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74LVC8T245; 74LVCH8T245

8-bit dual supply translating transceiver; 3-state

The 74LVC8T245; 74LVCH8T245 are 8-bit dual supply translating transceivers with 3-state outputs that enable bidirectional level translation. They feature two data input-output ports (pins An and Bn), a direction control input (DIR), an output enable input (OE) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins An, OE and DIR are referenced to VCC(A) and pins Bn are referenced to VCC(B). A HIGH on DIR allows transmission from An to Bn and a LOW on DIR allows transmission from Bn to An. The output enable input (OE) can be used to disable the outputs so the buses are effectively isolated.

The devices are fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing any damaging backflow current through the device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at GND level, both A port and B port are in the high-impedance OFF-state.

Active bus hold circuitry in the 74LVCH8T245 holds unused or floating data inputs at a valid logic level.

特性

  • Wide supply voltage range:

    • VCC(A): 1.2 V to 5.5 V

    • VCC(B): 1.2 V to 5.5 V

  • High noise immunity

  • Complies with JEDEC standards:

    • JESD8-7 (1.2 V to 1.95 V)

    • JESD8-5 (1.8 V to 2.7 V)

    • JESD8C (2.7 V to 3.6 V)

    • JESD36 (4.5 V to 5.5 V)

  • Maximum data rates:

    • 420 Mbps (3.3 V to 5.0 V translation)

    • 210 Mbps (translate to 3.3 V)

    • 140 Mbps (translate to 2.5 V)

    • 75 Mbps (translate to 1.8 V)

    • 60 Mbps (translate to 1.5 V)

  • Suspend mode

  • Latch-up performance exceeds 100 mA per JESD 78B Class II

  • ±24 mA output drive (VCC = 3.0 V)

  • Inputs accept voltages up to 5.5 V

  • Low power consumption: 30 μA maximum ICC

  • IOFF circuitry provides partial Power-down mode operation

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 3A exceeds 4000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

参数类型

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVC8T245BQProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 243.58low-40~125665.840DHVQFN24
74LVC8T245BZProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 243.58low-40~125---DHXQFN24
74LVC8T245PWProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 243.58low-40~125812.336TSSOP24
74LVCH8T245BQProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 243.58low-40~125665.840DHVQFN24
74LVCH8T245PWProduction1.2 - 5.51.2 - 5.5CMOS/LVTTL± 243.58low-40~125812.336TSSOP24

封装

型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
74LVC8T245BQ
DHVQFN24
(SOT815-1) 		SOT815-1SOT815-1_118ActiveLVC8T24574LVC8T245BQ,118
( 9352 901 38118 )
74LVC8T245BZ
DHXQFN24
(SOT8024-1) 		SOT8024-1SOT8024-1_115ActiveYC8T24574LVC8T245BZX
( 9356 911 46115 )
74LVC8T245PW
TSSOP24
(SOT355-1) 		SOT355-1SSOP-TSSOP-VSO-WAVE
SOT355-1_118ActiveLVC8T24574LVC8T245PW,118
( 9352 901 49118 )
74LVCH8T245BQ
DHVQFN24
(SOT815-1) 		SOT815-1SOT815-1_118ActiveVCH8T24574LVCH8T245BQ,118
( 9352 901 48118 )
74LVCH8T245PW
TSSOP24
(SOT355-1) 		SOT355-1SSOP-TSSOP-VSO-WAVE
SOT355-1_118ActiveLVCH8T24574LVCH8T245PW,118
( 9352 901 51118 )

环境信息

型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
74LVC8T245BQ74LVC8T245BQ,11874LVC8T245BQAlways Pb-free
74LVC8T245BZ74LVC8T245BZX74LVC8T245BZ
74LVC8T245PW74LVC8T245PW,11874LVC8T245PWAlways Pb-free
74LVCH8T245BQ74LVCH8T245BQ,11874LVCH8T245BQAlways Pb-free
74LVCH8T245PW74LVCH8T245PW,11874LVCH8T245PWAlways Pb-free
品质及可靠性免责声明

文档 (8)

文件名称标题类型日期
74LVC_LVCH8T2458-bit dual supply translating transceiver; 3-stateData sheet2023-08-10
Nexperia_document_guide_Logic_translatorsNexperia Logic TranslatorsBrochure2021-04-12
lvc8t24574LVC8T245 IBIS modelIBIS model2021-02-02
lvch8t24574LVCH8T245 IBIS modelIBIS model2020-11-24
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT355-1plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-22
SOT8024-1plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 24 terminals; 0.4 mm pitch; body 2 mm x 4 mm x 0.48 mmPackage information2023-02-28
SOT815-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 24 terminals; 0.5 mm pitch; 5.5 mm x 3.5 mm x 1 mm bodyPackage information2021-08-17

支持

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模型

文件名称标题类型日期
lvc8t24574LVC8T245 IBIS modelIBIS model2021-02-02
lvch8t24574LVCH8T245 IBIS modelIBIS model2020-11-24

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