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參數(shù)資料
| 型號(hào)： | AT91M40800-33AI |
| 廠(chǎng)商： | Atmel |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ARM7 MCU 100 TQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | AT91 |
| 核心處理器： | ARM7 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 33MHz |
| 連通性： | EBI/EMI，UART/USART |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器類(lèi)型： | ROMless |
| RAM 容量： | 8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 3.6 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 100-LQFP |
| 包裝： | 托盤(pán) |
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5
1348FS–ATARM–13-Apr-06
AT91M40800
5.
Architectural Overview
The AT91M40800 microcontroller integrates an ARM7TDMI with Embedded ICE interface,
memories and peripherals. The architecture consists of two main buses, the Advanced System
Bus (ASB) and the Advanced Peripheral Bus (APB). Designed for maximum performance and
controlled by the memory controller, the ASB interfaces the ARM7TDMI processor with the on-
chip 32-bit memories, the External Bus Interface (EBI) and the AMBA
Bridge. The AMBA
Bridge drives the APB, which is designed for accesses to on-chip peripherals and optimized for
low power consumption.
The AT91M40800 microcontroller implements the ICE port of the ARM7TDMI processor on ded-
icated pins, offering a complete, low cost and easy-to-use debug solution for target debugging.
5.1
Memories
The AT91M40800 microcontroller embeds up to 8K bytes of internal SRAM. The internal mem-
ory is directly connected to the 32-bit data bus and is single-cycle accessible.
The AT91M40800 microcontroller features an External Bus Interface (EBI), which enables con-
nection of external memories and application-specific peripherals. The EBI supports 8- or 16-bit
devices and can use two 8-bit devices to emulate a single 16-bit device. The EBI implements the
early read protocol, enabling faster memory accesses than standard memory interfaces.
5.2
Peripherals
The AT91M40800 microcontrollers integrate several peripherals, which are classified as system
or user peripherals. All on-chip peripherals are 32-bit accessible by the AMBA Bridge, and can
be programmed with a minimum number of instructions. The peripheral register set is composed
of control, mode, data, status and enable/disable/status registers.
An on-chip Peripheral Data Controller (PDC) transfers data between the on-chip USARTs and
on- and off-chip memories address space without processor intervention. Most importantly, the
PDC removes the processor interrupt handling overhead, making it possible to transfer up to
64K contiguous bytes without reprogramming the start address, thus increasing the perfor-
mance of the microcontroller, and reducing the power consumption.
5.2.1
System Peripherals
The External Bus Interface (EBI) controls the external memory or peripheral devices via an 8- or
16-bit databus and is programmed through the APB. Each chip select line has its own program-
ming register.
The Power-saving (PS) module implements the Idle mode (ARM7TDMI core clock stopped until
the next interrupt) and enables the user to adapt the power consumption of the microcontroller to
application requirements (independent peripheral clock control).
The Advanced Interrupt Controller (AIC) controls the internal interrupt sources from the internal
peripherals and the four external interrupt lines (including the FIQ), to provide an interrupt and/or
fast interrupt request to the ARM7TDMI. It integrates an 8-level priority controller and, using the
Auto-vectoring feature, reduces the interrupt latency time.
The Parallel Input/Output Controller (PIO) controls up to 32 I/O lines. It enables the user to
select specific pins for on-chip peripheral input/output functions, and general-purpose input/out-
put signal pins. The PIO controller can be programmed to detect an interrupt on a signal change
from each line.
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| AT91M40800-33AI SL383 | 功能描述:IC ARM MCU 16BIT 100TQFP RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:AT91 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，LIN，SPI，UART/USART，USI 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:8KB（4K x 16） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:帶卷 (TR) |
| AT91M40800-33AI-T | 功能描述:IC MCU 32BIT ROMLESS 100LQFP 制造商:microchip technology 系列:AT91 包裝:帶卷（TR） 零件狀態(tài):停產(chǎn) 核心處理器:ARM7? 核心尺寸:16/32-位 速度:33MHz 連接性:EBI/EMI，UART/USART 外設(shè):POR，WDT I/O 數(shù):32 程序存儲(chǔ)容量:- 程序存儲(chǔ)器類(lèi)型:ROMless EEPROM 容量:- RAM 容量:8K x 8 電壓 - 電源（Vcc/Vdd）:1.8 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器類(lèi)型:外部 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:100-LQFP 供應(yīng)商器件封裝:100-LQFP（14x14） 基本零件編號(hào):AT91M40800 標(biāo)準(zhǔn)包裝:1,000 |
| AT91M40800-33AU | 功能描述:ARM微控制器 - MCU 8K SRAM Ext Bus Interface IND TEMP RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| AT91M40800-33AU-999 | 功能描述:ARM微控制器 - MCU Ind. Temp Green RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| AT91M40807 | 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
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