STMICROELECTRONICS M74HC191RM13TR

M74HC191
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
■
■
■
■
■
■
■
HIGH SPEED :
fMAX = 61 MHz (TYP.) at VCC = 6V
LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
HIGH NOISE IMMUNITY:
VNIH = V NIL = 28 % VCC (MIN.)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 191
DESCRIPTION
The M74HC191 is an high speed CMOS 4-BIT
SYNCHRONOUS
UP/DOWN
COUNTER
fabricated with silicon gate C2MOS technology.
State changes of the counter are synchronous
with the LOW-to-HIGH transition of the Clock
Pulse Input.
An asynchronous parallel load input overrides
counting and loads the data present on the DATA
inputs into the flip-flops, which makes it possible to
use the circuits as programmable counters. A
count enable input serves as the carry/borrow
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC191B1R
M74HC191M1R
T&R
M74HC191RM13TR
M74HC191TTR
input in multi-stage counters. Control input, Down/
Up, determines whether a circuit counts up or
down. A MAX/MIN output and a Ripple Clock
output provide overflow/underflow indication and
make possible a variety of methods for generating
carry/borrow signals in multi-stage counter
applications.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
1/14
M74HC191
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
3, 2, 6, 7
QA to QD
NAME AND FUNCTION
Flip-Flop Outputs
Count Enable Input
ENABLE
(Active LOW)
U/D
Parallel Data Input
LOAD
Load Input (Active LOW)
MA/MI OUT Terminal Count Output
Ripple Clock Output
RC
(Active LOW)
Clock Input (LOW to
CLOCK
HIGH, edge triggered)
DA to DD Data Inputs
GND
Ground (0V)
Vcc
Positive Supply Voltage
4
5
11
12
13
14
15, 1, 10, 9
8
16
TRUTH TABLE
INPUTS
OUTPUTS
FUNCTION
LOAD
ENABLE
D/U
CLOCK
QA
QB
QC
QD
X
a
b
c
d
L
X
X
H
L
L
UP COUNT
UP COUNT
H
L
H
DOWN COUNT
DOWN COUNT
H
H
X
NO CHANGE
NO COUNT
H
X
X
NO CHANGE
NO COUNT
X : Don’t Care
a - d : The level of steady state inputs a through d respectively
2/14
PRESET DATA
M74HC191
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
3/14
M74HC191
TIMING CHART
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Parameter
Supply Voltage
Value
Unit
-0.5 to +7
V
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
V
DC Input Diode Current
± 20
mA
IOK
DC Output Diode Current
± 20
mA
IO
DC Output Current
± 25
mA
± 50
mA
VI
DC Input Voltage
VO
DC Output Voltage
IIK
ICC or IGND DC VCC or Ground Current
PD
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
V
500(*)
mW
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
4/14
M74HC191
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Value
Supply Voltage
VI
Input Voltage
VO
Output Voltage
Top
Operating Temperature
Input Rise and Fall Time
tr, tf
Unit
2 to 6
V
0 to VCC
V
0 to VCC
V
-55 to 125
°C
VCC = 2.0V
0 to 1000
ns
VCC = 4.5V
0 to 500
ns
VCC = 6.0V
0 to 400
ns
DC SPECIFICATIONS
Test Condition
Symbol
VIH
VIL
VOH
VOL
II
ICC
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
Value
TA = 25°C
VCC
(V)
Min.
2.0
4.5
6.0
2.0
4.5
6.0
Typ.
Max.
1.5
3.15
4.2
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
1.5
3.15
4.2
0.5
1.35
1.8
Max.
1.5
3.15
4.2
0.5
1.35
1.8
V
0.5
1.35
1.8
2.0
IO=-20 µA
1.9
2.0
1.9
1.9
4.5
IO=-20 µA
4.4
4.5
4.4
4.4
6.0
IO=-20 µA
5.9
6.0
5.9
5.9
4.5
IO=-4.0 mA
4.18
4.31
4.13
4.10
5.68
Unit
V
V
6.0
IO=-5.2 mA
2.0
IO=20 µA
0.0
0.1
0.1
0.1
4.5
IO=20 µA
0.0
0.1
0.1
0.1
6.0
IO=20 µA
0.0
0.1
0.1
0.1
4.5
IO=4.0 mA
0.17
0.26
0.33
0.40
6.0
IO=5.2 mA
0.18
0.26
0.33
0.40
6.0
VI = VCC or GND
± 0.1
±1
±1
µA
6.0
VI = VCC or GND
4
40
80
µA
5.8
5.63
5.60
V
5/14
M74HC191
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Symbol
Parameter
tTLH tTHL Output Transition
Time
tPLH tPHL Propagation Delay
Time
(CLOCK - Q)
tPLH tPHL Propagation Delay
Time
(CLOCK - RCO)
tPLH tPHL Propagation Delay
Time (CLOCK MAX/MIN)
tPLH tPHL Propagation Delay
Time (LOAD - Q)
tPLH tPHL Propagation Delay
Time (DATA - Q)
tPLH tPHL Propagation Delay
Time (ENABLE RCO)
tPLH tPHL Propagation Delay
Time (D/U - RCO)
tPLH tPHL Propagation Delay
Time (D/U - MAX/
MIN)
fMAX
Maximum Clock
Frequency
tW(H)
tW(L)
Minimum Pulse
Width (CLOCK)
tW(L)
Minimum Pulse
Width (LOAD)
ts
ts
th
6/14
Minimum Set-up
Time(SI, PI - CK)
Minimum Set-up
Time(S0, S1 - CK)
Minimum Hold
Time
VCC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Value
TA = 25°C
Min.
6.2
31
37
Typ.
Max.
30
8
7
92
23
20
39
13
11
120
30
26
108
27
23
84
21
18
39
13
11
63
21
18
64
18
15
9
37
44
40
10
9
36
9
8
80
20
17
16
4
3
75
15
13
180
36
31
120
24
20
240
48
41
205
41
35
175
35
30
105
21
18
180
36
31
160
32
27
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
95
19
16
225
45
38
150
30
26
300
60
51
255
51
43
220
44
37
130
26
22
225
45
38
200
40
34
4
20
24
100
20
17
75
15
13
175
35
30
50
10
9
0
0
0
Max.
110
22
19
270
54
46
180
36
31
360
72
61
310
61
53
265
53
45
160
32
27
270
54
46
240
48
41
3.4
17
20
125
25
21
95
19
16
220
44
37
60
12
11
0
0
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
150
30
26
110
22
19
265
53
45
75
15
13
0
0
0
ns
ns
ns
ns
ns
M74HC191
Test Condition
Symbol
tREM
Parameter
Minimum Removal
Time (CLEAR)
Value
TA = 25°C
VCC
(V)
Min.
2.0
4.5
6.0
Typ.
Max.
12
3
3
50
10
9
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
60
12
11
Unit
Max.
65
15
13
ns
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
Parameter
VCC
(V)
Value
TA = 25°C
Min.
Typ.
Max.
10
CIN
Input Capacitance
5.0
5
CPD
Power Dissipation
Capacitance (note
1)
5.0
112
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
pF
1) 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 operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
7/14
M74HC191
WAVEFORM 1: PROPAGATION DELAY TIME, MINIMUM PULSE WIDTH (CLOCK)(f=1MHz; 50% duty
cycle)
WAVEFORM 2 : PROPAGATION DELAY TIME, SETUP AND HOLD TIME (A-D TO LOAD) (f=1MHz;
50% duty cycle)
8/14
M74HC191
WAVEFORM 3 : MINIMUM PULSE WIDTH (LOAD) AND REMOVAL TIME (LOAD TO CLOCK)
(f=1MHz; 50% duty cycle)
WAVEFORM 4 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
9/14
M74HC191
WAVEFORM 5 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
WAVEFORM 6 : SETUP AND HOLD TIME (f=1MHz; 50% duty cycle)
10/14
M74HC191
Plastic DIP-16 (0.25) MECHANICAL DATA
mm.
inch
DIM.
MIN.
a1
0.51
B
0.77
TYP
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
11/14
M74HC191
SO-16 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.003
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
10
0.385
0.393
E
5.8
6.2
0.228
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.)
PO13H
12/14
M74HC191
TSSOP16 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.9
5
5.1
0.193
0.197
0.201
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
1
e
0.65 BSC
K
0°
L
0.45
A
0.60
0.0256 BSC
8°
0°
0.75
0.018
8°
0.024
0.030
A2
A1
b
e
K
c
L
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
13/14
M74HC191
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
© The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco
Singapore - Spain - Sweden - Switzerland - United Kingdom
© http://www.st.com
14/14