23A256-I/SNIC SRAM 256KBIT 20MHZ 8SOIC|MICROCHIP TECHNOLOGY|Lead free|RoHS Compliant 23A256T-I/SN 23A256-I/STIC SRAM 256KBIT 20MHZ 8TSSOP|MICROCHIP TECHNOLOGY|Lead free|RoHS Compliant 23A256T-I/ST
