Datasheet

Section 19 ROM
Rev.6.00 Sep. 27, 2007 Page 901 of 1268
REJ09B0220-0600
AC Characteristics
Table 19.62 AC Characteristics in Auto-Erase Mode
Conditions: V
CC
= 3.3 V ±0.3 V, V
SS
= 0 V, T
a
= 25°C ±5°C
Item Symbol Min Max Unit
Command write cycle t
nxtc
20 — µs
CE hold time t
ceh
0 — ns
CE setup time t
ces
0 — ns
Data hold time t
dh
50 — ns
Data setup time t
ds
50 — ns
Write pulse width t
wep
70 — ns
Status polling start time t
ests
1 — ms
Status polling access time t
spa
— 150 ns
Memory erase time t
erase
100 40000 ms
WE rise time t
r
— 30 ns
WE fall time t
f
— 30 ns
Erase setup time t
ens
100 — ns
Erase end setup time t
enh
100 — ns