参数资料
型号: MC14038BCL
厂商: MOTOROLA INC
元件分类: 算术逻辑单元
英文描述: 4000/14000/40000 SERIES, 1-BIT ADDER/SUBTRACTOR, CDIP16
封装: CERAMIC, DIP-16
文件页数: 3/7页
文件大小: 249K
代理商: MC14038BCL
MOTOROLA CMOS LOGIC DATA
MC14032B MC14038B
130
SWITCHING CHARACTERISTICS* (CL = 50 pF, TA = 25_C)
Characteristic
Symbol
VDD
Vdc
Min
Typ #
Max
Unit
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
tTLH,
tTHL
5.0
10
15
100
50
40
200
100
80
ns
Propagation Delay Time
A, B or Invert to Sum
tPLH, tPHL = (1.7 ns/pF) CL + 195 ns
tPLH, tPHL = (0.66 ns/pF) CL + 87 ns
tPLH, tPHL = (0.5 ns/pF) CL + 65 ns
tPLH,
tPHL
5.0
10
15
280
120
90
1400
300
230
ns
Clock to Sum
tPLH, tPHL = (1.7 ns/pF) CL + 415 ns
tPLH, tPHL = (0.66 ns/pF) CL + 147 ns
tPLH, tPHL = (0.5 ns/pF) CL + 110 ns
5.0
10
15
500
180
135
2400
600
450
ns
Input Setup Time
tsu
5.0
10
15
10
– 10
0
ns
Clock Pulse Frequency
fcl
5.0
10
15
4.0
10
12
1.0
2.5
4.0
MHz
Clock Rise and Fall Times
tTHL, tTLH
5.0
10
15
1 5
5
4
s
* The formulas given are for the typical characteristics only at 25
_C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
TIMING DIAGRAMS
MC14032B
MC14038B
A
B
C
INV
CR
S
WORD 1 + WORD 2
WORD 3 + WORD 4
TRUE SUM
COMPLEMENTED
SUM
WORD 1:
WORD 2:
0.0111100
0.0110010
=
+ 60
+ 50
0.1101110 = + 110
WORD 3:
WORD 4:
1.1011011
1.1001110
=
– 37
– 50
1.0101001 = – 87
WORD 1:
WORD 2:
1.1000011
1.1001101
=
– 61
– 51
1.0010000 = – 112
WORD 3:
WORD 4:
0.0100100
0.0110001
=
+ 36
+ 49
0.1010101 = + 85
TRUE SUM
COMPLEMENTED
SUM
WORD 1 + WORD 2
WORD 3 + WORD 4
A
B
C
INV
CR
S
NOTE: Unused input pins must be connected to either VDD or VSS.
相关PDF资料
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