Eon Silicon Solution Inc. Application Note EON EN25Q32A vs Atmel AT25DF321A Specification Comparison This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 1 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 1. INTRODUCTION The application note introduces how to implement a system design from Atmel AT25DF321A Flash to Eon EN25Q32A Flash. 2. GENERAL FUNCTION COMPARISON TABLE: 2.1 The following table highlights the major features of these two devices. Features Voltage Range EN25Q32A 2.7 ~ 3.6 8-pins SOP 200mil Except pin 7 = NC AT25DF321A 2.7 ~ 3.6 8S2 – EIAJ SOIC Except pin 7 = HOLD# 8-pins VDFN (5mm x 6mm) Except pin 7 = NC and Thickness A = 0.75mm (normal) 100MHz (standard mode) 80MHz @ dual & quad mode 8MA1 – UDFN (5mm x 6mm) Except pin 7 = HOLD# and Thickness A = 0.55mm (normal) 100MHz ( for RapidS) 85MHz for SPI Secured Silicon Sector Region 512 Byte 128 Byte Sector Architecture Uniform 1024 sectors of 4K byte 64 blocks of 64K byte Pin to Pin Compatible (standard SPI mode) SPI frequency SPI mode EQIO mode (Full Quad mode) RapidS Operation Mode 0 / Mode 3 Uniform 1024 sectors of 4K byte 128 blocks of 32K byte 64 blocks of 64K byte Mode 0 / Mode 3 Yes No No Yes Page program Sector erase 4K byte Block erase 32K Byte Block erase 64K byte Program and Erase Suspend / Resume Individual Sector Protection with Global Protect / Unprotect Read Sector Protection Registers Sector Lockdown Software Controlled Reset Minimum Endurance Cycle Yes Yes Yes Yes No Yes Yes Yes No Yes No Yes No Yes No Yes No Yes 100K 100K 16-pins SOP 300mil 8-pins SOP 200mil 8-pins VDFN (5mm x 6mm) 8-pins DIP 8S2 – EIAJ SOIC 8MA1 – UDFN (5mm x 6mm) Package Note: For general and dual SPI modes hold# on EN25Q32A is NC. This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 2 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 3. HARDWARE CONSIDERATIONS 3.1 ICC comparison EN25Q32A AT25DF321A Page Program (PP) ICC4 Max 25 @ 100MHz 20 @ 80MHz (dual) 28 Max 19 @ 100MHz 17 @ 85MHz 15 Sector Erase (SE) ICC6 25 18 mA Standby ICC1 20 50 μA Current Read ICC3 Unit mA mA 3.2 Pin Configuration (8-pin package) Pin number EN25Q32A CS# DO (DQ1) WP# (DQ2) VSS DI (DQ0) CLK NC (DQ3) VCC Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 AT25DF321A CS# SO (SOI) WP# GND SI (SIO) SCK HOLD# VCC Note: 1. If customers don’t use Hold# pin function on AT25DF321A, which can be replaced by EN25Q32A in standard SPI mode. 2. Eon EN25Q32A Flash can support the general standard / dual / quad SPI mode (Need specific SPI controller). 3. For general and dual SPI modes, Eon EN25Q32A Flash is the same as Atmel AT25DF321A Flash if customer don’t use the HOLD# pin function. 4. Atmel AT25DF321A doesn’t support quad SPI mode. 5. If customers will use the VDFN (UDFN) package, please take care the dimensions of thickness “A”. Part No SYMBOL A EN35Q32A (8 -VDFN) AT25DF321A (8-UDFN) DIMENSION IN MM DIMENSION IN MM MIN. NOR MAX MIN. NOR MAX 0.7 0.75 0.8 0.45 0.55 0.6 This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 3 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 4. SOFTWARE CONSIDERATIONS 4.1 Manufacturer, Memory Type & Device Identification (M7~M0: manufacture ID, D15~ID0: memory type, ID7~ID0: memory density) comparison. For EN25Q32A For AT25DF321A This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 4 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 4.2. Instruction Set Comparison 4.2.1 Different Block (Sector) Protection Area EN25Q32A： This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 5 