M66255FP Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
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M66255FP Datasheet PDF : 11 Pages
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MITSUBISHI 〈DIGITAL ASSP〉
M66255FP
SWITCHING CHARACTERISTICS (Ta = 0 ~ 70°C, VCC = 5V ± 10%, GND = 0V)
Symbol
Parameter
tAC
tOH
tOEN
tODIS
Access time
Output hold time
Output enable time
Output disable time
8192 × 10-BIT LINE MEMORY (FIFO)
Limits
Unit
Min.
Typ.
Max.
25
ns
5
ns
5
25
ns
5
25
ns
TIMING CONDITIONS (Ta = 0 ~ 70°C, VCC = 5V ± 10%, GND = 0V, unless otherwise noted)
Symbol
Parameter
tWCK
Write clock (WCK) cycle
tWCKH
Write clock (WCK) “H” pulse width
tWCKL
Write clock (WCK) “L” pulse width
tRCK
Read clock (RCK) cycle
tRCKH
Read clock (RCK) “H” pulse width
tRCKL
Read clock (RCK) “L” pulse width
tDS
Input data setup time to WCK
tDH
Input data hold time to WCK
tRESS
Reset setup time to WCK or RCK
tRESH
Reset hold time to WCK or RCK
tNRESS
Reset nonselect setup time to WCK or RCK
tNRESH
Reset nonselect hold time to WCK or RCK
tWES
WE setup time to WCK
tWEH
WE hold time to WCK
tNWES
WE nonselect setup time to WCK
tNWEH
WE nonselect hold time to WCK
tRES
RE setup time to RCK
tREH
RE hold time to RCK
tNRES
RE nonselect setup time to RCK
tNREH
RE nonselect hold time to RCK
tr, tf
Input pulse rise/fall time
tH
Data hold time (Note 1)
Notes 1: For 1-line access, the following should be satisfied:
WE “H” level period ≤ 20ms – 8192 tWCK – WRES “L” level period
RE “H” level period ≤ 20ms – 8192 tRCK – RRES “L” level period
2: Perform reset operation after turning on power supply.
Limits
Unit
Min.
Typ.
Max.
30
ns
12
ns
12
ns
30
ns
12
ns
12
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
5
ns
20
ns
20
ms
3
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