參數(shù)資料
型號(hào)： SNJ54HCT374W
廠商： Texas Instruments, Inc.
元件分類： 通用總線功能
英文描述： OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
中文描述： 八路邊沿觸發(fā)的D型倒裝3觸發(fā)器態(tài)輸出
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 537K
代理商： SNJ54HCT374W
SCLS005D MARCH 1984 REVISED AUGUST 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Voltage Range of 4.5 V to 5.5 V
High-Current 3-State True Outputs Can
Drive Up To 15 LSTTL Loads
Low Power Consumption, 80-
μ
A Max I
CC
Typical t
pd
= 22 ns
±
6-mA Output Drive at 5 V
Low Input Current of 1
μ
A Max
Inputs Are TTL-Voltage Compatible
Eight D-Type Flip-Flops in a Single Package
Full Parallel Access for Loading
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 ’HCT374 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.
An output-enable (OE) input places the eight
outputs in either a normal logic state (high or low
logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the
bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines
without interface or pullup components.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube of 20
SN74HCT374N
SN74HCT374N
SOIC DW
Tube of 25
SN74HCT374DW
HCT374
Reel of 2000
SN74HCT374DWR
40
C to 85
C
°
°
SOP NS
Reel of 2000
SN74HCT374NSR
HCT374
SSOP DB
Reel of 2000
SN74HCT374DBR
HT374
Tube of 70
SN74HCT374PW
TSSOP PW
Reel of 2000
SN74HCT374PWR
HT374
Reel of 250
SN74HCT374PWT
CDIP J
Tube of 20
SNJ54HCT374J
SNJ54HCT374J
55 C to 125 C
CFP W
Tube of 85
SNJ54HCT374W
SNJ54HCT374W
LCCC FK
Tube of 55
SNJ54HCT374FK
SNJ54HCT374FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
8D
7D
7Q
6Q
6D
2D
2Q
3Q
3D
4D
1
1
O
5
5
V
8
4
G
C
SN54HCT374 . . . FK PACKAGE
(TOP VIEW)
SN54HCT374 . . . J OR W PACKAGE
SN74HCT374 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
Copyright
2003, Texas Instruments Incorporated
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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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