Datasheet

Section 25 Electrical Characteristics
Rev.6.00 Mar. 18, 2009 Page 919 of 980
REJ09B0050-0600
Table 25.20 Bus Timing (2)
Conditions: V
CC
= 3.0 V to 3.6 V, AV
CC
= 3.0 V to 3.6 V, V
ref
= 3.0 V to AV
CC
, V
SS
= AV
SS
= 0 V,
φ = 8 MHz to 33 MHz, T
a
= –20°C to +75°C (regular specifications),
T
a
= –40°C to +85°C (wide-range specifications)
Item Symbol Min Max Unit Test Conditions
WR delay time 1 t
WRD1
— 15 ns
WR delay time 2 t
WRD2
— 15 ns
Figures 25.6 to
25.19
WR pulse width 1 t
WSW1
1.0 × t
cyc
–13 — ns
WR pulse width 2 t
WSW2
1.5 × t
cyc
–13 — ns
Write data delay time t
WDD
— 20 ns
Write data setup time 1 t
WDS1
0.5 × t
cyc
–13 — ns
Write data setup time 2 t
WDS2
1.0 × t
cyc
–13 — ns
Write data setup time 3 t
WDS3
1.5 × t
cyc
–13 — ns
Write data hold time 1 t
WDH1
0.5 × t
cyc
–8 — ns
Write data hold time 2 t
WDH2
1.0 × t
cyc
–8 — ns
Write data hold time 3 t
WDH3
1.5 × t
cyc
–8 — ns
Write command setup time 1 t
WCS1
0.5 × t
cyc
–10 — ns
Write command setup time 2 t
WCS2
1.0 × t
cyc
–10 — ns
Write command hold time 1 t
WCH1
0.5 × t
cyc
–10 — ns
Write command hold time 2 t
WCH2
1.0 × t
cyc
–10 — ns
Read command setup time 1 t
RCS1
1.5 × t
cyc
–10 — ns
Read command setup time 2 t
RCS2
2.0 × t
cyc
–10 — ns
Read command hold time t
RCH
0.5 × t
cyc
–10 — ns
CAS delay time 1 t
CASD1
— 15 ns
CAS delay time 2 t
CASD2
— 15 ns
CAS setup time 1 t
CSR1
0.5 × t
cyc
–10 — ns
CAS setup time 2 t
CSR2
1.5 × t
cyc
–10 — ns
CAS pulse width 1 t
CASW1
1.0 × t
cyc
–20 — ns
CAS pulse width 2 t
CASW2
1.5 × t
cyc
–20 — ns
CAS precharge time 1 t
CPW1
1.0 × t
cyc
–20 — ns
CAS precharge time 2 t
CPW2
1.5 × t
cyc
–20 — ns
OE delay time 1 t
OED1
— 15 ns
OE delay time 2 t
OED2
— 15 ns