CMS25Q64A
Manufacturer: Cmsemicon
The CMS25Q64A is a 64 Mbit SPI NOR Flash. It appears in motor drive and motion controller designs because the firmware image for a field-oriented control loop plus its parameter tables fits comfortably in 8 Mbyte, and the part is read at boot into RAM. Like other SPI NOR devices in this class it supports standard, dual and quad read modes.
Overview
The CMS25Q64A is a 64 Mbit serial NOR Flash memory from Cmsemicon. The datasheet lists a 2.7 – 3.6 V single supply, a normal serial read clock of 100 MHz and a fast serial read of 120 MHz into a 30 pF load, with page program up to 256 bytes. Typical timings are 0.45 ms per page program, 35 ms per 4 KB sector erase, 0.10 s for a 32 KB block erase and 22 s for a full chip erase.
Active current is a maximum of 9 mA and power-down current a maximum of 0.7 µA, while typical data retention is 20 years. The device is offered in the standard SOP-8 package and is intended for firmware and configuration storage in consumer, industrial and control applications.
Key features
- 64 Mbit fits FOC firmware plus parameter tables
- Standard / dual / quad read modes
- 3.3 V interface matches common motor control MCUs
Typical applications
- Motion controller and motor drive firmware
- Industrial servo code storage
- Embedded boot code
Specifications
Memory
| Density | 64 Mbit (8 Mbyte) |
|---|---|
| Type | SPI NOR Flash |
| Interface | SPI / Dual / Quad |
Electrical
| Supply voltage | 2.7 – 3.6 V |
|---|
Mechanical
| Package | SOP-8 |
|---|
Note on parameters. The figures above are taken from the manufacturer datasheet for CMS25Q64A. Electrical limits vary by ordering option and revision — confirm the current datasheet before finalising your design.
Package and ordering
| Ordering code | Package | Operating temp. / grade |
|---|---|---|
| CMS25Q64A | SOP-8 | Tape & reel |
Alternative and comparison parts
Designs that evaluate this part usually compare it against the following:
Related products
Related technical articles
Sourcing CMS25Q64A
We supply CMS25Q64A with original manufacturer documentation and a quotation that states lead time, packaging and price breaks. Send your annual quantity and target date and you will get a reply with the datasheet attached.