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3069RF-ZTAT Datasheet, PDF (742/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER | |||
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Item
Symbol
Min
Test
Max
Unit
Conditions
CAS pulse width 1
tCAS1
1.5 tcyc â 20 â
ns
Figure 21.19
to
CAS pulse width 2
tCAS2
1.0 tcyc â 20 â
ns
Figure 21.21
CAS pulse width 3
tCAS3
1.0 tcyc â 20 â
ns
RAS access time
tRAC
â
2.5 tcyc â 40 ns
Address access time t
â
2.0 t â 50 ns
AA
cyc
CAS access time
t
â
CAC
1.5 t â 50 ns
cyc
WE setup time
tWCS
0.5 tcyc â 20 â
ns
WE hold time
tWCH
0.5 tcyc â 15 â
ns
Write data setup time tWDS
0.5 tcyc â 20 â
ns
WE write data hold time tWDH
0.5 tcyc â 15 â
ns
CAS setup time 1
t
0.5 t â 20 â
ns
CSR1
cyc
CAS setup time 2
t
0.5 t â 15 â
ns
CSR2
cyc
CAS hold time
tCHR
0.5 tcyc â 15 â
ns
RAS pulse width
tRAS
1.5 tcyc â 15 â
ns
Note: In order to secure the address hold time relative to the rise of the RD strobe, address
update mode 2 should be used. For details see section 6.3.5, Address Output Method.
Rev. 5.0, 09/04, page 720 of 978
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