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| Part Number | AT49BV640DT-70CU | AT49BV640D-70CU | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Product Status | Obsolete | Obsolete | 
| Memory Type | Non-Volatile | Non-Volatile | 
| Memory Format | Flash | Flash | 
| Technology | Flash | Flash | 
| Memory Size | 64Mb (4M x 16) | 64Mb (4M x 16) | 
| Memory Interface | Parallel | Parallel | 
| Clock Frequency | - | - | 
| Write Cycle Time - Word, Page | 120µs | 120µs | 
| Access Time | 70 ns | 70 ns | 
| Voltage - Supply | 2.65V ~ 3.6V | 2.65V ~ 3.6V | 
| Operating Temperature | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 48-VFBGA, CSPBGA | 48-VFBGA, CSPBGA | 
| Supplier Device Package | 48-CBGA (7x10) | 48-CBGA (7x10) |