PCF1252-1
Description
The PCF1252-Xs 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 a POWF (power fail) output which is activated at a precise factory-programmed trip point.
Key Features
- Very low current consumption, typically 10 µA
- 10 factory programmed threshold voltages available covering trip voltages from 4.75 to 2.55 V
- ±50 mV trip point accuracy over full temperature range
- Variable RESET delay
- RESET pulse polarity selection
- Defined outputs at 0.6 V (typ.)
- Comparator for second level detection (e.g. overvoltage detection)
- Advance warning of power fail
- Operating temperature range -40 to +85 °C. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME PCF1252-XP(1) PCF1252-XT(1) Note 1. X = 0 to 9; depending on threshold voltage. BLOCK DIAGRAM DIP8 SO8 DESCRIPTION plastic dual in-line package; 8 leads (300 mil)
