UPD754144 4-BIT SINGLE-CHIP MICROCONTROLLERS

NEC

Description

DATA SHEET µPD754144, 754244 4-BIT SINGLE-CHIP MICROCONTROLLERS MOS INTEGRATED CIRCUIT .
The µ PD754244 is a 4-bit single-chip microcontroller which incorporates the EEPROMTM for key-less entry application.

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Datasheet Specifications

Part number: UPD754144
Manufacturer: NEC
File Size: 416.13 KB
Datasheet: UPD754144_NEC.pdf
Description: 4-BIT SINGLE-CHIP MICROCONTROLLERS

Features

* On-chip EEPROM: 16 × 8 bits (mapped to the data memory) On-chip key return reset function for key-less entry System clock oscillation circuit
* µ PD754144: RC oscillator (external resistor and capacitor)
* µ PD7

Applications

* Automotive appliances such as key-less entry, compact data carrier, etc. Unless contextually excluded, references in this data sheet to the µ PD754244 (crystal/ceramic oscillation: fX) mean the µPD754144. The µPD754144 and µ PD754244 differ in the notation of their RC oscillation: whenever fX (RC os

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UPD754144 4-BIT SINGLE-CHIP MICROCONTROLLERS NEC

NEC UPD754144-like datasheet