Rainbow Electronics AT45DB321D User Manual

Megabit 2.7-volt dataflash, Features, Description

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Table of contents

Document Outline

Features
1. Description
2. Pin Configurations and Pinouts
3. Block Diagram
4. Memory Array
5. Device Operation
6. Read Commands
- 6.1 Continuous Array Read (Legacy Command: E8H): Up to 66 MHz
- 6.2 Continuous Array Read (High Frequency Mode: 0BH): Up to 66 MHz
- 6.3 Continuous Array Read (Low Frequency Mode: 03H): Up to 33 MHz
- 6.4 Main Memory Page Read
- 6.5 Buffer Read
7. Program and Erase Commands
- 7.1 Buffer Write
- 7.2 Buffer to Main Memory Page Program with Built-in Erase
- 7.3 Buffer to Main Memory Page Program without Built-in Erase
- 7.4 Page Erase
- 7.5 Block Erase
- 7.6 Sector Erase
- 7.7 Chip Erase(1)
- 7.8 Main Memory Page Program Through Buffer
8. Sector Protection
- 8.1 Software Sector Protection
9. Hardware Controlled Protection
- 9.1 Sector Protection Register
10. Security Features
- 10.1 Sector Lockdown
  - 10.1.1 Sector Lockdown Register
  - 10.1.2 Reading the Sector Lockdown Register
- 10.2 Security Register
  - 10.2.1 Programming the Security Register
  - 10.2.2 Reading the Security Register
11. Additional Commands
- 11.1 Main Memory Page to Buffer Transfer
- 11.2 Main Memory Page to Buffer Compare
- 11.3 Auto Page Rewrite
- 11.4 Status Register Read
12. Deep Power-down
- 12.1 Resume from Deep Power-down
13. “Power of 2” Binary Page Size Option
- 13.1 Programming the Configuration Register
14. Manufacturer and Device ID Read
- 14.1 Manufacturer and Device ID Information
- 14.2 Operation Mode Summary
15. Command Tables
16. Power-on/Reset State
- 16.1 Initial Power-up/Reset Timing Restrictions
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 66 MHz)
- 21.2 Waveform 2 - SPI Mode 3 Compatible (for frequencies up to 66 MHz)
- 21.3 Waveform 3 - RapidS Mode 0 (FMAX = 66 MHz)
- 21.4 Waveform 4 - RapidS Mode 3 (FMAX = 66 MHz)
- 21.5 Utilizing the RapidS™ Function
- 21.6 Reset Timing
- 21.7 Command Sequence for Read/Write Operations for Page Size 512 Bytes (Except Status Register Read, Manufacturer and Device ID Read)
- 21.8 Command Sequence for Read/Write Operations for Page Size 528 Bytes (Except Status Register Read, Manufacturer and Device ID Read)
22. Write Operations
- 22.1 Buffer Write
- 22.2 Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
23. Read Operations
- 23.1 Main Memory Page Read
- 23.2 Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
- 23.3 Buffer Read
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
- 26.1 Ordering Code Detail
- 26.2 Green Package Options (Pb/Halide-free/RoHS Compliant)
27. Packaging Information
- 27.1 8M1-A - MLF (VDFN)
- 27.2 8MW - MLF (VDFN)
- 27.3 8S2 - EIAJ SOIC
- 27.4 28T - TSOP, Type 1
28. Revision History
29. Errata
- 29.1 Chip Erase

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