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HD74LVCZ245A

Hitachi Semiconductor
Part Number HD74LVCZ245A
Manufacturer Hitachi Semiconductor
Description Octal Bidirectional Transceivers with 3-state Outputs
Published Mar 23, 2005
Detailed Description HD74LVCZ245A Octal Bidirectional Transceivers with 3–state Outputs ADE-205-228A (Z) 2nd. Edition February 1999 Descript...
Datasheet PDF File HD74LVCZ245A PDF File

HD74LVCZ245A
HD74LVCZ245A

Overview
HD74LVCZ245A Octal Bidirectional Transceivers with 3–state Outputs ADE-205-228A (Z) 2nd.
Edition February 1999 Description The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package.
When (T / R ) is high, data flows from the A inputs to the B outputs, and when (T / R ) is low, data flows from the B inputs to the A outputs.
A and B bus are separated by making enable input (OE) high level.
When V CC is between 0 and 1.
5 V, the device is in the high impedance state during power up or power down.
Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features • VCC = 2.
7 to 5.
5 V • All inputs VIH (Max) = 5.
5 V (@VCC = 0 to 5.
5 V) • All inputs / outputs V I / O (Max) = 5.
5 V (@V CC = 0 V or output off state) • Typical VOL ground bounce < 0.
8 V (@VCC = 3.
3 V, Ta = 25°C) • Typical VOH undershoot > 2.
0 V (@VCC = 3.
3 V, Ta = 25°C) • High impedance state during power up and power down • Power off disables outputs, permitting live insertion • High output current ±24 mA (@V CC = 3.
0 to 5.
5 V) HD74LVCZ245A Function Table Inputs OE L L H H : High level L : Low level X : Immaterial Z : High impedance T/R L H X B data to A bus A data to B bus Z Operation Pin Arrangement T/R A0 A1 1 2 3 20 VCC 19 OE 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7 A2 4 A3 A4 A5 A6 A7 5 6 7 8 9 GND 10 (Top view) 2 HD74LVCZ245A Absolute Maximum Ratings Item Supply voltage Input voltage Input / output voltage Symbol VCC VI VI/O Ratings –0.
5 to 7.
0 –0.
5 to 7.
0 –0.
5 to 7.
0 –0.
5 to VCC+0.
5 Input diode current Output diode current Output current VCC, GND current Storage temperature I IK I OK IO I CC or IGND Tstg –50 –50 ±50 ±100 –65 to 150 mA mA mA mA °C Unit V V V Output “Z” or VCC : OFF Output “H” or “L” VI < 0 VO < 0 Conditions Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of wh...


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