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SNJ4HCT377FK Datasheet Preview

SNJ4HCT377FK Datasheet

OCTAL D-TYPE FLIP-FLOPS

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D Operating Voltage Range of 4.5 V to 5.5 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 12 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
SN54HCT377 . . . J OR W PACKAGE
SN74HCT377 . . . DW OR N PACKAGE
(TOP VIEW)
SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067D – NOVEMBER 1988 – REVISED MARCH 2003
D Contain Eight Flip-Flops With Single-Rail
Outputs
D Clock Enable Latched to Avoid False
Clocking
D Applications Include:
– Buffer/Storage Registers
– Shift Registers
– Pattern Generators
SN54HCT377 . . . FK PACKAGE
(TOP VIEW)
CLKEN 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 VCC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
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 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
Tape and reel
SN74HCT377DW
SN74HCT377DWR
HCT377
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.
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2003, Texas Instruments Incorporated
1




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SNJ4HCT377FK Datasheet Preview

SNJ4HCT377FK Datasheet

OCTAL D-TYPE FLIP-FLOPS

No Preview Available !

SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067D NOVEMBER 1988 REVISED MARCH 2003
FUNCTION TABLE
(each flip-flop)
INPUTS
CLKEN CLK D
OUTPUT
Q
H
X
X
Q0
L
H
H
L
L
L
X
L
X
Q0
logic diagram (positive logic)
CLKEN 1
CLK 11
3
1D
4
2D
7
3D
8
4D
13
5D
14
6D
17
7D
18
8D
C1
1D
C1
1D
C1
1D
C1
1D
C1
1D
C1
1D
C1
1D
C1
1D
2
1Q
5
2Q
6
3Q
9
4Q
12
5Q
15
6Q
16
7Q
19
8Q
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SNJ4HCT377FK
Description OCTAL D-TYPE FLIP-FLOPS
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