ISSI IS37SM Flash Memory Devices
ISSI IS37SM Flash Memory Devices are 1Gb/2Gb devices that are based on the standard parallel NAND Flash. These SLC SPI-NAND memory devices provide an advanced write protection mechanism for data security, such as software write protection with a block lock register. The IS37SM Flash memory devices feature Single-Level Cell (SLC) technology, user-selectable internal 8-bit ECC, and first page auto-load on power up. These devices include ten pages of One-Time Programmable (OTP) Flash memory area and offer 10 years of data retention. The IS37SM Flash memory devices are ideal for systems that require a minimum pin count.
Features
- Single-Level Cell (SLC) technology
- Architecture:
- 1bit/memory cell
- Plane size:
- 1Gb: 1024 blocks per plane
- 2Gb: 2048 blocks per plane
- Device size:
- 1Gb: 1 plane = 1024 blocks
- 2Gb: 1 plane = 2048 blocks
- Standard and extended SPI-compatible serial bus interface:
- Read: Instruction, address on 1 pin and data out on 1, 2, or 4 pins (1-1-1, 1-1-2, or 1-1-4)
- Program: Instruction, address on 1 pin and data in on 1 or 4 pins (1-1-1 or 1-1-4)
- User-selectable internal ECC:
- 8bit ECC per 544 bytes
- Default state of internal ECC is enabled
- Reliability:
- 100K endurance typical program/erase cycles with internal ECC enabled
- 10 years of data retention
- Security:
- Blocks 7.0 are valid when shipped from factory with internal ECC enabled
- Software write protection with block lock register, which includes BP bits (BP0/1/2)
- Hardware write protection with WP# to freeze BP bits
- Lock tight to protect BP bits during one power cycle instead of WP#
- Permanent block lock protection
- 10 pages of One-Time Programmable (OTP) Flash memory area
- Operating temperature range:
- -40°C to 85°C (industrial)
- -40°C to 105°C (automotive, A2)
Block Diagram
Inilathala: 2025-06-04
| Na-update: 2025-06-26