DS2172
20 of 22
AC CHARACTERISTICS - RECEIVE SIDE
(0
0C TO 700C FOR DS2172T; V
DD=5V10%)
-40
0C to +850C for DS2172TN; V
DD=5V10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
RCLK Period
tCP
19
ns
RCLK Pulse Width
tCH
tCL
8
ns
RDATA Set Up to RCLK Rising
tSU1
4ns
RDATA Hold from RCLK Rising
tHD1
0ns
RDIS Set Up to RCLK Rising
tSU2
4ns
RDIS Hold from RCLK Rising
tHD2
0ns
RL and LC Pulse Width
tWRL
25
ns
RCLK Rise and Fall Times
tR, tF
10
ns
1
AC CHARACTERISTICS - TRANSMIT SIDE
(0
0C to 700C for DS2172T; V
DD=5V10%)
-40
0C to +850C for DS2172TN; V
DD=5V10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
TCLK Period
tCP
19
ns
TCLK Pulse Width
tCH
tCL
8
ns
TDATA Delay from TCLK Rising
tDD
9ns
TDIS Set Up to TCLK Rising
tSU
4ns
TDIS Hold from TCLK Rising
tHD
0ns
TL Pulse Width
tWTL
15
ns
TL Set Up to TCLK Rising
tSTL
4ns
TL Hold Off from TCLK Rising
tHTL
0ns
TCLK Rise and Fall Time
tR, tF
10
ns
1
NOTE:
1. The maximum rise and fall time is either 10 ns or 10% of tCP whichever is less.