參數(shù)資料
型號(hào): DS1339C-2
英文描述: I2C Serial Real-Time Clock
中文描述: I2C串行實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù): 4/18頁(yè)
文件大小: 279K
代理商: DS1339C-2
DS1339 I
2
C Serial Real-Time Clock
4 of 18
AC ELECTRICAL CHARACTERISTICS
(V
CC
= MIN to MAX, T
A
= -40°C to +85°C.) (Note 12)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Fast mode
100
400
SCL Clock Frequency
f
SCL
Standard mode
100
kHz
Fast mode
1.3
Bus Free Time Between a STOP
and START Condition
t
BUF
Standard mode
4.7
s
Fast mode
0.6
Hold Time (Repeated) START
Condition (Note 7)
t
HD:STA
Standard mode
4.0
s
Fast mode
1.3
LOW Period of SCL Clock
t
LOW
Standard mode
4.7
s
Fast mode
0.6
HIGH Period of SCL Clock
t
HIGH
Standard mode
4.0
s
Fast mode
0.6
Setup Time for a Repeated
START Condition
t
SU:STA
Standard mode
4.7
s
Fast mode
0
0.9
Data Hold Time (Notes 8, 9)
t
HD:DAT
Standard mode
0
s
Fast mode
100
Data Setup Time (Note 10)
t
SU:DAT
Standard mode
250
ns
Fast mode
20 + 0.1C
B
300
Rise Time of Both SDA and SCL
Signals (Note 11)
t
R
Standard mode
20 + 0.1C
B
20 + 0.1C
B
1000
ns
Fast mode
300
Fall Time of Both SDA and SCL
Signals (Note 11)
t
F
Standard mode
20 + 0.1C
B
300
ns
Fast mode
0.6
Setup Time for STOP Condition
t
SU:STO
Standard mode
4.0
s
Capacitive Load for Each Bus
Line (Note 11)
C
B
400
pF
I/O Capacitance (SDA, SCL)
C
I/O
(Note 12)
10
pF
Oscillator Stop Flag (OSF) Delay
t
OSF
(Note 13)
100
ms
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