參數(shù)資料
型號(hào)： SN74LS181N
廠商： MOTOROLA INC
元件分類： 通用總線功能
英文描述： 4-BIT ARITHMETIC LOGIC UNIT
中文描述： LS SERIES, 4-BIT ARITHMETIC LOGIC UNIT, PDIP24
封裝： PLASTIC, DIP-24
文件頁數(shù)： 5/9頁
文件大小： 277K
代理商： SN74LS181N
5-336
FAST AND LS TTL DATA
SN54/74LS181
AC CHARACTERISTICS
(TA = 25
°
C, VCC = 5.0 V, Pin 12 = GND, CL = 15 pF)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
tPLH
tPHL
Propagation Delay,
(Cn to Cn+4)
18
13
27
20
ns
M = 0 V, (Sum or Diff Mode)
See Fig. 4 and Tables I and II
tPLH
tPHL
(Cn to F Outputs)
17
13
26
20
ns
M = 0 V, (Sum Mode)
See Fig. 4 and Table I
tPLH
tPHL
(A or B Inputs to G Output)
19
15
29
23
ns
M = S1 = S2 = 0 V, S0 = S3 = 4.5 V
(Sum Mode) See Fig. 4 and Table I
tPLH
tPHL
(A or B Inputs to G Output)
21
21
32
32
ns
M = S0 = S3 = 0 V, S1 = S2 = 4.5 V
(Diff Mode) See Fig. 5 and Table II
tPLH
tPHL
(A or B Inputs to P Output)
20
20
30
30
ns
M = S1 = S2 = 0 V, S0 = S3 = 4.5 V
(Sum Mode) See Fig. 4 and Table I
tPLH
tPHL
(A or B Inputs to P Output)
20
22
30
33
ns
M = S0 = S3 = 0 V, S1 = S2 = 4.5 V
(Diff Mode) See Fig. 5 and Table II
tPLH
tPHL
(AX or BX Inputs to FX Output)
21
13
32
20
ns
M = S1 = S2 = 0 V, S0 = S3 = 4.5 V
(Sum Mode) See Fig. 4 and Table I
tPLH
tPHL
(AX or BX Inputs to FX Output)
21
21
32
32
ns
M = S0 = S3 = 0 V, S1 = S2 = 4.5 V
(Diff Mode) See Fig. 5 and Table II
tPLH
tPHL
(AX or BX Inputs to FXH Outputs)
38
26
ns
M = S1 = S2 = 0 V, S0 = S3 = 4.5 V
(Sum Mode) See Fig. 4 and Table I
tPLH
tPHL
(AX or BX Inputs to FXH Outputs)
38
38
ns
M = S0 = S3 = 0 V, S1 = S2 = 4.5 V
(Diff Mode) See Fig. 5 and Table II
tPLH
tPHL
(A or B Inputs to F Outputs)
22
26
33
38
ns
M = 4.5 V (Logic Mode)
See Fig. 4 and Table III
tPLH
tPHL
(A or B Inputs to Cn+4 Output)
25
25
38
38
ns
M = 0 V, S0 = S3 = 4.5 V, S1 = S2 = 0 V
(Sum Mode) See Fig. 6 and Table I
tPLH
tPHL
(A or B Inputs to Cn+4 Output)
27
27
41
41
ns
M = 0 V, S0 = S3 = 0 V, S1 = S2 = 4.5 V
(Diff Mode)
tPLH
tPHL
(A or B Inputs to A = B Output)
33
41
50
62
ns
M = S0 = S3 = 0 V, S1 = S2 = 4.5 V
RL = 2.0 k
(Diff Mode) See Fig. 5 and Table II
AC WAVEFORMS
Figure 5
Figure 6
Figure 4
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