M66258FP View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
M66258FP Datasheet PDF : 14 Pages
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M66258FP
Switching Characteristics
Access time
Output hold time
Output enable time
Output disable time
Item
(Ta = 0 to 70°C, VCC = 5 V ± 10%, GND = 0 V, unless otherwise noted)
Symbol
Min
Typ
Max
Unit
tAC


16
ns
tOH
3


ns
tOEN
3

16
ns
tODIS
3

16
ns
Timing Requirements
(Ta = 0 to 70°C, VCC = 5 V ± 10%, GND = 0 V, unless otherwise noted)
Item
Symbol
Min
Typ
Max
Unit
Write clock (WCK) cycle
Write clock (WCK) "H" pulse width
tWCK
tWCKH
20


ns
8


ns
Write clock (WCK) "L" pulse width
Read clock (RCK) cycle
tWCKL
tRCK
8


ns
20


ns
Read clock (RCK) "H" pulse width
Read clock (RCK) "L" pulse width
tRCKH
tRCKL
8


ns
8


ns
Input data setup time for WCK
Input data hold time for WCK
tDS
4


ns
tDH
3


ns
Reset setup time for WCK/RCK
Reset hold time for WCK/RCK
tRESS
tRESH
4


ns
3


ns
Reset non-selection setup time for WCK/RCK
Reset non-selection hold time for WCK/RCK
tNRESS
tNRESH
4


ns
3


ns
WE setup time for WCK
WE hold time for WCK
tWES
tWEH
4


ns
3


ns
WE non-selection setup time for WCK
WE non-selection hold time for WCK
tNWES
tNWEH
4


ns
3


ns
RE setup time for RCK
RE hold time for RCK
tRES
4


ns
tREH
3


ns
RE non-selection setup time for RCK
RE non-selection hold time for RCK
tNRES
tNREH
4


ns
3


ns
Input pulse up/down time
tr, tf


20
ns
Data hold time*
tH


20
ms
Notes: Perform reset operation after turning on power supply.
* For 1 line access, the following conditions must be satisfied:
WE high-level period ≤ 20 ms − 8192 • tWCK − WRES low-level period
RE high-level period ≤ 20 ms − 8192 • tRCK − RRES low-level period
REJ03F0252-0200 Rev.2.00 Sep 14, 2007
Page 4 of 13
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