Datasheet LTC4331 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | I2C Slave Device Extender Over Rugged Differential Link |
| Páginas / Página | 26 / 5 — The. denotes the specifications which apply over the full operating |
| Formato / tamaño de archivo | PDF / 243 Kb |
| Idioma del documento | Inglés |
The. denotes the specifications which apply over the full operating
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LTC4331
SWITCHING CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating temperature 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. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tON_LOW Pulse Width of ON Low for Valid Reset Condition l 1 µs
Local Mode (REMOTE = 0)
tREADY Delay From ON Rise to RDY Low I2C Bus IDLE 65 µs tREMOTE_RESET Delay From Local ON Low for Valid Remote Reset l 180 ms Condition fSCL:SLAVE Slave Device SCL Operating Frequency (Note 3) l 10 1000 2000 kHz tBUF:SLAVE Bus free Time between STOP and START SPEED1/SPEED2 = Fm+ l 0.5 µs SPEED1/SPEED2 = Fm l 1.3 µs SPEED1/SPEED2 = Sm l 4.7 µs tSU:STA:SLAVE Repeated Start Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4.7 µs tHD:STA:SLAVE Hold Time after START Condition SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4 µs tSU:STO:SLAVE STOP Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4 µs tSU:DAT:FSLAVE Data Setup Time from LTC4331 SPEED1/SPEED2 = Fm+ l 50 ns SPEED1/SPEED2 = Fm l 100 ns SPEED1/SPEED2 = Sm l 250 ns tSU:DAT:TSLAVE Data Setup Time to LTC4331 l 50 ns tHD:DAT:TSLAVE Data Hold Time to LTC4331 l 0 ns tHD:DAT:FSLAVE Data Hold Time from LTC4331 l 50 ns tTIMEOUT:SLAVE SCL Low Timeout Detection l 28 31.5 35 ms tLOW:SLAVE SCL Low Time l 0.25 µs tHIGH:SLAVE SCL High Time l 0.25 50 µs tHIGH:IDLE SCL High for Bus Idle Detection l 70 µs
Remote Mode (REMOTE = 1)
tSCL:MASTER Master Device SCL Operating Period SPEED1/SPEED2 = Fm+ l 1 µs SPEED1/SPEED2 = Fm l 2.5 µs SPEED1/SPEED2 = Sm l 10 µs tBUF:MASTER Bus Free Time between STOP and START SPEED1/SPEED2 = Fm+ l 0.5 0.6 µs SPEED1/SPEED2 = Fm l 1.3 1.5 µs SPEED1/SPEED2 = Sm l 4.7 5 µs tHD:STA:MASTER Hold Time after START Condition SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4 4.2 µs tSU:STA:MASTER Repeated Start Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4.7 4.8 µs tSU:STO:MASTER Setup Time for STOP SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4 4.2 µs Rev 0 For more information www.analog.com 5 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
SWITCHING CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating temperature 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. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tON_LOW Pulse Width of ON Low for Valid Reset Condition l 1 µs
Local Mode (REMOTE = 0)
tREADY Delay From ON Rise to RDY Low I2C Bus IDLE 65 µs tREMOTE_RESET Delay From Local ON Low for Valid Remote Reset l 180 ms Condition fSCL:SLAVE Slave Device SCL Operating Frequency (Note 3) l 10 1000 2000 kHz tBUF:SLAVE Bus free Time between STOP and START SPEED1/SPEED2 = Fm+ l 0.5 µs SPEED1/SPEED2 = Fm l 1.3 µs SPEED1/SPEED2 = Sm l 4.7 µs tSU:STA:SLAVE Repeated Start Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4.7 µs tHD:STA:SLAVE Hold Time after START Condition SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4 µs tSU:STO:SLAVE STOP Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 µs SPEED1/SPEED2 = Fm l 0.6 µs SPEED1/SPEED2 = Sm l 4 µs tSU:DAT:FSLAVE Data Setup Time from LTC4331 SPEED1/SPEED2 = Fm+ l 50 ns SPEED1/SPEED2 = Fm l 100 ns SPEED1/SPEED2 = Sm l 250 ns tSU:DAT:TSLAVE Data Setup Time to LTC4331 l 50 ns tHD:DAT:TSLAVE Data Hold Time to LTC4331 l 0 ns tHD:DAT:FSLAVE Data Hold Time from LTC4331 l 50 ns tTIMEOUT:SLAVE SCL Low Timeout Detection l 28 31.5 35 ms tLOW:SLAVE SCL Low Time l 0.25 µs tHIGH:SLAVE SCL High Time l 0.25 50 µs tHIGH:IDLE SCL High for Bus Idle Detection l 70 µs
Remote Mode (REMOTE = 1)
tSCL:MASTER Master Device SCL Operating Period SPEED1/SPEED2 = Fm+ l 1 µs SPEED1/SPEED2 = Fm l 2.5 µs SPEED1/SPEED2 = Sm l 10 µs tBUF:MASTER Bus Free Time between STOP and START SPEED1/SPEED2 = Fm+ l 0.5 0.6 µs SPEED1/SPEED2 = Fm l 1.3 1.5 µs SPEED1/SPEED2 = Sm l 4.7 5 µs tHD:STA:MASTER Hold Time after START Condition SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4 4.2 µs tSU:STA:MASTER Repeated Start Condition Setup Time SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4.7 4.8 µs tSU:STO:MASTER Setup Time for STOP SPEED1/SPEED2 = Fm+ l 0.26 0.3 µs SPEED1/SPEED2 = Fm l 0.6 0.8 µs SPEED1/SPEED2 = Sm l 4 4.2 µs Rev 0 For more information www.analog.com 5 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