HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 815

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

19.11.6 Auto-Erase Mode
• Auto-erase mode supports only total memory erasing.
• Do not perform a command write during auto-erasing.
• Confirm normal end of auto-erasing by checking I/O
• Status polling I/O
AC Characteristics
Table 19.20 AC Characteristics in Auto-Erase Mode
Conditions: V
Item
Command write cycle
CE hold time
CE setup time
Data hold time
Data setup time
Write pulse width
Status polling start time
Status polling access time
Memory erase time
WE rise time
WE fall time
be used for this purpose (the I/O
operation).
as the next command write has not been performed, reading is possible by enabling CE and
OE.
CC
= 3.3 V ±0.3 V, V
6
and I/O
7
Symbol
t
t
t
t
t
t
t
t
t
t
t
pin information is retained until the next command write. As long
nxtc
ceh
ces
dh
ds
wep
ests
spa
erase
r
f
SS
7
status polling pin is used to identify the end of an auto-erase
= 0 V, T
a
= 25°C ±5°C
Min
20
0
0
50
50
70
1
—
100
—
—
Rev.6.00 Sep. 27, 2007 Page 785 of 1268
6
. Alternatively, status read mode can also
Max
—
—
—
—
—
—
—
150
40000
30
30
REJ09B0220-0600
Unit
µs
ns
ns
ns
ns
ns
ms
ns
ms
ns
ns
Section 19 ROM