MB90F347CE datasheet(58/84 Pages) FUJITSU

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MB90340E Series

(6) Bus Timing (Write)

(TA

= −40 °C to +105 °C, VCC = 5.0 V ± 10%, VSS = 0.0 V, fCP ≤ 24 MHz)

Parameter

Symbol

Condition

Value

Unit

Min

Max

Valid address

→ WR ↓ time

tAVWL

A23 to A16,

AD15 to AD00,

⎯

tCP

−15

⎯

WR pulse width

tWLWH

3 tCP/2

− 20

⎯

Valid data output

→ WR ↑ time

tDVWH

AD15 to AD00,

3 tCP/2

− 20

⎯

↑ → Data hold time

tWHDX

AD15 to AD00,

⎯

↑ → Address valid time

tWHAX

A23 to A16,

tCP/2

− 10

⎯

↑ → ALE ↑ time

tWHLH

WR, ALE

tCP/2

− 15

⎯

↓ → CLK ↑ time

tWLCH

WR, CLK

tCP/2

− 15

⎯

CLK

tWLCH

2.4 V

ALE

tWHLH

2.4 V

WR (WRL, WRH)

tWLWH

0.8 V

2.4 V

tAVWL

A23 to A16

0.8 V

2.4 V

0.8 V

tWHAX

AD15 to AD00

2.4 V

0.8 V

Address

0.8 V

2.4 V

Write data

tDVWH

0.8 V

2.4 V

tWHDX

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