ST M25P20

Mfr. Part

M25P20

Manufacturer

STMicroelectronics

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Detailed Description

2 Mbit 256 K x 8 SPI serial Flash memory from the ST M25P family Designed for code and data storage in embedded systems Uses a simple SPI command set for easy integration 256 byte page program sector erase and bulk erase Hardware and software protection Low power and compact footprint Ideal when you need reliable nonvolatile memory with few pins

Key Features

Density 2 Mbit 256 KB

Interface SPI single IO supports SPI mode 0 and mode 3

Operating voltage 2.7 V to 3.6 V depending on ordering code

High speed serial clock up to tens of megahertz depending on voltage and grade

256 byte page program with page write buffer

Sector erase and full chip erase commands

Status and configuration registers with block write protection

Deep power down and electronic signature read

WP pin for hardware write protect and HOLD pin to pause serial access

Industrial temperature options available

Key Advantages

Very low pin count reduces wiring and PCB complexity

Small packages save board space

Low standby current supports battery powered designs

Mature command set shortens firmware development

Broad second source ecosystem ensures supply flexibility

Robust endurance and retention for long service life

Packaging

Type small outline 8 pin packages including SOIC 8 narrow and TSSOP 8 Some variants are also offered in 8 pin leadless MLP or WSON

Delivery format tape and reel or tube tray depending on suffix and order quantity

Material molded epoxy body with copper lead frame lead free RoHS compliant finish such as NiPdAu or matte tin

Size SOIC 8 narrow body about 4.9 x 3.9 x 1.5 mm TSSOP 8 about 3.0 x 4.4 x 1.0 mm WSON 8 about 6 x 5 x 0.8 mm Please check the package drawing in the datasheet for exact dimensions

Pin configuration 1 CS 2 DO MISO 3 WP 4 GND 5 DI MOSI 6 CLK 7 HOLD 8 VCC

Thermal characteristics operating temperature typically minus 40 to plus 85 C extended grades may exist Junction to ambient thermal resistance depends on package and PCB usually in the 100 to 200 C per W range

Electrical properties supply 2.7 V to 3.6 V logic compatible IO very low standby current in the microamp range active read current in the milliamp range at higher clock rates ESD protection to industry standards For exact limits and curves refer to the datasheet

Note the listing shows package case code 1057 which may be an internal code Please confirm the exact package suffix with our sales team so we ship the footprint you expect

Lifecycle

Status the M25P family is mature and certain M25P20 order codes are listed by the manufacturer as not recommended for new designs Newer ST families such as M25PE and M25PX are promoted for new designs

Direct or close alternatives verify command set pinout voltage and timing before drop in use

- STMicroelectronics M25PE20 2 Mbit 2.7 V to 3.6 V SPI Flash

- STMicroelectronics M25PX20 2 Mbit higher performance SPI Flash

- Winbond W25X20CL or W25Q20 series 2 Mbit SPI NOR Flash

- Macronix MX25L2006E or MX25L2005 2 Mbit SPI NOR Flash

- Microchip SST25VF020B 2 Mbit SPI NOR Flash

- Adesto Dialog AT25DF021A 2 Mbit SPI Flash

- GigaDevice GD25Q20 2 Mbit SPI NOR Flash

- Eon EN25F20 2 Mbit SPI Flash

If you need the confirmed lifecycle state or a vetted replacement for your exact suffix please contact our sales team through the Y-IC website and we will advise quickly

Key Application Areas

Boot code storage for microcontrollers and DSP

Configuration memory for FPGAs and CPLDs

Data logging and parameter storage in IoT sensors and gateways

Consumer electronics such as set top boxes smart appliances and wearables

PC peripherals printers routers and storage controllers

Industrial control automation and metering

Automotive modules when an appropriate grade is selected

Datasheet

Y-IC hosts the most authoritative datasheet and technical documents for M25P20 on this product page We strongly recommend downloading the datasheet here to confirm electrical limits timing diagrams package drawings and ordering codes

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