The SST29VF040-70-4I-NHE has a minimum of 100,000 erase cycles per sector, and a minimum of 10,000 erase cycles per block.
The HOLD# pin should be driven low to pause the current operation, and driven high to resume the operation. It's recommended to use the HOLD# pin to pause the operation during power-down or power-up sequences.
The recommended method is to poll the RY/BY# pin, which goes low during a write operation and returns high when the operation is complete. Alternatively, you can use the DQ7 or DQ6 status bits to detect the end of a write operation.
The WP# pin should be driven low to enable write protection, and driven high to disable write protection. When WP# is low, the device will ignore all write commands, including those that would normally modify the protection status.
The SST29VF040-70-4I-NHE has an operating temperature range of -40°C to +85°C, and a storage temperature range of -65°C to +150°C.