SN54BCT374_07 Datasheet, PDF (1/17 Pages) Texas Instruments – OCTAL EDGE-TRIGGERED D-TYPE LATCHES WITH 3-STATE OUTPUTS

D Operating Voltage Range of 4.5 V to 5.5 V
D State-of-the-Art BiCMOS Design
Significantly Reduces I_CCZ
D Full Parallel Access for Loading
D Buffered Control Inputs
SN54BCT374 . . . J OR W PACKAGE
SN74BCT374 . . . DW, N, OR NS PACKAGE
(TOP VIEW)
OE 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 V_CC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
SN54BCT374, SN74BCT374
OCTAL EDGE-TRIGGERED D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS019C – SEPTEMBER 1988 – REVISED MARCH 2003
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
SN54BCT374 . . . FK PACKAGE
(TOP VIEW)
2D
3 2 1 20 19
4
18
8D
2Q ₅
17 ^7D
3Q 6
16 7Q
3D 7
15 6Q
4D 8
14 6D
9 10 11 12 13
description/ordering information
These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively
low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional
bus drivers, and working registers.
The eight flip-flops of the ’BCT374 devices are edge-triggered D-type flip-flops. On the positive transition of the
clock (CLK) input, the Q outputs are set to the logic levels that were set up at the data (D) inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without
need for interface or pullup components. The output-enable (OE) input does not affect internal operations of
the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance
state.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74BCT374N
SN74BCT374N
0°C to 70°C
SOIC – DW
Tube
Tape and reel
SN74BCT374DW
SN74BCT374DWR
BCT374
SOP – NS
Tape and reel SN74BCT374NSR
BCT374
CDIP – J
Tube
SNJ54BCT374J
SNJ54BCT374J
–55°C to 125°C CFP – W
Tube
SNJ54BCT374W
SNJ54BCT374W
LCCC – FK
Tube
SNJ54BCT374FK
SNJ54BCT374FK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, 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.
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