© 2002 Fairchild Semiconductor Corporation DS005959
October 1987
Revid March 2002
CD4028BC BCD-to-Decimal Decoder
CD4028BC
五子棋开局6步必胜BCD-to-Decimal Decoder
General Description
The CD4028BC is a BCD-to-decimal or binary-to-octal decoder consisting of 4 inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the 4 inputs, A, B,C, and D, results in a high level at the lected 1-of-10 dec-imal decoded outputs. Similarly, a 3-bit binary code applied to inputs A, B, and C is decoded in octal at outputs 0–7. A high level signal at the D input inhibits octal decoding and caus outputs 0–7 to go LOW.
犹豫不定All inputs are protected against static discharge damage by diode clamps to V DD and V SS .
Features
s Wide supply voltage range: 3.0V to 15V s High noi immunity:0.45 V DD (typ.)
s Low power TTL compatibility:fan out of 2 driving 74L or 1 driving 74LS s Low power s Glitch free outputs
s “Positive logic” on inputs and outputs
Applications
•Code conversion •Address decoding •Indicator-tube decoder
Ordering Code:
Devices also available in T ape and Reel. Specify by appending the suffix letter “X ” to the ordering code.
Connection Diagram
Top View
守株待兔的近义词Order Number Package Number
Package Description
CD4028BCM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow CD4028BCN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
2
C D 4028B C
财务报告范文Truth Table
Logic Diagram
D C B A 01234567890000100000000000010100000000001000100000000011000100000001000000100000BCD
States
010100000100000
11000000010001 = HIGH
Level 011100000001000 = LOW Level
1000000000001010010000000001101000000000101011000000000111000000000010Extraordinary
States 11010000000001111000000000101
1
1
1
新生儿喝奶粉
1
CD4028BC
Absolute Maximum Ratings (Note 1)
(Note 2)
Recommended Operating Conditions (Note 2)
Note 1: “Absolute Maximum Ratings ” are tho values beyond which the safety of the device cannot be guaranteed, they are not meant to imply that the devices should be operated at the limits. The table of “Recom-mended Operating Conditions ” and “Electrical Characteristics ” provides conditions for actual device operation.Note 2: V SS = 0V unless otherwi specified.
DC Electrical Characteristics (Note 2)
Note 3: I OL and I OH are tested one output at a time.
Supply Voltage (V DD )−0.5 to +18V Input Voltage (V IN )
西海道−0.5 to V DD +0.5V Storage Temperature Range (T S )−65°C to +150°C
Power Dissipation (P D )Dual-In-Line 700 mW Small Outline 500 mW
Lead Temperature (T L )(Soldering, 10 conds)
260°C Supply Voltage (V DD ) 3 to 15V Input Voltage (V IN )
0 to V DD V
Operating Temperature Range (T A )
−55°C to +125°C
Symbol Parameter
Conditions
−55°C +25°C +125°C Units
Min
Max Min
Typ Max Min
Max I DD
Quiescent Device Current
V DD = 5V, V IN = V DD or V SS 50.015150µA
V DD = 10V, V IN = V DD or V SS 100.0110300V DD = 15V, V IN = V DD or V SS
200.0220600V OL
LOW Level Output Voltage
|I O | < 1 µA, V IL = 0V, V IH = V DD V DD = 5V 0.0500.050.05V
V DD = 10V 0.0500.050.05V DD = 15V
0.05
00.05
0.05
V OH
HIGH Level Output Voltage
|I O | < 1 µA, V IL = 0V, V IH = V DD V DD = 5V 4.95 4.955 4.95V
V DD = 10V 9.959.95109.95V DD = 15V
14.95
14.95
1514.95
V IL
LOW Level Input Voltage
|I O | < 1 µA V DD = 5V,V O = 0.5V or 4.5V 1.5 2.25 1.5 1.5V
V DD = 10V,V O = 1V or 9V 3.0 4.5 3.0 3.0V DD = 15V,
V O = 1.5V or 13.5V 4.0
6.75 4.0 4.0
V IH
HIGH Level Input Voltage
|I O | < 1 µA V DD = 5V,V O = 0.5V or 4.5V 3.5 3.5 2.75 3.5V
V DD = 10V,V O = 1V or 9V 7.07.0 5.57.0V DD = 15V,
V O = 1.5V or 13.5V 11.011.08.2511.0I OL
LOW Level Output Current V IH = V DD , V IL = 0V
(Note 3)
V DD = 5V,V O = 0.4V 0.640.51 1.00.36mA
V DD = 10V,V O = 0.5V 1.6 1.3 2.60.9V DD = 15V,
V O = 1.5V 4.2 3.4 6.8 2.4I OH
HIGH Level Output Current V IH = V DD , V IL = 0V
炝炒小白菜(Note 3)
V DD = 5V,V O = 4.6V −0.25−0.2−0.4−0.14mA
V DD = 10V,V O = 9.5V −0.62−0.5−1.0−0.35V DD = 15V,
V O = 13.5V −1.8
−1.5−3.0
−1.1
I IN
平衡木Input Current
V DD = 15V,V IN = 0V −0.1−0.1−1.0µA
V DD = 15V,
V IN = 15V
0.1
0.1 1.0
4
C D 4028B C
AC Electrical Characteristics (Note 4)
T A = 25°C, C L = 50 pF, R L = 200k, Input t r = t f = 20 ns, unless otherwi specified
Note 4: AC Parameters are guaranteed by DC correlated testing.
Switching Time Waveforms
Symbol Parameter
Conditions Min Typ Max Units t PHL or t PLH
Propagation Delay Time
V CC = 5V 240480ns
V CC = 10V 100200V CC = 15V
70140t THL or t TLH
Transition Time
V CC = 5V 175350ns V CC = 10V 75150V CC = 15V
60110C IN
Input Capacitance
Any Input
5
7.5
pF
CD4028BC
Physical Dimensions inches (millimeters) unless otherwi noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M16A
