DS2176
AC ELECTRICAL CHARACTERISTICS
(0°C to 70°C; VDD =5V ± 10%)
PARAMETERS
RCLK Period
SYMBOL
MIN
TYP
648
MAX
UNITS
NOTES
tRCLK
250
ns
RCLK, SYSCLK Rise
and Fall Times
tR,tF
20
ns
ns
tRWH,
RCLK Pulse Width
125
324
tRWL
tSWH,
SYSCLK Pulse Width
100
200
20
244
488
ns
ns
ns
tSWL
SYSCLK Period
RMSYNC Setup to
RCLK Falling
SFSYNC Setup to
SYSCLK Falling
RMSYNC, SFSYNC,
SIGH , ALN Pulse Width
RSER Setup to RCLK
Falling
tSYSCLK
tSC
tSC
tPW
tSD
tHD
tRWH-5
tSWH-5
ns
20
50
50
50
ns
ns
ns
ns
RSER Hold from RCLK
Falling
Propagation Delay
SYSCLK to SSER,
A,B,C,D
Propagation Delay
SYSCLK to SMSYNC
High
Propagation Delay
SYSCLK or RCLK to
SLIP Low
Propagation Delay
SYSCLK to SIGFRZ
Low/High
tPVD
tPSS
tPS
100
75
ns
ns
ns
100
75
tPSF
tSR
ns
ns
ALN , SIGH Setup to
SFSYNC Rising
500
NOTES:
1. Measured at VIH =2.0V, VIL =0.8V, and 10 ns maximum rise and fall times.
2. Output load capacitance = 100 pF.
11 of 15
DALLAS [ DALLAS SEMICONDUCTOR ]
