74LVC4245A

General description

The 74LVC4245A is an octal dual supply translating transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. It is designed to interface between a 3 V and 5 V bus in a mixed 3 V and 5 V supply environment.

The device features an output enable input (pin OE) for easy cascading and a send/receive input (pin DIR) for direction control. Pin OE controls the outputs so that the buses are effectively isolated.

In suspend mode, when V_CCA is zero, there will be no current flow from one supply to the other supply. The A-outputs must be set 3-state and the voltage on the A-bus must be smaller than V_diode (typical 0.7 V).

V_CCA ≥ V_CCB, except in suspend mode.

Features

• 5 V tolerant inputs/outputs, for interfacing with 5 V logic
• Wide supply voltage range:
  • 3 V port (V_CCB): 1.5 V to 3.6 V
  • 5 V port (V_CCA): 1.5 V to 5.5 V
• CMOS low-power consumption
• Direct interface with TTL levels
• Inputs accept voltages up to 5.5 V
• High-impedance when V_CC = 0 V
• Complies with JEDEC standard no. JESD8B/JESD36
• ESD protection:
  • HBM JESD22-A114E exceeds 2000 V
  • MM JESD22-A115-A exceeds 200 V
• Multiple package options
• Specified from -40 Cel to +85 Cel and -40 Cel to +125 Cel

Products/packages

Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.

Pricing/ordering/availability

Applications

Related applications
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Transceiver board
Main CPU board

Block diagrams/pinning

Technical documents

Application Notes

AN240; Interfacing 3 Volt and 5 Volt Applications (15-Sep-95)

AN263_2; Power considerations when using CMOS and BiCMOS logic devices (05-Feb-02)

Parametrics/similar products

Similar products

74LVC4245A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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