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3069RF-ZTAT Datasheet, PDF (772/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER
Item
Symbol
Min
Test
Max
Unit
Conditions
CAS pulse width 1
tCAS1
1.5 tcyc – 20 —
ns
Figure 21.19
to
CAS pulse width 2
tCAS2
1.0 tcyc – 20 —
ns
Figure 21.21
CAS pulse width 3
tCAS3
1.0 tcyc – 20 —
ns
RAS access time
tRAC
—
2.5 tcyc – 40 ns
Address access time t
—
2.0 t – 50 ns
AA
cyc
CAS access time
t
—
CAC
1.5 t – 50 ns
cyc
WE setup time
tWCS
0.5 tcyc – 20 —
ns
WE hold time
tWCH
0.5 tcyc – 15 —
ns
Write data setup time tWDS
0.5 tcyc – 20 —
ns
WE write data hold time tWDH
0.5 tcyc – 15 —
ns
CAS setup time 1
t
0.5 t – 20 —
ns
CSR1
cyc
CAS setup time 2
t
0.5 t – 15 —
ns
CSR2
cyc
CAS hold time
tCHR
0.5 tcyc – 15 —
ns
RAS pulse width
tRAS
1.5 tcyc – 15 —
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 750 of 978