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MC14099BDW データシートの表示(PDF) - Motorola => Freescale
部品番号
コンポーネント説明
メーカー
MC14099BDW
8−Bit Addressable Latches
Motorola => Freescale
MC14099BDW Datasheet PDF : 9 Pages
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MC14099B
FUNCTION DIAGRAM
RESET 2
DATA 3
9 Q0
WRITE
DISABLE
4
A0 5
A1 6
A2 7
(M.S.B.)
TO
OTHER
LATCHES
ZERO
SELECT
ADDRESS
DECODER
EACH LATCH
OTHER LATCHES
10 Q1
11 Q2
12 Q3
13 Q4
14 Q5
15 Q6
1 Q7
TRUTH TABLE
Write
Disable
Addressed Unaddressed
Reset
Latch
Latches
0
0
Data
Qn*
0
1
Data
Reset†
1
0
Qn*
Qn*
1
1
Reset
Reset
* Qn is previous state of latch.
†Reset to zero state.
CAUTION:
To avoid unintentional data changes in the latches, Write
Disable must be active (high) during transitions on the
address inputs A0, A1, and A2.
SWITCHING WAVEFORMS
DATA OR
WRITE DISABLE
OUTPUT Q
50%
tPLH
90%
50%
10%
tTLH
VDD
VSS
VDD
tPHL
ADDRESS
50%
VSS
tsu
tw(L) trem
VDD
tTHL
WRITE
DISABLE
50%
VSS
RESET
tw(H)
VDD
50%
VSS
tPHL
tsu
th
VDD
DATA
50%
VSS
OUTPUT Q
MOTOROLA CMOS LOGIC DATA
MC14099B MC14599B
249
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