DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 685

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

19.22.6 Auto-Erase Mode
AC Characteristics
Table 19-46 AC Characteristics in Auto-Erase Mode
Conditions: V
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
(the I/O
Status polling I/O
write has not been performed, reading is possible by enabling CE and OE.
7
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
status polling pin is used to identify the end of an auto-erase operation).
CC
I/O
= 5.0 V 10%, V
A
5
18
to I/O
to A
6
I/O
I/O
WE
OE
CE
and I/O
0
7
6
0
7
pin information is retained until the next command write. As long as the next command
Figure 19-60 Auto-Erase Mode Timing Waveforms
SS
t
ces
t
f
= 0 V, T
t
ds
t
wep
H'20
Symbol
t
t
t
t
t
t
t
t
t
t
t
nxtc
ceh
ces
dh
ds
wep
ests
spa
erase
r
f
a
= 25 C 5 C
t
t
ceh
r
t
dh
t
nxtc
6
. Alternatively, status read mode can also be used for this purpose
Min
20
0
0
50
50
70
1
—
100
—
—
H'20
Erase end identifi-
cation signal
Erase normal end
confirmation signal
t
ests
t
erase
t
spa
Max
—
—
—
—
—
—
—
150
40000
30
30
H'00
Rev.6.00 Oct.28.2004 page 655 of 1016
t
nxtc
Unit
ns
ns
ns
ns
ns
ms
ns
ms
ns
ns
s
REJ09B0138-0600H