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74ABT245CSJ
器件3D模型
2.305
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74ABT245CSJ数据手册
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© 1999 Fairchild Semiconductor Corporation DS010945 www.fairchildsemi.com
September 1991
Revised November 1999
74ABT245 Octal Bi-Directional Transceiver with 3-STATE Outputs
74ABT245
Octal Bi-Directional Transceiver with 3-STATE Outputs
General Description
The ABT245 contains eight non-inverting bidirectional buff-
ers with 3-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 64 mA on both
the A and B ports. The Transmit/Receive (T/R
) input deter-
mines the direction of data flow through the bidirectional
transceiver. Transmit (active HIGH) enables data from A
Ports to B Ports; Receive (active LOW) enables data from
B Ports to A Ports. The Output Enable input, when HIGH,
disables both A and B ports by placing them in a HIGH Z
condition.
Features
Bidirectional non-inverting buffers
A and B output sink capability of 64 mA, source
capability of 32 mA
Guaranteed output skew
Guaranteed multiple output switching specifications
Output switching specified for both 50 pF and 250 pF
loads
Guaranteed simultaneous switching, noise level and
dynamic threshold performance
Guaranteed latchup protection
High impedance glitch-free bus loading during entire
power up and power down cycle
Non-destructive hot insertion capability
Disable time is less than enable time to avoid bus
contention
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram Pin Descriptions
Order Number Package Number Package Description
74ABT245CSC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Body
74ABT245CSJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT245CMSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ABT245CMTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ABT245CPC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Pin Names Description
OE
Output Enable Input (Active LOW)
T/R
Transmit/Receive Input
A
0
A
7
Side A Inputs or 3-STATE Outputs
B
0
B
7
Side B Inputs or 3-STATE Outputs

74ABT245CSJ 数据手册

Fairchild(飞兆/仙童)
11 页 / 0.11 MByte
Fairchild(飞兆/仙童)
14 页 / 0.38 MByte

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