User guide
Table Of Contents
- Features
- 1. Description
- 2. Pin Configurations and Pinouts
- 3. Block Diagram
- 4. Memory Array
- 5. Device Operation
- 6. Read Commands
- 7. Program and Erase Commands
- 8. Sector Protection
- 9. Hardware Controlled Protection
- 10. Security Features
- 11. Additional Commands
- 12. Deep Power-down
- 13. “Power of 2” Binary Page Size Option
- 14. Manufacturer and Device ID Read
- 15. Command Tables
- 16. Power-on/Reset State
- 17. System Considerations
- 18. Electrical Specifications
- 19. Input Test Waveforms and Measurement Levels
- 20. Output Test Load
- 21. AC Waveforms
- 21.1 Waveform 1 – SPI Mode 0 Compatible (for Frequencies up to 66MHz)
- 21.2 Waveform 2 – SPI Mode 3 Compatible (for Frequencies up to 66MHz)
- 21.3 Waveform 3 – RapidS Mode 0 (FMAX = 66MHz)
- 21.4 Waveform 4 – RapidS Mode 3 (FMAX = 66MHz)
- 21.5 Utilizing the RapidS Function
- 21.6 Reset Timing
- 21.7 Command Sequence for Read/Write Operations for Page Size 256-Bytes (Except Status Register Read, Manufacturer and Device ID Read)
- 21.8 Command Sequence for Read/Write Operations for Page Size 264-Bytes (Except Status Register Read, Manufacturer and Device ID Read)
- 22. Write Operations
- 23. Read Operations
- 24. Detailed Bit-level Read Waveform – RapidS Serial Interface Mode 0/Mode 3
- 24.1 Continuous Array Read (Legacy Opcode E8H)
- 24.2 Continuous Array Read (Opcode 0BH)
- 24.3 Continuous Array Read (Low Frequency: Opcode 03H)
- 24.4 Main Memory Page Read (Opcode: D2H)
- 24.5 Buffer Read (Opcode D4H or D6H)
- 24.6 Buffer Read (Low Frequency: Opcode D1H or D3H)
- 24.7 Read Sector Protection Register (Opcode 32H)
- 24.8 Read Sector Lockdown Register (Opcode 35H)
- 24.9 Read Security Register (Opcode 77H)
- 24.10 Status Register Read (Opcode D7H)
- 24.11 Manufacturer and Device Read (Opcode 9FH)
- 25. Auto Page Rewrite Flowchart
- 26. Ordering Information
- 27. Packaging Information
- 28. Revision History
- 29. Errata
42
3596N–DFLASH–11/2012
AT45DB081D
24.3 Continuous Array Read (Low Frequency: Opcode 03H)
24.4 Main Memory Page Read (Opcode: D2H)
24.5 Buffer Read (Opcode D4H or D6H)
SCK
CS
SI
SO
MSB MSB
2310
00000011
675410119812 373833 36353431 3229 30 39 40
OPCODE
AAAA AAAAA
MSB MSB
DDDDDDDDDD
ADDRESS BITS A19-A0
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB MSB
2310
11010010
675410119812 63666765646233 3431 3229 30 68 71 727069
OPCODE
AAAA AAAAA
MSB
XXXX XX
MSB MSB
DDDDDDDDDD
ADDRESS BITS 32 DON'T CARE BITS
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB MSB
2 3 1 0
1 1 0 1 0 1 0 0
6 7 5 4 10 11 9 8 12 39 42 43 41 40 37 38 33 36 35 34 31 32 29 30 44 47 48 46 45
OPCODE
X X X X A A A X X
MSB
X X X X X X X X
MSB MSB
D D D D D D D D D D
ADDRESS BITS
BINARY PAGE SIZE = 16 DON'T CARE + BFA7-BFA0
STANDARD DATAFLASH PAGE SIZE =
15 DON'T CARE + BFA8-BFA0
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE