參數(shù)資料
型號： SN54BCT8374AJT
廠商： Texas Instruments, Inc.
英文描述： SCAN TEST DEVICES WITH OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
中文描述： 掃描測試設(shè)備與八路D型邊沿觸發(fā)觸發(fā)器
文件頁數(shù)： 1/26頁
文件大?。?/td> 474K
代理商： SN54BCT8374AJT
SN54BCT8374A, SN74BCT8374A
SCAN TEST DEVICES
WITH OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
SCBS045E – JUNE 1990 – REVISED JULY 1996
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Members of the Texas Instruments
SCOPE
Family of Testability Products
Octal Test-Integrated Circuits
Functionally Equivalent to ’F374 and
’BCT374 in the Normal-Function Mode
Compatible With the IEEE Standard
1149.1-1990 (JTAG) Test Access Port and
Boundary-Scan Architecture
Test Operation Synchronous to Test
Access Port (TAP)
Implement Optional Test Reset Signal by
Recognizing a Double-High-Level Voltage
(10 V) on TMS Pin
SCOPE
Instruction Set
– IEEE Standard 1149.1-1990 Required
Instructions, Optional INTEST, CLAMP,
and HIGHZ
– Parallel-Signature Analysis at Inputs
– Pseudo-Random Pattern Generation
From Outputs
– Sample Inputs/Toggle Outputs
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic
(NT) and Ceramic (JT) 300-mil DIPs
description
The ’BCT8374A scan test devices with octal
edge-triggered D-type flip-flops are members of
the Texas Instruments SCOPE
testability
integrated-circuit family. This family of devices
supports IEEE Standard 1149.1-1990 boundary
scan to facilitate testing of complex circuit-board
assemblies. Scan access to the test circuitry is
accomplished via the 4-wire test access port
(TAP) interface.
In the normal mode, these devices are functionally equivalent to the ’F374 and ’BCT374 octal D-type flip-flops.
The test circuitry can be activated by the TAP to take snapshot samples of the data appearing at the device
terminals or to perform a self test on the boundary-test cells. Activating the TAP in normal mode does not affect
the functional operation of the SCOPE
octal flip-flops.
In the test mode, the normal operation of the SCOPE
octal flip-flops is inhibited and the test circuitry is enabled
to observe and control the I/O boundary of the device. When enabled, the test circuitry can perform
boundary-scan test operations as described in IEEE Standard 1149.1-1990.
Copyright
1996, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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CLK
1Q
2Q
3Q
4Q
GND
5Q
6Q
7Q
8Q
TDO
TMS
OE
1D
2D
3D
4D
5D
V
CC
6D
7D
8D
TDI
TCK
SN54BCT8374A . . . JT PACKAGE
SN74BCT8374A . . . DW OR NT PACKAGE
(TOP VIEW)
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12 13
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8D
TDI
TCK
NC
TMS
TDO
8Q
2D
1D
OE
NC
CLK
1Q
2Q
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4
G
N
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3
4
5
N
V
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SN54BCT8374A . . . FK PACKAGE
(TOP VIEW)
NC – No internal connection
C
SCOPE is a trademark of Texas Instruments Incorporated.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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