STMICROELECTRONICS M74HC194B1R

M54HC194
M74HC194
4 BIT PIPO SHIFT REGISTER
.
.
.
.
.
.
.
.
HIGH SPEED
tPD = 12 ns (TYP.) AT VCC = 5 V
LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
IOH = IOL = 4 mA (MIN.)
BALANCED PROPAGATION DELAYS
tPLH = tPHL
HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS194
DESCRIPTION
The M54/74HC194 is a high speed CMOS 4 BIT PIPO
2
SHIFT REGISTER fabricated in silicon gate C MOS
technology. It has the same high speed performance
of LSTTL combined with true CMOS low power consumption. This SHIFT REGISTER is designed to incorporate virtually all of the features a system designer
may want in a shift register. It features parallel inputs,
parallel outputs, right shift and left shift serial inputs,
clear line. The register has four distinct modes of operation : PARALLEL (broadside) LOAD ; SHIFT RIGHT
(in the direction QA QD); SHIFT LEFT ; INHIBIT
CLOCK (do nothing). Synchronous parallel loading is
accomplished by applying the four data bits and taking
both mode control inputs, S0 and S1 high. The data
are loaded into their respective flip-flops and appear
at the outputs after the positive transition of the
CLOCK input. During loading, serial data flow is inhibited. Shift right is accomplished synchronously with
the rising edge of the clock pulse when S0 is high and
S1 is low. Serial data for this mode is entered at the
SHIFT RIGHT data input. When S0 is low and S1 is
high,data shifts left synchronously and new data is entered at the SHIFT LEFT serial input. Clocking of the
flipflops is inhibited when both mode control inputs are
low. The mode control inputs should be changed only
when the CLOCK input is high. All inputs are equipped
with protection circuits against static discharge and
transient excess voltage.
October 1992
B1R
(Plastic Package)
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HC194F1R
M74HC194M1R
M74HC194B1R
M74HC194C1R
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
1/12
M54/M74HC194
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
IEC LOGIC SYMBOL
PIN No
SYMBOL
1
CLEAR
2
SR
Serial Data Input (Shift
Right)
3, 4, 5, 6
7
A to D
SL
Parallel Data Input
Serial Data Input (Shift
Left)
Mode Control Inputs
9, 10
S0, S1
11
CLOCK
15, 14, 13, 12
8
QA to QD
GND
16
VCC
NAME AND FUNCTION
Asynchronous Reset
Input (Active LOW)
Clock Input (LOW to
HIGH Edge-triggered)
Paralle Outputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
CLEAR
L
MODE
S1
X
CLOCK
S0
X
X
OUTPUS
SERIAL
LEFT
X
PARALLEL
QA
QB
QC
QD
RIGHT
X
A
X
B
X
C
X
D
X
L
L
L
L
H
X
X
X
X
X
X
X
X
QA0
QB0
QC0
QD0
H
H
H
L
H
H
X
X
X
H
a
X
b
X
c
X
d
X
a
H
b
QAn
c
QBn
d
QCn
H
L
H
X
L
X
X
X
X
L
QAn
QBn
QCn
H
H
H
H
L
L
H
L
X
X
X
X
X
X
X
X
X
X
QBn
QBn
QCn
QCn
QDn
QDn
H
L
H
L
L
X
X
X
X
X
X
QA0
QB0
QC0
QD0
X: Don’t Care
a ~d
QA0 ~ QD0
QAn ~ QDn
2/12
X
: Don’t Care
: The level of steady state input voltage at input A ~ D respactively
: No change
: The level of QA, QB, QC, respectively, before the mst recent positive transition of the clock.
M54/M74HC194
LOGIC DIAGRAM
TIMING CHART
3/12
M54/M74HC194
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
VCC
VI
Supply Voltage
DC Input Voltage
-0.5 to +7
-0.5 to VCC + 0.5
V
V
VO
DC Output Voltage
-0.5 to VCC + 0.5
V
IIK
IOK
DC Input Diode Current
DC Output Diode Current
± 20
± 20
mA
mA
IO
DC Output Source Sink Current Per Output Pin
± 25
mA
DC VCC or Ground Current
± 50
mA
500 (*)
mW
ICC or IGND
Parameter
PD
Power Dissipation
Tstg
TL
Storage Temperature
Lead Temperature (10 sec)
-65 to +150
300
o
o
C
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Supply Voltage
VI
Input Voltage
VO
Top
Output Voltage
Operating Temperature: M54HC Series
M74HC Series
Input Rise and Fall Time
tr, tf
4/12
VCC = 2 V
Value
2 to 6
Unit
V
0 to VCC
V
0 to VCC
-55 to +125
-40 to +85
0 to 1000
V
C
o
C
ns
VCC = 4.5 V
0 to 500
VCC = 6 V
0 to 400
o
M54/M74HC194
DC SPECIFICATIONS
Test Conditions
Symbol
VIH
V IL
Parameter
High Level Input
Voltage
Low Level Input
Voltage
Value
VCC
(V)
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
2.0
1.5
1.5
1.5
4.5
6.0
3.15
4.2
3.15
4.2
3.15
4.2
High Level
Output Voltage
0.5
0.5
0.5
4.5
1.35
1.35
1.35
2.0
4.5
6.0
4.5
VOL
Low Level Output
Voltage
6.0
2.0
4.5
6.0
4.5
6.0
II
ICC
Input Leakage
Current
Quiescent Supply
Current
6.0
6.0
1.8
1.8
Unit
V
2.0
6.0
V OH
-40 to 85 oC -55 to 125 oC
74HC
54HC
Min. Max. Min. Max.
