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74LVC_LVCH245A_15 Datasheet, PDF (1/18 Pages) NXP Semiconductors – Octal bus transceiver; 3-state | |||
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74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
Rev. 8 â 28 June 2013
Product data sheet
1. General description
The 74LVC245A; 74LVCH245A are 8-bit transceivers featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The device features an output
enable (OE) input for easy cascading and a send/receive (DIR) input for direction control.
OE controls the outputs so that the buses are effectively isolated.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices in mixed
3.3 V and 5 V applications.
The 74LVCH245A bus hold on data inputs eliminates the need for external pull-up
resistors to hold unused inputs.
2. Features and benefits
ï® 5 V tolerant inputs/outputs for interfacing with 5 V logic
ï® Wide supply voltage range from 1.2 V to 3.6 V
ï® CMOS low-power consumption
ï® Direct interface with TTL levels
ï® Inputs accept voltages up to 5.5 V
ï® High-impedance when VCC = 0 V
ï® Bus hold on all data inputs (74LVCH245A only)
ï® Complies with JEDEC standard:
ïµ JESD8-7A (1.65 V to 1.95 V)
ïµ JESD8-5A (2.3 V to 2.7 V)
ïµ JESD8-C/JESD36 (2.7 V to 3.6 V)
ï® ESD protection:
ïµ HBM JESD22-A114F exceeds 2000 V
ïµ MM JESD22-A115B exceeds 200 V
ïµ CDM JESD22-C101E exceeds 1000 V
ï® Specified from ï40 ï°C to +85 ï°C and ï40 ï°C to +125 ï°C
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