參數(shù)資料
型號： M37544
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機
文件頁數(shù)： 39/68頁
文件大?。?/td> 579K
代理商： M37544
7544 Group
Rev.1.04 2004.06.08 page 39 of 66
REJ03B0012-0104Z
Fig. 48 State transition
Stop mode
Wait mode
WIT
instruction
Oscillation stop detection circuit valid
CPUM
4
←
1
2
MISRG
1
¨1
2
Interrupt
Interrupt
STP
instruction
WIT
instruction
Interrupt
MISRG
1
←
0
2
CPUM
3
¨1
2
CPUM
3
←
0
2
CPUM
76
¨10
2
CPUM
76
¨00
2
01
2
11
2
(Note 2)
CPUM
4
¨0
2
MISRG
1
¨1
2
MISRG
1
¨0
2
Reset released
State 1
Operation clock source:
f(X
IN
) (Note 1)
f(X
IN
) oscillation enabled
On-chip oscillator stop
State 2
Operation clock source:
f(X
IN
) (Note 1)
f(X
IN
) oscillation enabled
On-chip oscillator enabled
State 3
Operation clock source:
On-chip oscillator (Note 3)
f(X
IN
) oscillation enabled
On-chip oscillator enabled
State 4
Operation clock source:
On-chip oscillator (Note 3)
f(X
IN
) oscillation stop
On-chip oscillator enabled
Notes on switch of clock
(1) In operation clock source = f(X
IN
), the following can be
selected for the CPU clock division ratio.
●
f(X
IN
)/2 (high-speed mode)
●
f(X
IN
)/8 (middle-speed mode)
●
f(X
IN
) (double-speed mode, only at a ceramic/quartz-crystal
oscillation)
(2) Execute the state transition state 3 to state 2 or
state 3’ to state 2’ after stabilizing X
IN
oscillation.
(3) In operation clock source = on-chip oscillator, the middle-
speed mode is selected for the CPU clock division ratio.
(4) When the state transition state 2
→
state 3
→
state 4
is performed, execute the NOP instruction as shown below
according to the division ratio of CPU clock.
CPUM76
→
10
2
(State 2
→
state 3)
NOP instruction
CPUM4
→
1
2
(State 3
→
state 4)
Double-speed mode at on-chip oscillator: NOP
3
High-speed mode at on-chip oscillator: NOP
1
Reset state
CPUM
76
¨10
2
CPUM
76
←
00
2
01
2
2
(Not11
State 2’
Operation clock source:
f(X
IN
) (Note 1)
f(X
IN
) oscillation enabled
On-chip oscillator enabled
State 3’
Operation clock source:
On-chip oscillator (Note 3)
f(X
IN
) oscillation enabled
On-chip oscillator enabled
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37544G2AGP 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 8KB ROM 5V 32LQFP - Trays
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M37544G2ASP#U0 功能描述:MCU 2/5V 8K 32-SDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
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M37544G2HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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