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74ABT2952CMSA 반도체 회로 부품 판매점

Octal Registered Transceiver



Fairchild Semiconductor 로고
Fairchild Semiconductor
74ABT2952CMSA 데이터시트, 핀배열, 회로
January 1992
Revised November 1999
74ABT2952
Octal Registered Transceiver
General Description
The ABT2952 is an octal registered transceiver. Two 8-bit
back to back registers store data flowing in both directions
between two bidirectional buses. Separate clock, clock
enable and 3-STATE output enable signals are provided for
each register. The output pins are guaranteed to source 32
mA and to sink 64 mA.
Features
s Separate clock, clock enable and 3-STATE output
enable provided for each register
s A and B output sink capability of 64 mA source capability
of 32 mA
s Guaranteed output skew
s Guaranteed multiple output switching specifications
s Output switching specified for both 50 pF and 250 pF
loads
s Guaranteed simultaneous switching noise level and
dynamic threshold performance
s Guaranteed latchup protection
s High impedance glitch free bus loading during entire
power up and power down cycle
s Nondestructive hot insertion capability
Ordering Code:
Order Number Package Number
Package Description
74ABT2952CSC
M24B
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74ABT2952CMSA
MSA24
24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ABT2952CMTC
MTC24
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Device also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
A0A7
B0B7
OEA
CPA
CEA
OEB
CPB
CEB
Description
A-Register Inputs/B-Register
3-STATE Outputs
B-Register Inputs/A-Register
3-STATE Outputs
Output Enable A-Register
A-Register Clock
A-Register Clock Enable
Output Enable B-Register
B-Register Clock
B-Register Clock Enable
© 1999 Fairchild Semiconductor Corporation DS010969
www.fairchildsemi.com


74ABT2952CMSA 데이터시트, 핀배열, 회로
Truth Table
Output Control
Internal
OE Output
Q
Function
H X Z Disable Outputs
L L L Enable Outputs
L HH
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = HIGH Impedance
= LOW-to-HIGH Transition
NC = No Change
Block Diagram
Register Function Table (Applies to A or B Register)
Inputs
Internal
Function
D CP CE Q
X X H NC Hold Data
L L L Load Data
H L H
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74ABT2952CMSA transceiver

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74ABT2952CMSA

Octal Registered Transceiver - Fairchild Semiconductor