參數(shù)資料
型號： M38004M2-XXXSS
廠商： Mitsubishi Electric Corporation
元件分類： DC/DC變換器
英文描述： 1 watt dc-dc converters
中文描述： 1瓦的DC - DC轉(zhuǎn)換器
文件頁數(shù)： 113/173頁
文件大小： 4203K
代理商： M38004M2-XXXSS
3-11
3800 GROUP USER’S MANUAL
APPENDIX
3.1 Electrical characteristics
Table 3.1.17 Timing requirements in memory expansion mode and microprocessor mode
(Extended operating temperature version)
(V
CC
= 4.0 to 5.5 V, V
SS =
0 V, T
a
= –40 to 85
°
C, unless otherwise noted)
Table 3.1.18 Switching characteristics in memory expansion mode and microprocessor mode
(Extended operating temperature version)
(V
CC
= 4.0 to 5.5 V, V
SS =
0 V, T
a
= –40 to 85
°
C, unless otherwise noted)
Before
φ
ONW input set up time
After
φ
ONW input hold time
Before
φ
data bus set up time
After
φ
data bus hold time
Before RD ONW input set up time
Before WR ONW input set up time
After RD ONW input hold time
After WR ONW input hold time
Before RD data bus set up time
After RD data bus hold time
t
su(ONW–
φ
)
t
h(
φ
–ONW)
t
su(DB–
φ
)
t
h(
φ
–DB)
t
su
(
ONW
–RD)
t
su
(
ONW
–WR)
t
h(
RD
–ONW)
t
h(
WR
–ONW)
t
su(DB–
RD
)
t
h(
RD
–DB)
Symbol
Parameter
Limits
Typ.
Min.
–20
–20
60
ns
ns
ns
ns
ns
ns
ns
ns
Unit
0
–20
–20
65
0
Max.
φ
clock cycle time
φ
clock “H” pulse width
φ
clock “L” pulse width
After
φ
AD
15
–AD
8
delay time
After
φ
AD
15
–AD
8
valid time
After
φ
AD
7
–AD
0
delay time
After
φ
AD
7
–AD
0
valid time
SYNC delay time
SYNC valid time
RD and WR delay time
RD and WR valid time
After
φ
data bus delay time
After
φ
data bus valid time
RD pulse width, WR pulse width
RD pulse width, WR pulse width
(When one-wait is valid)
After AD
15
–AD
8
RD delay time
After AD
15
–AD
8
WR delay time
After AD
7
–AD
0
RD delay time
After AD
7
–AD
0
WR delay time
After RD AD
15
–AD
8
valid time
After WR AD
15
–AD
8
valid time
After RD AD
7
–AD
0
valid time
After WR AD
7
–AD
0
valid time
After WR data bus delay time
After WR data bus valid time
RESET
OUT
output delay time
RESET
OUT
output valid time (Note)
40
45
20
10
70
65
200
200
Symbol
Parameter
Limits
Typ.
Min.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
t
c(X
IN
)
–10
t
c(X
IN
)
–10
6
6
3
15
t
c(X
IN
)
–10
3t
c(X
IN
)
–10
t
c(X
IN
)
–35
t
c(X
IN
)
–40
0
0
10
0
2t
c(X
IN
)
20
10
25
10
20
10
10
5
20
t
c(X
IN
)
–15
t
c(X
IN
)
–20
5
5
15
Max.
Test conditions
Note :
The RESET
OUT
output goes “H” in sync with the fall of the
φ
clock that is anywhere between about 8 cycle and 13 cycles after
the RESET input goes “H”.
Fig. 3.1.1
t
c(
φ
)
t
wH(
φ
)
t
wL(
φ
)
t
d(
φ
–AH)
t
v(
φ
–AH)
t
d(
φ
–AL)
t
v(
φ
–AL)
t
d(
φ
–SYNC)
t
v(
φ
–SYNC)
t
d(
φ
–WR)
t
v(
φ
–WR)
t
d(
φ
–DB)
t
v(
φ
–DB)
t
wL(RD)
t
wL(WR)
t
d(AH–RD)
t
d(AH–WR)
t
d(AL–RD)
t
d(AL–WR)
t
v(RD–AH)
t
v(WR–AH)
t
v(RD–AL)
t
v(WR–AL)
t
d(WR–DB)
t
v(WR–DB)
t
d
(RESET–RESET
OUT
)
t
v(
φ
–RESET)
Fig. 3.1.1 Circuit for measuring output switching
characteristics
Measurement output pin
100pF
CMOS output
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