74AHCT245A

Octal bus transceiver; 3-state

The 74AHCT245A is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state.

The 74AHCT245A is designed to operate over a VCC range from 4.5 V to 5.5 V. The inputs are TTL compatible, which allows the device to be used to translate from 3.3 V to 5 V.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial Power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.

Features and benefits

  • Direct interface with TTL levels
  • Supply voltage range from 4.5 V to 5.5 V
  • Typical tpd of 3.0 ns at 5 V
  • Typical VOL(p) < 0.8 V at Vcc = 5 V, Tamb = 25 °C
  • Typical VOL(p) < 0.8 V at Vcc = 5 V, Tamb = 25 °
  • Supports mixed-mode voltage operation on all ports
  • IOFF circuitry provides partial Power-down mode operation
  • Latch-up performance exceeds 250 mA per JESD 78 Class II
  • ESD protection:
    • HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 3 kV
    • MM JESD22-A115-A exceeds 200 V
    • CDM JESD22-C101E exceeds 2 kV
  • Multiple package options
  • Specified from -40 °C to +85°C and from -40°C to +125°C

Parametrics

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capabilitytpd (ns)No of bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHCT245APWProduction4.5 - 5.5n.a.TTL+/- 83.0860low-40~1251014.745TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74AHCT245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveStandard Marking74AHCT245APWJ
( 9353 078 76118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
74AHCT245APW74AHCT245APWJ74AHCT245APWAlways Pb-free11
Quality and reliability disclaimer

Documentation (4)

File nameTitleTypeDate
74AHCT245AOctal bus transceiver; 3-stateData sheet2017-03-17
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21

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