參數(shù)資料
型號(hào): μPD78F0034Y
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù): 27/52頁(yè)
文件大?。?/td> 309K
代理商: ΜPD78F0034Y
m
PD78F0034Y
Preliminary Data Sheet
27
Parameter
Symbol
Test Conditions
MIN.
MAX.
Unit
ASTB high-level width
t
ASTH
0.5t
CY
ns
Address setup time
t
ADS
t
CY
– 40
ns
Address hold time
t
ADH
6
ns
Data input time from address
t
ADD1
(2 + 2n)t
CY
– 54
ns
t
ADD2
(3 + 2n)t
CY
– 60
ns
Address output time from RD
t
RDAD
0
100
ns
Data input time from RD
t
RDD1
(2 + 2n)t
CY
– 87
ns
t
RDD2
(3 + 2n)t
CY
– 93
ns
Read data hold time
t
RDH
0
ns
RD low-level width
t
RDL1
(1.5 + 2n)t
CY
– 33
ns
t
RDL2
(2.5 + 2n)t
CY
– 33
ns
WAIT
input time from RD
t
RDWT1
0.5t
CY
– 43
ns
t
RDWT2
t
CY
– 43
ns
WAIT
input time from WR
t
WRWT
0.5t
CY
– 25
ns
WAIT low-level width
t
WTL
(0.5 + 2n)t
CY
+ 10
(2 + 2n)t
CY
ns
Write data setup time
t
WDS
60
ns
Write data hold time
t
WDH
6
ns
WR low-level width
t
WRL1
(1.5 + 2n)t
CY
– 15
ns
RD
delay time from ASTB
t
ASTRD
6
ns
WR
delay time from ASTB
t
ASTWR
2t
CY
– 15
ns
ASTB
delay time from
RD
in external fetch
t
RDAST
0.8t
CY
– 15
1.2t
CY
ns
Address hold time from
RD
in external fetch
t
RDADH
0.8t
CY
– 15
1.2t
CY
+ 30
ns
Write data output time from RD
t
RDWD
40
ns
Write data output time from WR
t
WRWD
10
60
ns
Address hold time from WR
t
WRADH
0.8t
CY
– 15
1.2t
CY
+ 30
ns
RD
delay time from WAIT
t
WTRD
0.8t
CY
2.5t
CY
+ 25
ns
WR
delay time from WAIT
t
WTWR
0.8t
CY
2.5t
CY
+ 25
ns
(2) Read/Write Operation
(T
A
= –40 to + 85°C, V
DD
= 4.5 to 5.5 V) (1/2)
Remarks 1.
t
CY
= T
CY
/4
2.
n indicates the number of waits.
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