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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) 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
- 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.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCF1252-0T/F4 | PCF1252-0TD | 9351 632 80112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCF1252-0T/F4
| week 45, 2004 |
| PCF1252-0T/F4 | PCF1252-0TD-T | 9351 632 80118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCF1252-0T/F4
| week 45, 2004 |
| PCF1252-1T/F4 | PCF1252-1TD | 9351 546 30112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCF1252-1T/F4
| week 45, 2004 |
| PCF1252-1T/F4 | PCF1252-1TD-T | 9351 546 30118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCF1252-1T/F4
| week 45, 2004 |
| PCF1252-2T/F4 | PCF1252-2TD-T | 9351 632 90118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCF1252-2T/F4
| week 45, 2004 |
| PCF1252-2T/F4 | PCF1252-2TD | 9351 632 90112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCF1252-2T/F4
| week 45, 2004 |
| PCF1252-7T/F4 | PCF1252-7TD-T | 9351 633 40118 | Volume production | SOT96-1
(SO8) | Tape reel smd | Standard Marking | PCF1252-7T/F4
| week 45, 2004 |
| PCF1252-7T/F4 | PCF1252-7TD | 9351 633 40112 | Volume production | SOT96-1
(SO8) | Tube | Standard Marking | PCF1252-7T/F4
| week 45, 2004 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCF1252-0T/F4 | 9351 632 80112 | 1.2800 | Order samples | |||||
| PCF1252-0T/F4 | 9351 632 80118 | 1.2800 | not available | |||||
| PCF1252-1T/F4 | 9351 546 30112 | 1.9500 | NA | DIGI-KEY CORPORATION | 1,400 | 9/6/2008 | Buy online | Order samples |
| PCF1252-1T/F4 | 9351 546 30118 | 1.9500 | NA | FUTURE ELECTRONICS | 1,500 | 9/5/2008 | Buy online | not available |
| NA | MOUSER ELECTRONICS | 2,275 | 9/5/2008 | Buy online | ||||
| PCF1252-2T/F4 | 9351 632 90118 | 1.2800 | Order samples | |||||
| PCF1252-2T/F4 | 9351 632 90112 | NA | DIGI-KEY CORPORATION | 629 | 9/6/2008 | Buy online | not available | |
| PCF1252-7T/F4 | 9351 633 40118 | 1.2800 | Order samples | |||||
| PCF1252-7T/F4 | 9351 633 40112 | NA | DIGI-KEY CORPORATION | 1,430 | 9/6/2008 | Buy online | not available |
Applications
- Digital cellular radio systems with Time Division Multiple Access (TDMA) operation (GSM systems) in the 880 to 915 MHz frequency range.
Parametrics/similar products
| Type number | Package | Operating temp.(Cel) | Single supply(VDC) | Vtrip (typ.)(V) |
|---|---|---|---|---|
| PCF1252-1T/F4 | SOT96-1
(SO8) | -40~85 | -0.5 to 7 | 4.55 |
| PCF1252-2T/F4 | SOT96-1
(SO8) | -40~85 | -0.5 to 7 | 4.25 |
| PCF1252-7T/F4 | SOT96-1
(SO8) | -40~85 | -0.5 to 7 | 3.05 |
Similar products
PCF1252-X family links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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