• SCR-Latchup-Resistant CMOS Process and Circuit
Design
• Speed of Bipolar FAST™/AS/S with Significantly
Reduced Power Consumption
• Balanced Propagation Delays
• AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
• ±24mA Output Drive Current
- Fanout to 15 FAST™ ICs
- Drives 50Ω Transmission Lines
= 5V, TA = 25oC, CL = 50pF
CC
Pinout
DS1
DS2
GND
8-Bit Serial-In/Parallel-Out Shift Register
Description
The ’AC164 and ’ACT164 are 8-bit serial-in/parallel-out shift
registers with asynchronous reset that utilize Advanced
CMOS Logic technology. Data is shifted on the positive edge
of the clock (CP). A LOW on the Master Reset (
resets the shift register and all outputs go to the LOW state
regardless of the input conditions. Two Serial Data inputs
(DS1 and DS2) are provided; either one can be used as a
Data Enable control.
Ordering Information
PART
NUMBER
CD54AC164F3A-55 to 12514 Ld CERDIP
CD74AC164E-55 to 12514 Ld PDIP
CD74AC164M-55 to 12514 Ld SOIC
CD54ACT164F3A-55 to 12514 Ld CERDIP
CD74ACT164E-55 to 12514 Ld PDIP
CD74ACT164M-55 to 12514 Ld SOIC
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Waferanddief orthispart number is availablewhich meets all electrical specifications.Please contact your local TI sales office or customer service for ordering information.
CD54AC164, CD54ACT164
(CERDIP)
CD74AC164, CD74ACT164
(PDIP, SOIC)
TOP VIEW
Q0
Q1
Q2
Q3
1
2
3
4
5
6
7
14
V
Q7
13
12
Q6
11
Q5
10
Q4
MR
9
8
CP
MR) pin
TEMP.
RANGE (oC)PACKAGE
CC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST™ is a Trademark of Fairchild Semiconductor.
H = HIGH voltage level steady state.
L = LOW voltage level steady state.
h = HIGH voltage level one setup time prior to the LOW-to_HIGH clock transition.
l = LOW voltage level one setup time prior to the LOW-to-HIGH clock transition.
X = Don’t care.
q = Lowercase letters indicate the state of the referenced output prior to the LOW-to-HIGH clock transition.
↑ = LOW-to-HIGH clock transition.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3. For up to 4 outputs per device, add ±25mA for each additional output.
4. Unless otherwise specified, all voltages are referenced to ground.
5. θJA is measured with the component mounted on an evaluation PC board in free air.
AdditionalSupply Currentper
Input Pin TTL Inputs High
I
CC
VCC or
GND
∆I
CC
V
CC
-2.1
05.5-8-80-160µA
-4.5 to
-2.4-2.8-3mA
5.5
1 Unit Load
NOTES:
6. Test one output at a time for a 1-second maximum duration. Measurement is made by forcing current and measuring voltage to minimize
power dissipation.
7. Test verifies a minimum 50Ω transmission-line-drive capability at 85
o
C, 75Ω at 125oC.
-40oC TO
85oC
-55oC TO
125oC
UNITSV
ACT Input Load Table
INPUTUNIT LOAD
DS1, DS20.5
MR0.74
CP0.71
NOTE: Unit load is ∆ICClimit specified in DC Electrical Specifications
Table, e.g., 2.4mA max at 25oC.
4
CD54/74AC164, CD54/74ACT164
Prerequisite For Switching Function
PARAMETERSYMBOLVCC (V)
AC TYPES
Max. Clock Frequencyf
MR Pulse Widtht
CP Pulse Widtht
Set-up Timet
Hold Timet
MR to CP Removal Timet
ACT TYPES
Max. Clock Frequencyf
MR Pulse Widtht
CP Pulse Widtht
Set-up Timet
Hold Timet
MR to CP Removal Timet
-40oC TO 85oC-55oC TO 125oC
UNITSMINTYPMAXMINTYPMAX
DS2 (1)
DS1 (2)
CP
CP
ANY
OUTPUT
90%
10%
90%
10%
t
r
t
w
1/f
t
PLHtPHL
t
TLHtTHL
MAX
t
f
INPUT
V
S
GND
V
S
MR
ANY
INPUT
CP
t
PHL
V
S
FIGURE 1.FIGURE 2.
V
S
t
SU
t
SU
VALID
V
S
t
H
V
S
t
H
t
REC
INPUT
LEVEL
GND
INPUT
LEVEL
GND
INPUT
LEVEL
GND
DS2 (1)
CP
V
S
t
SU
V
S
t
REC
t
w
V
S
t
H
V
S
INPUT LEVEL
GND
INPUT LEVEL
GND
INPUT LEVEL
GND
INPUT LEVEL
GND
FIGURE 3.FIGURE 4.
6
DUT
OUTPUT
R
L
CD54/74AC164, CD54/74ACT164
(NOTE)
500Ω
OUTPUT
LOAD
C
L
50pF
NOTE: For AC Series Only: When VCC = 1.5V, RL = 1kΩ.
ACACT
Input LevelV
Input Switching Voltage, V
Output Switching Voltage, V
S
S
0.5 V
0.5 V
CC
CC
CC
FIGURE 5. PROPAGATION DELAY TIMES
3V
1.5V
0.5 V
CC
7
IMPORTANT NOTICE
T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 2000, Texas Instruments Incorporated
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