pca9655e ON Semiconductor, pca9655e Datasheet - Page 16

• Manufacturer Part Number: pca9655e
• Description: Pca9655e Remote 16-bit I/o Expander For I2c Bus With Interrupt
• Manufacturer: ON Semiconductor

SDA
SCL
P
t
BUF
R
C
R
S
L
L
T
= load resistor.
= load capacitance includes jig and probe capacitance.
= termination resistance should be equal to the output impedance of Z
SCL from master
by transmitter
t
data output
HD;STA
by receiver
data output
t
LOW
from output under test
GENERATOR
PULSE
Figure 16. Definition of Timing on the I
condition
t
t
Figure 17. Test Circuitry for Switching Times
r
START
Figure 15. Acknowledgement of the I
HD;DAT
S
TIMING AND TEST SETUP
Figure 18. Load Circuit
V
t
I
HIGH
http://onsemi.com
1
50 pF
R T
C L
DUT
t
V
f
DD
16
t
SU;DAT
2
V
R L
500 W
O
500 W
R L
C L
50 pF
acknowledgement
S1
not acknowledge
R L
500 W
2
clock pulse for
C Bus
2
acknowledge
Sr
C Bus
2V
open
GND
V
open
GND
8
o
DD
of the pulse generators.
DD
t
SU;STA
t
HD;STA
9
t
SP
t
SU;STO
P