DS1305
TIMING DIAGRAM: 3-WIRE WRITE DATA TRANSFER
Figure 13
SPI AC ELECTRICAL CHARACTERISTICS
(0擄C to 70擄C or -40擄C to +85擄C; V
CC
= 2.0 to 5.5V*)
PARAMETER
Data to CLK Setup
CLK to Data Hold
CLK to Data Delay
CLK Low Time
CLK High Time
CLK Frequency
CLK Rise and Fall
CE to CLK Setup
CLK to CE Hold
CE Inactive Time
CE to Output High Z
t
DC
t
CDH
t
CDD
t
CL
t
CH
t
CLK
t
R,
t
F
t
CC
t
CCH
t
CWH
t
CDZ
SYMBOL
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
V
CC
=2.0V
V
CC
=5V
MIN
200
50
280
70
800
200
1000
250
1000
250
DC
0.6
2.0
2000
500
TYP
MAX
UNITS
ns
ns
ns
ns
ns
MHz
ns
碌s
ns
碌s
280
70
ns
6
6
6
5,6
NOTES
5,6
5,6
5,6,7
6
6
6
4
1
240
60
4
1
* Unless otherwise noted.
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