[ /Title
(CD74
HC194,
CD74H
CT194)
/Subject
(HighSpeed
CMOS
Logic
4-Bit
CD54HC194, CD74HC194,
CD74HCT194
Data sheet acquired from Harris Semiconductor
SCHS164G
September 1997 - Revised May 2006
High-Speed CMOS Logic
4-Bit Bidirectional Universal Shift Register
Features
Description
• Four Operating Modes
- Shift Right, Shift Left, Hold and Reset
• Synchronous Parallel or Serial Operation
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
The ’HC194 and CD74HCT194 are 4-bit shift registers with
Asynchronous Master Reset (MR). In the parallel mode (S0
and S1 are high), data is loaded into the associated flip-flop
and appears at the output after the positive transition of the
clock input (CP). During parallel loading serial data flow is
inhibited. Shift left and shift right are accomplished
synchronously on the positive clock edge with serial data
entered at the shift left (DSL) serial input for the shift left
mode, and at the shift right (DSR) serial input for the shift
right mode. Clearing the register is accomplished by a Low
applied to the Master Reset (MR) pin.
• Wide Operating Temperature Range . . . -55oC to 125oC
Ordering Information
• Typical fMAX = 60MHz at VCC = 5V, CL = 15pF,
TA = 25oC
• Asynchronous Master Reset
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
PART NUMBER
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
Pinout
CD54HC194 (CERDIP)
CD74HC194 (PDIP, SOIC, SOP, TSSOP)
CD74HCT194 (PDIP)
TOP VIEW
MR 1
TEMP. RANGE
(oC)
CD54HC194F3A
-55 to 125
16 Ld CERDIP
CD74HC194E
-55 to 125
16 Ld PDIP
CD74HC194M
-55 to 125
16 Ld SOIC
CD74HC194MT
-55 to 125
16 Ld SOIC
CD74HC194M96
-55 to 125
16 Ld SOIC
CD74HC194NSR
-55 to 125
16 Ld SOP
CD74HC194PW
-55 to 125
16 Ld TSSOP
CD74HC194PWR
-55 to 125
16 Ld TSSOP
CD74HC194PWT
-55 to 125
16 Ld TSSOP
CD74HCT194E
-55 to 125
16 Ld PDIP
NOTE: When ordering, use the entire part number. The suffixes 96
and R denote tape and reel. The suffix T denotes a small-quantity
reel of 250.
16 VCC
DSR 2
15 Q0
D0 3
14 Q1
D1 4
13 Q2
D2 5
12 Q3
D3 6
11 CP
DSL 7
10 S1
GND 8
9 S0
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© 2006, Texas Instruments Incorporated
PACKAGE
1
CD54HC194, CD74HC194, CD74HCT194
Functional Diagram
D0
D1
D2
D3
DSL
3
15
4
14
5
13
6
12
2
7
9
10
1
DSR
11
Q0
Q1
Q2
Q3
GND = 8
VCC = 16
S0
S1
MR
CP
TRUTH TABLE
INPUTS
OPERATING
MODE
OUTPUT
CP
MR
S1
S0
DSR
DSL
Dn
Q0
Q1
Q2
Q3
Reset (Clear)
X
L
X
X
X
X
X
L
L
L
L
Hold (Do Nothing)
X
H
l
l
X
X
X
q0
q1
q2
q3
Shift Left
↑
H
h
l
X
l
X
q1
q2
q3
L
↑
H
h
l
X
h
X
q1
q2
q3
H
↑
H
l
h
l
X
X
L
q0
q1
q2
↑
H
l
h
h
X
X
H
q0
q1
q2
↑
H
h
h
X
X
dn
d0
d1
d2
d3
Shift Right
Parallel Load
H = High Voltage Level,
h = High Voltage Level One Set-up Time Prior To The Low to High Clock Transition,
L = Low Voltage Level,
l = Low Voltage Level One Set-up Time Prior to the Low to High Clock Transition,
dn (qn) = Lower Case Letters Indicate the State of the Referenced Input (or output) One Set-up Time Prior to the Low To High Clock
Transition,
X = Don’t Care,
↑ = Transition from Low to High Level
2
CD54HC194, CD74HC194, CD74HCT194
Absolute Maximum Ratings
Thermal Information
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
DC Input Diode Current, IIK
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, IOK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Source or Sink Current per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA
DC VCC or Ground Current, ICC or IGND . . . . . . . . . . . . . . . . . .±50mA
Package Thermal Impedance, θJA (see Note 2):
E (PDIP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67oC/W
M (SOIC) Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73oC/W
NS (SOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64oC/W
PW (TSSOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . 108oC/W
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
Supply Voltage Range, VCC
HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V
HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC
Input Rise and Fall Time
2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max)
4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max)
6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
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.
