SA25C020 Datasheet, PDF (4/31 Pages) List of Unclassifed Manufacturers – 2Mb EEPROM with 25MHz SPI Bus Interface

List of Figures
Figure 1. SA25C020 Block Diagram................................ 5
Figure 2. SOIC 8 (150 mil)/PDIP/MLF Package
(Top View) ............................................................. 6
Figure 3. SA25C020 Ordering Information ...................... 7
Figure 4. SPI Mode 0 (0,0) Input Timing........................ 11
Figure 5. SPI Mode 0 (0,0) Output Timing ..................... 11
Figure 6. AC Measurements I/O Waveform................... 12
Figure 7. Supported SPI Modes .................................... 14
Figure 8. Hold Condition................................................ 15
Figure 9. SPI Serial Interface ........................................ 17
Figure 10. Read Status Register (RDSR) Instruction
Sequence ............................................................ 19
Figure 11. Write Enable (WREN) Instruction Sequence 20
Figure 12. Write Disable (WRDI) Instruction Sequence. 20
Figure 13. Write Status Register (WRSR) Instruction
Sequence ............................................................ 22
Figure 14. Read (READ) Instruction Sequence ............. 23
Figure 15. Byte or Page Write (PW) Instruction
Sequence ............................................................ 25
SA25C020 Advanced Information
SAIFUN
4
Figure 16. Read Electronic Signature (Read Id) Instruction
Sequence ............................................................ 26
Figure 17. 8-pin SOIC Package..................................... 28
Figure 18. 8-pin MLF Leadless Package ....................... 29
Figure 19. Molded Dual-in-line Package (N) Package
Number N08E...................................................... 30
List of Tables
Table 1. Pin Names......................................................... 6
Table 2. DC Characteristics............................................. 9
Table 3. AC Test Conditions.......................................... 10
Table 4. AC Measurements........................................... 12
Table 5. Instruction Set ................................................. 17
Table 6. Status Register Format.................................... 17
Table 7. Read Status Register Definition....................... 18
Table 8. Block Write Protect Bits................................... 21
Table 9. WPBEN Operation .......................................... 21
Table 10. Powerup ........................................................ 27