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參數(shù)資料
| 型號： | SNJ54HCT377FK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL D-TYPE FLIP-FLOPS WITH CLOCK ENABLE |
| 中文描述： | 八路D型倒裝與時鐘使觸發(fā)器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 273K |
| 代理商： | SNJ54HCT377FK |
SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067D – NOVEMBER 1988 – REVISED MARCH 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Voltage Range of 4.5 V to 5.5 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-
μ
A Max I
CC
Typical t
pd
= 12 ns
±
4-mA Output Drive at 5 V
Low Input Current of 1
μ
A Max
Inputs Are TTL-Voltage Compatible
Contain Eight Flip-Flops With Single-Rail
Outputs
Clock Enable Latched to Avoid False
Clocking
Applications Include:
– Buffer/Storage Registers
– Shift Registers
– Pattern Generators
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
C
5
5
V
8
4
G
C
SN54HCT377 . . . FK PACKAGE
(TOP VIEW)
SN54HCT377 . . . J OR W PACKAGE
SN74HCT377 . . . DW OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
CLKEN
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
description/ordering information
These devices are positive-edge-triggered D-type flip-flops. The ’HCT377 devices are similar to the ’HCT273
devices, but feature a latched clock-enable (CLKEN) input instead of a common clear.
Information at the data (D) inputs meeting the setup time requirements is transferred to the Q outputs on the
positive-going edge of the clock (CLK) pulse if CLKEN is low. Clock triggering occurs at a particular voltage level
and is not directly related to the transition time of the positive-going pulse. When CLK is at either the high or
low level, the D input has no effect at the output. These devices are designed to prevent false clocking by
transitions at CLKEN.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74HCT377N
SN74HCT377N
–40
°
C to 85
°
C
SOIC – DW
Tube
SN74HCT377DW
HCT377
Tape and reel
SN74HCT377DWR
CDIP – J
Tube
SNJ54HCT377J
SNJ54HCT377J
–55
°
C to 125
°
C
CFP – W
Tube
SNJ54HCT377W
SNJ54HCT377W
LCCC – FK
Tube
SNJ54HCT377FK
SNJ54HCT377FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2003, 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 processing does not necessarily include testing of all
parameters.
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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