TDA8442 Datasheet, PDF (8/10 Pages) NXP Semiconductors – I2C-bus interface for colour decoders

Philips Semiconductors
I²C-bus interface for colour decoders
Product specification
TDA8442
I²C-BUS TIMING
Bus loading conditions: 4kΩ pull-up resistor to +5 V; 200 pF capacitor to GND.
All values are referred to V_IH = 3 V and V_IL = 1.5 V.
PARAMETER
SYMBOL
MIN.
Bus free before start
t_BUF
4.0
Start condition set-up time
t_{SU; STA}
4.0
Start condition hold time
t_{HD; STA}
4.0
LOW period SCL, SDA
t_LOW
4.0
HIGH period SCL
t_HIGH
4.0
Rise time SCL, SDA
t_r
−
Fall time SCL, SDA
t_f
−
Data set-up time (write)
t_{SU; DAT}
1
Data hold time (write)
t_{HD; DAT}
1
Acknowledge (from TDA8442) set-up time t_{SU; ACK}
−
Acknowledge (from TDA8442) hold time t_{HD; ACK}
0
Stop condition set-up time
t_{SU; STO}
4.0
TYP.
−
−
−
−
−
−
−
−
−
−
−
−
MAX.
−
−
−
−
−
1.0
0.30
−
−
3.5
−
−
UNIT
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
Reference levels are 10 and 90%.
Fig.5 I²C-bus timing; TDA8442.
March 1991
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