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M51954B - Voltage Detecting / System Resetting

Download the M51954B datasheet PDF. This datasheet also covers the M51953A variant, as both devices belong to the same voltage detecting / system resetting family and are provided as variant models within a single manufacturer datasheet.

General Description

M51953A,B/M51954A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of logic circuits such as CPUs.

They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor.

Key Features

  • Few external parts.
  • Large delay time with a capacitor of small capacitance (td ≈ 100 ms, at 0.33 µF) (M51953, M51954).
  • Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage): 0.6 V (Typ) at RL = 22 kΩ.
  • Wide supply voltage range: 2 V to 17 V.
  • Wide.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (M51953A-Renesas.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number M51954B
Manufacturer Renesas
File Size 217.18 KB
Description Voltage Detecting / System Resetting
Datasheet download datasheet M51954B Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
M51953A,B/M51954A,B Voltage Detecting, System Resetting IC Series REJ03D0776-0300 Rev.3.00 Sep 18, 2007 Description M51953A,B/M51954A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of logic circuits such as CPUs. They include a built-in delay circuit to provide the desired retardation time simply by adding an external capacitor. They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping circuit. Features • Few external parts • Large delay time with a capacitor of small capacitance (td ≈ 100 ms, at 0.33 µF) (M51953, M51954) • Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage): 0.