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參數(shù)資料
| 型號： | AT91FR4042-CI |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | AT91 ARM Thumb Microcontrollers |
| 中文描述： | 32-BIT, FLASH, 70 MHz, RISC MICROCONTROLLER, PBGA121 |
| 封裝： | 10 X 10 MM, 1.20 MM HEIGHT, BGA-121 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 195K |
| 代理商： | AT91FR4042-CI |
12
AT91FR4042
2648D–ATARM–03/04
During boot, the EBI must be configured with correct number of standard wait states. As
an example, five standard wait states are required when the microcontroller is running at
66 MHz.
The user must ensure that all VDDIO, VDDCORE and all GND pins are connected to
their respective supplies by the shortest route. The Flash memory powers-on in read
mode. Command sequences are used to place the device in other operating modes,
such as program and erase.
A separate Flash memory reset input pin (NRSTF) is provided for maximum flexibility,
enabling the reset operation to adapt to the application. When this input is at a logic high
level, the memory is in its standard operating mode; a low level on this input halts the
current memory operation and puts its outputs in a high impedance state.
The Flash memory features data polling to detect the end of a program cycle. While a
program cycle is in progress, an attempted read of the last word written will return the
complement of the written data on I/O7. An open-drain NBUSY output pin provides
another method of detecting the end of a program or erase cycle. This pin is pulled low
while program and erase cycles are in progress and is released at the completion of the
cycle. A toggle bit feature provides a third means of detecting the end of a program or
erase cycle.
The Flash memory is divided into 4 sectors for erase operations.
The device has the capability to protect data stored in the 8K words boot block sector.
Once the data protection for this sector is enabled, the data in the sector cannot be
changed while input levels lie between ground and V
DDIO
. The address range of the boot
block is 00000h to 01FFFh
The user can override the boot block programing lockout by applying a 12 V input signal
to the RESET pin while performing a chip erase, sector erase or word programing
operation.
A 4-byte command sequence (Enter Single Pulse Program Mode) allows the device to
be written to directly, using single pulses on the write control lines. This mode (Single-
pulse Programming) is exited by powering down the device or by pulsing the NRSTF pin
low for a certain duration
(1)
and then bringing it back to V
DDIO
.
The following hardware features protect against inadvertent programming of the Flash
memory:
V
DDIO
Sense – if V
DDIO
is below a certain level
(1)
, the program function is inhibited.
V
DDIO
Power-on Delay – once V
DDIO
has reached the V
DDIO
sense level, the device
will automatically time out for a certain duration
(1)
before programming.
Program Inhibit – holding any one of OE low, CE high or WE high inhibits program
cycles.
Noise Filter – pulses of less than a certain duration
(1)
on the WE or CE inputs will not
initiate a program cycle.
See the AT49BV4096A 4-megabit (256K x 16/512K x 8) Single 2.7 volt Flash Memory
Datasheet for further details on Flash operation and electrical characteristics.
Note:
1. Defined in the AT49BV4096A Flash Memory Datasheet, Atmel lit° 1618.
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| AT91FR4081 | AT91 ARM Thumb Microcontrollers |
| AT91FR4081-33CI | AT91 ARM Thumb Microcontrollers |
| AT91M40008 | Incorporates the ARM7TDMI⑩ ARM?? Thumb?? Processor Core |
| AT91M40100 | ARM THUMB - Based Microcontroller(基于ARM THUMB的微控制器) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT91FR4042-CI SL383 | 功能描述:IC ARM MCU 512FLASH 16BIT 121BGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:AT91 標準包裝: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 外圍設備:欠壓檢測/復位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB（4K x 16） 程序存儲器類型: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) |
| AT91FR4042-CI-T | 功能描述:IC MCU 32BIT 512KB FLASH 121BGA 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:75MHz 連接性:EBI/EMI，UART/USART 外設:WDT I/O 數(shù):32 程序存儲容量:512KB（256K x 16） 程序存儲器類型:閃存 EEPROM 容量:- RAM 容量:256K x 8 電壓 - 電源（Vcc/Vdd）:1.65 V ~ 1.95 V 數(shù)據(jù)轉換器:- 振蕩器類型:外部 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:121-TFBGA 供應商器件封裝:121-BGA（10x10） 基本零件編號:AT91FR4042 標準包裝:1,000 |
| AT91FR4081 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91FR4081-33CI | 功能描述:IC ARM7 MCU 1M FLASH 120 BGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:AT91 標準包裝: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 外圍設備:POR，WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB（32K x 8） 程序存儲器類型: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 |
| AT91FR4081-40CI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
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