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74AVC4TD245_15 Datasheet, PDF (1/26 Pages) NXP Semiconductors – 4-bit dual supply translating transceiver with configurable voltage translation; 3-state
74AVC4TD245
4-bit dual supply translating transceiver with configurable
voltage translation; 3-state
Rev. 2 — 9 December 2011
Product data sheet
1. General description
The 74AVC4TD245 is a 4-bit, dual supply transceiver that enables bidirectional level
translation. It features eight 1-bit input-output ports (An and Bn), four direction control
inputs (DIR1, DIR2, DIR3 and DIR4), 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 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 An, OE and DIRn are referenced to
VCC(A) and pins Bn are referenced to VCC(B). A HIGH on DIRn allows transmission from An
to Bn and a LOW on DIRn 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 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 An and Bn are in the high-impedance OFF-state.
2. Features and benefits
 Wide supply voltage range:
 VCC(A): 0.8 V to 3.6 V
 VCC(B): 0.8 V to 3.6 V
 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-A114E Class 3B exceeds 8000 V
 MM JESD22-A115-A exceeds 200 V
 CDM JESD22-C101C exceeds 1000 V
 Maximum data rates:
 380 Mbit/s ( 1.8 V to 3.3 V translation)
 200 Mbit/s ( 1.1 V to 3.3 V translation)
 200 Mbit/s ( 1.1 V to 2.5 V translation)
 200 Mbit/s ( 1.1 V to 1.8 V translation)
 150 Mbit/s ( 1.1 V to 1.5 V translation)
 100 Mbit/s ( 1.1 V to 1.2 V translation)