HEF4520BT-Q100

Dual binary counter

The HEF4520B-Q100 is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (nCP0) and an active LOW clock input (nCP1), buffered outputs from all four bit positions (nQ0 to nQ3) and an active HIGH overriding asynchronous master reset input (nMR).

The counter advances on either the LOW-to-HIGH transition of the nCP0 input if nCP1 is HIGH or the HIGH-to-LOW transition of the nCP1 input if nCP0 is LOW. Either nCP0 or nCP1 may be used as the clock input to the counter while the other clock input may be used as a clock enable input. Schmitt trigger action makes the clock input highly tolerant of slower clock rise and fall times. A HIGH on nMR resets the counter (nQ0 to nQ3 = LOW) independent of nCP0 and nCP1.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 3) and is suitable for use in automotive applications.

Features

  • Automotive product qualification in accordance with AEC-Q100 (Grade 3)
    • Specified from -40 °C to +85 °C
  • Tolerant of slow clock rise and fall times
  • Fully static operation • 5 V, 10 V, and 15 V parametric ratings
  • Standardized symmetrical output characteristics
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
  • Complies with JEDEC standard JESD 13-B

Target applications

Parametrics

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)fmax (MHz)Power dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
HEF4520BT-Q100Production4.5 - 15.5+/- 2.4CMOS1540medium-40~85909.050SO16

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4520BT-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1ActiveHEF4520BTHEF4520BT-Q100J
( 9353 045 06118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
HEF4520BT-Q100HEF4520BT-Q100JHEF4520BT-Q100Always Pb-free11
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
HEF4520B_Q100Dual binary counterData sheet2017-03-14
AN11051Pin FMEA HEF4000 familyApplication note2015-08-21
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT109-1_118SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-24
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18

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