74ABT652CSCX

74ABT652CSCX Datasheet

74ABT652 Octal Transceivers and Registers with 3-STATE Outputs

Part	Datasheet
74ABT652CSCX	74ABT652CSCX (pdf)

Related Parts	Information
74ABT652CMSAX	74ABT652CMSAX
74ABT652CSC	74ABT652CSC
74ABT652CMTCX	74ABT652CMTCX
74ABT652CMTC	74ABT652CMTC
74ABT652CMSA	74ABT652CMSA

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74ABT652 Octal Transceivers and Registers with 3-STATE Outputs 74ABT652 Octal Transceivers and Registers with 3-STATE Outputs The ABT652 consists of bus transceiver circuits with Dtype flip-flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes to HIGH logic level. Output Enable pins OEAB, OEBA are provided to control the transceiver function. s Independent registers for A and B buses s Multiplexed real-time and stored data 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 74ABT652CSC M24B 24-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide Body 74ABT652CMSA MSA24 24-Lead Shrink Small Outline Package SSOP , EIAJ TYPE II, 5.3mm Wide 74ABT652CMTC MTC24 24-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Pin Descriptions Pin Assignment for SOIC, SSOP and TSSOP Pin Names CPAB, CPBA Data Register A Inputs/3-STATE Outputs Data Register B Inputs/3-STATE Outputs Clock Pulse Inputs SAB, SBA Select Inputs OEAB, OEBA Output Enable Inputs 1999 Fairchild Semiconductor Corporation DS011512.prf 74ABT652 Truth Table Inputs Inputs/Outputs Note 1 Operating Mode OEAB OEBA CPAB CPBA SAB SBA A0 thru A7 B0 thru B7 L X H L H or L H or L or L H or L X Input Input Isolation Store A and B Data X Input Not Specified Store A, Hold B X Input Output Store A in Both Registers X Not Specified Input Hold A, Store B X Output Input Store B in Both Registers L Output Input Real-Time B Data to A Bus X H or L X Store B Data to A Bus X Input Output

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74ABT652 Octal Transceivers and Registers with 3-STATE Outputs
74ABT652 Octal Transceivers and Registers with 3-STATE Outputs

The ABT652 consists of bus transceiver circuits with Dtype flip-flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes to HIGH logic level. Output Enable pins OEAB, OEBA are provided to control the transceiver function.
s Independent registers for A and B buses s Multiplexed real-time and stored data
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
74ABT652CSC

M24B
24-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide Body
74ABT652CMSA

MSA24
24-Lead Shrink Small Outline Package SSOP , EIAJ TYPE II, 5.3mm Wide
74ABT652CMTC

MTC24
24-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Pin Descriptions

Pin Assignment for SOIC, SSOP and TSSOP

Pin Names

CPAB, CPBA

Data Register A Inputs/3-STATE Outputs Data Register B Inputs/3-STATE Outputs Clock Pulse Inputs

SAB, SBA

Select Inputs

OEAB, OEBA Output Enable Inputs
1999 Fairchild Semiconductor Corporation DS011512.prf
74ABT652

Truth Table

Inputs

Inputs/Outputs Note 1

Operating Mode

OEAB OEBA CPAB CPBA SAB SBA A0 thru A7 B0 thru B7

L X H L

H or L H or L
or L H or L

X Input

Input

Isolation

Store A and B Data

X Input

Not Specified Store A, Hold B

X Input

Output

Store A in Both Registers

X Not Specified Input

Hold A, Store B

X Output

Input

Store B in Both Registers

L Output

Input

Real-Time B Data to A Bus

X H or L X

Store B Data to A Bus

X Input

Output

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Datasheet ID: 74ABT652CSCX 513065