M93C66M93C66-R datasheet(17/33 Pages) STMICROELECTRONICS

Part #	M93C66M93C66-R

Description	16-Kbit, 8-Kbit, 4-Kbit, 2-Kbit and 1-Kbit (8-bit or 16-bit wide) MICROWIRE serial access EEPROM

PDF	33 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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17 / 33 page

DocID4997 Rev 13

17/33

M93C86xx M93C76xx M93C66xx M93C56xx M93C46xx

READY/BUSY status

While the Write or Erase cycle is underway, for a WRITE, ERASE, WRAL or ERAL

instruction, the Busy signal (Q=0) is returned whenever Chip Select input (S) is driven high.

(Please note, though, that there is an initial delay, of tSLSH, before this status information

becomes available). In this state, the M93Cx6 ignores any data on the bus. When the Write

cycle is completed, and Chip Select Input (S) is driven high, the Ready signal (Q=1)

indicates that the M93Cx6 is ready to receive the next instruction. Serial Data Output (Q)

remains set to 1 until the Chip Select Input (S) is brought low or until a new start bit is

decoded.

Initial delivery state

The device is delivered with all bits in the memory array set to 1 (each byte contains FFh).

M93C66M93C66-R Datasheet(PDF) 17 Page - STMicroelectronics