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M95040-DRE Dataheets PDF



Part Number M95040-DRE
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description 4-Kbit serial SPI bus EEPROM
Datasheet M95040-DRE DatasheetM95040-DRE Datasheet (PDF)

M95040-DRE 4-Kbit serial SPI bus EEPROM - 105 °C Operation SO8 (MN) 150 mil width TSSOP8 (DW) 169 mil width WFDFPN8 (MF) DFN8 - 2 x 3 mm Datasheet - production data Features • Compatible with the Serial Peripheral Interface (SPI) bus • Memory array – 4 Kbit (512 bytes) of EEPROM – Page size: 16 bytes – Write protection by block: 1/4, 1/2 or whole memory – Additional Write lockable Page (Identification page) • Extended temperature and voltage range – Up to 105 °C (VCC from 1.7 V to 5.5 V) • Hi.

  M95040-DRE   M95040-DRE


Document
M95040-DRE 4-Kbit serial SPI bus EEPROM - 105 °C Operation SO8 (MN) 150 mil width TSSOP8 (DW) 169 mil width WFDFPN8 (MF) DFN8 - 2 x 3 mm Datasheet - production data Features • Compatible with the Serial Peripheral Interface (SPI) bus • Memory array – 4 Kbit (512 bytes) of EEPROM – Page size: 16 bytes – Write protection by block: 1/4, 1/2 or whole memory – Additional Write lockable Page (Identification page) • Extended temperature and voltage range – Up to 105 °C (VCC from 1.7 V to 5.5 V) • High speed clock frequency – 20 MHz for VCC ≥ 4.5 V – 10 MHz for VCC ≥ 2.5 V – 5 MHz for VCC ≥ 1.7 V • Schmitt trigger inputs for noise filtering • Short Write cycle time – Byte Write within 4 ms – Page Write within 4 ms • Write cycle endurance – 4 million Write cycles at 25 °C – 1.2 million Write cycles at 85 °C – 900 k Write cycles at 105 °C • Data retention – more than 50 years at 105 °C – 200 years at 55 °C • ESD Protection (Human Body Model) – 4000 V • Packages – RoHS-compliant and halogen-free (ECOPACK2®) April 2018 This is information on a product in full production. DS10889 Rev 3 1/39 www.st.com Contents Contents M95040-DRE 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 Serial Data output (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Serial Data input (D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Serial Clock (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 Chip Select (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Hold (HOLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 Write Protect (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.7 VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.8 VCC supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Operating features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 Active power and Standby power modes . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 SPI modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 Hold mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.4 Protocol control and data protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.4.1 Protocol control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.4.2 Status Register and data protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.5 Identification page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1 Write Enable (WREN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 Write Disable (WRDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3 Read Status Register (RDSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.4 Write Status Register (WRSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.5 Read from Memory Array (READ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.6 Write to Memory Array (WRITE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.7 Read Identification Page (RDID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.8 Write Identification Page (WRID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.9 Read Lock Status (RDLS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.10 Lock Identification Page (LID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2/39 DS10889 Rev 3 M95040-DRE Contents 5 Application design recommendations . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1 Supply voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1.1 Operating supply voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1.2 Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1.3 Power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.2 Implementing devices on SPI bus . . . . . . . . . . . . . . . . . . . . . .


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