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PCF1252-X family

Selection guide

Datasheet

PCF1252-X family
(Product Specification)
16-Apr-98, 16 pages, 91 kB

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PCF1252-X family - Threshold detector and reset generator

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

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.

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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.

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCF1252-0T/F4PCF1252-0T/F4,1129351 632 80112Volume productionSOT96-1
(SO8) 		TubeStandard Marking
PCF1252-0T/F4PCF1252-0T/F4,1189351 632 80118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking
PCF1252-1T/F4PCF1252-1T/F4,1129351 546 30112Volume productionSOT96-1
(SO8) 		TubeStandard Marking
PCF1252-1T/F4PCF1252-1T/F4,1189351 546 30118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking
PCF1252-2T/F4PCF1252-2T/F4,1129351 632 90112Volume productionSOT96-1
(SO8) 		TubeStandard Marking
PCF1252-2T/F4PCF1252-2T/F4,1189351 632 90118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking
PCF1252-7T/F4PCF1252-7T/F4,1129351 633 40112Volume productionSOT96-1
(SO8) 		TubeStandard Marking
PCF1252-7T/F4PCF1252-7T/F4,1189351 633 40118Volume productionSOT96-1
(SO8) 		Tape reel smdStandard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCF1252-0T/F4PCF1252-0T/F4,112PCF1252-0T_F4
week 45, 2004
PCF1252-0T/F4PCF1252-0T/F4,118PCF1252-0T_F4
week 45, 2004
PCF1252-1T/F4PCF1252-1T/F4,112PCF1252-1T_F4
week 45, 2004
PCF1252-1T/F4PCF1252-1T/F4,118PCF1252-1T_F4
week 45, 2004
PCF1252-2T/F4PCF1252-2T/F4,112PCF1252-2T_F4
week 45, 2004
PCF1252-2T/F4PCF1252-2T/F4,118PCF1252-2T_F4
week 45, 2004
PCF1252-7T/F4PCF1252-7T/F4,112PCF1252-7T_F4
week 45, 2004
PCF1252-7T/F4PCF1252-7T/F4,118PCF1252-7T_F4
week 45, 2004

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCF1252-0T/F49351 632 80112  PCF1252-0T/F4,112  1.2800      Order samples
PCF1252-0T/F49351 632 80118  PCF1252-0T/F4,118  1.2800      not available
PCF1252-1T/F49351 546 30112  PCF1252-1T/F4,112  1.9500NADIGI-KEY CORPORATION1,037 11/20/2009Buy onlineOrder samples
PCF1252-1T/F49351 546 30118  PCF1252-1T/F4,118  1.9500NAMOUSER ELECTRONICS2,170 11/20/2009Buy onlinenot available
    NAMOUSER ELECTRONICS2,170 11/20/2009Buy online 
PCF1252-2T/F49351 632 90112  PCF1252-2T/F4,112  NADIGI-KEY CORPORATION229 11/20/2009Buy onlinenot available
PCF1252-2T/F49351 632 90118  PCF1252-2T/F4,118  1.2800      Order samples
PCF1252-7T/F49351 633 40112  PCF1252-7T/F4,112  NADIGI-KEY CORPORATION638 11/20/2009Buy onlinenot available
PCF1252-7T/F49351 633 40118  PCF1252-7T/F4,118  1.2800      Order samples
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Applications

  • Digital cellular radio systems with Time Division Multiple Access (TDMA) operation (GSM systems) in the 880 to 915 MHz frequency range.

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Block diagrams/pinning

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Parametrics/similar products

Type numberPackageOperating
temp.(Cel)		Single supply(VDC)Vtrip (typ.)(V)
PCF1252-1T/F4SOT96-1
(SO8)		-40~85-0.5 to 74.55
PCF1252-2T/F4SOT96-1
(SO8)		-40~85-0.5 to 74.25
PCF1252-7T/F4SOT96-1
(SO8)		-40~85-0.5 to 73.05


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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