NOTE:
1. The package thermal impedance is calculated in accordance with JESD 51-7.
DC Electrical Specifications
TEST
CONDITIONS
PARAMETER
SYMBOL
VI (V)
VIH
-
25oC
IO (mA) VCC (V)
-40oC TO 85oC
-55oC TO 125oC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNITS
2
1.5
-
-
1.5
-
1.5
-
V
4.5
3.15
-
-
3.15
-
3.15
-
V
6
4.2
-
-
4.2
-
4.2
-
V
2
-
-
0.5
-
0.5
-
0.5
V
4.5
-
-
1.35
-
1.35
-
1.35
V
6
-
-
1.8
-
1.8
-
1.8
V
-0.02
2
1.9
-
-
1.9
-
1.9
-
V
-0.02
4.5
4.4
-
-
4.4
-
4.4
-
V
-0.02
6
5.9
-
-
5.9
-
5.9
-
V
-4
4.5
3.98
-
-
3.84
-
3.7
-
V
-5.2
6
5.48
-
-
5.34
-
5.2
-
V
0.02
2
-
-
0.1
-
0.1
-
0.1
V
0.02
4.5
-
-
0.1
-
0.1
-
0.1
V
0.02
6
-
-
0.1
-
0.1
-
0.1
V
4
4.5
-
-
0.26
-
0.33
-
0.4
V
5.2
6
-
-
0.26
-
0.33
-
0.4
V
HC TYPES
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
CMOS Loads
VIL
VOH
-
VIH or
VIL
High Level Output
Voltage
TTL Loads
Low Level Output
Voltage
CMOS Loads
Low Level Output
Voltage
TTL Loads
VOL
VIH or
VIL
-
-
3
CD54HC194, CD74HC194, CD74HCT194
DC Electrical Specifications
(Continued)
TEST
CONDITIONS
SYMBOL
VI (V)
II
VCC or
GND
-
ICC
VCC or
GND
High Level Input
Voltage
VIH
Low Level Input
Voltage
High Level Output
Voltage
CMOS Loads
PARAMETER
Input Leakage
Current
Quiescent Device
Current
25oC
IO (mA) VCC (V)
-40oC TO 85oC
-55oC TO 125oC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNITS
6
-
-
±0.1
-
±1
-
±1
µA
0
6
-
-
8
-
80
-
160
µA
-
-
4.5 to
5.5
2
-
-
2
-
2
-
V
VIL
-
-
4.5 to
5.5
-
-
0.8
-
0.8
-
0.8
V
VOH
VIH or
VIL
-0.02
4.5
4.4
-
-
4.4
-
4.4
-
V
-4
4.5
3.98
-
-
3.84
-
3.7
-
V
0.02
4.5
-
-
0.1
-
0.1
-
0.1
V
4
4.5
-
-
0.26
-
0.33
-
0.4
V
HCT TYPES
High Level Output
Voltage
TTL Loads
Low Level Output
Voltage
CMOS Loads
VOL
VIH or
VIL
Low Level Output
Voltage
TTL Loads
Input Leakage
Current
Quiescent Device
Current
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
II
VCC to
GND
0
5.5
-
-
±0.1
-
±1
-
±1
µA
ICC
VCC or
GND
0
5.5
-
-
8
-
80
-
160
µA
∆ICC
(Note 3)
VCC
-2.1
-
4.5 to
5.5
-
100
360
-
450
-
490
µA
NOTE:
2. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA.
