Key facts
- Brand
- STMicroelectronics
- Model
- M95640-R
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-09
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ST M95640 M95640-W M95640-R M95640-DR 64 Kbit serial SPI bus EEPROMs with high-speed clock handbook
The M95640, M95640-W, M95640-R and M95640-DR are 64 Kbit serial SPI bus EEPROMs with high-speed clock, which are produced by ST. The features of the product are: the memory array is 64 Kb (8 Kbytes) EEPROM, the page size is 32 bytes, it has Write lockable Page (Identification page), supports Byte Write within 5 ms and Page Write within 5 ms, supports Write Protect, the highest clock frequency is 20 MHz, the single supply voltage is 1.8 V to 5.5 V, supports 1 million Write cycles and 40-year data retention, and has Enhanced ESD Protection.
Read onlineSTMicroelectronics M95640-R specifications
| Capacity (M95320) | 32Kbit organized as 4096 x 8 bits |
|---|---|
| Capacity (M95640) | 64Kbit organized as 8192 x 8 bits |
| Clock Rate | 20MHz, 10MHz, 5MHz or 2MHz |
| Write Time | 5ms or 10ms |
| Data Retention | More than 40-Year |
| Erase/Write Cycles | More than 100000 or 1 million |
Source: ST M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S Data Sheet
All STMicroelectronics M95640-R documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- ST M95640 M95640-W M95640-R M95640-DR 64 Kbit serial SPI bus EEPROMs with high-speed clock handbook
- ST M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S Data Sheet 43 p
- ST M95320/M95320-W/M95320-R/M95320-S/M95640/M95640-W/M95640-R/M95640-S Manual 42 p
- STMICROELECTRONICS - M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S handbook 42 p
Questions answered in these manuals
What are the available clock rates for these EEPROMs?
The devices support clock rates of 20MHz, 10MHz, 5MHz, or 2MHz.
From: ST M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S Data Sheet
What is the write time for these devices?
The write time is either 5ms or 10ms depending on the specific configuration.
From: ST M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S Data Sheet
What supply voltage ranges are supported for the M95320 and M95640 EEPROMs?
They operate from 4.5 V to 5.5 V for the standard versions, with lower‑voltage options for the ‑W, ‑R, and ‑S variants.
From: ST M95320/M95320-W/M95320-R/M95320-S/M95640/M95640-W/M95640-R/M95640-S Manual
Which clock rates can be used with these EEPROM devices?
The devices support clock rates of 2 MHz, 5 MHz, 10 MHz, or 20 MHz.
From: ST M95320/M95320-W/M95320-R/M95320-S/M95640/M95640-W/M95640-R/M95640-S Manual
How many write/erase cycles can the devices endure?
They support more than 100 k cycles, or up to 1 M cycles depending on ordering options.
From: STMICROELECTRONICS - M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S handbook
What is the maximum data retention time specified?
Data retention is specified for more than 40 years.
From: STMICROELECTRONICS - M95320 M95320-W M95320-R M95320-S M95640 M95640-W M95640-R M95640-S handbook