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參數(shù)資料
| 型號： | AT91F40816-33CI |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | ARM Thumb Microcontrollers |
| 中文描述： | 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PBGA120 |
| 封裝： | BGA-120 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大小： | 248K |
| 代理商： | AT91F40816-33CI |
12
AT91F40816
1348D–ATARM–03/04
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 returns the com-
plement 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 it 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 segmented into two memory planes. Reads from one memory
plane may be performed even while program or erase functions are being executed in
the other memory plane. This feature enhances performance by not requiring the sys-
tem to wait for a program or erase cycle to complete before a read may be performed.
The Flash memory is divided into 40 sectors for erase operations. To further enhance
device flexibility, an Erase Suspend feature is offered. This feature puts the erase cycle
on hold for an indefinite period and allows the user to read data from, or to write data to,
any other sector within the same memory plane. There is no need to suspend an erase
cycle if the data to be read is in the other memory plane. The device has the capability to
protect data stored in any sector. Once the data protection for a sector is enabled, the
data in that sector cannot be changed while input levels lie between ground and V
DD
.
An optional VPP pin is available to enhance the program/erase times. See the
AT49BV1604(T)/1614(T) “16 Mbits, 2.7-Volt Read and 2.7-Volt Byte-Write Sectored
Flash”
datasheet for further detail.
A 6-byte command sequence (Bypass Unlock) 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 dura-
tion
(1)
and then bringing it back to V
DD
.
The following hardware features protect against inadvertent programming of the Flash
memory.
V
DD
Sense – if V
DD
is below a certain level
(1)
, the program function is inhibited.
V
DD
Power-on Delay – once V
DD
has reached the V
DD
sense level, the device
automatically times out 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 do not
initiate a program cycle.
See the AT49BV1604(T)/1614(T) “16 Mbits, 2.7-Volt Read and 2.7-Volt Byte-Write Sec-
tored Flash”
datasheet for further details on Flash operation and electrical
characteristics.
Note:
1. Defined in the AT49BV1604 FLash Memory Datasheet
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT91FR40161 | ARM Thumb Microcontrollers |
| AT91FR40161-CI | ARM Thumb Microcontrollers |
| AT91FR40162-CI | AT91 ARM Thumb Microcontrollers |
| AT91FR40162 | AT91 ARM Thumb Microcontrollers |
| AT91FR4042 | AT91 ARM Thumb Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT91FR40161 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:ARM Thumb Microcontrollers |
| AT91FR40161-CI | 功能描述:IC MCU ARM7 2M FLASH 120-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(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 |
| AT91FR40162 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91FR40162_02 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91FR40162-CI | 功能描述:IC ARM7 MCU 2M FLASH 121 PBGA 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(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 |
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