HCT Input Loading Table
INPUT
UNIT LOADS
CP
0.6
MR
0.55
DSL, DSR, Dn
0.25
Sn
1.10
NOTE: Unit Load is ∆ICC limit specified in DC Electrical
Specifications table, e.g. 360µA max at 25oC.
4
CD54HC194, CD74HC194, CD74HCT194
Prerequisite For Switching Function
25oC
PARAMETER
SYMBOL
TEST
CONDITIONS VCC (V)
-40oC TO 85oC -55oC TO 125oC
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
2
6
-
5
-
4
-
MHz
4.5
30
-
24
-
20
-
MHz
6
35
-
28
-
23
-
MHz
2
80
-
100
-
120
-
ns
4.5
16
-
20
-
24
-
ns
6
14
-
17
-
20
-
ns
2
80
-
100
-
120
-
ns
4.5
16
-
20
-
24
-
ns
6
14
-
17
-
20
-
ns
2
70
-
90
-
105
-
ns
4.5
14
-
18
-
21
-
ns
6
12
-
15
-
19
-
ns
2
60
-
75
-
90
-
ns
4.5
12
-
15
-
18
-
ns
6
10
-
13
-
15
-
ns
2
80
-
100
-
120
-
ns
4.5
16
-
20
-
24
-
ns
6
14
-
17
-
20
-
ns
2
70
-
90
-
105
-
ns
4.5
14
-
18
-
21
-
ns
6
12
-
15
-
18
-
ns
2
0
-
0
-
0
-
ns
4.5
0
-
0
-
0
-
ns
6
0
-
0
-
0
-
ns
2
0
-
0
-
0
-
ns
4.5
0
-
0
-
0
-
ns
6
0
-
0
-
0
-
ns
HC TYPES
Max. Clock Frequency
(Figure 1)
MR Pulse Width
(Figure 2)
Clock Pulse Width
(Figure 1)
Set-up Time
Data to Clock (Figure 3)
Removal Time,
MR to Clock (Figure 2)
Set-Up Time
S1, S0 to Clock (Figure 4)
Set-up Time
DSL, DSR to Clock (Figure 4)
Hold Time
S1, S0 to Clock (Figure 4)
Hold Time
Data to Clock (Figure 3)
fMAX
tW
tW
tSU
tREM
tSU
tSU
tH
tH
-
-
-
-
-
-
-
-
-
HCT TYPES
Max. Clock Frequency (Figure 1)
fMAX
-
4.5
27
-
22
-
18
-
MHz
MR Pulse Width (Figure 2)
tW
-
4.5
16
-
20
-
24
-
ns
Clock Pulse Width (Figure 1)
tW
-
4.5
16
-
20
-
24
-
ns
Set-up Time, Data to Clock
(Figure 3)
tSU
-
4.5
14
-
18
-
21
-
ns
Removal Time MR to Clock
(Figure 2)
tREM
-
4.5
12
-
15
-
18
-
ns
5
Prerequisite For Switching Function
(Continued)
25oC
PARAMETER
SYMBOL
TEST
CONDITIONS VCC (V)
-40oC TO 85oC -55oC TO 125oC
MIN
MAX
MIN
MAX
MIN
MAX
UNITS
Set-up Time
S1, S0 to Clock (Figure 4)
tSU
-
4.5
20
-
25
-
30
-
ns
Set-up Time
DSL, DSR to Clock (Figure 4)
tSU
-
4.5
14
-
18
-
21
-
ns
Hold Time
S1, S0 to Clock (Figure 4)
tH
-
4.5
0
-
0
-
0
-
ns
Hold Time
Data to Clock (Figure 3)
tH
-
4.5
0
-
0
-
0
-
ns
Switching Specifications
PARAMETER
HC TYPES
Propagation Delay,
Clock to Output (Figure 1)
Input tr, tf = 6ns
SYMBOL
TEST
CONDITIONS
tPLH, tPHL
CL = 50pF
Propagation Delay,
Clock to Q
tPLH, tPHL
Output Transition Time
(Figure 1)
tTLH, tTHL
Propagation Delay,
MR to Output (Figure 2)
tPHL
Input Capacitance
CL = 50pF
CL = 50pF
25oC
-40oC TO 85oC -55oC TO 125oC
VCC
(V)
TYP
MAX
MAX
MAX
UNITS
2
-
175
220
