M74HC4518 [STMICROELECTRONICS]
HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER; HC4518双十进制计数器HC4520双4位二进制计数器
| 型号： | M74HC4518 |
| 厂家： | 
ST |
| 描述： | HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER |
| 文件： | 总13页 (文件大小：272K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M54/M74HC4518
M54/M74HC4520
HC4518 DUAL DECADE COUNTER
HC4520 DUAL 4 BIT BINARY COUNTER
.
.
.
.
.
.
.
.
HIGH SPEED
fMAX = 55 MHz (TYP.) at VCC = 5 V
LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
BALANCED PROPAGATION DELAYS
tPLH = tPHL
WIDE OPERATING VOLTAGE RANGE
B1R
(Plastic Package)
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
VCC (OPR) = 2 V TO 6 V
PIN AND FUNCTION COMPATIBLE WITH
4520B/4518B
ORDER CODES :
M54HCXXXXF1R
M74HCXXXXB1R
M74HCXXXXM1R
M74HCXXXXC1R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC4518/4520 are high speed CMOS
DUAL 4 BIT BINARY COUNTERS fabricated in sili-
con gate C2MOS technology. They have the same
high speed performance of LSTTL combined with
true CMOS low power consumption.
They consists of two identical internally syn-
chronous 4-stage counters. The counter stages are
D-type flip-flops having interchangeable Clock and
ENABLE inputs for incrementing on either the posi-
tive-going or negative-going transition.
For single-unit operation the ENABLE input is main-
tained ”high” and the counter advances on each
positive-going transition of the CLOCK. The
counters are cleared by high levels on their clear
lines. The counter can be cascaded in the ripple
mode by connecting Q4 to the enable input of the
subsequent counter whilethe clock input ofthe latter
is held permanently low.
NC =
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
No Internal
Connection
March 1993
1/13
M54/M74HC4518/4520
LOGIC DIAGRAM (1/2 HC4518)
LOGIC DIAGRAM (1/2 HC4520)
2/13
M54/M74HC4518/4520
TIMING CHART (HC4518)
TIMING CHART (HC4520)
3/13
M54/M74HC4518/4520
TRUTH TABLE
INPUTS
ENABLE
H
FUNCTION
CLOCK
CLEAR
L
L
L
L
L
L
H
INCREMENT COUNTER
INCREMENT COUNTER
NO CHANGE
L
X
H
X
L
NO CHANGE
NO CHANGE
NO CHANGE
X
X
Q0 THRU Q3 = L
X: Don’t Care Z: High Impedance
PIN DESCRIPTION
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN No
SYMBOL
NAME AND FUNCTION
1, 9
1CLOCK,
2CLOCK
Clock Inputs (LOW to
HIGH, Edge-triggered)
2, 10
1ENABLE, Clock Enable Inputs
2ENABLE
3, 4, 5, 6 1Q0 to 1Q3 Data Outputs
7, 15
1CLEAR,
2CLEAR
Asynchronous Reset
Inputs (Active LOW)
11, 12, 13, 2Q0 to 2Q3 Data Outputs
14
8
GND
VCC
Ground (0V)
16
Positive Supply Voltage
IEC LOGIC SYMBOLS
HC4518
HC4520
4/13
M54/M74HC4518/4520
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VI
Parameter
Value
-0.5 to +7
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
± 20
Unit
V
Supply Voltage
DC Input Voltage
V
VO
DC Output Voltage
V
IIK
DC Input Diode Current
DC Output Diode Current
DC Output Source Sink Current Per Output Pin
mA
mA
mA
mA
mW
oC
IOK
± 20
IO
± 25
ICC or IGND DC VCC or Ground Current
± 50
PD
Tstg
TL
Power Dissipation
500 (*)
Storage Temperature
Lead Temperature (10 sec)
-65 to +150
300
oC
Absolute MaximumRatingsare those values beyond whichdamage tothe 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
VI
Parameter
Value
2 to 6
Unit
V
Supply Voltage
Input Voltage
Output Voltage
0 to VCC
0 to VCC
V
VO
V
Top
Operating Temperature: M54HC Series
M74HC Series
-55 to +125
-40 to +85
oC
oC
tr, tf
Input Rise and Fall Time
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
0 to 1000
0 to 500
