• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
= 0.8V (Max), VIH = 2V (Min)
IL
- CMOS Input Compatibility, I
= 60MHz at VCC = 5V, CL = 15pF,
MAX
= 30%, NIH = 30% of V
IL
≤ 1µA at VOL, V
l
o
C to 125oC
OH
Description
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.
Ordering Information
TEMP. RANGE
CC
PART NUMBER
CD54HC194F3A-55 to 12516 Ld CERDIP
CD74HC194E-55 to 12516 Ld PDIP
CD74HC194M-55 to 12516 Ld SOIC
CD74HC194MT-55 to 12516 Ld SOIC
CD74HC194M96-55 to 12516 Ld SOIC
CD74HC194NSR-55 to 12516 Ld SOP
CD74HC194PW-55 to 12516 Ld TSSOP
CD74HC194PWR-55 to 12516 Ld TSSOP
(oC)PACKAGE
Pinout
CD54HC194 (CERDIP)
CD74HC194 (PDIP, SOIC, SOP, TSSOP)
CD74HCT194 (PDIP)
TOP VIEW
V
1
MR
DSR
2
D
3
0
4
D
1
5
D
2
6
D
3
7
DSL
8
GND
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
CD74HC194PWT-55 to 12516 Ld TSSOP
CD74HCT194E-55 to 12516 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.
1
Page 2
Functional Diagram
CD54HC194, CD74HC194, CD74HCT194
D
D
D
D
DSL
DSR
S0
S1
MR
CP
3
0
4
1
5
2
6
3
29 10 1 11
7
15
Q
14
Q
13
Q
12
Q
GND = 8
VCC= 16
0
1
2
3
TRUTH TABLE
INPUTSOUTPUT
OPERATING
MODE
CPMRS1S0DSRDSLD
n
Q
Q
0
Q
1
Q
2
3
Reset (Clear)XLXXXXXLLLL
Hold (Do Nothing)XHllXXXq
0
Shift Left↑H hl XlXq1q
↑Hh lXhXq1q
Shift Right↑Hl hlXXLq0q
↑Hl hhXXHq0q
Parallel Load↑Hh hXXdnd
0
q
1
2
2
d
1
q
2
q
3
q
3
1
1
d
2
q
3
L
H
q
2
q
2
d
3
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
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.
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
CC
DC Electrical Specifications
PARAMETERSYMBOL
HC TYPES
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
CMOS Loads
High Level Output
Voltage
TTL Loads
Low Level Output
Voltage
CMOS Loads
V
IH
V
IL
V
OH
V
OL
TEST
CONDITIONS
25oC-40oC TO 85oC-55oC TO 125oC
VCC (V)
--21.5--1.5-1.5-V
4.53.15--3.15 -3.15-V
64.2--4.2-4.2-V
--2--0.5-0.5-0.5V
4.5--1.35-1.35-1.35V
6--1.8-1.8-1.8V
VIH or
V
-0.0221.9--1.9-1.9-V
IL
-0.024.54.4--4.4 -4.4-V
-0.0265.9--5.9-5.9-V
-44.53.98--3.84-3.7-V
-5.265.48--5.34-5.2-V
VIH or
V
0.022--0.1-0.1-0.1V
IL
0.024.5--0.1-0.1-0.1V
0.026--0.1-0.1-0.1V
UNITSVI(V)IO(mA)MINTYP MAXMINMAXMINMAX
Low Level Output
Voltage
TTL Loads
44.5--0.26-0.33-0.4V
5.26--0.26-0.33-0.4V
3
Page 4
CD54HC194, CD74HC194, CD74HCT194
DC Electrical Specifications (Continued)
TEST
CONDITIONS
25oC-40oC TO 85oC-55oC TO 125oC
PARAMETERSYMBOL
Input Leakage
Current
Quiescent Device
Current
HCT TYPES
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
CMOS Loads
High Level Output
Voltage
TTL Loads
Low Level Output
Voltage
CMOS Loads
Low Level Output
Voltage
TTL Loads
VCC (V)
I
VCC or
I
-6--±0.1-±1-±1µA
UNITSVI(V)IO(mA)MINTYP MAXMINMAXMINMAX
GND
I
CC
VCC or
06--8-80-160µA
GND
V
IH
--4.5 to
2-- 2 - 2 - V
5.5
V
IL
--4.5 to
--0.8-0.8-0.8V
5.5
V
OH
VIH or
V
IL
-0.024.54.4--4.4-4.4-V
-44.53.98--3.84-3.7-V
V
OL
VIH or
V
IL
0.024.5--0.1-0.1-0.1V
44.5--0.26-0.33-0.4V
Input Leakage
Current
Quiescent Device
Current
Additional Quiescent
Device Current Per
I
I
I
CC
∆I
CC
(Note 3)
VCC to
GND
VCC or
GND
V
CC
-2.1
05.5--±0.1-±1-±1µA
05.5--8-80-160µA
-4.5 to
-100360-450-490µA
5.5
Input Pin: 1 Unit Load
NOTE:
2. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA.
