TI CD74HC194 High-speed cmos logic 4-bit bidirectional universal shift register Datasheet

[ /Title
(CD74
HC194,
CD74H
CT194)
/Subject
(HighSpeed
CMOS
Logic
4-Bit
CD74HC194,
CD74HCT194
Data sheet acquired from Harris Semiconductor
SCHS164
High-Speed CMOS Logic
4-Bit Bidirectional Universal Shift Register
September 1997
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 Harris CD74HC194 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 right mode, and at the shift right (DSR) serial input for
the shift left 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
TEMP. RANGE (oC)
PKG.
NO.
PACKAGE
CD74HC194E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT194E
-55 to 125
16 Ld PDIP
E16.3
CD74HC194M
-55 to 125
16 Ld SOIC
M16.15
NOTES:
• 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
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Die for this part number is available which meets all electrical
specifications. Please contact your local sales office or Harris
customer service for ordering information.
Pinout
CD74HC194, CD74HCT194
(PDIP, SOIC)
TOP VIEW
16 VCC
MR 1
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
© Harris Corporation 1997
1
File Number
1668.1
CD74HC194, CD74HCT194
Functional Diagram
D0
D1
D2
D3
DSL
3
15
4
14
5
13
6
12
7
2
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 (Note 2)
l (Note 2)
X
X
X
q0
q1
q2
q3
Shift Left
↑
H
h
l (Note 2)
X
l
X
q1
q2
q3
L
↑
H
h
l (Note 2)
X
h
X
q1
q2
q3
H
↑
H
l (Note 2)
h
l
X
X
L
q0
q1
q2
↑
H
l (Note 2)
h
h
X
X
H
q0
q1
q2
↑
H
h
h
X
X
dn
d0
d1
q2
d3
Shift Right
Parallel Load
NOTES:
1. 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. The High to Low transition of the S0 and S1 Inputs on the CD74HC194, CD74HCT194 should only take place while CP is High for
Conventional Operation.
2
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
Thermal Resistance (Typical, Note 3)
θJA (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
190
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:
3. θJA is measured with the component mounted on an evaluation PC board in free air.
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
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
(Note 4)
II
VCC to
GND
0
5.5
-
-
±0.1
-
±1
-
±1
µA
ICC
VCC or
GND
0
5.5
-
-
8
-
80
-
160
µA
∆ICC
VCC
-2.1
-
4.5 to
5.5
-
100
360
-
450
-
490
µA
NOTE:
4. 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
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
CD74HC194, CD74HCT194
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 5, 6)
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 5, 6)
CPD
-
5
60
-
-
-
pF
-
NOTES:
5. CPD is used to determine the dynamic power consumption, per gate.
6. PD = VCC2 fi + ∑ (CL VCC2) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
6
CD74HC194, CD74HCT194
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 PRE-REQUISITE TIMES AND
PROPAGATION DELAYS
INPUT LEVEL
tSU
INPUT LEVEL
VS
VALID
VS
tREM
Q
FIGURE 1. CLOCK PRE-REQUISITE TIMES AND
PROPAGATION AND OUTPUT TRANSITION TIMES
DATA
GND
VS
CP
Q
VS
tSU
INPUT LEVEL
CP
GND
FIGURE 3. DATA PRE-REQUISITE TIMES
tH
VS
GND
INPUT LEVEL
GND
FIGURE 4. PARALLEL LOAD OR SHIFT-LEFT/SHIFT-RIGHT
PRE-REQUISITE TIMES
7
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