Document
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75004, 75006, 75008
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION The µPD75008 is one of the 75X Series 4-bit single-chip microcomputer. In addition to high-speed operation with 0.95 µs minimum instruction execution time for the CPU, the
µPD75008 employs a serial bus interface with standard NEC format, the µPD75004 is a powerful product with a high cost/performance ratio.
The µPD75P008 with PROM, which is provided with µPD75008, is applicable for evaluating systems under development, or for small-scale production of developed systems.
Detailed functions are described in the following user’s manual. Be sure to read it for designing. µPD7500X Series User’s Manual: IEM-5033
FEATURES • Capable of high-speed operation and variable instruction execution time to power save • 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) • 75X architecture comparable to that for an 8-bit microcomputer is employed • Built-in NEC standard serial bus interface (SBI) • Clock operation at reduced power dissipation (5 µA TYP. : operating at 3 V) • Enhanced timer function (3 channels) • Interrupt functions especially enhanced for applications, such as remote control receiver
APPLICATIONS VCRs, CD players, telephones, cameras, blood pressure gauges, etc.
Unless otherwise specified, µPD75008 is treated as the representative model throughout this manual.
The information in this document is subject to change without notice.
Document No. IC-2633C (O. D. No. IC-7673E)
Date Published November 1993 P Printed in Japan
The mark 5 shows major revised points.
© NEC Corporation 1990
µPD75004, 75006, 75008
ORDERING INFORMATION
Part Number
µPD75004CU-xxx µPD75004GB-xxx-3B4 µPD75006CU-xxx µPD75006GB-xxx-3B4 µPD75008CU-xxx µPD75008GB-xxx-3B4
Package
42-pin plastic shrink DIP (600 mil) 44-pin plastic QFP (s10 mm) 42-pin plastic shrink DIP (600 mil) 44-pin plastic QFP (s10 mm) 42-pin plastic shrink DIP (600 mil) 44-pin plastic QFP (s10 mm)
Quality Grade
Standard Standard Standard Standard Standard Standard
Remarks: xxx is 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.
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µPD75004, 75006, 75008
FUNCTIONAL OUTLINE
Item
Function
Instruction Execution Time
0.95, 1.91, and 15.3 µs, (Main system clock: operating at 4.19 MHz) 122 µs (Subsystem clock: operating at 32.768 kHz)
4096 × 8-bit (µPD75004)
Internal Memory
ROM
6016 × 8-bit (µPD75006) 8064 × 8-bit (µPD75008)
RAM 512 × 4-bit
General-Purpose Registers
• 4-bit manipulation: 8 • 8-bit manipulation: 4
8 CMOS Input pins 18 CMOS input/output pins
Internal pull-up resistor specification by software is possible. : 25
I/O Port
34 Can directly drive LED: 4
8 N-ch open-drain input/output Can directly drive LED: 8
Withstand voltage: 10V Internal pull-up resistor specification by mask option is possible.
Timer/event counter
Timer
3 chs Basic interval timer: Also serves as watchdog timer
Watch timer: Buzzer output possible
Serial Interface
3-line serial I/O mode 2-line serial I/O mode SBI mode
Bit Sequential Buffer
16 bits
Clock Output Function Φ, fx/23, fx/24, fx/26
Vector Interrupt
External: 3, Internal: 3
Test Input
External: 1, Internal: 1
System Clock Oscillator
Main system clock oscillation ceramic/crystal oscillator Subsystem clock oscillation crysal ocillator
Standby Function
STOP/HALT mode
Operating Temperature Range
–40 to +85°C
Operating Supply Voltage
2.7 to 6.0 V
Package
42-pin plastic shrink DIP (600 mil) 44-pin plastic QFP (s10 mm)
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CONTENTS
µPD75004, 75006, 75008
1. PIN CONFIGURATION (TOP VIEW) ............................................................................................... 6
2. BLOCK DIAGRAM ........................................................................................................................... 8
3. PIN FUNCTIONS .............................................................................................................................. 9 3.1 PORT PINS ............................................................................................................................................. 9 3.2 NON PORT PINS ................................................................................................................................... 11 3.3 PIN INPUT/OUTPUT CIRCUITS ........................................................................................................... 12 3.4 SELECTION OF MASK OPTION .......................................................................................................... 14 3.5 RECOMMENDED PROCESSING OF UNUSED PINS .......................................................................... 14 3.6 NOTES ON USING THE P00/INT4, AND RESET PINS ..................................................