DS1876 查看數據表（PDF） - Maxim Integrated
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DS1876 Datasheet PDF : 69 Pages
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DS1876
SFP Controller with Dual LDD Interface
DIGITAL THERMOMETER CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, unless otherwise noted.)
PARAMETER
Thermometer Error
SYMBOL
CONDITIONS
TERR -40NC to +95NC
AC ELECTRICAL CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, unless otherwise noted.)
PARAMETER
TXD_ Enable
Recovery from TXD_ Disable
(Figure 2)
SYMBOL
CONDITIONS
tOFF From ↑ TXD_
tON
From ↓ TXD_
Fault Reset Time (to TXFOUT = 0)
Fault Assert Time (to TXFOUT = 1)
tINITR1
tINITR2
tFAULT
From ↓ TXD_
On power-up or ↓ TXD_, when VCC LO
alarm is detected (Note 5)
After HTXP_, LTXP_, HBATH_
MIN TYP MAX UNITS
-3
+3
NC
MIN TYP MAX UNITS
5
Fs
1
ms
131
ms
161
1.6
10.5
Fs
QUICK-TRIP TIMING CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, unless otherwise noted.)
PARAMETER
Output-Enable Time Following POA
Sample Time per Quick-Trip
Comparison
SYMBOL
tINIT
tREP
CONDITIONS
MIN TYP MAX UNITS
20
ms
1.6
Fs
I2C AC ELECTRICAL CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, timing referenced to VIL(MAX) and VIH(MIN), unless otherwise noted. See the I2C
Communication section.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SCL Clock Frequency
Clock Pulse-Width Low
Clock Pulse-Width High
Bus Free Time Between STOP and
START Condition
fSCL
tLOW
tHIGH
tBUF
(Note 6)
0
400
kHz
1.3
Fs
0.6
Fs
1.3
Fs
START Hold Time
START Setup Time
Data Out Hold Time
Data In Setup Time
Rise Time of Both SDA and SCL
Signals
tHD:STA
tSU:STA
tHD:DAT
tSU:DAT
tR
(Note 7)
0.6
0.6
0
100
20 +
0.1CB
Fs
Fs
0.9
Fs
ns
300
ns
Fall Time of Both SDA and SCL
Signals
STOP Setup Time
Capacitive Load for Each Bus Line
EEPROM Write Time
tF
(Note 7)
tSU:STO
CB
tWR
(Note 8)
20 +
0.1CB
0.6
300
ns
Fs
400
pF
20
ms
Maxim Integrated
7
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