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AK93C45B Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AK93C45B Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
4 / 14 page ASAHI KASEI [AK93C45B/55B/65B/75B] DAM04E-02 2003/05 - 4 - Functional Description The AK93C45B/55B/65B/75B has 4 instructions such as READ, WRITE, EWEN and EWDS. A valid instruction consists of a Start Bit (Logic"1"), the appropriate Op Code and the desired memory Address location. The CS pin must be brought low for a minimum of 250ns (Tcs) between each instruction when the instruction is continuously executed. Instruction Start Bit Op Code Address Data Comments READ 1 10 A5-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A5-A0 D15-D0 Writes register. EWEN 1 00 11XXXX Write enable must precede all programming modes. EWDS 1 00 00XXXX Disables all programming instructions. WRAL 1 00 01XXXX D15-D0 Writes all registers. X: Don't care table1. Instruction Set for the AK93C45B Instruction Start Bit Op Code Address Data Comments READ 1 10 X A6-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 X A6-A0 D15-D0 Writes register. EWEN 1 00 11XXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXX Disables all programming instructions. WRAL 1 00 01XXXXXX D15-D0 Writes all registers. X: Don't care table2. Instruction Set for the AK93C55B Instruction Start Bit Op Code Address Data Comments READ 1 10 A7-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 A7-A0 D15-D0 Writes register. EWEN 1 00 11XXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXX Disables all programming instructions. WRAL 1 00 01XXXXXX D15-D0 Writes all registers. X: Don't care table3. Instruction Set for the AK93C65B Instruction Start Bit Op Code Address Data Comments READ 1 10 X A8-A0 D15-D0 Reads data stored in memory, at specified address. WRITE 1 01 X A8-A0 D15-D0 Writes register. EWEN 1 00 11XXXXXXXX Write enable must precede all programming modes. EWDS 1 00 00XXXXXXXX Disables all programming instructions. WRAL 1 00 01XXXXXXXX D15-D0 Writes all registers. X: Don't care table4. Instruction Set for the AK93C75B (Note) The WRAL instruction are used for factory function test only. User can't use the WRAL instruction. The AK93C45B/55B/65B/75B perceives the start bit in the logic"1" and also "01". |
Similar Part No. - AK93C45B_03 |
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Similar Description - AK93C45B_03 |
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