Application note Serial EEPROM product numbering This application note provides a detailed description of the part numbering scheme of Serial EEPROM products. The part numbering scheme consists of a maximum of 13 digits grouped into nine fields (A to H) as shown in Table 1: Serial EEPROM part numbering scheme on page 1<Blue>Table 1.. Fields A to C represent the product identifiers and fields D to H the product options. The - character is used to separate the identifiers from the options. Table 1. Serial EEPROM part numbering scheme Digit Field Use 1st A Product line ( M = memory) 2nd 3rd 4th 5th 6th B C Device type (Product family) Device function (Memory capacity) 7th - Dash, to separate the product number identifiers from the product option designators 8th D Operating range (V CC ) 9th 10th E Package type 11th F Device grade (Temperature range) 12th G Option 13th H Plating technology An additional / followed by two digits are used by ST to aid traceability, and might appear on some documents at the bottom of the Ordering information scheme table under Process. This information offers the die and technology references (for temperature range 3 devices) and can be ignored for temperature range 6 devices. Table 2. Product line code Field A, 1 st character, product line Product line type M Memory April 2008 Rev 3 1/5 www.st.com
Table 3. Field B, 2 nd and 3 rd characters, product family Family code Memory type Family 93 MICROWIRE 24 Non-volatile memory I 2 C 95 SPI 33 MICROWIRE 34 Application-specific memory Non-volatile memory I 2 C 35 SPI Table 4. Field C, 4 th, 5 th and 6 th characters, memory capacity Capacity Microwire (M93) I²C (M24) SPI (M95) 1 Kb C46 C01 010 2 Kb C56 C02 020 4 Kb C66 C04 040 8 Kb C76 C08 080 16 Kb C86 C16 160 32 Kb - C32 320 64 Kb - C64 640 128 Kb - 128-B 128 256 Kb - 256-B 256 512 Kb - 512 512 1 Mb - M01 M01 Table 5. Field D, 8 th character, V CC range Voltage range code Memory Voltage range Blank W R F Serial EEPROMs 4.5 V to 5.5 V 2.5 V to 5.5 V 1.8 V to 5.5 V 1.7 V to 5.5 V 2/5
Table 6. Field E, 9 th and 10 th characters, package (two letters used in every case) Package code Package type BN DW DS DL MN ML MW MB PSDIP8 standard TSSOP8 TSSOP8 3 3 mm (MSOP8) TSSOP14 SO8 narrow 0.150 mils SO14 SO8 wide 0.200 mils UFDFPN8 (MLP8) Table 7. Device grade Field F, 11 th character, temperature range 1 0 C to 70 C 3 Temperature range 40 C to +125 C, with a certified reliability flow tailored for the automotive industry 6 40 C to +85 C Table 8. Option code Field G, 12 th, packing option Option Blank T Table 9. Code P or G Standard packing Tape and reel packing Field H, 13 th, plating technology Plating technology ECOPACK (RoHS compliant) For complete details of the correct product number, and ordering codes, for a specific product, please contact your nearest ST sales office or distributor. 3/5
Revision history AN626 Revision history Table 10. Document revision history Date Revision Changes June-1998 1.0 First Issue. 22-Nov-2004 2.0 15th digit concerning Plating option added in Table 1: Serial EEPROM part numbering scheme. Tables 3, 5, 5, 6 updated and Table 9: Field H, 13 th, plating technology added. 25-Apr-2008 3 Document reformatted. All tables updated. 4/5
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