(China (Mainland))
Product Summary
The AT45DB642D-CNU is a 2.7-volt, dual-interface sequential access Flash memory ideally suited for a wide variety of digital voice-, image-, program code- and data-storage applications. The AT45DB642D-CNU supports RapidS serial interface and Rapid8 8-bit interface. RapidS serial interface is SPI compatible for frequencies up to 66 MHz. The dual-interface allows a dedicated serial interface to be connected to a DSP and a dedicated 8-bit interface to be connected to a microcontroller or vice versa. However, the use of either interface is purely optional. Its 69,206,016 bits of memory are organized as 8,192 pages of 1,024 bytes (binary page size) or 1,056 bytes (standard DataFlash page size) each. In addition to the main memory, the AT45DB642D-CNU also contains two SRAM buffers of 1,024 (binary buffer size) bytes/1,056 bytes (standard DataFlash buffer size) each.
Parametrics
AT45DB642D-CNU absolute maximum ratings: (1)Temperature under Bias: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)All Input Voltages (including NC Pins) with Respect to Ground: -0.6V to +6.25V; (4)All Output Voltages with Respect to Ground: -0.6V to VCC + 0.6V.
Features
AT45DB642D-CNU features: (1)Single 2.7V - 3.6V Supply; (2)Dual-interface Architecture: RapidS Serial Interface: 66 MHz Maximum Clock Frequency SPI Compatible Modes 0 and 3, Rapid8 8-bit Interface: 50 MHz Maximum Clock Frequency; (3)User Configurable Page Size: 1024 Bytes per Page, 1056 Bytes per Page; (4)Page Program Operation: Intelligent Programming Operation, 8192 Pages (1024/1056 Bytes/Page) Main Memory; (5)Flexible Erase Options: Page Erase (1 Kbyte), Block Erase (8 Kbytes), Sector Erase (256 Kbytes), Chip Erase (64 Mbits).
Diagrams
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 AT45DB642D-CNU |
Atmel |
Flash 64M 8 I/O Pins Ser Rapid8 1056B 2.7V |
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AT452A |
NKK Switches |
Switch Hardware BLACK RECTANGULAR INSERT FOR MB20, SCB |
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AT452B |
NKK Switches |
Switch Hardware WHITE RECTANGULAR INSERT FOR MB20, SCB |
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AT452C |
NKK Switches |
Switch Hardware RED RECTANGLE INSERT |
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AT452F |
NKK Switches |
Switch Hardware GREEN RECTANGULAR INSERT FOR MB20, SCB |
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AT452G |
NKK Switches |
Switch Hardware BLUE RECTANGULAR INSERT FOR MB20, SCB |
Data Sheet |
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AT452H |
NKK Switches |
Switch Hardware GRAY RECTANGULAR INSERT FOR MB20, SCB |
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