265
ns
4.5
-
35
44
53
ns
6
-
30
37
45
ns
5
14
-
-
-
ns
2
-
75
95
110
ns
4.5
-
15
19
22
ns
6
-
13
16
19
ns
2
-
140
175
210
ns
4.5
-
28
35
42
ns
6
-
24
30
36
ns
CIN
-
-
-
10
10
10
pF
Maximum Clock Frequency
fMAX
-
5
60
-
-
-
MHz
Power Dissipation
Capacitance (Notes 4, 5)
CPD
-
5
55
-
-
-
pF
4.5
-
37
46
56
ns
5
15
-
-
-
ns
HCT TYPES
Propagation Delay,
Clock to Output (Figure 1)
tPLH, tPHL
CL = 50pF
Propagation Delay,
Clock to Q
tPLH, tPHL
Output Transition Times
(Figure 1)
tTLH, tTHL
CL = 50pF
4.5
-
15
19
22
ns
Propagation Delay,
MR to Output (Figure 2)
tPHL
CL = 50pF
4.5
-
40
50
60
ns
Input Capacitance
CIN
-
-
-
10
10
10
pF
Maximum Clock Frequency
fMAX
-
5
50
-
-
-
MHz
Power Dissipation
Capacitance (Notes 4, 5)
CPD
-
5
60
-
-
-
pF
-
NOTES:
3. CPD is used to determine the dynamic power consumption, per gate.
4. PD = VCC2 fi + ∑ (CL VCC2) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
6
Test Circuits and Waveforms
tr
INPUT LEVEL
CP
10%
tf
90%
VS
VS
10%
MR
VS
INPUT LEVEL
VS
GND
tW
tW
tPLH
tPHL
90%
VS
10%
tTLH
VS
tTHL
tPHL
VALID
S OR DS
CP
VS
INPUT LEVEL
VS
GND
tH
GND
FIGURE 2. MASTER RESET PREREQUISITE TIMES AND
PROPAGATION DELAYS
INPUT LEVEL
tSU
INPUT LEVEL
VS
VALID
VS
tREM
Q
FIGURE 1. CLOCK PREREQUISITE TIMES AND
PROPAGATION AND OUTPUT TRANSITION TIMES
DATA
GND
VS
CP
Q
VS
tSU
INPUT LEVEL
CP
GND
FIGURE 3. DATA PREREQUISITE TIMES
tH
VS
GND
INPUT LEVEL
GND
FIGURE 4. PARALLEL LOAD OR SHIFT-LEFT/SHIFT-RIGHT
PREREQUISITE TIMES
7
PACKAGE OPTION ADDENDUM
www.ti.com
4-Feb-2021
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
5962-8682601EA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8682601EA
CD54HC194F3A
CD54HC194F3A
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8682601EA
CD54HC194F3A
CD74HC194E
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
-55 to 125
CD74HC194E
CD74HC194M
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-55 to 125
HC194M
CD74HC194M96
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-55 to 125
HC194M
CD74HC194PW
ACTIVE
TSSOP
PW
16
90
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-55 to 125
HJ194
CD74HC194PWR
ACTIVE
TSSOP
PW
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-55 to 125
HJ194
CD74HC194PWT
ACTIVE
TSSOP
PW
16
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-55 to 125
HJ194
CD74HCT194E
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
-55 to 125
CD74HCT194E
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of