UPD754264 Datasheet, PDF (1/68 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD754264
4-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD754264 is a 4-bit single-chip microcontroller which incorporates the EEPROM^TM for key-less entry
application.
It incorporates a 32 × 8-bit EEPROM, a CPU performing operation, a 4-Kbyte mask ROM to store software,
a 128 × 4-bit RAM to store the operation data, an 8-bit resolution A/D converter, and a carrier generator which
easily outputs waveforms for infrared remote controller.
The details of functions are described in the following user’s manual. Be sure to read it before designing.
µPD754264 User’s Manual: U12287E
FEATURES
• On-chip EEPROM: 32 × 8 bits (mapped to the data memory)
• On-chip key return reset function for key-less entry
• On-chip low-voltage A/D converter (AVREF = 1.8 to 6.0 V), 8-bit resolution × 2 channels
• Low-voltage operation: VDD = 1.8 to 6.0 V
• Timer function (4 channels)
• Basic interval timer/watchdog timer : 1 channel
• 8-bit timer counter
: 3 channels
• On-chip memory
• Program memory (ROM)
4096 × 8 bits
• Data memory (static RAM)
128 × 4 bits
• Instruction execution time variable function suited for high-speed operation and power saving.
0.95, 1.91, 3.81, 15.3 µs (@ fX = 4.19-MHz operation)
0.67, 1.33, 2.67, 10.7 µs (@ fX = 6.0-MHz operation)
APPLICATIONS
Automotive appliances such as key-less entry, compact data carrier, etc.
ORDERING INFORMATION
Part Number
µPD754264GS-×××-BA5
Package
20-pin plastic SOP (300 mil, 1.27-mm pitch)
Remark ××× indicates ROM code suffix.
The information in this document is subject to change without notice.
Document No. U12487EJ1V1DS00
Date Published January 1999 N CP(K)
The mark shows major revised points.
Printed in Japan
©
1997