Document
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75512(A)
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD75512(A) is a 4-bit single-chip microcomputer which employs 75X series architecture, and its performance is comparable to that of an 8-bit microcomputer. In addition to its high-speed processing capabilities, the µPD75512(A) is also capable of processing data in units of 1, 4, or in 8-bits. With its internally provided A/D converter and serial interface, the µPD75512(A) provides the highest performance in its class. Detailed functions are described in the following user‘s manual. Be sure to read it for designing.
µPD75516 User‘s Maual: IEM-5049
FEATURES
• Higher reliability than µPD75512 • Adequate I/O lines: 64 (can be provided with pull-up/pull-down resistors: 47) • Built-in 8-bit serial interface: 2-ch NEC standard serial bus interface (SBI) internally provided • Built-in 8-bit A/D converter: 8-ch • Variable instruction execution time function which is convenient for high-speed operation and power saving · 0.95 µs/1.95 µs/15.3 µs (at 4.19 MHz operation), · 122 µs (at 32.768 kHz operation) • Program memory (ROM) size: 12,160 × 8 bits • Data memory (RAM) size: 512 × 4 bits • High-performance timer function: 4-ch · 8-bit timer/event counter · Watch timer · 8-bit basic interval timer · Timer/pulse generator: Capable of outputting 14-bit PWM • Clock operation for reduced power consumption possible (5 µA TYP. at 3 V operation) • PROM version (µPD75P516) available
APPLICATIONS
Switable for automotive and transportation equipments, etc.
The information in this document is subject to change without notice.
Document No. IC-2815A (O. D. No. IC-8265A) Date Published January 1994 P Printed in Japan
The mark 5 shows major revised points.
© NEC Corporation 1991
µPD75512(A)
ORDERING INFORMATION
Part Number Package 80-pin plastic QFP (14 × 20mm) 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. Difference between µPD75512(A) and µPD75512 Quality Grade Special
µPD75512GF(A)-xxx-3B9
Product Item Quality Grade
µPD75512(A)
µPD75512
Special
Standard
Absolute Maximum Ratings Electrical Specifications DC Characteristics
Differ in high-level and low-level output current
Differ in low-level output voltage
A/D Converter Characteristics
Differ in ambient temperature range and absolute accuracy
2
µPD75512(A)
µPD75512(A) FUNCTIONS
Item Internal Memory Size ROM RAM 12160 × 8 bits 512 × 4 bits (4 bits × 8 or 8 bits × 4) × 4 banks • 0.95 µs/1.91 µ s/15.3 µ s (Main system clock: at 4.19 MHz) • 122 µs (Subsystem clock: at 32.768 kHz) 64 lines 16 lines (also serve as INT, SIO, PPO, analog input; can be pulled up by software: 7 lines) 28 lines • Can be pulled up by software: 16 lines • Can be pulled down by mask option: 4 lines 20 lines (10 V withstand voltage; pins that can be pulled up by mask option: 20) 8-bit resolution × 8 channels (successive approxmation type) • Operation voltage: VDD = 3.5 to 6.0 V Function
5
Genearl-Purpose Register Instruction Cycle
Total CMOS Inputs Input/ Output Ports
CMOS Input/Outputs
N-ch Open-Drain Input/Outputs A/D Converter
Timer/Counter
4 channels
• • • •
Timer/event counter Basic interval timer Timer/pulse generator (capable of outputting 14-bit PWM) Watch timer
Serial Interface Vector Interrupt Test Input
2 channels
• NEC standard serial bus interface (SBI)/3-line SIO: 1 channel • Normal clock synchronized serial interface (3-line SIO): 1 channel
External: 3, Internal: 4 External: 1, Internal: 1 • Bit data set/reset/test/boolean operation instruction • 4-bit data transfer/operation/increment/decrement /compare instructions • 8-bit data transfer/operation/increment/decrement /compare instructions • Ceramic/crystal oscillator for main system clock: 4.19 MHz • Crystal oscillator for subsystem clock: 32.768 kHz VDD = 2.7 V to 6.0 V 80-pin plastic QFP (14 × 20mm)
Instruction Set
System Clock Generator Operation Voltage Package
3
µPD75512(A)
CONTENTS
1.
PIN CONFIGURATION .....................................................................................................................
6
2.
INTERNAL BLOCK DIAGRAM .........................................................................................................
7
3.
PIN FUNCTIONS ..............................................................................................................................
3.1 3.2 3.3 3.4 3.5 PORT PINS ............................................................................................................................................. NON-PORT PINS ................................................................................................................................... PIN INPUT/OUTPUT CIRCUITS .....................................................................