CD54HC165, CD74HC165,
CD54HCT165, CD74HCT165
Data sheet acquired from Harris Semiconductor
SCHS156C
February 1998 - Revised October 2003
High-Speed CMOS Logic
8-Bit Parallel-In/Serial-Out Shift Register
Description
The 鈥橦C165 and 鈥橦CT165 are 8-bit parallel or serial-in shift
registers with complementary serial outputs (Q
7
and Q
7
)
available from the last stage. When the parallel load (PL)
input is LOW, parallel data from the D0 to D7 inputs are
loaded into the register asynchronously. When the PL is
HIGH, data enters the register serially at the DS input and
shifts one place to the right (Q
0
鈫扱
1
鈫扱
2
, etc.) with each
positive-going clock transition. This feature allows parallel-
to-serial converter expansion by typing the Q
7
output to the
DS input of the succeeding device.
For predictable operation the LOW-to-HIGH transition of CE
should only take place while CP is HIGH. Also, CP an d CE
should be LOW before the LOW-to-HIGH transition of PL to
prevent shifting the data when PL goes HIGH.
Features
鈥?Buffered Inputs
[ /Title
(CD74H
C165,
CD74H
CT165)
/Subject
(High
Speed
CMOS
Logic 8-
Bit Par-
allel-
鈥?Asynchronous Parallel Load
鈥?Complementary Outputs
鈥?Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
鈥?Wide Operating Temperature Range . . . -55
o
C to 125
o
C
鈥?Balanced Propagation Delay and Transition Times
鈥?Signi鏗乧ant Power Reduction Compared to LSTTL
Logic ICs
鈥?HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30% of V
CC
at V
CC
= 5V
鈥?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
鈮?/div>
1碌A(chǔ) at V
OL
, V
OH
Ordering Information
PART NUMBER
CD54HC165F3A
CD54HCT165F3A
CD74HC165E
TEMP. RANGE
(
o
C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
16 Ld CERDIP
16 Ld CERDIP
16 Ld PDIP
16 Ld SOIC
16 Ld SOIC
16 Ld SOIC
16 Ld PDIP
16 Ld SOIC
16 Ld SOIC
16 Ld SOIC
Pinout
CD54HC165, CD54HCT165
(CERDIP)
CD74HC165, CD74HCT165
(PDIP, SOIC)
TOP VIEW
PL 1
CP 2
D4 3
D5 4
D6 5
D7 6
Q
7
7
GND 8
16 V
CC
15 CE
14 D3
13 D2
12 D1
11 D0
10 DS
9 Q
7
CD74HC165M
CD74HC165MT
CD54HC165M96
CD74HCT165E
CD74HCT165M
CD74HCT165MT
CD54HCT165M96
NOTE: When ordering, use the entire part number. The suf鏗亁 96
denotes tape and reel. The suf鏗亁 T denotes a small-quantity reel of
250.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
漏
2003, Texas Instruments Incorporated
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