參數(shù)資料
型號(hào)： AT91M42800A-33CJ-999
廠商： Atmel
文件頁(yè)數(shù)： 3/27頁(yè)
文件大?。?/td> 0K
描述： IC MCU 32BIT RISC 144BGA
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，SPI，UART/USART
外圍設(shè)備： POR，WDT
輸入/輸出數(shù)： 54
程序存儲(chǔ)器類型： ROMless
RAM 容量： 8K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 144-LFBGA
包裝： 剪切帶 (CT)
其它名稱： AT91M42800A-33CJ-999CT
11
1779ES–ATARM–14-Apr-06
AT91M42800A
7.
Product Overview
7.1
Power Supply
The AT91M42800A has three 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
VDDCORE and VDDIO pins allow core power consumption to be reduced by supplying it with a
lower voltage than the I/O lines. The VDDCORE pins must never be powered at a voltage
greater than the supply voltage applied to the VDDIO.
The VDDPLL pin is used to supply the oscillator and both PLLs. The voltage applied on these
pins is typically 3.3V, and it must not be lower than VDDCORE.
Typical supported voltage combinations are shown in the following 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 AT91M42800A
microcontroller be held at valid logic levels to minimize the power consumption.
7.3
Operating Modes
The AT91M42800A has two pins dedicated to defining MODE0 and MODE1 operating modes.
These pins allow the user to enter the device in Boundary Scan mode. They also allow the user
to run the processor from the on-chip oscillator and from an external clock by bypassing the on-
chip oscillator. The last mode is reserved for test purposes. A chip reset must be performed
(NRST and NTRST) after MODE0 and/or MODE1 have been changed.
7.4
Clock Generator
The AT91M42800A microcontroller embeds a 32.768 kHz oscillator that generates the Slow
Clock (SLCK). This on-chip oscillator can be bypassed by setting the correct logical level on
MODE0 and MODE1 pins, as shown above. In this case, SLCK equals XIN.
Pins
Nominal Supply Voltages
VDDCORE
3.3V
3.0V or 3.3V
VDDIO
5.0V
3.0V or 3.3V
VDDPLL
3.3V
3.0V or 3.3V
MODE0
MODE1
Operating Mode
0
Normal operating mode by using the on-chip oscillator
0
1
Boundary Scan Mode
1
0
Normal operating mode by using an external clock on XIN
1
Reserved for test
相關(guān)PDF資料
PDF描述
VI-BTJ-IW-F2 CONVERTER MOD DC/DC 36V 100W
VI-BTH-IX-F3 CONVERTER MOD DC/DC 52V 75W
MAX1840EUB+ IC TRANS LEVEL SIM 10-UMAX
VI-BTH-IX-F2 CONVERTER MOD DC/DC 52V 75W
DS8023-RJX+ IC INTERFACE SMART CARD 28-TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT91M43300 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers
AT91M43300-12CC-1.8 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers
AT91M43300-12CI-1.8 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers
AT91M43300-25CC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers
AT91M43300-25CI 功能描述:IC ARM7 MCU 144 BGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:AT91 標(biāo)準(zhǔn)包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設(shè)備:POR，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（32K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*