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Part: UPD7566AA
Category:
Description: 4-bit Single-chip Microcomputer
Company: NEC Electronics Inc.
Datasheet: Download UPD7566AA datasheet File size : 6486 kB
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD7566A, 7566A(A)
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD7566A is a product of the µPD7554, 7564 sub-series which is a low-end, low-cost version of the µPD7500 series microcomputers. This 4-bit single-chip microcomputer has fewer ports than the other products in the µPD7500 series, in order to reduce the package size, and is especially ideal for temperature control applications, as well as for application systems, such as air conditioners, microwave ovens, refrigerators, rice cooker, washing machines, and cassette deck controllers. Some of the output pins for the microcomputer can be used to directly drive triacs and LEDs. In addition, various I/O circuits can be selected by mask options, so that the number of necessary external circuits can be significantly reduced. A detailed function description is provided in the following user's manual. Be sure to read this manual when designing your system. µPD7556, 7566 User's Manual: IEM-1111D
FEATURES
· 45 instructions (subset of the µPD7500H SET B) · Instruction cycle: 2.86 microseconds (700 kHz, at 5V) with ceramic oscillator · Program memory (ROM): 1,024 words x 8 bits · Data memory (RAM): 64 words x 4 bits · Test sources: 1 external and 1 internal · 8-bit timer/event counter · 19 I/O lines (total output current: 100 mA) . Five pins can be used to directly drive triacs and LEDS : P80 to P82, P90 to P91 . Eight pins can be used to directly drive LEDs : P100 to P103, P110 to P113 . Four comparator input pins: P10/Cin 0 to P13/Cin 3 . Mask option functions available on all ports · Standby functions (STOP/HALT) · Data memory contents can be retained on a low voltage · Internal ceramic oscillator for system clock oscillation · CMOS · Low-power dissipation · Single power source (2.7 to 6.0V) APPLICATIONS
PIN CONFIGURATION (Top View)
P00/INT0 P01/Vref P10/Cin0 P11/Cin1 P12/Cin2 P13/Cin3 P80 P81 P82 CL2 CL1 VDD
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VSS P91 P90 P113 P112 P111 P110 P103 P102 P101 P100 RESET
µ PD7566A
5
µPD7566A
: Air conditioner, microwave oven, refrigerator, audio equipment controller, etc. µPD7566A(A) : Automotive and transportation equipments, etc. The quality level and absolute maximum ratings of the µPD7566A and the µPD7566A(A) differ. Except where specifically noted, explanations here concern the µPD7566A as a representative product. If you are using the µPD7566A(A), use the information presented here after checking the functional differences.
The information in this document is subject to change without notice. The 5 mark shows major revised points.
Document No. IC-2478D (O. D. No. IC-7885D) Date Published December 1994 P Printed in Japan
©
94 1989
µPD7566A, 7566A(A)
ORDERING INFORMATION
Part Number Package 24-pin plastic shrink DIP (300 mil) 24-pin plastic SOP (300 mil) 24-pin plastic shrink DIP (300 mil) 24-pin plastic SOP (300 mil) Quality Grade Standard Standard Special Special
µPD7566ACS-xxx µPD7566AG-xxx
5 5
µPD7566ACS(A)-xxx µPD7566AG(A)-xxx
Caution Be sure to specify mask options when placing your order. Remark xxx indicates 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
µPD7566A BLOCK DIAGRAM
INT0/P00
CLOCK CONTROL CL
CP
TIMER/ EVENT COUNTER
INTT
TEST CONTROL
PORT0 BUFFER
P00/INT0 P01/Vref
PC(10)
ALU(4)
C
A(4)
PORT1 BUFFER /COMPARATOR
4
P10/Cin0 - P13/Cin3
H(2) PROGRAM MEMORY 1024X8 BITS
L(4)
PORT8 LATCH BUFFER
3
P80 - P82
INSTRUCTION DECODER
SP(6)
PORT9 LATCH BUFFER
2
P90, P91
CL
Ø DATA MEMORY 64X4 BITS STANDBY CONTROL
PORT10 LATCH BUFFER
µPD7566A, 7566A(A)
4
P100 - P103
SYSTEM CLOCK GENERATOR
PORT11 LATCH BUFFER
4
P110 - P113
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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