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參數(shù)資料
| 型號： | M37274EFSP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, MICROCONTROLLER, PDIP52 |
| 封裝： | 0.600 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-52 |
| 文件頁數(shù)： | 67/147頁 |
| 文件大?。?/td> | 2042K |
| 代理商： | M37274EFSP |
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26
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274EFSP
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
paramentic
limits
are
subject
to change.
MITSUBISHI MICROCOMPUTERS
Internal clock : The serial I/O counter is set to “7” during the write
cycle into the serial I/O register (address 021416), and the transfer
clock goes “H” forcibly. At each falling edge of the transfer clock after
the write cycle, serial data is output from the SOUT pin. Transfer di-
rection can be selected by bit 5 of the serial I/O mode register. At
each rising edge of the transfer clock, data is input from the SIN pin
and data in the serial I/O register is shifted 1 bit.
After the transfer clock has counted 8 times, the serial I/O counter
becomes “0” and the transfer clock stops at HIGH. At this time the
interrupt request bit is set to “1.”
Fig. 20. Serial I/O Timing (for LSB first)
Synchronous clock
Transfer clock
Serial I/O register
write signal
Serial I/O output
SOUT
D0
D1
D2
D3
D4
D5
D6
D7
(Note)
Serial I/O input
SIN
Note : When an internal clock is selected, the S OUT pin is at high-impedance after transfer is completed.
Interrupt request bit is set to “1”
External clock : The an external clock is selected as the clock source,
the interrupt request is set to “1” after the transfer clock has been
counted 8 counts. However, transfer operation does not stop, so the
clock should be controlled externally. Use the external clock of 500kHz
or less with a duty cycle of 50%.
The serial I/O timing is shown in Figure 20. When using an external
clock for transfer, the external clock must be held at HIGH for initial-
izing the serial I/O counter. When switching between an internal clock
and an external clock, do not switch during transfer. Also, be sure to
initialize the serial I/O counter after switching.
Notes 1: On programming, note that the serial I/O counter is set by
writing to the serial I/O register with the bit managing in-
structions, such as SEB and CLB.
2: When an external clock is used as the synchronous clock,
write transmit data to the serial I/O register when the trans-
fer clock input level is HIGH.
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| M37274ERSS | 功能描述:EMULATION MCU/8BIT CMOS EMULATIO RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF) |
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| M37274MA-052SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-053SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37274MA-082SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
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