UPD754264 Datasheet 4-bit Single-chip Microcontrollers

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD754264 4-BIT SINGLE-CHIP.

Datasheet Details

Part number	UPD754264
Manufacturer	NEC (now Renesas Electronics)
File Size	318.86 KB
Description	4-BIT SINGLE-CHIP MICROCONTROLLERS
Datasheet	UPD754264_NEC.pdf

General Description

The µPD754264 is a 4-bit single-chip microcontroller which incorporates the EEPROMTM 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.

Key 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.
On-chip memory.
Program memory (ROM) 4096 × 8 bits.
Data memory (st.

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