DS1021
CASCADING MULTIPLE DEVICES (DAISY CHAIN) Figure 3
DS1021
DS1021
DS1021
PART NUMBER TABLE Table 1
DELAYS AND TOLERANCES (IN ns)
PART NUMBER
STEP ZERO
MAX DELAY
TIME (NOM)
DELAY CHANGE
MAX DEVIATION FROM
PROGRAMMED DELAY
DS1020-25
DS1020-50
DE1L0AY±T2IME
73.75
137.5
PER S0TE.2P5(NOM)
±6
±8
10 ± 2
0.5
DELAY VS. PROGRAMMED VALUE Table 2
∬
BINARY
0
0
0
0
0
0
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
P7
P6
P5
P4
P3
P2
P1
P0
MSB
LSB
PROGRAMMED
VALUE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
PART
0
0
1
1
0
0
NUMBER
0
1
0
1
0
1
DS1021-25
DS1021-50
10.00
10.0
10.25
10.5
10.50
11.0
10.75
11.5
11.00
12.0
11.25
12.5
73.25 73.50 73.75
136.5 137.0 137.5
∬
All delays in nanoseconds, referenced to input pin.
4 of 9
DALLAS [ DALLAS SEMICONDUCTOR ]