0 to 400
ns
5/13
M54/M74HC4518/4520
DC SPECIFICATIONS
Test Conditions
Value
TA = 25 oC
54HC and 74HC
-40 to 85 oC -55 to 125 oC
Symbol
Parameter
Unit
VCC
(V)
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
VIH
High Level Input
Voltage
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
1.5
3.15
4.2
1.5
3.15
4.2
1.5
3.15
4.2
V
V
VIL
Low Level Input
Voltage
0.5
1.35
1.8
0.5
1.35
1.8
0.5
1.35
1.8
VOH
High Level
Output Voltage
1.9
4.4
5.9
2.0
4.5
6.0
1.9
4.4
1.9
4.4
VI =
VIH
or
IO=-20 µA
V
V
5.9
5.9
VIL
IO=-4.0 mA 4.18 4.31
4.13
5.63
4.10
5.60
IO=-5.2 mA 5.68
5.8
0.0
0.0
0.0
VOL
Low Level Output 2.0
Voltage
0.1
0.1
0.1
0.1
0.1
0.1
0.1
VI =
VIH
or
IO= 20 µA
4.5
6.0
4.5
6.0
0.1
0.1
VIL
IO= 4.0 mA
IO= 5.2 mA
0.17 0.26
0.18 0.26
±0.1
0.37
0.37
±1
0.40
0.40
±1
II
Input Leakage
6.0
VI = VCC or GND
µA
µA
Current
ICC
Quiescent Supply 6.0 VI = VCC or GND
Current
4
40
80
6/13
M54/M74HC4518/4520
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Test Conditions
Value
-40 to 85 oC -55 to 125 oC
74HC 54HC
TA = 25 oC
54HC and 74HC
Symbol
Parameter
Unit
VCC
(V)
Min. Typ. Max. Min. Max. Min. Max.
tTLH
tTHL
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
30
8
75
15
95
19
110
22
ns
ns
7
13
16
19
tPLH
tPHL
Propagation
Delay Time
(CK, CE - Qn)
72
22
18
65
20
16
23
51
60
25
6
160
32
200
40
240
48
27
34
41
tPHL
Propagation
Delay Time
(CLR - Qn)
150
30
190
38
225
45
ns
26
33
38
fMAX
Maximum Clock
Frequency
6
4.8
24
28
4
MHz
ns
30
35
20
24
tW(H)
tW(L)
Minimum Pulse
Width
(CK, CE)
75
15
13
75
15
13
50
10
9
95
19
16
95
19
16
60
12
11
10
5
tW(L)
tREM
CIN
Minimum Pulse
Width
(CLR)
20
5
110
22
19
75
15
13
10
ns
4
Minimum
Removal Time
(CLR)
21
3
ns
3
Input Capacitance
5
10
pF
pF
CPD (*) Power Dissipation
Capacitance
for HC4518
for HC4520
38
32
(*) CPD isdefined 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 followingequation. ICC(opr) = CPD • VCC • fIN + ICC/2 (per COUNTER)
7/13
M54/M74HC4518/4520
SWITCHING CHARACTERISTICS TEST WAVEFORMS
TEST CIRCUIT ICC (Opr.)
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TESTS.
8/13
M54/M74HC4518/4520
Plastic DIP16 (0.25) MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
0.51
0.77
TYP.
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
9/13
M54/M74HC4518/4520
Ceramic DIP16/1 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
20
MIN.
MAX.
0.787
0.276
A
B
7
D
E
3.3
0.130
0.700
0.38
0.015
e3
F
17.78
2.29
0.4
2.79
0.55
1.52
0.31
1.27
10.3
8.05
5.08
0.090
0.016
0.046
0.009
0.020
0.110
0.022
0.060
0.012
0.050
0.406
0.317
0.200
G
H
L
1.17
0.22
0.51
M
N
P
7.8
0.307
Q
P053D
10/13
M54/M74HC4518/4520
SO16 (Narrow) MECHANICAL DATA
mm
inch
DIM.
MIN.
TYP.
MAX.
1.75
0.2
MIN.
TYP.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.004
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.)
P013H
11/13
M54/M74HC4518/4520
PLCC20 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
10.03
9.04
MIN.
0.385
0.350
0.165
MAX.
0.395
0.356
0.180
A
B
9.78
8.89
4.2
D
4.57
d1
d2
E
2.54
0.56
0.100
0.022
7.37
8.38
0.290
0.330
0.004
e
1.27
5.08
0.38
0.050
0.200
0.015
e3
F
G
0.101
M
M1
1.27
1.14
0.050
0.045
P027A
12/13
M54/M74HC4518/4520
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. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsare notauthorized foruse ascritical componentsin 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
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A
13/13
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