DS21348 Dallas Semiconducotr, DS21348 Datasheet - Page 67

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DS21348

Manufacturer Part Number
DS21348
Description
3.3V E1/T1/J1 Line Interface
Manufacturer
Dallas Semiconducotr
Datasheet

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AC CHARACTERISTICS—SERIAL PORT
(BIS1 = 1, BIS0 = 0)
Setup Time CS* to SCLK
Setup Time SDI to SCLK
Hold Time SCLK to SDI
SCLK High/Low Time
SCLK Rise/Fall Time
SCLK to CS* Inactive
CS* Inactive Time
SCLK to SDO Valid
SCLK to SDO 3-State
CS* Inactive to SDO 3-State
See
SERIAL BUS TIMING (BIS1 = 1, BIS0 = 0) Figure 12-8
NOTES:
1) OCES =1 and ICES = 0.
2)
OCES = 0 and ICES = 1.
SCLK
SCLK
SDO
CS*
SDI
PARAMETER
1
2
t
t
SSS
CSS
LSB
t
HIGH Z
SSH
SYMBOL
t
SRF
t
t
t
t
t
t
t
t
t
t
SLH
CSH
CSS
SSH
SRF
LSC
SSV
SSH
SSS
CM
MSB
t
SLH
LSB
LSB
67 of 73
MIN
200
250
50
50
50
50
t
(-40°C to +85°C; V
SSV
TYP
100
100
MAX
MSB
t
MSB
LSC
50
50
t
SSH
t
CM
HIGH Z
t
CSH
UNITS
DD
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
= 3.3V ± 5%)
NOTES

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