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| 型號(hào)： | M37542M4-XXXHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQCC36 |
| 封裝： | 6 X 6 MM, 0.50 MM PITCH, PLASTIC, WQFN-36 |
| 文件頁(yè)數(shù)： | 83/122頁(yè) |
| 文件大小： | 1311K |
| 代理商： | M37542M4-XXXHP |
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7542 Group
Rev.3.03
Jul 11, 2008
Page 63 of 117
REJ03B0006-0303
● On-chip oscillation division ratio
At on-chip oscillator mode, division ratio of on-chip oscillator for
CPU clock is selected by setting value of on-chip oscillation divi-
sion ratio selection register. The division ratio of on-chip oscillation
for CPU clock is selected from among 1/1, 1/2, 1/8, 1/128. The op-
eration clock for the peripheral function block is not changed by
setting value of this register.
■ Notes on On-chip Oscillation Division Ratio
When system is released from reset, ROSC/8 (on-chip oscillator
middle-speed mode) is selected for CPU clock.
When state transition from the ceramic or RC oscillation to on-
chip oscillator, ROSC/8 (on-chip oscillator middle-speed mode)
is selected for CPU clock.
When the MCU operates by on-chip oscillator for the main clock
without external oscillation circuit, connect XIN pin to VCC
through a resistor and leave XOUT pin open.
Set “10010x002” (x = 0 or 1) to CPUM.
Fig. 81 Structure of on-chip oscillation division ratio selection register
On-chip oscillation division ratio selection register
(RODR: address 003716, initial value: 0216)
On-chip oscillator division ratio
b1 b0
00: On-chip oscillator double-speed mode (ROSC/1)
01: On-chip oscillator high-speed mode (ROSC/2)
10: On-chip oscillator middle-speed mode (ROSC/8)
11: On-chip oscillator low-speed mode (ROSC/128)
Not used (returns “0” when read)
b7
b0
相關(guān)PDF資料 |
PDF描述 |
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| M37542M2-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO36 |
| M37542M2-XXXHP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQCC36 |
| M37542M2-XXXGP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 |
| M37542F4SP | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37542F8HP | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQCC36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37542M4-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37542RSS | 功能描述:DEV EMULATION EVA CHIP FOR M3754 RoHS:否 類別:編程器，開(kāi)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(yè)面:1429 (CN2011-ZH PDF) |
| M37544 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544G2AGP | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 8KB ROM 5V 32LQFP - Trays |
| M37544G2AGP#U0 | 功能描述:IC 740 MCU OTP 8K 32LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產(chǎn)品培訓(xùn)模塊:MCU Product Line Introduction AVR® UC3 Introduction 標(biāo)準(zhǔn)包裝:2,500 系列:AVR®32 UC3 B 核心處理器:AVR 芯體尺寸:32-位 速度:60MHz 連通性:I²C，IrDA，SPI，SSC，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，DMA，POR，PWM，WDT 輸入/輸出數(shù):28 程序存儲(chǔ)器容量:128KB（128K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:32K x 8 電壓 - 電源 (Vcc/Vdd):1.65 V ~ 1.95 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TQFP 包裝:帶卷 (TR) 配用:ATSTK600-TQFP48-ND - STK600 SOCKET/ADAPTER 48-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATEVK1101-ND - KIT DEV/EVAL FOR AVR32 AT32UC3B 其它名稱:AT32UC3B1128-AUR-NDAT32UC3B1128-AURTR |
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