參數(shù)資料
型號: μPD78P048A
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 51/72頁
文件大?。?/td> 387K
代理商: ΜPD78P048A
m
PD78P048A
51
AC characteristics
(1) PROM write mode
(a) Page program mode (T
A
= 25 ±5 °C, V
DD
= 6.5 ±0.25 V, V
PP
= 12.5 ±0.3 V)
Parameter
Symbol
Symbol
Note
Conditions
MIN.
TYP.
MAX.
Unit
Address setup time (to OE
)
t
AS
t
AS
2
m
s
OE setup time
t
OES
t
OES
2
m
s
CE setup time (to OE
)
t
CES
t
CES
2
m
s
Input data setup time (to OE
)
t
DS
t
DS
2
m
s
Address hold time (from OE
)
t
AH
t
AH
2
m
s
t
AHL
t
AHL
2
m
s
t
AHV
t
AHV
0
m
s
Input data hold time (from OE
)
t
DH
t
DH
2
m
s
Data output float delay time from OE
t
DF
t
DF
0
250
ns
V
PP
setup time (to OE
)
t
VPS
t
VPS
1.0
ms
V
DD
setup time (to OE
)
t
VDS
t
VCS
1.0
ms
Program pulse width
t
PW
t
PW
0.095
0.1
0.105
ms
Valid data delay time from OE
t
OE
t
OE
1
m
s
OE pulse width during data latching
t
LW
t
LW
1
m
s
PGM setup time
t
PGMS
t
PGMS
2
m
s
CE hold time
t
CEH
t
CEH
2
m
s
OE hold time
t
OEH
t
OEH
2
m
s
(b) Byte program mode (T
A
= 25 ±5 °C, V
DD
= 6.5 ±0.25 V, V
PP
= 12.5 ±0.3 V)
Parameter
Symbol
Symbol
Note
Conditions
MIN.
TYP.
MAX.
Unit
Address setup time (to PGM
)
t
AS
t
AS
2
m
s
OE setup time
t
OES
t
OES
2
m
s
CE setup time (to PGM
)
t
CES
t
CES
2
m
s
Input data setup time (to PGM
)
t
DS
t
DS
2
m
s
Address hold time (from OE
)
t
AHL
t
AHL
2
m
s
Input data hold time (from PGM
)
t
DH
t
DH
2
m
s
Data output float delay time from OE
t
DF
t
DF
0
250
ns
V
PP
setup time (to PGM
)
t
VPS
t
VPS
1.0
ms
V
DD
setup time (to PGM
)
t
VDS
t
VCS
1.0
ms
Program pulse width
t
PW
t
PW
0.095
0.1
0.105
ms
Valid data delay time from OE
t
OE
t
OE
1
m
s
OE hold time
t
OEH
2
m
s
Note
Corresponding
m
PD27C1001A symbol
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