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DS1306_05 Datasheet, PDF (19/21 Pages) Dallas Semiconductor – Serial Alarm Real-Time Clock
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SPI AC ELECTRICAL CHARACTERISTICS
(TA = Over the operating range, unless otherwise specified.)
PARAMETER
SYMBOL
MIN
Data to CLK Setup
tDC
VCC = 2.0V
VCC = 5V
200
50
CLK to Data Hold
tCDH
VCC = 2.0V
VCC = 5V
280
70
CLK to Data Delay
tCDD
VCC = 2.0V
VCC = 5V
CLK Low Time
tCL
VCC = 2.0V
VCC = 5V
1000
250
CLK High Time
tCH
VCC = 2.0V
VCC = 5V
1000
250
CLK Frequency
tCLK
VCC = 2.0V
VCC = 5V
DC
CLK Rise and Fall
tR, tF
VCC = 2.0V
VCC = 5V
CE to CLK Setup
tCC
VCC = 2.0V
VCC = 5V
4
1
CLK to CE Hold
tCCH
VCC = 2.0V
VCC = 5V
240
60
CE Inactive Time
tCWH
VCC = 2.0V
VCC = 5V
4
1
CE to Output High-Z
tCDZ
VCC = 2.0V
VCC = 5V
TYP
MAX
800
200
0.6
2.0
2000
500
280
70
DS1306
UNITS NOTES
ns
3, 4
ns
3, 4
ns
3, 4, 5
ns
4
ns
4
MHz
4
ns
ms
4
ns
4
ms
4
ns
3, 4
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