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MB90480 Datasheet(PDF) 97 Page - Fujitsu Component Limited.

Part No. MB90480
Description  16-bit Proprietary Microcontroller
Download  120 Pages
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Maker  FUJITSU [Fujitsu Component Limited.]
Homepage  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

MB90480 Datasheet(HTML) 97 Page - Fujitsu Component Limited.

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MB90480/485 Series
97
(6) Bus Write Timing
(VCC
= 2.7 V to 3.6 V, VSS = 0.0 V, TA = 0 °C to +70 °C)
* : tCP is internal operating clock cycle time. Refer to “ (1) Clock Timing”.
Parameter
Sym-
bol
Pin name
Condi-
tion
Value
Unit
Remarks
Min
Max
Valid address
→WR↓time
tAVWL
Address, WR
tCP*
− 15
ns
WR pulse width
tWLWH
WRL, WRH
3 tCP*
/ 2 − 25
ns
16 MHz < fCP
25 MHz
3 tCP*
/ 2 − 20
ns
8 MHz < fCP
16 MHz
Valid data output
→WR↑time tDVWH
Data, WR
3 tCP*
/ 2 − 15
ns
WR
↑→data hold time
tWHDX
WR,
Data
10
ns
16 MHz < fCP
25 MHz
20
ns
8 MHz < fCP
16 MHz
30
ns
fCP
≤ 8 MHz
WR
↑→address valid time
tWHAX
WR, Address
tCP*
/ 2 − 10
ns
WR
↑→ALE↑time
tWHLH
WR, ALE
tCP*
/ 2 − 15
ns
WR
↓→CLK↑time
tWLCH
WR, CLK
tCP*
/ 2 − 17
ns


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