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參數(shù)資料
| 型號(hào)： | M37548G1FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20 |
| 文件頁(yè)數(shù)： | 39/84頁(yè) |
| 文件大?。?/td> | 1427K |
| 代理商： | M37548G1FP |
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Rev.2.02
Mar 31, 2009
Page 44 of 81
REJ03B0210-0202
7548 Group
Power-on Reset Circuit
Reset can be automatically performed at power on (power-on
reset) by the built-in power-on reset circuit.
To use the built-in power-on reset circuit, leave the RESET pin
open (the pull-up resistor is built-in).
Low Voltage Detection Circuit
The built-in low voltage detection circuit is designed to detect a
drop in voltage and to reset the microcomputer if the power
source voltage drops below a set value (Typ.1.95 V).
The low voltage detection circuit is valid by setting “1” to bit 0
of the function set ROM data 0.
Also, when “1” is set to bit 2 of the function set ROM data 1, the
low voltage detection circuit can be valid even in the stop mode.
The low voltage detection circuit is stopped in the stop mode by
setting “0” to this bit, so that the power dissipation is reduced.
Fig 57. Operation waveform diagram of power-on
reset circuit
Fig 58. Operation waveform diagram of low voltage detection circuit
Fig 59. Timing diagram at reset
VCC (Note)
Power-on reset circuit output
Internal reset signal
Note: Keep the value of supply voltage to
the minimum value or more of the
recommended operating conditions.
Reset released
Reset
state
Power-on
VCC
Internal reset signal
Reset voltage (Typ:1.95 V)
Microcomputer starts operation
by the built-in on-chip oscillator.
?
FFFC
FFFD
ADH,ADL
?
ADL
ADH
Reset address from the
vector table
Low-speed on-chip
oscillator clock
Internal CPU clock
φ
?
RESET
Internal reset
signal
SYNC
Address
Data
9 to 16 cycles of
internal CPU clock
φ
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PDF描述 |
|---|---|
| M37548G2-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| M37640E8-XXXFP | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP80 |
| M37702S1ABFP | 16-BIT, 16 MHz, MICROCONTROLLER, PQFP80 |
| M37703E2BSP | 16-BIT, OTPROM, 25 MHz, MICROCONTROLLER, PDIP64 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37548G1-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G2FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G3FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G3FP#U0 | 功能描述:MCU 6K ROM 256K 20-SSOP 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:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:96KB（96K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 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:48-LQFP 包裝:托盤 其它名稱:568-9587 |
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