Datasheet

Section 25 Electrical Characteristics
R01UH0310EJ0500 Rev. 5.00 Page 1241 of 1384
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
Item Symbol Min. Max. Unit Test Conditions
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
Figures 25.8 to
25.23, 25.34 and
25.35
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
t
OED1
⎯ 15 ns OE delay time 1*
t
OED1B
19 ns
t
OED2
⎯ 15 ns OE delay time 2*
t
OED2B
19 ns
Precharge time 1 t
PCH1
1.0 × t
cyc
−20 ⎯ ns
Precharge time 2 t
PCH2
1.5 × t
cyc
−20 ⎯ ns
Self-refresh precharge time 1 t
RPS1
2.5 × t
cyc
−20 ⎯ ns
Self-refresh precharge time 2 t
RPS2
3.0 × t
cyc
−20 ⎯ ns
Figures 25.22
and 25.23
WAIT setup time t
WTS
25 ⎯ ns
WAIT hold time t
WTH
1 ⎯ ns
Figures 25.10,
25.16, and 25.35
BREQ setup time t
BREQS
30 ⎯ ns Figure 25.24
BACK delay time t
BACD
⎯ 15 ns
Bus floating time t
BZD
⎯ 40 ns
BREQO delay time t
BRQOD
⎯ 25 ns Figure 25.25
Note: * t
OED1
and t
OED2
.correspond to OE-A and RD, and t
OED1B
and t
OED2B
.correspond to OE-B.