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D-TYPE FLIP-FLOPS. SN74HCT377N Datasheet

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D-TYPE FLIP-FLOPS. SN74HCT377N Datasheet
















SN74HCT377N FLIP-FLOPS. Datasheet pdf. Equivalent













Part

SN74HCT377N

Description

OCTAL D-TYPE FLIP-FLOPS



Feature


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 M ax ICC D Typical tpd = 12 ns D ±4-mA O utput Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage C ompatible SN54HCT377 . . . J OR W PACKA GE SN74HCT377 . . . DW OR N PACKAGE (TO P VIEW) SN54HCT377, SN74HCT377 OCTAL D -TYPE FLIP-FLOPS WITH.
Manufacture

Texas Instruments

Datasheet
Download SN74HCT377N Datasheet


Texas Instruments SN74HCT377N

SN74HCT377N; CLOCK ENABLE SCLS067D – NOVEMBER 1988 – REVISED MARCH 2003 D Contain Eight Flip-Flops With Single-Rail Outputs D Clock Enable Latched to Avoid False Clo cking D Applications Include: – Buffe r/Storage Registers – Shift Registers – Pattern Generators SN54HCT377 . . . FK PACKAGE (TOP VIEW) 1D 1Q CLKEN VC C 8Q CLKEN 1 1Q 2 1D 3 2D 4 2Q 5 3Q 6 3D 7 4D 8 4Q 9 GND 10 20 VC.


Texas Instruments SN74HCT377N

C 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 1 8 8D 2Q 5 17 7D 3Q 6 16 7Q 3D 7 15 6Q 4D 8 14 6D 9 10 11 12 13 4Q G ND CLK 5Q 5D description/ordering info rmation These devices are positive-edge -triggered D-type flip-flops. The ’HC T377 devices are similar to the ’HCT2 73 devices, but feature a latched clock -enable (CLKEN) input .


Texas Instruments SN74HCT377N

instead of a common clear. Information a t the data (D) inputs meeting the setup time requirements is transferred to th e Q outputs on the positive-going edge of the clock (CLK) pulse if CLKEN is lo w. Clock triggering occurs at a particu lar voltage level and is not directly r elated to the transition time of the po sitive-going pulse. When CLK is at eith er the high or low.





Part

SN74HCT377N

Description

OCTAL D-TYPE FLIP-FLOPS



Feature


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 M ax ICC D Typical tpd = 12 ns D ±4-mA O utput Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage C ompatible SN54HCT377 . . . J OR W PACKA GE SN74HCT377 . . . DW OR N PACKAGE (TO P VIEW) SN54HCT377, SN74HCT377 OCTAL D -TYPE FLIP-FLOPS WITH.
Manufacture

Texas Instruments

Datasheet
Download SN74HCT377N Datasheet




 SN74HCT377N
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




 SN74HCT377N
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




 SN74HCT377N
SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067D NOVEMBER 1988 REVISED MARCH 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Package thermal impedance, θJA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under absolute maximum ratingsmay cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditionsis not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
SN54HCT377
MIN NOM MAX
SN74HCT377
UNIT
MIN NOM MAX
VCC Supply voltage
4.5
5 5.5 4.5
5 5.5 V
VIH High-level input voltage
VCC = 4.5 V to 5.5 V
2
2
V
VIL
Low-level input voltage
VCC = 4.5 V to 5.5 V
0.8
0.8 V
VI
Input voltage
0
VCC
0
VCC V
VO
Output voltage
0
VCC
0
VCC V
tt
Input transition (rise and fall) times
500
500 ns
TA
Operating free-air temperature
55
125 40
85 °C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HCT377 SN74HCT377
MIN TYP MAX MIN MAX MIN MAX
VOH
VOL
II
ICC
ICC
Ci
VI = VIH or VIL
IOH = 20 µA
IOH = 4 mA
VI = VIH or VIL
IOL = 20 µA
IOL = 4 mA
VI = VCC or 0
VI = VCC or 0,
IO = 0
One input at 0.5 V or 2.4 V,
Other inputs at GND or VCC
4.5 V
4.5 V
4.5 V
4.5 V
5.5 V
5.5 V
5.5 V
4.5 V to
5.5 V
4.4 4.499
3.98 4.30
0.001
0.17
±0.1
0.1
0.26
±100
8
1.4 2.4
3
10
4.4
3.7
0.1
0.4
±1000
160
3
4.4
3.84
0.1
0.33
±1000
80
2.9
10*
10
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
UNIT
V
V
nA
µA
mA
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3




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