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. AT25DF321A： This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 6 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 4.2.2 Different Status Register bit definition EN25Q32A： AT25DF321A： Status Register Format – Byte 1 This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 7 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. Status Register Format – Byte 2 Write Status Register Byte 1 Format Write Status Register Byte 2 Format This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 8 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 4.2.3 Secured OTP Addresses EN25Q32A: AT25DF321A: This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 9 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 4.2.4 The instructions comparison Instructions Command 38h EN25Q32A Yes AT25DF321A No FFh Yes No Write Enable 06h Yes Write Disable / Exit OTP mode 04h Yes Read Status Register 05h Yes Write Status Register 01h Yes Write Status Register Byte 2 31h No Yes Yes (only for Write Disable) Yes Yes (Write Status Register Byte 1) Yes Read Data 03h Yes Yes Fast Read 0Bh Yes Yes Read Array Dual Output Fast Read Dual I/O Fast Read 1Bh No Yes 3Bh Yes Yes BBh Yes No Quad I/O Fast Read EBh Yes No Page Program 02h Yes Yes Dual Input Byte/Page Program Sector Erase (4 KB) / OTP erase Block Erase ( 32 KB) A2h No 20h Yes 52h No Yes Yes (only for Sector Erase) Yes Block Erase ( 64 KB) D8h Yes Yes Chip Erase C7h / 60h Yes Yes EQIO (Full Quad Mode) RSTQIO (Reset Quad I/O) Program / Erase Suspend B0h No Yes Program / Erase Resume D0h No Yes Protect Sector 36h No Yes Unprotect Sector 39h No Yes Read Sector Protection Registers 3Ch No Yes Sector Lockdown 33h No Yes Freeze Sector Lockdown State 34h No Yes Read Sector Lockdown Registers 35h No Yes Program OTP Security Register 9Bh No Yes Read OTP Security Register 77h No Yes Reset F0h No Yes Deep Power-down Release from Deep Power-down, and read Device ID Release from Deep Power-down Manufacturer/ Device ID Read Identification B9h Yes Yes ABh Yes Yes 90h Yes No 9Fh Yes Yes 3Ah Yes No Enter OTP mode This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 10 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. 5. PERFORMANCE DIFFERENCES 5.1 ERASE AND PROGRAM PERFORMANCE The erasing and programming performance comparison. EN25Q32A Parameter AT25DF321A Typ Max Typ Max Unit Page Programming Time Sector / Block Erase Time (4KB size) Block Erase Time (32KB size) 1.3 5 1.0 3 ms 0.09 0.3 0.05 0.2 sec N/A N/A 0.25 0.6 sec Block Erase Time (64KB size) 0.5 2 0.4 0.95 sec 25 50 32 56 sec Chip (Bulk) Erase Time 5.2 KEY AC PARAMETER PERFORMANCE EN25Q32A AT25DF321A tCH (serial clock high time) Min @ 4ns Min @ 4.3ns tCL (serial clock low time) Min @ 4ns Min @ 4.3ns tCLCH (serial clock rise time) Min @ 0.1V / ns Min @ 0.1V / ns tCLCL (serial clock fall time) Min @ 0.1V / ns Min @ 0.1V / ns Min@ 5ns Min @ 5ns Parameter tCHSH (CS# active setup / hold time) tSHSL (CS# high time) Min, read @15ns Program/Erase @50ns Min @ 50ns tDSU (Data in setup time) Min @ 2ns Min @ 2ns tDH (Data in hold time) Min @ 5ns Min @ 1ns This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 11 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com Eon Silicon Solution Inc. Revisions List Revision No Description Date A 2010/02/25 Initial Release This Application Note may be revised by subsequent versions or modifications due to changes in technical specifications. 12 ©2005 Eon Silicon Solution Inc. Rev. A, Issue Date: 2010/ 02/25 www.eonssi.com