參數(shù)資料
型號: M38001S8-XXXFP
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): 101/173頁
文件大?。?/td> 4203K
代理商: M38001S8-XXXFP
APPLICATION
2.4 Processor mode
2-53
3800 GROUP USER’S MANUAL
(2) Application example of memory expansion in the case where the
ONW
(One-Wait)
function is used
Outline
:
ONW
function is used when the external memory access is slow.
If “L” level signal is input to the P3
2
/
ONW
pin while the CPU is in the read or write status,
the read or write cycle corresponding to 1 cycle of
φ
is extended. In the extended period,
the
RD
or
WR
signal is kept at the “L” level. The
ONW
function operates only when data is
read from or written into addresses 0000
16
to 0007
16
and addresses 0440
16
to FFFF
16
.
Figure 2.4.7 shows an application example of the
ONW
function.
Fig. 2.4.7 Application example of the
ONW
function
3800 group
CNV
SS
AD
15
8
P5
8
P6
ONW
AD
14
AD
0
DB
0
DB
7
RD
WR
M5M27C256AK-10
M5M5256BP-10
CE
A
0
–A
14
D
0
–D
7
OE
A
0
–A
14
DQ
1
–DQ
8
OE
W
8MHz
V
CC
= 5.0V ± 10 %
External RAM area
(M5M5256BP)
SFR area
Internal RAM area
External RAM area
(M5M5256BP)
External ROM area
(M5M27C256AK)
0000
16
8000
16
0440
16
0040
16
0008
16
FFFF
16
Memory map
74F04
S
15
8
8
P4
2
P3
0
, P3
1
EPROM
SRAM
2
P7
相關(guān)PDF資料
PDF描述
M38001S8-XXXFS Excalibur JFET-Input High-Output-Drive uPower Operational Amplifier 8-SOIC 0 to 70
M38001S8-XXXHP 1 watt dc-dc converters
M38001S8-XXXSP 1 watt dc-dc converters
M38001S8-XXXSS Excalibur JFET-Input High-Output-Drive uPower Operational Amplifier 8-SOIC
M38002M1-XXXFP 1 watt dc-dc converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38001S8-XXXFS 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M38001S8-XXXHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M38001S8-XXXSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M38001S8-XXXSS 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M3800202-289SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER