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M51957B - System Resetting IC

Download the M51957B datasheet PDF. This datasheet also covers the M51957A variant, as both devices belong to the same system resetting ic family and are provided as variant models within a single manufacturer datasheet.

General Description

M51957A,B/M51958A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs, and has the feature of setting the detection voltage by adding external resistance.

Key Features

  • Few external parts.
  • Large delay time with a capacitor of small capacitance (td ≈ 100 ms, at 0.33 µF) (M51957, M51958).
  • 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 (M51957A-Renesas.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number M51957B
Manufacturer Renesas
File Size 174.48 KB
Description System Resetting IC
Datasheet download datasheet M51957B 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
M51957A,B/M51958A,B Voltage Detecting, System Resetting IC Series REJ03D0778-0300 Rev.3.00 Sep 18, 2007 Description M51957A,B/M51958A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs, and has the feature of setting the detection voltage by adding external resistance. 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) (M51957, M51958) • Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage): 0.