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CAT34C02 Fiches technique(PDF) 11 Page - Catalyst Semiconductor |
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CAT34C02 Fiches technique(HTML) 11 Page - Catalyst Semiconductor |
11 / 17 page CAT34C02 11 Doc No. 1095, Rev. C © 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice WP A 2 A 1 A 0 PSWP RSWP b 7 to b4 b 3 b 2 b 1 b 0 X A 2 A 1 A 0 1 X A 2 A 1 A 0 X No GND A 2 A 1 A 0 0 X A 2 A 1 A 0 0 Yes X Yes X Yes Yes V CC A 2 A 1 A 0 0 X A 2 A 1 A 0 0 Yes X Yes X No No X A2 A1 A0 0 X A2 A1 A0 1 Yes X GND GND VHV 1 X 0 0 1 X No X GND GND VHV 0 1 0 0 1 X No GND GND GND VHV 0 0 0 0 1 0 Yes X Yes X Yes Yes VCC GND GND VHV 0 0 0 0 1 0 Yes X Yes X No No X GND GND VHV 0 0 0 0 1 1 Yes X GND VCC VHV 1 X 0 1 1 X No GND GND VCC VHV 0 X 0 1 1 0 Yes X Yes X Yes Yes VCC GND VCC VHV 0 X 0 1 1 0 Yes X Yes X No No X GND VCC VHV 0 X 0 1 1 1 Yes Set RSWP Clear RSWP 0110 Slave Address Set PSWP Action Control Pin Levels (1) Flag State (2) ACK ? Write Cycle ACK ? ACK ? Address Byte Data Byte Table 1. SWP Commands Note: (1) Here A2, A1 and A0 are either at VCC or GND. (2) 1 stands for ‘Set’, 0 stands for ‘Not Set’, X stands for ‘don’t care’. Figure 12. Software Write Protect (Write) Figure 13. Software Write Protect (Read) BYTE ADDRESS SLAVE ADDRESS S A C K A C K DATA S T O P P BUS ACTIVITY: MASTER SDA LINE S T A R T X X X X X X X X X X X X X X X = Don't Care X X N O A C K or A C K SLAVE ADDRESS S N O A C K or A C K S T O P P BUS ACTIVITY: MASTER SDA LINE S T A R T |
Numéro de pièce similaire - CAT34C02 |
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Description similaire - CAT34C02 |
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