M74HC161RM13TR [STMICROELECTRONICS]
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER; 同步可预置4位计数器
| 型号： | M74HC161RM13TR |
| 厂家： | 
ST |
| 描述： | SYNCHRONOUS PRESETTABLE 4-BIT COUNTER |
| 文件： | 总12页 (文件大小：955K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M74HC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
■
■
■
■
■
■
■
HIGH SPEED :
= 62 MHz (TYP.) at V = 6V
f
MAX
CC
LOW POWER DISSIPATION:
=4µA(MAX.) at T =25°C
I
CC
A
HIGH NOISE IMMUNITY:
= V = 28 % V (MIN.)
V
NIH
NIL
CC
DIP
SOP
TSSOP
T & R
SYMMETRICAL OUTPUT IMPEDANCE:
|I | = I = 4mA (MIN)
OH
OL
BALANCED PROPAGATION DELAYS:
t
t
ORDER CODES
PACKAGE
PLH
PHL
WIDE OPERATING VOLTAGE RANGE:
(OPR) = 2V to 6V
TUBE
V
CC
DIP
SOP
M74HC161B1R
M74HC161M1R
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 161
M74HC161RM13TR
M74HC161TTR
TSSOP
DESCRIPTION
The M74HC161 is an high speed CMOS
Two enable inputs (TE and PE) and CARRY
output are provided to enable easy cascading of
counters, which facilities easy implementation of
N-bit counters without using external gates.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
SYNCHRONOUS
4-BIT
BINARY
PRESETTABLE COUNTER fabricated with silicon
2
gate C MOS technology.
The CLOCK input is active on the rising edge.
Both LOAD and CLEAR inputs are active LOW.
Presetting is synchronous on the rising edge of
the clock, the function is cleared asynchronously.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/12
M74HC161
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
Asynchronous Master
Reset
1
CLEAR
CLOCK
Clock Input (LOW to
HIGH, Edge-triggered)
2
3, 4, 5, 6
A, B, C, D Data Inputs
7
10
9
PE
TE
Count Enable Input
Count Enable Carry Input
Parallel Enable Input
LOAD
14, 13, 12,
11
QA to QD Flip Flop Outputs
15
8
CARRY
GND
Terminal Count Output
Ground (0V)
16
Vcc
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
FUNCTION
CLEAR LOAD
PE
X
TE
X
CLOCK
QA
L
QB
QC
L
QD
L
L
X
L
X
L
RESET TO "0"
PRESET DATA
H
X
X
A
B
C
D
H
H
H
H
H
H
X
X
L
L
X
H
X
NO CHANGE
NO CHANGE
COUNT UP
NO COUNT
NO COUNT
COUNT
H
X
H
NO CHANGE
NO COUNT
X : Don’t Care
A, B, C, D : Logic level of data inputs
Carry : CARRY = TE·Q ·Q ·Q ·Q
A
B
C
D
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/12
M74HC161
TIMING CHART
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
Supply Voltage
-0.5 to +7
V
V
CC
V
DC Input Voltage
-0.5 to V + 0.5
I
O
CC
V
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
-0.5 to V + 0.5
V
CC
I
± 20
± 20
mA
mA
mA
mA
mW
°C
IK
I
OK
I
± 25
O
I
or I
DC V
or Ground Current
CC
± 50
CC
GND
P
Power Dissipation
500(*)
-65 to +150
300
D
T
Storage Temperature
Lead Temperature (10 sec)
stg
T
°C
L
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
3/12
M74HC161
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
Supply Voltage
2 to 6
0 to V
V
V
CC
V
Input Voltage
I
CC
V
Output Voltage
0 to V
CC
V
O
T
Operating Temperature
Input Rise and Fall Time
-55 to 125
0 to 1000
0 to 500
0 to 400
°C
ns
ns
ns
op
V
V
V
= 2.0V
= 4.5V
= 6.0V
CC
CC
CC
t , t
r
f
DC SPECIFICATIONS
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
V
High Level Input
Voltage
2.0
4.5
6.0
2.0
4.5
6.0
2.0
1.5
3.15
4.2
1.5
3.15
4.2
1.5
3.15
4.2
IH
V
V
V
Low Level Input
Voltage
0.5
1.35
1.8
0.5
1.35
1.8
0.5
1.35
1.8
IL
V
High Level Output
Voltage
I =-20 µA
1.9
4.4
5.9
2.0
4.5
6.0
1.9
4.4
1.9
4.4
OH
O
I =-20 µA
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
O
I =-20 µA
5.9
5.9
V
V
O
I =-4.0 mA
4.18 4.31
4.13
5.63
4.10
5.60
O
I =-5.2 mA
5.68
5.8
0.0
0.0
0.0
O
V
Low Level Output
Voltage
I =20 µA
0.1
0.1
0.1
0.1
0.1
0.1
0.1
OL
O
I =20 µA
O
I =20 µA
0.1
0.1
O
I =4.0 mA
0.17 0.26
0.18 0.26
0.33
0.33
0.40
0.40
O
I =5.2 mA
O
I
Input Leakage
Current
I
V = V
or GND
6.0
6.0
± 0.1
± 1
± 1
µA
µA
I
CC
CC
I
Quiescent Supply
Current
CC
V = V
or GND
4
40
80
I
4/12
M74HC161
AC ELECTRICAL CHARACTERISTICS (C = 50 pF, Input t = t = 6ns)
L
r
f
Test Condition
Value
-40 to 85°C -55 to 125°C Unit
T = 25°C
Symbol
Parameter
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
t
t
Output Transition
Time
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
25
7
75
15
95
19
110
22
TLH THL
ns
ns
6
13
16
19
t
t
t
t
Propagation Delay
Time
48
16
14
57
19
16
39
13
11
60
20
17
72
24
20
18
53
62
18
6
125
25
155
31
190
38
PLH PHL
(CLOCK - Q)
21
26
32
t
Propagation Delay
Time
150
30
190
38
225
45
PLH PHL
ns
(CLOCK - CARRY)
26
32
38
t
Propagation Delay
Time
100
20
125
25
150
30
PLH PHL
ns
(TE - CARRY)
17
21
26
t
t
Propagation Delay
Time
150
30
190
38
225
45
PLH
PHL
ns
(CLEAR - Q)
26
32
38
Propagation Delay
Time
200
40
250
50
300
60
ns
(CLEAR - CARRY)
34
43
51
f
Maximum Clock
Frequency
6.2
31
37
5
4.2
21
25
MAX
25
30
MHz
ns
t
t
Minimum Pulse
Width (CLOCK)
75
15
13
75
15
13
100
20
17
75
15
13
0
95
19
16
95
19
16
125
25
21
95
19
16
0
110
22
19
110
22
19
150
30
26
110
22
19
0
W(H)
W(L)
W(L)
6
t
Minimum Pulse
Width (CLEAR)
24
7
ns
6
t
t
t
Minimum Set-up
Time
40
10
8
s
s
h
ns
(LOAD, PE, TE)
Minimum Set-up
Time
20
5
ns
(A, B, C, D)
3
Minimum Hold
Time
0
0
0
ns
(A, B - CLOCK)
0
0
0
t
Minimum Removal
Time
18
4
50
10
9
65
13
11
75
15
13
REM
ns
3
5/12
M74HC161
CAPACITIVE CHARACTERISTICS
Test Condition
Value
T = 25°C
Symbol
Parameter
-40 to 85°C -55 to 125°C Unit
A
V
CC
(V)
Min. Typ. Max. Min. Max. Min. Max.
C
Input Capacitance
5.0
5
10
10
10
pF
pF
IN
C
Power Dissipation
Capacitance (note
1)
PD
5.0
50
1) C is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
PD
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
= C x V x f + I
CC(opr)
PD CC IN CC
TEST CIRCUIT
C
R
= 50pF or equivalent (includes jig and probe capacitance)
L
T
= Z
of pulse generator (typically 50Ω)
OUT
WAVEFORM 1: PROPAGATION DELAY TIMES, CLOCK MINIMUM PULSE WIDTH
(f=1MHz; 50% duty cycle)
6/12
M74HC161
WAVEFORM 2 : PROPAGATION DELAY TIMES,CLEAR MINIMUM PULSE WIDTH (CLEAR MODE)
(f=1MHz; 50% duty cycle)
WAVEFORM 3 : SETUP AND HOLD TIMES (PRESET MODE) (f=1MHz; 50% duty cycle)
7/12
M74HC161
WAVEFORM 4 : SETUP AND HOLD TIMES (COUNTENABLE MODE) (f=1MHz; 50% duty cycle)
WAVEFORM 5 : PROPAGATION DELAY TIMES (CASCADE MODE) (f=1MHz; 50% duty cycle)
8/12
M74HC161
Plastic DIP-16 (0.25) MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
0.51
0.77
MAX.
MIN.
0.020
0.030
MAX.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
17.78
0.335
0.100
0.700
e3
F
7.1
5.1
0.280
0.201
I
L
3.3
0.130
Z
1.27
0.050
P001C
9/12
M74HC161
SO-16 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.75
0.2
MIN.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.003
1.65
0.46
0.25
0.35
0.19
0.013
0.007
b1
C
0.5
0.019
c1
D
45° (typ.)
9.8
5.8
10
0.385
0.228
0.393
0.244
E
6.2
e
1.27
8.89
0.050
0.350
e3
F
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.024
G
L
1.27
0.62
M
S
8° (max.)
PO13H
10/12
M74HC161
TSSOP16 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.2
MIN.
MAX.
0.047
0.006
0.041
0.012
0.0089
0.201
0.260
0.176
A
A1
A2
b
0.05
0.8
0.15
1.05
0.30
0.20
5.1
0.002
0.031
0.007
0.004
0.193
0.244
0.169
0.004
0.039
1
0.19
0.09
4.9
c
D
5
6.4
0.197
0.252
E
6.2
6.6
E1
e
4.3
4.4
4.48
0.173
0.65 BSC
0.0256 BSC
K
0°
8°
0°
8°
L
0.45
0.60
0.75
0.018
0.024
0.030
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
11/12
M74HC161
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.
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© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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12/12
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