Product Overview
Selection Positioning
KDMR04MVSM is a 4Mb SPI/QPI MRAM non-volatile memory for frequent writes, power-loss retention and critical parameter storage.
Capacity4Mb
InterfaceStandard SPI / Quad SPI, SPI Mode 0 and Mode 3
FrequencyUp to 50MHz in SPI SDR or QPI SDR
Voltage RangeTypical 3.3V, VCC=2.7V to 3.6V
PowerSleep about 2uA, standby about 2mA, active about 4.3mA at 50MHz
PackageSOP8 150mil
Key Features
- Non-volatile retention without Flash erase delay suits logs, calibration parameters and state snapshots.
- Software protection bits BP0/BP1 are available; data retention exceeds 20 years at 85C.
Typical Applications
- Power-loss-safe parameter area, event records, industrial-control state retention, boot counters and runtime logs.
- When replacing EEPROM or Flash, confirm write frequency, power-loss strategy and interface mode.
Design-in Notes
- Confirm host processor, FPGA or SoC interface support, voltage rails and package footprint constraints.
- Before sample design-in, share schematic, PCB stack-up, clock/reset design, power sequencing and replacement part information.
- For replacement projects, provide the original part number, operating temperature, speed grade, package constraints and lifecycle requirement.
Selection Support
For platform compatibility, replacement review, temperature range, package constraints or document status, please submit the target platform, expected volume and project phase. Kangda sales and FAE teams can follow up with that context.