HCT Input Loading Table
INPUTUNIT LOADS
CP0.6
MR0.55
DSL, DSR, D
n
Sn1.10
NOTE: Unit Load is ∆ICClimit specified in DC Electrical
Specifications table, e.g. 360µA max at 25oC.
0.25
4
Page 5
CD54HC194, CD74HC194, CD74HCT194
Prerequisite For Switching Function
PARAMETERSYMBOL
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)
f
MAX
t
t
t
t
REM
W
W
SU
TEST
25oC-40oC TO 85oC -55oC TO 125oC
CONDITIONS VCC (V)
-26-5-4-MHz
4.530-24-20-MHz
635-28-23-MHz
-280-100-120-ns
4.516-20-24-ns
614-17-20-ns
-280-100-120-ns
4.516-20-24-ns
614-17-20-ns
-270-90-105-ns
4.514-18-21-ns
612-15-19-ns
-260-75-90-ns
4.512-15-18-ns
UNITSMINMAXMINMAXMINMAX
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)
HCT TYPES
Max. Clock Frequency (Figure 1)f
MR Pulse Width (Figure 2)t
Clock Pulse Width (Figure 1)t
Set-up Time, Data to Clock
(Figure 3)
t
SU
t
SU
t
H
t
H
MAX
W
W
t
SU
610-13-15-ns
-280-100-120-ns
4.516-20-24-ns
614-17-20-ns
-270-90-105-ns
4.514-18-21-ns
612-15-18-ns
-20-0-0-ns
4.50-0-0-ns
60-0-0-ns
-20-0-0-ns
4.50-0-0-ns
60-0-0-ns
-4.527-22-18-MHz
-4.516-20-24-ns
-4.516-20-24-ns
-4.514-18-21-ns
Removal Time MR to Clock
(Figure 2)
t
REM
-4.512-15-18-ns
5
Page 6
Prerequisite For Switching Function (Continued)
TEST
PARAMETERSYMBOL
Set-up Time
t
SU
CONDITIONS VCC (V)
-4.520-25-30-ns
S1, S0 to Clock (Figure 4)
Set-up Time
t
SU
-4.514-18-21-ns
DSL, DSR to Clock (Figure 4)
Hold Time
t
H
- 4.50-0-0-ns
S1, S0 to Clock (Figure 4)
Hold Time
t
H
- 4.50-0-0-ns
Data to Clock (Figure 3)
Switching Specifications Input t
PARAMETERSYMBOL
, tf = 6ns
r
CONDITIONS
TEST
V
CC
(V)
HC TYPES
Propagation Delay,
Clock to Output (Figure 1)
t
PLH
, t
PHLCL
= 50pF2-175220265ns
4.5-354453ns
6-303745ns
Propagation Delay,
t
PLH
, t
PHL
-514---ns
Clock to Q
Output Transition Time
(Figure 1)
t
TLH
, t
THLCL
= 50pF2-7595110ns
4.5-151922ns
6-131619ns
Propagation Delay,
MR to Output (Figure 2)
t
PHL
CL= 50pF2-140175210ns
4.5-283542ns
6-243036ns
Input CapacitanceC
Maximum Clock Frequencyf
Power Dissipation
MAX
C
IN
PD
---101010pF
-560---MHz
-555---pF
Capacitance (Notes 4, 5)
HCT TYPES
Propagation Delay,
t
PLH
, t
PHLCL
= 50pF4.5-374656ns
Clock to Output (Figure 1)
Propagation Delay,
t
PLH
, t
PHL
-515---ns
Clock to Q
Output Transition Times
t
TLH
, t
THLCL
= 50pF4.5-151922ns
(Figure 1)
Propagation Delay,
t
PHL
CL= 50pF4.5-405060ns
MR to Output (Figure 2)
Input CapacitanceC
Maximum Clock Frequencyf
Power Dissipation
MAX
C
IN
PD
---101010pF
-550---MHz
-560---pF
Capacitance (Notes 4, 5)
NOTES:
