LTC4331 SWITCHING CHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C, CL = 20pF, VCC = 5V, VL = 3.3V, GND = 0V; unless otherwise noted.Conditions Fast-mode Plus, Fast-mode, and Standard-mode listed below as Fm+, Fm, and Sm respectively. SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS tHD:DAT:FMASTER Data Hold from LTC4331 l 50 ns tHD:DAT:TMASTER Data Hold to LTC4331 (Note 2) l 0 ns tSU:DAT:FMASTER Data Setup from LTC4331 SPEED1/SPEED2 = Fm+ l 50 ns SPEED1/SPEED2 = Fm l 100 ns SPEED1/SPEED2 = Sm l 250 ns tSU:DAT:TMASTER Data Setup to LTC4331 l 50 ns tTIMEOUT:MASTER SCL Low Timeout Detection l 28 31.5 35 ms tLOW:MASTER SCL Low Time SPEED1/SPEED2 = Fm+ l 0.6 µs SPEED1/SPEED2 = Fm l 1.5 µs SPEED1/SPEED2 = Sm l 5.8 µs tHIGH:MASTER SCL High Time SPEED1/SPEED2 = Fm+ l 0.4 µs SPEED1/SPEED2 = Fm l 1 µs SPEED1/SPEED2 = Sm l 3.8 µs tF Fall Time (SDA, SCL) (Note 5) SPEED1/SPEED2 = Fm+ l 120 ns SPEED1/SPEED2 = Fm, Sm l 300 ns CL = 550pF, RL = 1kΩ (Figure 5) (Note 2) l 25 ns tR Rise Time (SDA, SCL) (Note 5) SPEED1/SPEED2 = Fm+ l 120 ns SPEED1/SPEED2 = Fm, Sm l 300 ns tSPIKE Noise Spike Suppression Time (SDA, SCL) l 0 50 ns Transceiver tRD, tFD Driver Rise or Fall Time (Figure 4) RDIFF = 54Ω, CL = 100pF, SLO = 1 l 4 15 ns RDIFF = 54Ω, CL = 100pF, SLO = 0 l 500 800 1200 ns tLINK_TIMEOUT Response Time for LINK = 1 after Disconnection REMOTE = 1 168 ms REMOTE = 0 (Note 4) 96 • SF µs System tALT_PROP ALERT Propagation Delay, Remote to Local I2C Bus idle (Note 4) 0.8 • SF 2 • SF 26 • SF µs tCTRL_PROP Local CTRL Propagation Delay to Remote CTRL I2C Bus idle (Note 4) 0.8 • SF 2 • SF 26 • SF µs tSTART_PROP I2C START Link Propagation Delay, Local to Remote (Note 4) 2 • SF µs tLDAT_PROP I2C DATA Link Propagation Delay, Local to Remote (Note 4) 2 • SF µs tSTOP_PROP I2C STOP Link Propagation Delay, Local to Remote (Note 4) 2 • SF µs tRDAT_PROP I2C DATA Link Propagation Delay, Remote to Local (Note 4) 2 • SF µs Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 4: SF = Speed Factor. See Table 3. may cause permanent damage to the device. Exposure to any Absolute Note 5: SCL and SDA rise and fall time measurement limits are defined as Maximum Rating condition for extended periods may affect device follows: reliability and lifetime. Rise Time Limit: 0.65V to 1.5V Note 2: Guaranteed by design, not production tested. Fall Time Limit: 1.5V to 0.65V Note 3: Local SCL frequencies between 1000kHz and 2000kHz are allowed, however the effective link throughput maximum is 1000kHz. SCL low clock-stretching by the LTC4331 must be respected. Rev 0 6 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagrams Applications Information Typical Applications Package Description Typical Application Related Parts
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