What is 3wire interface? (Serial EEPROMs)

The protocol is Microwire. Former National Semiconductor standard.This interface is widely used.Chip select input (CS), Serial clock input (SK), Serial data input (DI),Serial data output (DO), connect these four lines to general-purpose I/O ports on the MCU.*DI and DO can be connected, so 3 wires are also possible = 3wire.

What is "Function to Protect Against Write due to Erroneous Instruction Recognition"? (Serial EEPROMs)

ABLIC EEPROMs (except S-24 serise) provides a built-in clock pulse monitoring circuit which is used to prevent an erroneous write operation bycanceling write instructions recognized erroneously due to an erroneous clock count caused by the application of noise pulses or double counting of clocks. Instructions are cancelled if a clock pulse whose count other than the one specified for each write instruction is detected.

FAQ - ABLIC Inc.

3-wire (Microwire)Serial EEPROMs

Author (Dept.): ABLIC Product Marketing

Updated on May. 11, 2023

The protocol is Microwire. Former National Semiconductor standard. This interface is widely used. Ch...

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What is 3wire interface?

What is "Function to Protect Against Write due to Erroneous Instruction Recognition"?