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SN74ABT18504

Texas Instruments
Part Number SN74ABT18504
Manufacturer Texas Instruments
Description SCAN TEST DEVICE
Published May 20, 2023
Detailed Description • Members of the Texas Instruments SCOPE ™ Family of Testability Products • Members of the Texas Instruments Widebus ™ F...
Datasheet PDF File SN74ABT18504 PDF File

SN74ABT18504
SN74ABT18504

Overview
• Members of the Texas Instruments SCOPE ™ Family of Testability Products • Members of the Texas Instruments Widebus ™ Family • Compatible With the IEEE Standard 1149.
1-1990 (JTAG) Test Access Port and Boundary-Scan Architecture • UBT ™ (Universal Bus Transceiver) Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Mode • Two Boundary-Scan Cells per I/O for Greater Flexibility • State-of-the-Art EPIC-ΙΙB ™ BiCMOS Design Significantly Reduces Power Dissipation SN54ABT18504, SN74ABT18504 SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS SCBS108B – AUGUST 1992 – REVISED JUNE 1993 • SCOPE ™ Instruction Set – IEEE Standard 1149.
1-1990 Required Instructions, Optional INTEST, and P1149.
1A CLAMP and HIGHZ – Parallel Signature Analysis at Inputs With Masking Option – Pseudo-Random Pattern Generation From Outputs – Sample Inputs/Toggle Outputs – Binary Count From Outputs – Device Identification – Even-Parity Opcodes • Packaged in 64-Pin Plastic Thin Quad Flat Pack Using 0.
5-mm Center-to-Center Spacings and 68-Pin Ceramic Quad Flat Pack Using 25-mil Center-to-Center Spacings SN54ABT18504 .
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HV PACKAGE (TOP VIEW) A3 A2 A1 GND OEBA LEBA TDO VCC NC TMS CLKBA CLKENBA B1 GND B2 B3 B4 A4 A5 A6 GND A7 A8 A9 A10 NC VCC A11 A12 A13 GND A14 A15 A16 9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 10 60 11 59 12 58 13 57 14 56 15 55 16 54 17 53 18 52 19 51 20 50 21 49 22 48 23 47 24 46 25 45 26 44 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 B5 B6 B7 GND B8 B9 B10 VCC NC B11 B12 B13 B14 GND B15 B16 B17 A17 A18 A19 GND A20 CLKENAB CLKAB TDI NC VCC TCK LEAB OEAB GND B20 B19 B18 NC – No internal connection SCOPE, Widebus, UBT, and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas Instruments standard warranty.
Production proc...


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