器件名称: 74ALVC164245
功能描述: 16-bit dual supply translating transceiver; 3-state
文件大小: 112.65KB 共19页
简 介:74ALVC164245
16-bit dual supply translating transceiver; 3-state
Rev. 04 — 11 November 2008 Product data sheet
1. General description
The 74ALVC164245 is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most advanced CMOS compatible TTL families. The 74ALVC164245 is a 16-bit (dual 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. This device can be used as two 8-bit transceivers or one 16-bit transceiver. The direction control inputs (1DIR and 2DIR) determine the direction of the data ow. nDIR (active HIGH) enables data from nA ports to nB ports. nDIR (active LOW) enables data from nB ports to nA ports. The output enable inputs (1OE and 2OE), when HIGH, disable both nA and nB ports by placing them in a high-impedance OFF-state. Pins nA, nOE and nDIR are referenced to VCC(A) and pins nB are referenced to VCC(B). In suspend mode, when one of the supply voltages is zero, there will be no current ow from the non-zero supply towards the zero supply. The A-outputs must be set 3-state and the voltage on the A-bus must be smaller than Vdiode (typical 0.7 V). VCC(B) ≥ VCC(A) (except in suspend mode).
2. Features
I 5 V tolerant inputs/outputs for interfacing with 5 V logic I Wide supply voltage range: N 3 V port (VCC(A)): 1.5 V to 3.6 V N 5 V port (VCC(B)): 1.5 V to 5.5 V I CMO……
