器件名称: 74ALVCH16245GRDR
功能描述: 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
文件大小: 465.24KB 共17页
简 介:SN74ALVCH16245 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
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SCES015L – JULY 1995 – REVISED NOVEMBER 2005
FEATURES
Member of the Texas Instruments Widebus Family Operates From 1.65 V to 3.6 V Max tpd of 3 ns at 3.3 V ±24-mA Output Drive at 3.3 V Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 - 2000-V Human-Body Model (A114-A) - 200-V Machine Model (A115-A)
DGG, DGV, OR DL PACKAGE (TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
This 16-bit (dual-octal) noninverting bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVCH16245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
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1DIR 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2DIR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE ……
