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HD64F2149YV Folha de dados(PDF) 756 Page - Renesas Technology Corp

Nome de Peças HD64F2149YV
Descrição Electrónicos  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
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HD64F2149YV Folha de dados(HTML) 756 Page - Renesas Technology Corp

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Section 22 ROM
Rev. 3.00 Jan 18, 2006 page 728 of 1044
REJ09B0280-0300
22.10.6
Auto-Erase Mode
AC Characteristics
Table 22.18 AC Characteristics in Auto-Erase Mode
Conditions: V
CC = 3.3 V ±0.3 V, VSS = 0 V, Ta = 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
CE
FA17 to FA0
FO7 to FO0
FO6
FO7
OE
WE
tests
tnxtc
tnxtc
tces
tceh
tdh
CLin
DLin
twep
FO0 to FO5 = 0
H'20
H'20
Erase normal end
confirmation signal
tf
tr
tds
tspa
terase (100 to 40000 ms)
Erase end identification
signal
Figure 22.21 Auto-Erase Mode Timing Waveforms



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