參數(shù)資料
型號: LC73101C
文件頁數(shù): 30/34頁
文件大?。?/td> 217K
代理商: LC73101C
AC Characteristics
System Bus Read/Write Characteristics (1) (Intel-type microcontrollers)
Figure 10
No. 6853-30/34
LC73101C
A0
t
AW8
t
DS8
t
AH8
t
DS8
t
ACC8
t
OH8
t
CCHR
,t
CCH
t
CCLR
,t
CCLW
t
CYC8
CS1
(CS2 = “1”)
WR, RD
D0 to D7
(Write)
D0 to D7
(Read)
Parameter
Signal
Symbol
Conditions
Ratings
Unit
min
max
Address hold time
A0
t
AH8
T
AW8
t
CYC8
t
CCLW
t
CCLR
t
CCHW
t
CCHR
t
DS8
t
DH8
t
ACC8
t
OH8
0
ns
Address setup time
0
System cycle time
A0
300
ns
Control low-level pulse width (WR)
WR
60
Control low-level pulse width (RD)
RD
120
ns
Control high-level pulse width (WR)
WR
60
Control high-level pulse width (RD)
RD
60
Data setup time
D0 to D7
40
ns
Address hold time
15
RD access time
D0 to D7
C
L
= 100 pF
140
ns
Output disable time
10
100
V
DD
= 2.7 to 3.6 V, Ta = –40 to 85°C
Parameter
Signal
Symbol
Conditions
Ratings
Unit
min
max
Address hold time
A0
t
AH8
T
AW8
t
CYC8
t
CCLW
t
CCLR
t
CCHW
t
CCHR
t
DS8
t
DH8
t
ACC8
t
OH8
0
ns
Address setup time
0
System cycle time
A0
1000
ns
Control low-level pulse width (WR)
WR
120
Control low-level pulse width (RD)
RD
240
ns
Control high-level pulse width (WR)
WR
120
Control high-level pulse width (RD)
RD
120
Data setup time
D0 to D7
80
ns
Address hold time
30
RD access time
D0 to D7
C
L
= 100 pF
280
ns
Output disable time
10
200
V
DD
= 1.8 to 2.7 V, Ta = –40 to 85°C
Notes: 1. The input signal rise and fall times (t
r
, t
f
) are stipulated to be under 15 ns. When using a short system cycle time for high-speed operation, these are
stipulated as follows: (t
r
+ t
f
)
(t
CYC8
- t
CCLW
- t
CCHW
) or (t
r
+ t
f
)
(t
CYC8
- t
CCLR
- t
CCHR
)
2. All timings are stipulated to be referenced to 20% and 80% of V
DD
.
3. t
CCLW
and t
CCLR
are stipulated to be the overlap time when CS1 is low (CS2 is high) and WR and RD are low.
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