AT49BV640DT 64Mbit,Flash存储器
| Density | 64M |
| Organization | 4M x 16 |
| Speed | 70 ns |
| Vcc (V) | 2.7-3.6 |
| Pb-Free Packages |
CBGA 48 (8x6) |
64-Mbit (4M x 16), 2.7-Volt Sectored Flash, Top Boot Block.
The AT49BV640D(T) is a 2.7-volt 64-megabit Flash memory organized as 4,194,304 words of 16 bits each. The memory is divided into 135 sectors for erase operations. The device is offered in 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 “Flexible Sector Protection” 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 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
AT49BV640DT 特性
- Single Voltage Operation Read/Write: 2.65V - 3.6V
- Access Time – 70 ns
- Sector Erase Architecture
– One Hundred Twenty-seven 32K Word (64K Bytes) Main Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout - Fast Word Program Time – 10 μs
- Typical Sector Erase Time: 32K Word Sectors – 700 ms; 4K Word Sectors – 100 ms
- Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming Data from Any Sector by Suspending Erase of a Different Sector
– Supports Reading Any Word by Suspending Programming of Any Other Word - Low-power Operation
– 10 mA Active
– 15 μA Standby - VPP Pin for Write Protection and Accelerated Program Operation
- WP Pin for Sector Protection
- RESET Input for Device Initialization
- Flexible Sector Protection
- Top or Bottom Boot Block Configuration Available
- 128-bit Protection Register
- Minimum 100,000 Erase Cycles
- Common Flash Interface (CFI)
- Green (Pb/Halide-free/RoHS Compliant) Packaging
AT49BV640DT 订购型号
| Devices | tACC (ns) |
ICC (mA) | Ordering Code | Package | Operation Range | |
| Active | Standby | |||||
| AT49BV640D | 70 | 15 | 0.025 | AT49BV640D-70CU | 48C20 | Industrial (-40° to 85° C) |
| AT49BV640DT | AT49BV640DT-70CU | 48C20 | ||||
AT49BV640DT 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AT49BV640DT 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