3. CPD is used to determine the dynamic power consumption, per gate.
4. PD = V
2
fi + ∑ (CL V
CC
2
) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
CC
25oC-40oC TO 85oC -55oC TO 125oC
UNITSMINMAXMINMAXMINMAX
25oC-40oC TO 85oC -55oC TO 125oC
UNITSTYPMAXMAXMAX
6
Page 7
Test Circuits and Waveforms
I
D
NPUT LEVEL
CP
10%
90%
V
S
t
t
PHL
r
t
W
V
t
S
10%
f
V
Q
V
S
t
THL
FIGURE 1. CLOCK PREREQUISITE TIMES AND
PROPAGATION AND OUTPUT TRANSITION TIMES
VALID
DAT A
CP
V
S
t
SU
t
H
V
S
INPUT LEVEL
GND
INPUT LEVEL
GND
FIGURE 3. DATA PREREQUISITE TIMESFIGURE 4. PARALLELLOADOR SHIFT-LEFT/SHIFT-RIGHT
S
GN
t
PLH
90%
V
S
10%
t
TLH
MR
CP
V
t
PHL
Q
V
S
t
S
W
t
REM
V
S
V
S
INPUT LEVEL
GND
INPUT LEVEL
GND
FIGURE 2. MASTER RESET PREREQUISITE TIMES AND
PROPAGATION DELAYS
VALID
S OR DS
CP
V
S
t
SU
t
H
V
S
INPUT LEVEL
GND
INPUT LEVEL
GND
PREREQUISITE TIMES
7
Page 8
PACKAGE OPTION ADDENDUM
www.ti.com
PACKAGING INFORMATION
Orderable DeviceStatus
5962-8682601EAACTIVECDIPJ161TBDA42N / A for Pkg Type-55 to 1255962-8682601EA
CD54HC194F3AACTIVECDIPJ161TBDA42N / A for Pkg Type-55 to 1255962-8682601EA
CD74HC194EACTIVEPDIPN1625Pb-Free
CD74HC194MACTIVESOICD1640Green (RoHS
CD74HC194M96ACTIVESOICD162500Green (RoHS
CD74HC194PWACTIVETSSOPPW1690Green (RoHS
CD74HC194PWG4ACTIVETSSOPPW1690Green (RoHS
CD74HC194PWRACTIVETSSOPPW162000Green (RoHS
CD74HC194PWTACTIVETSSOPPW16250Green (RoHS
CD74HCT194EACTIVEPDIPN1625Pb-Free
(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.
Package Type Package
(1)
Drawing
Pins Package
Qty
Eco Plan
(2)
(RoHS)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
(RoHS)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C)Device Marking
CD54HC194F3A
CD54HC194F3A
CU NIPDAUN / A for Pkg Type-55 to 125CD74HC194E
CU NIPDAULevel-1-260C-UNLIM-55 to 125HC194M
CU NIPDAULevel-1-260C-UNLIM-55 to 125HC194M
CU NIPDAULevel-1-260C-UNLIM-55 to 125HJ194
CU NIPDAULevel-1-260C-UNLIM-55 to 125HJ194
CU NIPDAULevel-1-260C-UNLIM-55 to 125HJ194
CU NIPDAULevel-1-260C-UNLIM-55 to 125HJ194
CU NIPDAUN / A for Pkg Type-55 to 125CD74HCT194E
(4/5)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
3-Sep-2015
Samples
Addendum-Page 1
Page 9
PACKAGE OPTION ADDENDUM
www.ti.com
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF CD54HC194, CD74HC194 :
Catalog: CD74HC194
•
Military: CD54HC194
•
3-Sep-2015
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Military - QML certified for Military and Defense Applications
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