M74HC4515 Просмотр технического описания (PDF) - STMicroelectronics
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M74HC4515
STMicroelectronics
M74HC4515 Datasheet PDF : 10 Pages
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M74HC4514/4515
TRUTH TABLE
INHIBIT
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
INPUTS
A
B
C
D
STROBE
SELECT OUTPUT
HC4514 - ’H’
(HC4515 - ’L’)
L
L
L
L
H
L
L
L
STROBE = ’H’
Refer to truth table
S0 (S0)
S1 (S1)
L
H
L
L
STROBE = ’L’
H
H
L
L
Data at the negative going
L
L
H
L
transition of strobe shall be
H
L
H
L
provided on the each output
L
H
H
L
while strobe is held low.
S2 (S2)
S3 (S3)
S4 (S4)
S5 (S5)
S6 (S6)
H
H
H
L
L
L
L
H
t n-1
tn
S7 (S7)
S8 (S8)
H
L
L
H
S9 (S9)
L
H
L
H
S10 (S10)
H
H
L
H
S11 (S11)
L
L
H
H
H
L
H
H
STROBE
S12 (S12)
S13 (S13)
L
H
H
H
S14 (S14)
H
H
H
H
S15 (S15)
X
X
X
X
HC4514 - ALL OUTPUTS ’L’
(HC4515 - ALL OUTPUTS ’H’)
LOGIC DIAGRAM (HC4514)
FOR HC4515 DEVICE LOGIC DIAGRAM SHOWN AT THE BOTTOM SHALL TAKE THE PLACE OF OUTPUT CIRCUITS.
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