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M37640E8FP View Datasheet(PDF) - Mitsumi
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M37640E8FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Mitsumi
M37640E8FP Datasheet PDF : 96 Pages
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Ver 1.4
MITSUBISHI MICROCOMPUTERS
7640 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Φ
AB15-AB8
AB7-AB0
RD, WR
SYNC
OUT
twh(
Φ
)
0.5Vcc
td(
Φ
- AH)
0.5Vcc
td(
Φ
- AL
)
0.5Vcc
t
c(
Φ
)
twl(
Φ
)
td(
Φ
-
WR
)
td(
Φ
-
RD
)
0.5Vcc
td(
Φ
-
SYNC
)
0.5Vcc
0.5Vcc
tv(
Φ
- AH)
tv(
Φ
- AL)
tv(
Φ
- WR)
tv(
Φ
- RD)
tv(
Φ
- SYNC)
DMA
OUT
RDY
HOLD
(Enter state)
HLDA
HOLD
(Exit state)
HLDA
td(
Φ
-
DMA
)
0.5Vcc
tsu(RDY -
Φ
)
0.8Vcc
0.2Vcc
_______
tsu(HOLD -
Φ
)
0.8Vcc
0.2Vcc
(n cycles of
Φ)
th(
Φ
- RDY)
_______
th(
Φ
- HOLD)
_______
tsu(HOLD -
Φ
)
0.8Vcc
0.2Vcc
_______
th(
Φ
- HOLD)
tv(
Φ
- DMA)
_______
td(
Φ
- HLDAL)
0.5Vcc
_______
td(
Φ
- HLDAH)
0.5Vcc
DB0-DB7
(CPU Read Phase)
DB0-DB7
(CPU Write Phase)
td(
Φ
- DB)
0.5Vcc
tsu(DB -
Φ
) th(
Φ
- DB)
0.8Vcc
0.2Vcc
tv(
Φ
- DB)
USB D+
USB D-
tf(
D+
)
tf(
D-
)
0.1VoH
Fig. 2.4. Microprocessor and Memory Expansion Mode Timing Diagram 1
88
tr(
D+
)
tr(
D-
)
0.9VoH
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