FM25C020ULZM8X
Fairchild Semiconductor
2.7V ~ 5.5V0°C ~ 70°C (TA)2.1 MHz
Ref. price$0.3300
Lead time on requestGet quote ›
onsemi FM25 Series
3 variants · onsemi
About the onsemi onsemi FM25 Series series
The onsemi onsemi FM25 Series series groups 3 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common memory format of EEPROM, memory interface of SPI and memory type of Non-Volatile. Variants differ by case, frequency and memory organization, so you can match the exact case your application requires using the selection guide below. All listed onsemi FM25 Series part numbers are active and orderable.
Select a variant by
- Case
- 8-DIP (0.300\", 7.62mm) · 8-SOIC (0.154\", 3.90mm Width)
- Frequency
- 1 MHz · 2.1 MHz
- Memory organization
- 256 x 8 · 512 x 8
- Memory size
- 2Kbit · 4Kbit
- Mounting type
- Surface Mount · Through Hole
- Operating temperature
- -40°C ~ 85°C (TA) · 0°C ~ 70°C (TA)
- Voltage
- 2.7V ~ 5.5V · 4.5V ~ 5.5V
- Write cycle time - word, page
- 10ms · 15ms
Variant comparison
| Parameter | FM25C020ULZM8X | FM25C040ULEN | FM25C040UM8 |
|---|---|---|---|
| Case | 8-SOIC (0.154\", 3.90mm Width) | 8-DIP (0.300\", 7.62mm) | 8-SOIC (0.154\", 3.90mm Width) |
| Frequency | 2.1 MHz | 1 MHz | 2.1 MHz |
| Memory organization | 256 x 8 | 512 x 8 | 512 x 8 |
| Memory size | 2Kbit | 4Kbit | 4Kbit |
| Mounting type | Surface Mount | Through Hole | Surface Mount |
| Operating temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| Voltage | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 4.5V ~ 5.5V |
| Write cycle time - word, page | 15ms | 15ms | 10ms |
Shared specifications
- Memory format
- EEPROM
- Memory interface
- SPI
- Memory type
- Non-Volatile
- Package
- Bulk
- Technology
- EEPROM
Request a quote on any onsemi FM25 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
Frequently asked questions
- How do the onsemi onsemi FM25 Series variants differ?
- onsemi FM25 Series part numbers differ by case, frequency, memory organization and memory size. Use the selection guide above to pick by case.
- How many onsemi onsemi FM25 Series part numbers are listed?
- 3 onsemi onsemi FM25 Series part numbers are listed, each with specifications and a datasheet where available.
- How do I get pricing and lead time for onsemi onsemi FM25 Series?
- Request a quote (RFQ) for any onsemi FM25 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.
