Datasheet

1
Data sheet acquired from Harris Semiconductor
SCHS184C
Features
• Buffered Common Clock
• Buffered Inputs
• Typical Propagation Delay at C
L
= 15pF,
V
CC
= 5V, T
A
= 25
o
C
- 14 ns (HC Types
- 16 ns (HCT Types)
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55
o
C to 125
o
C
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30%of V
CC
at
V
CC
= 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
≤ 1µA at V
OL
, V
OH
Description
The ’HC377 and ’HCT377 are octal D-type flip-flops with a
buffered clock (CP) common to all eight flip-flops. All the flip-
flops are loaded simultaneously on the positive edge of the
clock (CP) when the Data Enable (
E) is Low.
Pinout
CD54HC377, CD54HCT377
(CERDIP)
CD74HC377
(PDIP, SOIC, TSSOP)
CD74HCT377
(PDIP, SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C) PACKAGE
CD54HC377F3A -55 to 125 20 Ld CERDIP
CD54HCT377F3A -55 to 125 20 Ld CERDIP
CD74HC377E -55 to 125 20 Ld PDIP
CD74HC377M -55 to 125 20 Ld SOIC
CD74HC377M96 -55 to 125 20 Ld SOIC
CD74HC377PW -55 to 125 20 Ld TSSOP
CD74HC377PWR -55 to 125 20 Ld TSSOP
CD74HCT377E -55 to 125 20 Ld PDIP
CD74HCT377M -55 to 125 20 Ld SOIC
CD74HCT377M96 -55 to 125 20 Ld SOIC
NOTE: When ordering, use the entire part number. The suffixes
96 and R denote tape and reel.
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
E
Q
0
D
0
D
1
Q
1
Q
2
D
3
D
2
Q
3
GND
V
CC
D
7
D
6
Q
6
Q
7
Q
5
D
5
D
4
Q
4
CP
September 1997 - Revised February 2004
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© 2004, Texas Instruments Incorporated
CD54HC377, CD74HC377,
CD54HCT377, CD74HCT377
High-Speed CMOS Logic
Octal D-Type Flip-Flop With Data Enable
[
/Title
(
CD74
H
C377
,
C
D74
H
CT37
7
)
/
Sub-
j
ect
(
High
S
peed
C
MOS
L
ogic
O
ctal
D
-
T
ype
F
lip-