MB85RS256B/128B/64/64V/64VY/16/16N FeRAM Chips

RAMXEED MB85RS256B/128B/64/64V/64VY/16/16N Ferroelectric Random Access Memory (FeRAM) Chips support a wide range of capacities, from 16Kbit to 256Kbit. These chips are configured with 2,048 to 8192 words x 8bits, using ferroelectric process and silicon-gate CMOS process technologies to form the nonvolatile memory cells. The FeRAM chips feature a Serial Peripheral Interface (SPI) and 1012 read/write cycle endurance. These chips can retain data without a backup battery, unlike SRAM. The FeRAM chips operate at 20MHz or 33MHz, with power supply voltages ranging from 2.7V to 3.6V and 3V to 5.5V. These chips are available in SOP-8 (150mil) and SON-8 (2mm x 3mm) packages.  

Results: 16
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Memory Size
Interface Type
Maximum Clock Frequency
Organization
Package / Case
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
RAMXEED F-RAM
Datasheet
176In Stock
476Expected 2026-07-07
Min.: 1
Mult.: 1
Tray

RAMXEED F-RAM 64kbit FeRAM with SPI 2.7V-5.5V - SOP8 T&R (125C)
Datasheet
2,690In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

64 kbit SPI 25 MHz, 33 MHz 8 k x 8 SOP-8 2.7 V 5.5 V - 40 C + 125 C Reel, Cut Tape, MouseReel

RAMXEED F-RAM 64kbit FeRAM with SPI 2.7V-5.5V - SOP8 T&R (AECQ100 125C)
Datasheet
630In Stock
1,500Expected 2026-08-18
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

64 kbit SPI 25 MHz, 33 MHz 8 k x 8 SOP-8 2.7 V 5.5 V - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
RAMXEED F-RAM 64kbit FeRAM with SPI 2.7V-5.5V - SON8 T&R (125C)
Datasheet
189In Stock
7,500Expected 2026-06-25
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

64 kbit SPI 25 MHz, 33 MHz 8 k x 8 SON-8 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
RAMXEED F-RAM 16kbit FeRAM with SPI serial interface - SON8 T&R (up to 95C)
Datasheet
7,400On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

16 kbit SPI 20 MHz 2 k x 8 SON-8 2.7 V 3.6 V - 40 C + 95 C Reel, Cut Tape, MouseReel
RAMXEED F-RAM
Datasheet
1,500Expected 2026-07-21
Min.: 1
Mult.: 1
: 1,500
Reel, Cut Tape
RAMXEED F-RAM
Datasheet
1,500Expected 2026-06-12
Min.: 1
Mult.: 1
: 1,500
Reel, Cut Tape
RAMXEED F-RAM
Datasheet
1,500Expected 2026-08-07
Min.: 1
Mult.: 1
: 1,500
Reel, Cut Tape
RAMXEED F-RAM
Datasheet
476Expected 2026-07-16
Min.: 1
Mult.: 1
Tray
RAMXEED F-RAM 64kbit FeRAM with SPI 2.7V-5.5V - SOP8 tube (AECQ100 125C)
Datasheet
66Expected 2026-06-23
Min.: 1
Mult.: 1

64 kbit SPI 25 MHz, 33 MHz 8 k x 8 SOP-8 2.7 V 5.5 V - 40 C + 125 C AEC-Q100 Tube
RAMXEED F-RAM 64kbit FeRAM with SPI 2.7V-5.5V - SOP8 tube (125C)
Datasheet
243Expected 2026-07-17
Min.: 1
Mult.: 1

64 kbit SPI 25 MHz, 33 MHz 8 k x 8 SOP-8 2.7 V 5.5 V - 40 C + 125 C Tube
RAMXEED F-RAM
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500
Reel
RAMXEED F-RAM
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 476
Mult.: 476
Tray
RAMXEED F-RAM
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1
Tray
RAMXEED F-RAM
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1
Tray
RAMXEED F-RAM
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1
: 1,500
Reel, Cut Tape