V
1.8
1.9
2.0
1.9
1.9
VI =
IO=-20 µA
VIH
or
V IL IO=-4.0 mA
4.4
5.9
4.5
6.0
4.4
5.9
4.4
5.9
4.18
4.31
4.13
4.10
IO=-5.2 mA
5.68
5.8
0.0
5.63
5.60
V
VI =
IO= 20 µA
VIH
or
V IL IO= 4.0 mA
0.1
0.1
0.1
0.0
0.1
0.1
0.1
0.0
0.17
0.1
0.26
0.1
0.33
0.1
0.40
IO= 5.2 mA
0.18
V
0.26
0.33
0.40
VI = VCC or GND
±0.1
±1
±1
µA
VI = VCC or GND
4
40
80
µA
5/12
M54/M74HC194
AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions
o
TA = 25 C
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC
74HC
54HC
Symbol
Parameter
VCC
(V)
tTLH
tTHL
Output Transition
Time
2.0
4.5
Typ.
30
8
Max.
75
15
tPLH
tPHL
Propagation
Delay Time
(CLOCK - Q)
6.0
2.0
4.5
6.0
7
48
15
13
13
115
23
20
16
145
29
25
20
175
35
30
ns
tPHL
Propagation
Delay Time
(CLEAR - Q)
2.0
4.5
6.0
2.0
4.5
52
17
15
13
50
125
25
21
155
31
26
190
38
32
ns
fMAX
Maximum Clock
Frequency
tW(H)
tW(L)
Minimum Pulse
Width
(CLOCK)
6.0
2.0
4.5
6.0
tW(L)
Minimum Pulse
Width
(CLEAR)
Minimum Set-up
Time
(SI, PI - CK)
ts
ts
th
tREM
Minimum Set-up
Time
(S0, S1 - CK)
Min.
6.2
31
37
Min.
Max.
95
19
5.0
25
Min.
Max.
115
23
4.2
21
30
Unit
ns
MHz
59
20
5
4
75
15
13
95
19
16
25
110
22
19
ns
2.0
4.5
6.0
24
6
5
75
15
13
95
19
16
110
22
19
ns
2.0
4.5
20
5
75
15
95
19
110
22
ns
6.0
2.0
4
28
13
75
16
95
20
110
4.5
6.0
7
6
15
13
19
16
23
20
Minimum Hold
Time
2.0
4.5
6.0
0
0
0
0
0
0
0
0
0
Minimum
Removal Time
2.0
4.5
6.0
5
5
5
10
5
5
5
10
5
5
5
10
CIN
Input Capacitance
5
CPD (*)
Power Dissipation
Capacitance
85
ns
ns
ns
pF
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC
6/12
M54/M74HC194
SWITCHING CHARACTERISTICS TEST WAVEFORM
TEST CIRCUIT ICC (Opr.)
7/12
M54/M74HC194
Plastic DIP16 (0.25) MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
0.77
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
0.130
1.27
0.050
P001C
8/12
M54/M74HC194
Ceramic DIP16/1 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
20
0.787
B
7
0.276
D
E
3.3
0.130
0.38
e3
0.015
17.78
0.700
F
2.29
2.79
0.090
0.110
G
0.4
0.55
0.016
0.022
H
1.17
1.52
0.046
0.060
L
0.22
0.31
0.009
0.012
M
0.51
1.27
0.020
0.050
N
P
Q
10.3
7.8
8.05
5.08
0.406
0.307
0.317
0.200
P053D
9/12
M54/M74HC194
SO16 (Narrow) MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.004
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
E
5.8
10
0.385
6.2
0.228
0.393
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
P013H
10/12
M54/M74HC194
PLCC20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
9.78
10.03
0.385
0.395
B
8.89
9.04
0.350
0.356
D
4.2
4.57
0.165
0.180
d1
2.54
0.100
d2
0.56
0.022
E
7.37
8.38
0.290
0.330
e
1.27
0.050
e3
5.08
0.200
F
0.38
0.015
G
0.101
0.004
M
1.27
0.050
M1
1.14
0.045
P027A
11/12
M54/M74HC194
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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12/12