AT49BV322DT 32Mbit,Flash存储器
| Density | 32M |
| Organization | 2M x 16 |
| Speed | 80 ns |
| Vcc (V) | 1.65-1.95 |
| Pb-Free Packages |
TSOP 48 CBGA 47(8x6) |
32 Mbit (2M x 16), 1.8 Volt, Sectored Flash, Single Plane, Top Boot.
The AT49SV322D(T) is a 1.8-volt 32-megabit Flash memory organized as 2,097,152 words of 16 bits each. The memory is divided into 71 sectors for erase operations. The device is offered in a 48-lead TSOP and a 48-ball CBGA package. The device has CE and OE control signals to avoid any bus contention. This device can be read or reprogrammed using a single power supply, making it ideally suited for in-system programming. The device powers on in the read mode. Command sequences are used to place the device in other operation modes such as program and erase. The device has the capability to protect the data in any sector (see “Sector Lockdown” on page 6). To increase the flexibility of the device, it contains an Erase Suspend and Program Suspend feature. This feature will put the erase or program on hold for any amount of time and let the user read data from or program data to any of the remaining sectors within the memory. The end of a program or an erase cycle is detected by the READY/BUSY pin, Data Polling or by the toggle bit. The VPP pin provides data protection. When the VPP input is below 0.4V, the program and erase functions are inhibited. When VPP is at 1.65V or above, normal program and erase operations can be performed. With VPP at 10.0V, the program (Dual-word Program command) operation is accelerated.A six-word command (Enter Single Pulse Program Mode) sequence to remove the requirement of entering the three-word program sequence is offered to further improve programming time. After entering the six-word code, only single pulses on the write control lines are required for writing into the device. This mode (Single Pulse Word Program) is exited by powering down the device, or by pulsing the RESET pin low for a minimum of 500 ns and then bringing it back to VCC. Erase, Erase Suspend/Resume and Program Suspend/Resume commands will not work while in this mode; if entered they will result in data being programmed into the device. It is not recommended that the six-word code reside in the software of the final product but only exist in external programming code.
AT49BV322DT 特性
- Single Voltage Read/Write Operation: 1.65V to 1.95V
- Access Time – 80 ns
- Sector Erase Architecture
– Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout - Fast Word Program Time – 10 μs
- Fast Sector Erase Time – 100 ms
- Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming from Any Sector by Suspending Erase of a Different Sector
– Supports Reading Any Word in the Non-suspending Sectors by Suspending
Programming of Any Other Word - Low-power Operation
– 10 mA Active
– 15 μA Standby - Data Polling, Toggle Bit, Ready/Busy for End of Program Detection
- VPP Pin for Write Protection and Accelerated Program Operation
- RESET Input for Device Initialization
- Sector Lockdown Support
- TSOP and CBGA Package Options
- Top or Bottom Boot Block Configuration Available
- 128-bit Protection Register
- Minimum 100,000 Erase Cycles
- Common Flash Interface (CFI)
AT49BV322DT 订购型号
| Devices | tACC (ns) |
ICC (mA) | Ordering Code | Package | Operation Range | |
| Active | Standby | |||||
| AT49SV322D | 80 | 15 | 0.025 | AT49SV322D-80CU AT49SV322D-80TU |
48C17 48T |
Industrial (-40° to 85° C) |
| AT49SV322DT | AT49SV322DT-80CU AT49SV322DT-80TU |
48C17 48T |
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AT49BV322DT 应用技术支持与电子电路设计开发资源下载
- ATMEL 爱特梅尔Flash 存储器AT49BV322DT 数据手册DataSheet 下载. PDF（PDF 文件格式完整版）
- 并行Flash 产品选型指南（
Excel 文档格式） - ATMEL 爱特梅尔公司全线产品目录. pdf