HEF4516B データシートの表示（PDF） - NXP Semiconductors.
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HEF4516B Datasheet PDF : 16 Pages
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NXP Semiconductors
HEF4516B
Binary up/down counter
7. Functional description
Table 3. Function table[1]
MR
PL
UP/DN
CE
CP
L
H
X
X
X
L
L
X
H
X
L
L
L
L
↑
L
L
H
L
↑
H
X
X
X
X
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; ↑ = positive-going transition.
MODE
parallel load
no change
count down
count up
reset
CP
CE
UP/DN
MR
PL
D0
VDD
D1
VSS
D2
D3
Q0
Q1
Q2
Q3
TC
count 5 6 7 8 9 10 11 12 13 14 15 9 8 7 6 5 4 3 2 1 0 0 15 0
001aae693
Fig 4. Timing diagram
HEF4516B_6
Product data sheet
Rev. 06 — 11 December 2009
© NXP B.V. 2009. All rights reserved.
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