User Manual

DS2172
031197 18/20
AC CHARACTERISTICS – RECEIVE SIDE (0°C to 70°C; V
DD
=5V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
RCLK Period t
CP
19 ns
RCLK Pulse Width t
CH
t
CL
8
8
ns
ns
RDATA Set Up to RCLK Rising t
SU1
4 ns
RDATA Hold from RCLK Rising t
HD1
0 ns
RDIS Set Up to RCLK Rising t
SU2
4 ns
RDIS Hold from RCLK Rising t
HD2
0 ns
RL and LC Pulse Width t
WRL
25 ns
RLCK Rise and Fall T imes t
R
, t
F
10 ns 1
AC CHARACTERISTICS – TRANSMIT SIDE (0°C to 70°C; V
DD
=5V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
TCLK Period t
CP
19 ns
TCLK Pulse Width t
CH
t
CL
8
8
ns
ns
TDATA Delay from TCLK Rising t
DD
9 ns
TDIS Set Up to TCLK Rising t
SU
4 ns
TDIS Hold from TCLK Rising t
HD
0 ns
TL Pulse Width t
WTL
15 ns
TL Set Up to TCLK Rising t
STL
4 ns
TL Hold Off from TCLK Rising t
HTL
0 ns
TCLK Rise and Fall T ime t
R
, t
F
10 ns 1
NOTE:
1. The maximum rise and fall time is either 10 ns or 10% of t
CP
whichever is less.