74AVC4T245_15 Datasheet, PDF(1/27 Page) NXP Semiconductors – 4-bit dual supply translating transceiver with configurable voltage translation; 3-state

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74AVC4T245_15 Datasheet, PDF (1/27 Pages) NXP Semiconductors – 4-bit dual supply translating transceiver with configurable voltage translation; 3-state

74AVC4T245

4-bit dual supply translating transceiver with configurable

voltage translation; 3-state

Rev. 4 â 7 December 2011

Product data sheet

1. General description

The 74AVC4T245 is an 4-bit, dual supply transceiver that enables bidirectional level

translation. The device can be used as two 2-bit transceivers or as a 4-bit transceiver. It

features four 2-bit input-output ports (nAn and nBn), a direction control input (nDIR), a

output enable input (nOE) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and

VCC(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 nAn, nOE and nDIR are referenced to VCC(A) and pins nBn are referenced to

VCC(B). A HIGH on nDIR allows transmission from nAn to nBn and a LOW on nDIR allows

transmission from nBn to nAn. The output enable input (nOE) can be used to disable the

outputs so the buses are effectively isolated.

The device is 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 nAn and nBn are in the high-impedance OFF-state.

2. Features and benefits

ï® Wide supply voltage range:

ïµ VCC(A): 0.8 V to 3.6 V

ïµ VCC(B): 0.8 V to 3.6 V

ï® Complies with JEDEC standards:

ïµ JESD8-12 (0.8 V to 1.3 V)

ïµ JESD8-11 (0.9 V to 1.65 V)

ïµ JESD8-7 (1.2 V to 1.95 V)

ïµ JESD8-5 (1.8 V to 2.7 V)

ïµ JESD8-B (2.7 V to 3.6 V)

ï® ESD protection:

ïµ HBM JESD22-A114E Class 3B exceeds 8000 V

ïµ MM JESD22-A115-A exceeds 200 V

ïµ CDM JESD22-C101C exceeds 1000 V

ï® Maximum data rates:

ïµ 380 Mbit/s (ï³ 1.8 V to 3.3 V translation)

ïµ 200 Mbit/s (ï³ 1.1 V to 3.3 V translation)

ïµ 200 Mbit/s (ï³ 1.1 V to 2.5 V translation)

ïµ 200 Mbit/s (ï³ 1.1 V to 1.8 V translation)

ïµ 150 Mbit/s (ï³ 1.1 V to 1.5 V translation)

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