參數(shù)資料
型號: μPD78F0974
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機微控制器
文件頁數(shù): 29/40頁
文件大?。?/td> 232K
代理商: ΜPD78F0974
29
m
PD78F0974
Flash Memory Programming Characteristics (T
A
= –40 to +85 °C, V
DD
= 1.8 to 5.5 V, V
SS
= 0 V, V
PP
= 9.5 to 10.5 V)
(1)
Basic Characteristics
Operation frequency
f
X
4
8.38
MHz
Supply voltage
V
DD
4.5
5.5
V
V
PPL
When detecting V
PP
low level
–0.3
0.2V
DD
V
V
PPM
When detecting V
PP
V
DD
level
0.8V
DD
V
DD
1.2V
DD
V
V
PPH
When detecting V
PP
high voltage
9.5
10.0
10.5
V
V
DD
supply current
I
DD
50
mA
V
PP
supply current
I
PP
50
mA
Write time (per word)
T
WRT
50
m
s
Write frequency
C
WRT
100
time
Erase time
T
ERASE
2
s
(2)
Serial Write Operation Characteristics
V
PP
set time
t
PARON
V
PP
high voltage supply
1.0
m
s
RESET retention time
t
RROFF
1.0
m
s
V
PP
set time from V
DD
t
DRPAR
V
PP
high voltage supply
1.0
m
s
RESET
set time from V
PP
t
PARRF
V
PP
high voltage supply
1.0
m
s
V
PP
set time from RESET
t
RFPAR
V
PP
high voltage supply
1.0
m
s
V
PP
count start time from
t
RFCF
1.0
m
s
RESET
Count execution time
t
COUNT
2.0
ms
V
PP
counter high-level width
t
VPPH
1.0
m
s
V
PP
counter low-level widt
h
t
VPPL
1.0
m
s
V
PP
counter rise, fall time
t
VPPR
,
1.0
m
s
t
VPPF
Flash Memory Write Mode Setting Timing
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
t
RROFF
RESET(Input)
t
COUNT
t
DRPAR
t
RFCF
t
VPPR
t
VPPH
t
VPPL
t
VPPF
t
RFPAR
t
PARRF
t
PARON
V
DD
0V
V
PPH
V
PPM
V
PP
V
DD
V
PPL
V
DD
0V
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