Datasheet > 74AVCH2T45GN,115

74AVCH2T45GN,115

更新时间： 2025-09-24 19:14:43

品牌	Logo	应用领域
安世 - NEXPERIA		/
页数	文件大小	规格书
27页	295K
描述
输出电压类型:三态，非反相;单电路的通道数(channel):2;通道方向类型:双向;元器件封装:8-XSON;

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74AVCH2T45GN,115 数据手册

74AVCH2T45

Dual-bit, dual-supply voltage level translator/transceiver;

3-state

Rev. 7 — 20 February 2018

Product data sheet

1 General description

The 74AVCH2T45 is a dual bit, dual supply transceiver that enables bidirectional level

translation. It features two data input-output ports (nA and nB), a direction control input

(DIR) and dual supply pins (V_CC(A)and V_CC(B)). Both V_CC(A)and V_CC(B)can be supplied at

any voltage between 0.8 V and 3.6 V making the device suitable for translating between

any of the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nA and

DIR are referenced to V_CC(A)and pins nB are referenced to V_CC(B). A HIGH on DIR

allows transmission from nA to nB and a LOW on DIR allows transmission from nB to nA.

The device is fully specified for partial power-down applications using I_OFF. The I_OFF

circuitry disables the output, preventing any damaging backflow current through the

device when it is powered down. In suspend mode when either V_CC(A)or V_CC(B)are at

GND level, both A and B are in the high-impedance OFF-state.

The 74AVCH2T45 has active bus hold circuitry which is provided to hold unused or

floating data inputs at a valid logic level. This feature eliminates the need for external

pull-up or pull-down resistors.

2 Features and benefits

• Wide supply voltage range:

– V_CC(A): 0.8 V to 3.6 V

– V_CC(B): 0.8 V to 3.6 V

• High noise immunity

• Complies with JEDEC standards:

– JESD8-12 (0.8 V to 1.3 V)

– JESD8-11 (0.9 V to 1.65 V)

– JESD8-7 (1.2 V to 1.95 V)

– JESD8-5 (1.8 V to 2.7 V)

– JESD8-B (2.7 V to 3.6 V)

• ESD protection:

– HBM JESD22-A114F Class 3B exceeds 8000 V

– MM JESD22-A115-A exceeds 200 V

– CDM JESD22-C101C exceeds 1000 V

• Maximum data rates:

– 500 Mbps (1.8 V to 3.3 V translation)

– 320 Mbps (< 1.8 V to 3.3 V translation)

– 320 Mbps (translate to 2.5 V or 1.8 V)

– 280 Mbps (translate to 1.5 V)

– 240 Mbps (translate to 1.2 V)

• Suspend mode

• Bus hold on data inputs

12 3 4 5 6 7...27

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