HEF40193B 查看數據表（PDF） - NXP Semiconductors.
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HEF40193B Datasheet PDF : 20 Pages
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NXP Semiconductors
HEF40193B
4-bit up/down binary counter
6. Functional description
Table 3.
MR
H
L
L
L
Function table [1]
PL
X
L
H
H
CPU
X
X
H
CPD
X
X
H
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; = positive-going transition.
Mode
reset (asynchronous)
parallel load
count-up
count-down
MR
PL
D0
D1
D2
D3
CPU
CPD
Q0
Q1
Q2
Q3
TCU
TCD
COUNT
0
Fig 4. Timing diagram
13 14 15 0 1 2 1 0 15 14 13
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HEF40193B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 18 November 2011
© NXP B.V. 2011. All rights reserved.
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