AT91SAM7S32-MU 32位ARM單片機(jī)QFN-48封裝

AT91SAM7S32-MU 描述

The AT91SAM7S32 is a low pincount Flash microcontroller based on the 32-bit ARM7TDMI RISC processor. It features 32K bytes of embedded high-speed Flash with sector lock capabilities and a security bit, and 8K bytes of SRAM. The integrated proprietary SAM-BA Boot Assistant enables in-system programming of the embedded Flash. Its extensive peripheral set includes USARTs, SPI, SSC, TWI and an 8-channel 10-bit ADC. Its Peripheral DMA Controller channels eliminate processor bottlenecks during peripheral-to-memory transfers. Its System Controller manages interrupts, clocks, power, time, debug and reset, significantly reducing the external chip count and minimizing power consumption. In industrial temperature, worse case conditions the maximum clock frequency is 55MHz. Typical core supply is 1.8V, I/Os are supplied at 1.8V or 3.3V and are 5V tolerant. An integrated Voltage Regulator permits single supply at 3.3V. The AT91SAM7S32 is supplied in a 64-lead LQFP or QFN Green package. It is supported by an Evaluation Board and extensive application development tools. The AT91SAM7S32 is a general-purpose microcontroller, providing an ideal migration path for 8-bit applications requiring additional performance and extended memory.

• 512KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S512
• 256KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S256
• 128KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S128
• 64KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S64
• 32KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S321
• 32KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S32
• 16KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S161
• 16KB 系統(tǒng)內(nèi)可編程Flash存儲(chǔ)器: AT91SAM7S16

AT91SAM7S32-MU 特點(diǎn)

1. 集成了ARM7TDMI? ARM? Thumb? 處理器
   –高性能的32位RISC架構(gòu)
   –高密度的16位指令集
   –性能/功耗(MIPS/Watt)的領(lǐng)先者
   –嵌入式ICE電路仿真，支持調(diào)試通訊
2. 32 K字節(jié)的片內(nèi)高速Flash存儲(chǔ)器，共256頁(yè)，每頁(yè)128字節(jié)
   –在最壞的條件下可以30 MHz的速度進(jìn)行單時(shí)鐘周期訪問(wèn),
   預(yù)取(Prefetch)緩沖器可以實(shí)現(xiàn)Thumb指令的優(yōu)化，使處理器以最快的速度執(zhí)行指令
   –頁(yè)編程時(shí)間為4 ms，包括頁(yè)自動(dòng)擦除，全片擦除時(shí)間為10 ms
   –10,000次的寫(xiě)壽命，10年數(shù)據(jù)保持能力，扇區(qū)鎖定功能，F(xiàn)lash安全鎖定位
3. 適合量產(chǎn)的快速Flash編程接口
4. 8 K字節(jié)的片內(nèi)高速SRAM，可以在最高時(shí)鐘速度下進(jìn)行單時(shí)鐘周期訪問(wèn)操作
5. 存儲(chǔ)器控制器(MC)
   –嵌入式Flash控制器，異常中斷(Abort)狀態(tài)及未對(duì)齊(Misalignment)檢測(cè)
6. 復(fù)位控制器 (RSTC)
   –上電復(fù)位和經(jīng)過(guò)工廠標(biāo)定的掉電檢測(cè)
   –提供復(fù)位源信息以及給外部電路使用的復(fù)位信號(hào)
7. 時(shí)鐘發(fā)生器(CKGR)
8. 低供耗RC振蕩器，3到20MHz的片上振蕩器和一個(gè)PLL
9. 電源管理控制器(PMC)
   –可以通過(guò)軟件進(jìn)行電源優(yōu)化，包括慢速時(shí)鐘模式(低至500 Hz)和空閑(Idle)模式
   –三個(gè)可編程的外部時(shí)鐘信號(hào)
10. 先進(jìn)的中斷控制器(AIC)
    –可以單獨(dú)屏蔽的、具有8個(gè)優(yōu)先級(jí)的向量式中斷源
    –兩個(gè)外部中斷源和一個(gè)快速中斷源，可以防止虛假(spurious)中斷
11. 調(diào)試單元(DBGU)
    –2線UART，支持調(diào)試通訊通道中斷;可通過(guò)程序來(lái)禁止通過(guò)ICE進(jìn)行訪問(wèn)
12. 周期性間隔定時(shí)器(PIT)
    –20位可編程的計(jì)數(shù)器，加上12位的間隔計(jì)數(shù)器
13. 時(shí)間窗看門(mén)狗(WDT)
    –12位受預(yù)設(shè)值（key）保護(hù)的可編程計(jì)數(shù)器
    –為系統(tǒng)提供復(fù)位或中斷信號(hào)
    –當(dāng)處理器處于調(diào)試狀態(tài)或空閑模式時(shí)可以停止計(jì)數(shù)器
14. 實(shí)時(shí)定時(shí)器(RTT)
    –32位自由運(yùn)行的具有報(bào)警功能的計(jì)數(shù)器
    –時(shí)鐘來(lái)源于片內(nèi)RC振蕩器
15. 一個(gè)并行輸入/輸出控制器(PIOA) )
    –21個(gè)可編程的復(fù)用I/O，每個(gè)I/O最多可以支持兩個(gè)外設(shè)功能
    –輸入電平改變時(shí)，每個(gè)I/O都可以產(chǎn)生中斷
    –可以獨(dú)立編程為開(kāi)漏輸出、使能上拉電阻以及同步輸出
16. 9個(gè)外設(shè)數(shù)據(jù)控制器(PDC)通道
17. 一個(gè)同步串行控制器(SSC)
    –每個(gè)接收器和發(fā)送器都具有獨(dú)立的時(shí)鐘和幀同步信號(hào)
    –支持I2S，支持時(shí)分多址
    –支持32位數(shù)據(jù)傳輸?shù)母咚龠B續(xù)數(shù)據(jù)流功能
18. 一個(gè)通用的同步/異步收發(fā)器(USART)
    –獨(dú)立的波特率發(fā)生器，IrDA紅外調(diào)制/解調(diào)
19. 支持ISO7816 T0/T1智能卡，硬件握手信號(hào)，支持RS485
20. 主/從串行外設(shè)接口(SPI)
    –8到16位可編程的數(shù)據(jù)長(zhǎng)度，4個(gè)片選線
21. 一個(gè)3通道的16位定時(shí)器/計(jì)數(shù)器(TC)
    –3個(gè)外部時(shí)鐘輸入端，每個(gè)通道有兩個(gè)多功能I/O引腳
    –倍速PWM發(fā)生功能，捕捉/波形模式，遞增/遞減計(jì)數(shù)
22. 一個(gè)4通道的16位PWM控制器(PWMC)
23. 一個(gè)兩線接口(TWI)
    –只支持主機(jī)模式，支持所有的Atmel兩線EEPROM

AT91SAM7S32-MU 訂購(gòu)型號(hào)

AT91SAM7S32-MU 技術(shù)支持

1. AT91SAM7S32數(shù)據(jù)手冊(cè)DataSheet 下載. PDF(簡(jiǎn)潔版)
2. AT91SAM7S32英文數(shù)據(jù)手冊(cè)DataSheet 下載. PDF(完整版)
3. ARM7TDMI 技術(shù)白皮書(shū)
4. AT91SAM 系列產(chǎn)品選型指南(Brochure, 2 pages, revision E, updated 2/09)
   Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors.
5. Atmel's ARM-based Microcontroller Excels in Real-Time (White Paper, 6 pages, revision A, updated 3/01)
   Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature.