M95040-DRDW3TP/K
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STMicroelectronics M95040-DRDW3TP/K

Manufacturer No:
M95040-DRDW3TP/K
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC EEPROM 4KBIT SPI 20MHZ 8TSSOP
Delivery:
Payment:
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Product Introduction

Overview

The M95040-DRDW3TP/K is an automotive-grade 4-Kbit serial EEPROM device produced by STMicroelectronics. It operates up to 145°C and is compliant with the high reliability automotive standard AEC-Q100 grade 0. This device is accessed through a simple serial SPI-compatible interface that can run up to 20 MHz. The memory array is based on advanced true EEPROM technology, organized as 32 pages of 16 bytes each, with an embedded Error Correction Code logic to improve data integrity. An additional identification page is available for storing device identification and sensitive application parameters, which can be permanently locked in read-only mode.

Key Specifications

Parameter Value
Memory Size 4 Kbit (512 bytes)
Memory Interface SPI (Serial Peripheral Interface)
Page Size 16 bytes
Write Protection Block protection: 1/4, 1/2, or whole memory
Identification Page 16 bytes (write-lockable)
Supply Voltage 1.7 V to 5.5 V (up to 125 °C), 2.5 V to 5.5 V (up to 145 °C)
Operating Temperature -40 °C to +125 °C, -40 °C to +145 °C
Clock Frequency Up to 20 MHz (VCC ≥ 4.5 V), 10 MHz (VCC ≥ 2.5 V), 5 MHz (VCC ≥ 1.7 V)
Write Cycle Time Byte and page write within 4 ms
Write Cycle Endurance 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, 600 k cycles at 125 °C, 400 k cycles at 145 °C
Data Retention 100 years at 25 °C, 50 years at 125 °C
ESD Protection 4000 V (Human Body Model)
Packages SO8N, TSSOP8, WFDFPN8 (ECOPACK2-compliant)

Key Features

  • Compatible with the Serial Peripheral Interface (SPI) bus
  • High-speed clock frequency up to 20 MHz
  • Schmitt trigger inputs for noise filtering
  • Short write cycle time: byte and page write within 4 ms
  • Write protection by block: 1/4, 1/2, or whole memory
  • Additional write-lockable identification page
  • Extended temperature and voltage ranges
  • ESD protection (Human Body Model): 4000 V
  • RoHS-compliant and halogen-free (ECOPACK2)
  • Data retention: 100 years at 25 °C, 50 years at 125 °C

Applications

The M95040-DRDW3TP/K is designed for use in automotive applications where high reliability and durability are critical. It is suitable for various automotive systems, including:

  • Engine control units
  • Transmission control units
  • Infotainment systems
  • Safety and security systems
  • Other automotive electronics requiring non-volatile memory

Q & A

  1. What is the memory size of the M95040-DRDW3TP/K?

    The memory size is 4 Kbit (512 bytes).

  2. What interface does the M95040-DRDW3TP/K use?

    The device uses the Serial Peripheral Interface (SPI) bus.

  3. What is the maximum operating temperature of the M95040-DRDW3TP/K?

    The device can operate up to 145 °C.

  4. What is the clock frequency range of the M95040-DRDW3TP/K?

    The clock frequency can be up to 20 MHz (VCC ≥ 4.5 V), 10 MHz (VCC ≥ 2.5 V), and 5 MHz (VCC ≥ 1.7 V).

  5. How long does a write cycle take for the M95040-DRDW3TP/K?

    Both byte and page writes take within 4 ms.

  6. What is the write cycle endurance of the M95040-DRDW3TP/K?

    The device can endure 4 million write cycles at 25 °C, 1.2 million cycles at 85 °C, 600 k cycles at 125 °C, and 400 k cycles at 145 °C.

  7. How long does the data retain in the M95040-DRDW3TP/K?

    The data retention is 100 years at 25 °C and 50 years at 125 °C.

  8. What kind of ESD protection does the M95040-DRDW3TP/K have?

    The device has ESD protection of 4000 V (Human Body Model).

  9. What packages are available for the M95040-DRDW3TP/K?

    The device is available in SO8N, TSSOP8, and WFDFPN8 packages, all of which are ECOPACK2-compliant.

  10. Is the M95040-DRDW3TP/K compliant with automotive standards?

    Yes, it is compliant with the AEC-Q100 grade 0 automotive standard.

  11. Can the identification page be write-locked?

    Yes, the identification page can be write-locked to store sensitive application parameters in read-only mode.

Product Attributes

Memory Type:Non-Volatile
Memory Format:EEPROM
Technology:EEPROM
Memory Size:4Kb (512 x 8)
Memory Interface:SPI
Clock Frequency:20 MHz
Write Cycle Time - Word, Page:4ms
Access Time:- 
Voltage - Supply:1.8V ~ 5.5V
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:8-TSSOP
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Similar Products

Part Number M95040-DRDW3TP/K M95080-DRDW3TP/K M95040-DRDW8TP/K M95020-DRDW3TP/K
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active Active
Memory Type Non-Volatile Non-Volatile Non-Volatile Non-Volatile
Memory Format EEPROM EEPROM EEPROM EEPROM
Technology EEPROM EEPROM EEPROM EEPROM
Memory Size 4Kb (512 x 8) 8Kb (1K x 8) 4Kb (512 x 8) 2Kb (256 x 8)
Memory Interface SPI SPI SPI SPI
Clock Frequency 20 MHz 20 MHz 20 MHz 20 MHz
Write Cycle Time - Word, Page 4ms 4ms 4ms 4ms
Access Time - - - -
Voltage - Supply 1.8V ~ 5.5V 1.8V ~ 5.5V 1.8V ~ 5.5V 1.8V ~ 5.5V
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 105°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 8-TSSOP 8-TSSOP 8-TSSOP 8-TSSOP

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