plastic dual in-line package; 8 leads (300 mil) PCF1252-X family GENERAL 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) outp.
• 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 pl.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | PCF1252-0 |
NXP |
Threshold detector and reset generator | |
2 | PCF1252-1 |
NXP |
Threshold detector and reset generator | |
3 | PCF1252-2 |
NXP |
Threshold detector and reset generator | |
4 | PCF1252-4 |
NXP |
Threshold detector and reset generator | |
5 | PCF1252-5 |
NXP |
Threshold detector and reset generator | |
6 | PCF1252-6 |
NXP |
Threshold detector and reset generator | |
7 | PCF1252-7 |
NXP |
Threshold detector and reset generator | |
8 | PCF1252-8 |
NXP |
Threshold detector and reset generator | |
9 | PCF1252-9 |
NXP |
Threshold detector and reset generator | |
10 | PCF1252-X |
NXP |
Threshold detector and reset generator | |
11 | PCF1251 |
Signetics |
Micropower DC Voltage Detector | |
12 | PCF1206 |
TT electronics |
Precision Thin Film Nichrome Chip Resistors |