UPD17145 Datasheet, PDF (1/102 Pages) NEC – SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17145(A1), 17147(A1), 17149(A1)
SMALL, GENERAL-PURPOSE
4-BIT SINGLE-CHIP MICROCONTROLLERS
The µPD17145(A1), 17147(A1), and 17149(A1) are 4-bit single-chip microcontrollers integrating an 8-bit
A/D converter (4 channels), a timer function (3 channels), and a serial interface.
These microcontrollers employ a CPU of the general-purpose register type that can execute direct memory
operations and direct memory-to-memory data transfer for efficient programming. All the instructions consist
of 16 bits per word.
In addition, a one-time PROM version, the µPD17P149, is also available for program evaluation.
The functions of these microcontrollers are described in detail in the following User’s Manual. Be sure
to read the following manual when designing your system:
µPD17145 Subseries User’s Manual: IEU-1383
FEATURES
• 17K architecture
• Program memory (ROM)
• Data memory (RAM)
• External interrupt
• Instruction execution time
• 8-bit A/D converter
• Timer
• Serial interface
• POC circuit (mask option)
• Operating voltage
• Operating temperature
: General-purpose register type
: Instruction length fixed to 16 bits
: µPD17145(A1) : 2 KB (1024 × 16 bits)
: µPD17147(A1) : 4 KB (2048 × 16 bits)
: µPD17149(A1) : 8 KB (4096 × 16 bits)
: 110 × 4 bits
: 1 (INT pin, with sense input)
: 2 µs (at 8 MHz: ceramic oscillation)
: 4 channels, absolute accuracy: ±1.5 LSB MAX. (VDD = 4.0 to 5.5 V)
: 3 channels
: 1 channel (clocked 3-wire)
: VDD = 2.7 to 5.5 V (at 400 kHz to 2 MHz)
: VDD = 4.5 to 5.5 V (at 400 kHz to 8 MHz)
: Ta = –40 to +110 ˚C
APPLICATIONS
Automotive electronics, etc.
Unless contextually excluded, references in this data sheet to the µPD17149 (A1) mean the µPD17145
(A1) and µPD17147 (A1).
The information in this document is subject to change without notice.
Document No. U13233EJ1V1DS00 (1st edition)
(Previous No. IC-3580)
Date Published January 1998 N CP(K)
Printed in Japan
©
1995