поискавой системы для электроныых деталей |
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CAT24AC128YE-1.8TE13 датащи(PDF) 7 Page - Catalyst Semiconductor |
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CAT24AC128YE-1.8TE13 датащи(HTML) 7 Page - Catalyst Semiconductor |
7 / 11 page CAT24AC128 7 Doc. No. 1028, Rev. I device to select at random any memory location for a READ operation. The Master device first performs a ‘dummy’ write operation by sending the START condition, slave address and byte addresses of the location it wishes to read. After CAT24AC128 acknowledges, the Master device sends the START condition and the slave address again, this time with the R/ W bit set to one. The CAT24AC128 then responds with its acknowledge and sends the 8-bit byte requested. The master device does not send an acknowledge but will generate a STOP condition. Sequential Read The Sequential READ operation can be initiated by either the Immediate Address READ or Selective READ operations. After the CAT24AC128 sends the initial 8-bit byte requested, the Master will respond with an acknowledge which tells the device it requires more Figure 8. Current Address Read Timing data. The CAT24AC128 will continue to output an 8-bit byte for each acknowledge sent by the Master. The operation will terminate when the Master fails to respond with an acknowledge, thus sending the STOP condition. The data being transmitted from CAT24AC128 is outputted sequentially with data from address N followed by data from address N+1. The READ operation address counter increments all of the CAT24AC128 address bits so that the entire memory array can be read during one operation. If more than E (where E=16383) bytes are read out, the counter will ‘wrap around’ and continue to clock out data bytes. Figure 9. Random Address Read Timing *=Don't Care Bit 24AC128 F08 SCL SDA 8TH BIT STOP NO ACK DATA OUT 89 SLAVE ADDRESS S A C K BUS ACTIVITY: MASTER SDA LINE S T A R T N O A C K DATA S T O P P A15–A8 SLAVE ADDRESS S A C K A C K A C K BUS ACTIVITY: MASTER SDA LINE S T A R T A7–A0 BYTE ADDRESS SLAVE ADDRESS S A C K N O A C K S T A R T DATA P S T O P * * |
Аналогичный номер детали - CAT24AC128YE-1.8TE13 |
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Аналогичное описание - CAT24AC128YE-1.8TE13 |
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