DS1339 Maxim, DS1339 Datasheet - Page 4

• Manufacturer Part Number: DS1339
• Description: The DS1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output
• Manufacturer: Maxim

AC ELECTRICAL CHARACTERISTICS
(V
SCL Clock Frequency
Bus Free Time Between a STOP
and START Condition
Hold Time (Repeated) START
Condition (Note 10)
LOW Period of SCL Clock
HIGH Period of SCL Clock
Setup Time for a Repeated
START Condition
Data Hold Time (Notes 11, 12)
Data Setup Time (Note 13)
Rise Time of Both SDA and SCL
Signals (Note 14)
Fall Time of Both SDA and SCL
Signals (Note 14)
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line (Note 14)
I/O Capacitance (SDA, SCL)
Oscillator Stop Flag (OSF) Delay
CC
= MIN to MAX, T
PARAMETER
A
= -40°C to +85°C.) (Note 9)
SYMBOL
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STO
SU:STA
t
t
t
C
t
f
HIGH
LOW
C
BUF
OSF
SCL
t
t
R
F
I/O
B
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
(Note 9)
(Note 15)
4 of 20
CONDITION
20 + 0.1C
20 + 0.1C
20 + 0.1C
20 + 0.1C
MIN
100
100
250
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.0
DS1339 I
0
0
B
B
B
B
TYP
100
2
C Serial Real-Time Clock
MAX
1000
400
100
300
300
300
400
0.9
10
UNITS
kHz
ms
pF
pF
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs