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参数资料
| 型号： | AT49F002NT |
| 厂商： | Atmel Corp. |
| 英文描述： | LM4841 Boomer ® Audio Power Amplifier Series Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive; Package: TSSOP; No of Pins: 28 |
| 中文描述： | 2兆位256K × 8 5伏只有闪存的CMOS |
| 文件页数： | 6/20页 |
| 文件大小： | 213K |
| 代理商： | AT49F002NT |
6
3354F–FLASH–2/05
AT49F002A(N)(T)
4.7
Product Identification
The product identification mode identifies the device and manufacturer as Atmel. It may be
accessed by hardware or software operation. The hardware operation mode can be used by an
external programmer to identify the correct programming algorithm for the Atmel product.
For details, see Operating Modes (for hardware operation) or Software Product Identification.
The manufacturer and device code is the same for both modes.
4.8
DATA Polling
The AT49F002A(N)(T) features DATA polling to indicate the end of a program cycle. During a
program cycle an attempted read of the last byte loaded will result in the complement of the
loaded data on I/O7. Once the program cycle has been completed, true data is valid on all out-
puts and the next cycle may begin. DATA polling may begin at any time during the program
cycle.
4.9
Toggle Bit
In addition to DATA polling the AT49F002A(N)(T) provides another method for determining the
end of a program or erase cycle. During a program or erase operation, successive attempts to
read data from the device will result in I/O6 toggling between one and zero. Once the program
cycle has completed, I/O6 will stop toggling and valid data will be read. Examining the toggle bit
may begin at any time during a program cycle.
4.10
Hardware Data Protection
Hardware features protect against inadvertent programs to the AT49F002A(N)(T) in the
following ways: (a) V
CC
sense: if V
CC
is below 3.8V (typical), the program function is inhibited.
(b) Program inhibit: holding any one of OE low, CE high or WE high inhibits program cycles.
(c) Noise filter: pulses of less than 15 ns (typical) on the WE or CE inputs will not initiate a pro-
gram cycle.
相关PDF资料 |
PDF描述 |
|---|---|
| AT49F002NT-12JC | LM4842 Boomer ® Audio Power Amplifier Series Stereo 2W Amplifiers with DC Volume Control, Input MUX, Transient Free Outputs, and Cap-less Headphone Drive; Package: LLP; No of Pins: 28 |
| AT49F002NT-12JI | LM4842 Boomer ® Audio Power Amplifier Series Stereo 2W Amplifiers with DC Volume Control, Input MUX, Transient Free Outputs, and Cap-less Headphone Drive; Package: TSSOP EXP PAD; No of Pins: 28 |
| AT49F002NT-12PC | LM4842 Boomer ® Audio Power Amplifier Series Stereo 2W Amplifiers with DC Volume Control, Input MUX, Transient Free Outputs, and Cap-less Headphone Drive; Package: TSSOP; No of Pins: 28 |
| AT49F002NT-12PI | LM4843 ™BOOMER Stereo 2W Audio Power Amplifiers with DC Volume Control; Package: TSSOP EXP PAD; No of Pins: 20 |
| AT49F002NT-12TC | 2-Megabit 256K x 8 5-volt Only Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT49F002NT-12JC | 功能描述:闪存 256K x 8 (2M bit) RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AT49F002NT-12JI | 功能描述:IC FLASH 2MBIT 120NS 32PLCC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
| AT49F002NT-12PC | 功能描述:IC FLASH 2MBIT 120NS 32DIP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
| AT49F002NT-12PI | 功能描述:IC FLASH 2MBIT 120NS 32DIP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
| AT49F002NT-12TC | 功能描述:IC FLASH 2MBIT 120NS 32TSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
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