µPD7564A, 7564A(A)
SYSTEM CLOCK GENERATOR
STANDBY CONTROL
64 × 4 BITS
PORT11 LATCH BUFFER
4
P110P113
CL1
CL2
VDD
VSS
RESET
3
Others parts begin by up
UP-1 UP-2 UP-3 UP-4 UP-5 UP-6 UP-7 UP-8 UP-9 UP-10 UP-11 UP-12 UP-13 UP-14 UP-15 UP-16 UP-17 UP-18 UP-19 UP-20 UP-21 UP-22 UP-23 UP-24 UP-25 UP-26 UP-27 UP-28
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