SN74F378 Datasheet, PDF (1/7 Pages) Texas Instruments – HEX D-TYPE FLIP-FLOP WITH CLOCK ENABLE

• Contains Six D-Type Flip-Flops
With Single-Rail Outputs
• Applications Include:
Buffer/Storage Registers
Shift Registers
Pattern Generators
• Buffered Common Enable Input
• Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs
SN74F378
HEX DĆTYPE FLIPĆFLOP
WITH CLOCK ENABLE
SDFS030B − D2932, MARCH 1987 − REVISED OCTOBER 1993
D OR N PACKAGE
(TOP VIEW)
CLKEN 1
1Q 2
1D 3
2D 4
2Q 5
3D 6
3Q 7
GND 8
16 V_CC
15 6Q
14 6D
13 5D
12 5Q
11 4D
10 4Q
9 CLK
description
The SN74F378 is a positive-edge-triggered D-type flip-flop with a clock enable (CLKEN) input. The SN74F378
is similar to the SN74F174 but features a common clock enable 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 pulse if CLKEN is low. Clock triggering occurs at a particular voltage level and
is not directly related to the positive-going pulse. When the clock (CLK) input is at either the high or low level,
the D-input signal has no effect at the output.
The SN74F378 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
CLKEN CLK D
H
X
X
L
↑
H
L
↑
L
X
L
X
OUTPUT
Q
Q0
H
L
Q0
logic symbol^†
1
CLKEN
9
CLK
3
1D
4
2D
6
3D
11
4D
13
5D
14
6D
G1
1C2
2D
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
2
1Q
5
2Q
7
3Q
10
4Q
12
5Q
15
6Q
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.
Copyright  1993, Texas Instruments Incorporated
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