PCF1252-X Datasheet – Threshold Detector and Reset Generator

Part Number : PCF1252-X

Function : Threshold detector and reset generator

Package : DIP 8, SO 8 Pin type

Manufacturers : Philips Electronics

Pinouts :

PCF1252-X datasheet


Description :

The PCF1252-X are low-power CMOS voltage threshold detectors designed especially for supervision of microcontroller/microprocessor systems for detection of power-on/off conditions and generation of a system reset pulse. The PCF1252-X also provides aPOWF (power fail) output which is activated at a precise factory-programmed trip point. A system RESET output has a built-in delay with duration determined by an external capacitor (CCT).
A second comparator (comparator 2) has been included to enable the possibility of a second monitoring point in the system.

Features :

1. Very low current consumption, typically 10 µA
2. 10 factory programmed threshold voltages available covering trip voltages from 4.75 to 2.55 V
3. ±50 mV trip point accuracy over full temperature range
4. Variable RESET delay
5. RESET pulse polarity selection
6. Defined outputs at 0.6 V (typ.)
7. Comparator for second level detection (e.g. overvoltage detection)
8. Advance warning of power fail


PCF1252-X Datasheet PDF Download

PCF1252-X pdf

Other data sheets within the file :

PCF1252, PCF1252X, PCF1252-XP, PCF1252-XT

BD4926 Datasheet – CMOS Voltage Detector IC

Part Number : BD4926

Function : Voltage Detector IC Series / System Power Supply

Package : SSOP3, SSOP5, VSOF5 Type

Manufacturers : ROHM Semiconductor

Pinouts :

BD4926 datasheet


Description :

ROHM’s BD48xxx and BD49xxx, BD4926 series are highly accurate, low-current Voltage Detector IC series. The family includes BD48xxx devices with N-channel open drain output and BD49xxx devices with CMOS output. The devices are available for specific detection voltages ranging from 2.3V to 6.0V in increments of 0.1V.

Block Diagram


1. High accuracy detection
2. Ultra-low current consumption
3. Two output types (Nch open drain and CMOS output)
4. Wide Operating temperature range
5. Very small and low height package

Applications :

Circuits using microcontrollers or logic circuits that require a reset.

Other data sheets within the file : BD4823, BD4824, BD4825, BD4827

BD4926 Datasheet PDF Download

BD4926 pdf