M93C86-x M93C76-x M93C66-x M93C56-x M93C46-x 16-Kbit, 8-Kbit, 4-Kbit, 2-Kbit and 1-Kbit (8-bit or 16-bit wide) MICROWIRE serial access EEPROM Datasheet - production data Features Industry standard MICROWIRE bus Single supply voltage: 2.5 V to 5.5 V for M93Cx6-W 1.8 V to 5.5 V for M93Cx6-R Dual organization: by word (x16) or byte (x8) PDIP8 (BN) Programming instructions that work on: byte, word or entire memory Self-timed programming cycle with auto-erase: 5 ms READY/BUSY signal during programming 2 MHz clock rate SO8 (MN) Sequential read operation Enhanced ESD/latch-up behavior More than 4 million write cycles More than 200-year data retention Packages TSSOP8 (DW) SO8, TSSOP8, UFDFPN8 packages: 169 mil width ECOPACK2) PDIP8 package: ECOPACK1 Table 1. Device summary UFDFPN8 (MC) Part Memory Supply Reference 2 x 3 mm number size voltage M93C46-W 2.5 V to 5.5 V M93C46-x 1 Kbit M93C46-R 1.8 V to 5.5 V M93C56-W 2.5 V to 5.5 V M93C56-x 2 Kbit M93C56-R 1.8 V to 5.5 V M93C66-W 2.5 V to 5.5 V M93C66-x 4 Kbit M93C66-R 1.8 V to 5.5 V M93C76-W 2.5 V to 5.5 V M93C76-x 8 Kbit M93C76-R 1.8 V to 5.5 V M93C86-W 2.5 V to 5.5 V M93C86-x 16 Kbit M93C86-R 1.8 V to 5.5 V December 2015 DocID4997 Rev 17 1/35 This is information on a product in full production. www.st.comContents M93C86-x M93C76-x M93C66-x M93C56-x M93C46-x Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Connecting to the serial bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Operating features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 Supply voltage (V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 CC 3.1.1 Operating supply voltage (V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 CC 3.1.2 Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1.3 Power-up and device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1.4 Power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1 Read Data from Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2 Erase and Write data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2.1 Write Enable and Write Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2.2 Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2.3 Write All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.2.4 Erase Byte or Word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.2.5 Erase All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 READY/BUSY status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 Initial delivery state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 Clock pulse counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 10 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 11 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 11.1 PDIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 11.2 SO8N package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2/35 DocID4997 Rev 17