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R8C Scheda tecnica(PDF) 73 Page - Renesas Technology Corp |
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R8C Scheda tecnica(HTML) 73 Page - Renesas Technology Corp |
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73 / 106 page ![]() R01DS0011EJ0100 Rev.1.00 Page 73 of 102 Dec 21, 2010 R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, R8C/LA8A Group 5. Electrical Characteristics Note: 1. 1tCYC = 1/f1(s) Figure 5.7 I/O Timing of I2C bus Interface Table 5.25 Timing Requirements of I2C bus Interface (1) (VCC = 1.8 to 5.5 V, VSS = 0 V, and Topr = −20 to 85 °C (N version)/ −40 to 85 °C (D version), unless otherwise specified.) Symbol Parameter Condition Standard Unit Min. Typ. Max. tSCL SCL input cycle time 12tCYC + 600 (1) –– ns tSCLH SCL input “H” width 3tCYC + 300 (1) –– ns tSCLL SCL input “L” width 5tCYC + 500 (1) –– ns tsf SCL, SDA input fall time – – 300 ns tSP SCL, SDA input spike pulse rejection time – – 1tCYC (1) ns tBUF SDA input bus-free time 5tCYC (1) –– ns tSTAH Start condition input hold time 3tCYC (1) –– ns tSTAS Retransmit start condition input setup time 3tCYC (1) –– ns tSTOP Stop condition input setup time 3tCYC (1) –– ns tSDAS Data input setup time 1tCYC + 40 (1) –– ns tSDAH Data input hold time 10 – – ns SDA tSTAH tSCLL tBUF VIH VIL tSCLH SCL tsr tsf tSDAH tSCL tSTAS tSP tSTOP tSDAS P(2) S(1) Sr(3) P(2) Notes: 1. Start condition 2. Stop condition 3. Retransmit start condition |
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