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M95040-DF

STMicroelectronics
Part Number M95040-DF
Manufacturer STMicroelectronics
Description SPI bus EEPROM
Published Mar 1, 2023
Detailed Description M950x0-W M950x0-R M950x0-DF Datasheet 4 Kbit, 2 Kbit and 1 Kbit serial SPI bus EEPROM with high-speed clock SO8N (150 m...
Datasheet PDF File M95040-DF PDF File

M95040-DF
M95040-DF

Overview
M950x0-W M950x0-R M950x0-DF Datasheet 4 Kbit, 2 Kbit and 1 Kbit serial SPI bus EEPROM with high-speed clock SO8N (150 mil width) TSSOP8 (169 mil width) UFDFPN8 (MC) DFN8 (2 x 3 mm) Product status link M95040-DF M95010-R M95020-R M95040-R M95010-W M95020-W M95040-W Features • Compatible with the serial peripheral interface (SPI) bus • Memory array – 1/2/4-Kbit (128/256/512 bytes) of EEPROM – Page size: 16 bytes – Additional write lockable page (Identification page) for M95040-DF order code • Write – Byte Write within 5 ms – Page Write within 5 ms • Write protect – quarter array – half array – whole memory array • Max clock frequency: 20 MHz • Single supply voltage: – 2.
5 V to 5.
5 V for M950x0-W – 1.
8 V to 5.
5 V for M950x0-R – 1.
7 V to 5.
5 V for M95040-DF • Operating temperature range: from -40 °C up to +85 °C • Enhanced ESD protection • More than 4 million write cycles • More than 200-year data retention • Packages RoHS-compliant and Halongen-free – SO8N (ECOPACK2) – TSSOP8 (ECOPACK2) – UFDFPN8 (ECOPACK2) DS1639 - Rev 14 - April 2022 For further information contact your local STMicroelectronics sales office.
www.
st.
com M950x0-W M950x0-R M950x0-DF Description 1 Description The M95010/M95020/M95040 devices (M950x0) are electrically erasable programmable memories (EEPROMs) organized as 128/256/512 x 8 bits respectively, accessed through the SPI bus.
The M950x0-W can operate with a supply voltage from 2.
5 V to 5.
5 V, the M950x0-R can operate with a supply voltage from 1.
8 V to 5.
5 V and the M950x0-DF can operate with a supply voltage from 1.
7 V to 5.
5 V, over an ambient temperature range of -40 °C / +85 °C The M950x0-DF offers an additional page, named the identification page (16 bytes).
The identification page can be used to store sensitive application parameters that can be (later) permanently locked in read-only mode.
Figure 1.
Logic diagram VCC D C S M95xxx Q W HOLD VSS The SPI bus signals are C, D and Q, as shown in Figure 1 and Table 1.
The device...


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