M74HC4028M1R [STMICROELECTRONICS]
BCD TO DECIMAL DECODER; BCD到十进制解码器型号: | M74HC4028M1R |
厂家: | ST |
描述: | BCD TO DECIMAL DECODER |
文件: | 总10页 (文件大小:247K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
M54HC4028
M74HC4028
BCD TO DECIMAL DECODER
.
.
.
.
.
.
.
.
HIGH SPEED
tPD = 18 ns (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 4028B
ORDER CODES :
M54HC4028F1R
M74HC4028B1R
M74HC4028M1R
M74HC4028C1R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC4028 is a high speed CMOS BCD-
TO-DECIMAL DECODER fabricated in silicon gate
C2MOS technology. It has the same highspeed per-
formance of LSTTL combined with true CMOS low
power consumption. A BCD code applied to the four
inputs (A to D) provides a high level at the selected
one of the decimal decoded outputs. An illegal BCD
code such as eleven to fifteen gives a low level at
all outputs. The device also can be used as 3-TO-
8-LINE DECODER, when D input is assigned as a
disable input. The device is useful for code conver-
sion, address decoding, memory selection, demulti-
plexing, or read out decoding.
NC =
No Internal
Connection
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
October 1992
1/10
M54/M74HC4028
TRUTH TABLE
INPUTS
OUTPUTS
SELECTED
OUTPUTT
D
L
C
L
B
L
A
L
Y0
H
L
Y1
L
Y2
L
Y3
L
Y4
L
Y5
L
Y6
L
Y7
L
Y8
L
Y9
L
Y0
Y1
L
L
L
H
L
H
L
L
L
L
L
L
L
L
L
L
L
H
H
L
L
H
L
L
L
L
L
L
L
L
Y2
L
L
H
L
L
L
H
L
L
L
L
L
L
L
Y3
L
H
H
H
H
L
L
L
L
H
L
L
L
L
L
L
Y4
L
L
H
L
L
L
L
L
H
L
L
L
L
L
Y5
L
H
H
L
L
L
L
L
L
H
L
L
L
L
Y6
L
H
L
L
L
L
L
L
L
H
L
L
L
Y7
H
H
H
H
L
L
L
L
L
L
L
H
L
L
Y8
L
L
H
X
X
L
L
L
L
L
L
L
L
H
L
Y9
X
H
H
X
L
L
L
L
L
L
L
L
L
NOTE
NOTE
L
L
L
L
L
L
L
L
L
L
X: DON’T CARE
LOGIC DIAGRAM
2/10
M54/M74HC4028
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
IEC LOGIC SYMBOL
PIN No
SYMBOL
NAME AND FUNCTION
1, 2, 3, 4, 5,
6, 7, 9, 14,
15
Y0 to Y9
Decoder Outputs
10, 11, 13,
12
A to D
Data Inputs
8
GND
VCC
Ground (0V)
16
Positive Supply Voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VI
Parameter
Value
Unit
Supply Voltage
-0.5 to +7
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
± 20
V
V
DC Input Voltage
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
3/10
M54/M74HC4028
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
DC SPECIFICATIONS
Test Conditions
VCC
Value
-40 to 85 oC -55 to 125 oC
74HC 54HC
TA = 25 oC
54HC and 74HC
Symbol
Parameter
Unit
(V)
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
0.33
0.33
±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
4/10
M54/M74HC4028
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
30
8
75
15
95
19
110
22
ns
ns
7
13
16
19
tPLH
tPHL
Propagation
Delay Time
96
24
20
5
185
37
230
46
280
56
31
39
48
CIN
Input Capacitance
10
10
10
pF
pF
CPD (*) Power Dissipation
Capacitance
39
(*) 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
SWITCHING CHARACTERISTICS TEST
WAVEFORM
TEST CIRCUIT ICC (Opr.)
INPUT TRANSITION TIME IS THE SAME AS THAT IN CASE OF
SWITCHING CHARACTERISTICSTEST.
5/10
M54/M74HC4028
Plastic DIP16 (0.25) MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
MIN.
0.020
0.030
MAX.
a1
B
b
0.51
0.77
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
6/10
M54/M74HC4028
Ceramic DIP16/1 MECHANICAL DATA
mm
inch
DIM.
MIN.
TYP.
MAX.
20
MIN.
TYP.
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
7/10
M54/M74HC4028
SO16 (Narrow) 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
0.004
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
8/10
M54/M74HC4028
PLCC20 MECHANICAL DATA
mm
inch
DIM.
MIN.
9.78
8.89
4.2
TYP.
MAX.
10.03
9.04
MIN.
0.385
0.350
0.165
TYP.
MAX.
0.395
0.356
0.180
A
B
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
9/10
M54/M74HC4028
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
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10/10
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