IC Resistive RAM 4Mbit 5Mhz 8-pin plastic SOP

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MB85AS4MT is a ReRAM (Resistive Random Access Memory) chip in a configuration of 524,288 words × 8 bits, using the resistance-variable memory process and silicon gate CMOS rocess technologies for forming the nonvolatile memory cells.

MB85AS4MT adopts the Serial Peripheral Interface (SPI).

MB85AS4MT is able to retain data without using a back-up battery, as is needed for SRAM. The memory cells used in the MB85AS4MT can be used for 1.2 × 106 rewrite operations.

Symmetry Electronics is an authorized Fujitsu Electronics distributor.


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Bit configuration : 4 Mbits (524,288 words 8 bits)
Serial Peripheral Interface : SPI (Serial Peripheral Interface)
Correspondent to SPI mode 0 (0, 0) and mode 3 (1, 1)
Write buffer size : 256 bytes
Operating frequency : 5 MHz (Max)
Data endurance : 1.2 106 times / byte
Data retention : 10 years (+85 C)
Operating power supply voltage : 1.65 V to 3.6 V
Operating power supply current : Rewrite current 1.3 mA (Typ)
Read-out current 0.2 mA (Typ@5 MHz)
Standby current 10 A (Typ)
Sleep current 2 A (Typ)
Operation ambient temperature range : -40 C to +85 C
Package : 8-pin plastic SOP (FPT-8P-M11)
RoHS compliant

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