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Serial RAM and Quad RAM Solutions
ISSI's serial and quad RAM are low pin count RAM solutions
ISSI's serial and quad RAM solutions are ideal for medical and wearable applications. The serial RAM has a serial peripheral interface (SPI) compatible bus, including SPI(x1)/SDI(x2)/SQI(x4) modes that offer a very low bus signal count of six pins for x4 IO and very simple commands. The quad RAM has a quad DDR (x4 xSPI) interface command (1 byte) = SDR, address (2-byte), and data = DDR.
Features
- Serial RAM has an SPI compatible bus: SPI(x1)/SDI(x2)/SQI(x4) mode
- Serial RAM has very low bus signal count: 6 pins for x4 IO; CS#, SCK, SIO0 - SIO3, or 4 pins for x1/x2 IO: CS#, SCK, SI(SIO0), SO(SIO1)
- Serial RAM has very simple commands (7 commands): Read/write memory, read/write register, enter SDI (x2)/SQI mode(x4), and return to SPI mode (x1)
- Quad RAM has a quad DDR (x4 xSPI) interface: Command (1 byte) = SDR, address (2-byte), and data = DDR
- Quad RAM has low signal counts: 7 signal pins (CS#, SCLK, DQSM, SIO0 to SIO3)
- Quad RAM has configurable wrapped burst length: 16, 32, 64, and 128
- Densities offered: 8 Mb, 16 Mb, 32 Mb, and 64 Mb
Applications
- IoT and wearables
- Automotive infotainment
- Industrial automation
- Portable medical devices
Serial RAM and Quad RAM Solutions
| Image | Manufacturer Part Number | Description | Memory Organization | Memory Interface | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|
 |  | IS66WVE4M16EBLL-70BLI | IC PSRAM 64MBIT PARALLEL 48TFBGA | 4M x 16 | Parallel | 2972 - Immediate | $3.37 | View Details |
|  | IS66WVH8M8ALL-166B1LI | IC PSRAM 64MBIT PAR 24TFBGA | 8M x 8 | Parallel | 43 - Immediate | $3.37 | View Details |
| | IS66WVH16M8DBLL-100B1LI | IC PSRAM 128MBIT PAR 24TFBGA | 16M x 8 | Parallel | 2757 - Immediate | $3.59 | View Details |
|  | IS66WVS1M8ALL-104NLI | IC PSRAM 8MBIT SPI QPI 8SOIC | 1M x 8 | SPI, QPI | 208 - Immediate | $1.80 | View Details |
| | IS66WVS1M8BLL-104NLI | IC PSRAM 8MBIT SPI QPI 8SOIC | 1M x 8 | SPI, QPI | 6 - Immediate | $1.80 | View Details |
| | IS66WVS2M8BLL-104NLI | IC PSRAM 16MBIT SPI QPI 8SOIC | 2M x 8 | SPI, QPI | 383 - Immediate | $2.10 | View Details |
| | IS66WVS4M8ALL-104NLI | IC PSRAM 32MBIT SPI QPI 8SOIC | 4M x 8 | SPI, QPI | 0 - Immediate | $2.40 | View Details |
| | IS66WVH16M8DALL-166B1LI | IC PSRAM 128MBIT PAR 24TFBGA | 16M x 8 | Parallel | 749 - Immediate | $3.59 | View Details |
| | IS66WVS2M8ALL-104NLI | IC PSRAM 16MBIT SPI QPI 8SOIC | 2M x 8 | SPI, QPI | 140 - Immediate | $2.10 | View Details |
| | IS66WVQ8M4DALL-200BLI | IC PSRAM 32MBIT SPI/QUAD 24TFBGA | 8M x 4 | SPI - Quad I/O | 503 - Immediate | $2.55 | View Details |
| | IS66WVQ8M4DBLL-133BLI | IC PSRAM 32MBIT SPI/QUAD 24TFBGA | 8M x 4 | SPI - Quad I/O | 335 - Immediate | $2.55 | View Details |
| | IS66WVE2M16EBLL-70BLI | IC PSRAM 32MBIT PARALLEL 48TFBGA | 2M x 16 | Parallel | 923 - Immediate | $2.92 | View Details |
| | IS66WVO8M8DBLL-166BLI | IC PSRAM 64MBIT SPI/OCTL 24TFBGA | 8M x 8 | SPI - Octal I/O | 198 - Immediate | $3.07 | View Details |
| | IS66WVO8M8DALL-200BLI | IC PSRAM 64MBIT SPI/OCTL 24TFBGA | 8M x 8 | SPI - Octal I/O | 202 - Immediate | $3.37 | View Details |
| | IS66WVE4M16ECLL-70BLI | IC PSRAM 64MBIT PARALLEL 48TFBGA | 4M x 16 | Parallel | 719 - Immediate | $4.10 | View Details |
Published: 2024-04-04
United Kingdom