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, 8.1 MHz, MICROCONTROLLER, PDIP52
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52
文件頁數(shù)： 6/148頁
文件大小： 1946K
代理商： M37274EFSP
102
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
RESET CIRCUIT
When the oscillation of a quartz-crystal oscillator or a ceramic reso-
nator is stable and the power source voltage is 5 V ± 10 %, hold the
______
RESET pin at LOW for 2
s or more, then return is to HIGH. Then, as
shown in Figure 106, reset is released and the program starts form
the address formed by using the content of address FFFF16 as the
high-order address and the content of the address FFFE16 as the
low-order address. The internal state of microcomputer at reset are
shown in Figures 5 to 9.
An example of the reset circuit is shown in Figure 105.
The reset input voltage must be kept 0.9 V or less until the power
source voltage surpasses 4.5 V.
Fig. 106. Reset Sequence
Fig. 105. Example of Reset Circuit
XIN
φ
RESET
Internal RESET
SYNC
Address
Data
32768 count of XIN
clock cycle (Note 3)
Reset address from the vector table
?
01, S
01, S-1 01, S-2
FFFE
FFFF
ADH,
ADL
?
ADL
ADH
Notes 1 :
2:
3:
f(XIN) and f( ) are in the relation : f(XIN) = 2f (
φ
).
A question mark (?) indicates an undefined state that
depends on the previous state.
Immediately after a reset, timer 3 and timer 4 are
connected by hardware. At this time, “FF 16” is set
in timer 3 and “07 16” is set to timer 4. Timer 3 counts down
with f(XIN)/16, and reset state is released by the timer 4
overflow signal.
Power source voltage 0 V
Reset input voltage 0 V
4.5 V
0.9 V
Poweron
26
30
27
Vcc
RESET
Vss
M37274EFSP
1
5
4
3
0.1
F
M51953AL
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標準包裝: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)
M37274MA 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-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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