參數(shù)資料
型號(hào)： UPD754264GS
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 4位單晶片微控制器
文件頁(yè)數(shù)： 1/68頁(yè)
文件大小： 318K
代理商： UPD754264GS
1997
DATA SHEET
DESCRIPTION
The
μ
PD754264 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.
μ
PD754264 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 (AV
REF
= 1.8 to 6.0 V), 8-bit resolution
×
2 channels
Low-voltage operation: V
DD
= 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
μ
s (@ f
X
= 4.19-MHz operation)
0.67, 1.33, 2.67, 10.7
μ
s (@ f
X
= 6.0-MHz operation)
APPLICATIONS
Automotive appliances such as key-less entry, compact data carrier, etc.
ORDERING INFORMATION
Part Number
Package
μ
PD754264GS-
×××
-BA5
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.
4-BIT SINGLE-CHIP MICROCONTROLLERS
μ
PD754264
The mark shows major revised points.
MOS INTEGRATED CIRCUIT
Document No. U12487EJ1V1DS00
Date Published January 1999 N CP(K)
Printed in Japan
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