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DS1306_05 Datasheet, PDF (17/21 Pages) Dallas Semiconductor – Serial Alarm Real-Time Clock
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DS1306
3-WIRE AC ELECTRICAL CHARACTERISTICS
(TA = Over the operating range, unless otherwise specified.) (Figure 10 and Figure 11)
PARAMETER
SYMBOL
MIN TYP MAX UNITS
Data to CLK Setup
tDC
VCC = 2.0V
VCC = 5V
200
50
ns
CLK to Data Hold
tCDH
VCC = 2.0V
VCC = 5V
280
70
ns
CLK to Data Delay
tCDD
VCC = 2.0V
VCC = 5V
800
200
ns
CLK Low Time
tCL
VCC = 2.0V
VCC = 5V
1000
250
ns
CLK High Time
tCH
VCC = 2.0V
VCC = 5V
1000
250
ns
CLK Frequency
tCLK
VCC = 2.0V
VCC = 5V
DC
0.6
2.0
MHz
CLK Rise and Fall
tR, tF
VCC = 2.0V
VCC = 5V
2000
500
ns
CE to CLK Setup
tCC
VCC = 2.0V
VCC = 5V
4
1
ms
CLK to CE Hold
tCCH
VCC = 2.0V
VCC = 5V
240
60
ns
CE Inactive Time
tCWH
VCC = 2.0V
VCC = 5V
4
1
ms
CE to Output High-Z
tCDZ
VCC = 2.0V
VCC = 5V
280
70
ns
SCLK to Output High-Z
tCCZ
VCC = 2.0V
VCC = 5V
280
70
ns
NOTES
3, 4
3, 4
3, 4, 5
4
4
4
4
4
4
3, 4
3, 4
17 of 21
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