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| 型号： | AT91M55800A-33CJ-999 |
| 厂商： | Atmel |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC MCU 32BIT RISC 176LFBGA |
| 标准包装： | 1 |
| 系列： | AT91 |
| 核心处理器： | ARM7 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 33MHz |
| 连通性： | EBI/EMI，SPI，UART/USART |
| 外围设备： | POR，WDT |
| 输入/输出数： | 58 |
| 程序存储器类型： | ROMless |
| RAM 容量： | 8K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 数据转换器： | A/D 8x10b; D/A 2x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 176-LFBGA |
| 包装： | 剪切带 (CT) |
| 其它名称： | AT91M55800A-33CJ-999CT |
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1745FS–ATARM–18-Apr-06
AT91M55800A Summary
7.
Product Overview
7.1
Power Supplies
The AT91M55800A has 5 kinds of power supply pins:
VDDCORE pins, which power the chip core
VDDIO pins, which power the I/O Lines
VDDPLL pins, which power the oscillator and PLL cells
VDDA pins, which power the analog peripherals ADC and DAC
VDDBU pins, which power the RTC, the 32768 Hz oscillator and the Shut-down Logic of
the APMC
VDDIO and VDDCORE are separated to permit the I/O lines to be powered with 5V, thus
resulting in full TTL compliance.
The following ground pins are provided:
GND for both VDDCORE and VDDIO
GNDPLL for VDDPLL
GNDA for VDDA
GNDBU for VDDBU
All of these ground pins must be connected to the same voltage (generally the board electric
ground) with wires as short as possible. GNDPLL, GNDA and GNDBU are provided sepa-
rately in order to allow the user to add a decoupling capacitor directly between the power and
ground pads. In the same way, the PLL filter resistor and capacitors must be connected to the
device and to GNDBU with wires as short as possible. Also, the external load capacitances of
the main oscillator crystal and the 32768 Hz crystal must be connected respectively to GND-
PLL and to GNDBU with wires as short as possible.
The main constraints applying to the different voltages of the device are:
VDDBU must be lower than or equal to VDDCORE
VDDA must be higher than or equal to VDDCORE
VDDCORE must be lower than or equal to VDDIO
The nominal power combinations supported by the AT91M55800A are described in the follow-
ing table:
7.2
Input/Output Considerations
After the reset, the peripheral I/Os are initialized as inputs to provide the user with maximum
flexibility. It is recommended that in any application phase, the inputs to the AT91M55800A
microcontroller be held at valid logic levels to minimize the power consumption.
Table 7-1.
Nominal Power Combinations
VDDIO
VDDCORE
VDDA
VDDPLL
VDDBU
Maximum Operating
Frequency
3V
33 MHz
3.3V
33 MHz
5V
3.3V
33 MHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT91M55800A-33CJ-T | 功能描述:IC MCU 32BIT ROMLESS 176LFBGA 制造商:microchip technology 系列:AT91 包装:带卷（TR） 零件状态:停產 核心处理器:ARM7? 核心尺寸:16/32-位 速度:33MHz 连接性:EBI/EMI，SPI，UART/USART 外设:POR，WDT I/O 数:58 程序存储容量:- 程序存储器类型:ROMless EEPROM 容量:- RAM 容量:8K x 8 电压 - 电源（Vcc/Vdd）:2.7 V ~ 3.6 V 数据转换器:A/D 8x10b；D/A 2x10b 振荡器类型:内部 工作温度:-40°C ~ 85°C（TA） 封装/外壳:176-LFBGA 供应商器件封装:176-LFBGA（11.2x11.2） 基本零件编号:AT91M55800 标准包装:1,000 |
| AT91M63200 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91M63200_99 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91M63200-12AI-1.8 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers |
| AT91M63200-25AC | 功能描述:IC MCU 32BIT ROMLESS 176TQFP 制造商:microchip technology 系列:AT91SAM 包装:托盘 零件状态:停產 核心处理器:ARM7? 核心尺寸:16/32-位 速度:25MHz 连接性:EBI/EMI，SPI，UART/USART 外设:POR，WDT I/O 数:58 程序存储容量:- 程序存储器类型:ROMless EEPROM 容量:- RAM 容量:2K x 8 电压 - 电源（Vcc/Vdd）:1.8 V ~ 3.6 V 数据转换器:- 振荡器类型:外部 工作温度:0°C ~ 70°C 封装/外壳:176-LQFP 供应商器件封装:176-TQFP（24x24） 基本零件编号:AT91M63200 标准包装:40 |
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