TCN75A_1 Datasheet, PDF (5/40 Pages) Microchip Technology – 2-Wire Serial Temperature Sensor

TCN75A
SERIAL INTERFACE TIMING SPECIFICATIONS (Note 1)
Electrical Specifications: Unless otherwise indicated, V_DD = 2.7V to 5.5V, GND = Ground, T_A = -40°C to +125°C,
C_L = 80 pF and all limits measured to 50% point.
Parameters
Sym
Min Typ Max Units
Conditions
2-Wire I²C™ Compatible Interface
Serial Port Frequency
f_SC
0
—
400 kHz
Clock Period
t_SC
2.5
—
—
µs
Low Clock
t_LOW
1.3
—
—
µs
High Clock
t_HIGH
0.6
—
—
µs
Rise Time
t_R
20
—
300
ns
Fall Time
t_F
20
—
300
ns
Data Setup Before SCL High
t_SU-DATA
0.1
—
—
µs
Data Hold After SCL Low
t_H-DATA
0
—
—
µs
Start Condition Setup Time
t_SU-START 0.6
—
—
µs
Start Condition Hold Time
t_H-START
0.6
—
—
µs
Stop Condition Setup Time
t_SU-STOP
0.6
—
—
µs
Bus Idle
t_B-FREE
1.3
—
—
µs
Note 1: Specification limits are characterized but not product tested.
10% to 90% of V_DD (SCL, SDA)
90% to 10% of V_DD (SCL, SDA)
Timing Diagram
t SU-STAt^RHT-START
SCL
t HIGH
t LOW
t SU-STOPt B-FREE
SDA
Start Condition
t R^{, t F}
t SU-DATA
t H-DATA
Data Transmission
Stop Condition
 2010 Microchip Technology Inc.
DS21935D-page 5