DM74LS181N Просмотр технического описания (PDF) - Fairchild Semiconductor

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DM74LS181N

4-Bit Arithmetic Logic Unit

Fairchild Semiconductor 

Diff Mode Test Table 2

S1 = S2 = 4.5V, S0 = S3 = M = 0V

Input

Symbol

Under

Test

tPLH

A

tPHL

tPLH

B

tPHL

tPLH

A

tPHL

tPLH

B

tPHL

tPLH

A

tPHL

tPLH

B

tPHL

tPLH

A

tPHL

tPLH

B

tPHL

tPLH

A

tPHL

tPLH

B

tPHL

tPLH

Cn

tPHL

Function Inputs

Other Input

Same Bit

Apply

4.5V

Apply

GND

None

B

A

None

None

B

A

None

B

None

None

A

None

B

A

None

B

None

None

A

None

None

Other Data Inputs

Apply

4.5V

Remaining

A

Remaining

A

None

None

None

None

Remaining

A

Remaining

A

None

None

All

A and B

Apply

GND

Remaining

B, Cn

Remaining

B, Cn

Remaining

A and B, Cn

Remaining

A and B, Cn

Remaining

A and B, Cn

Remaining

A and B, Cn

Remaining

B, Cn

Remaining

B, Cn

Remaining

A and B, Cn

Remaining

A and B, Cn

None

Logic Mode Test Table 3 Function Inputs

S1 = S2 = M = 4.5V, S0 = S3 = 0V

Input

Symbol

Under

Test

Other Input

Same Bit

Apply

Apply

4.5V

GND

tPLH

A

B

None

tPHL

tPLH

B

A

None

tPHL

Other Data Inputs

Apply

4.5V

None

None

Apply

GND

Remaining

A and B, Cn

Remaining

A and B, Cn

Output

Under

Test

Fi

Fi

P

P

G

G

A=B

A=B

Cn+4

Cn+4

Cn+4

Output

Under

Test

Any F

Any F

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