FM25V10-G Ramtron, FM25V10-G Datasheet - Page 4

• Manufacturer Part Number: FM25V10-G
• Description: F-RAM 1M (128Kx8) 2.0-3.6V
• Manufacturer: Ramtron

Specifications of FM25V10-G

• Organization: 128 K x 8
• Operating Supply Voltage: 2 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Memory Size: 1 Mbit
• Interface: SPI
• Package / Case: SOIC-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

System Hookup
The SPI interface uses a total of four pins: clock,
data-in, data-out, and chip select. A typical system
configuration uses one or more FM25V10 devices
with a microcontroller that has a dedicated SPI port,
as Figure 3 illustrates. Note that the clock, data-in,
and data-out pins are common among all devices.
The Chip Select and Hold pins must be driven
separately for each FM25V10 device.
Rev. 2.0
May 2010
Figure 3. 2Mbit (256KB) System Configuration with SPI port
Figure 4. System Configuration without SPI port
For a microcontroller that has no dedicated SPI bus, a
general purpose port may be used. To reduce
hardware resources on the controller, it is possible to
connect the two data pins together and tie off the
Hold pin. Figure 4 shows a configuration that uses
only three pins.
FM25V10 - 1Mb SPI FRAM
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