DS1877T-TR 查看數據表（PDF） - Maxim Integrated
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DS1877T-TR Datasheet PDF : 65 Pages
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SFP Controller for Dual Rx Interface
ANALOG QUICK-TRIP CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, unless otherwise noted.)
PARAMETER
RSSI Full-Scale Voltage
Input Resistance
Resolution
Error
Integral Nonlinearity
Differential Nonlinearity
Temperature Drift
Offset
SYMBOL
CONDITIONS
TA = +25°C
MIN TYP MAX UNITS
1.25
V
35
50
65
kW
8
Bits
±2
%FS
-1
+1
LSB
-1
+1
LSB
-2
+2
%FS
-5
+10
mV
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 (Note 5)
tREP
CONDITIONS
MIN TYP MAX UNITS
20
ms
12.8
Fs
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
MIN TYP MAX UNITS
-3
+3
NC
I2C AC ELECTRICAL CHARACTERISTICS
(VCC = +2.85V to +3.9V, TA = -40NC to +95NC, unless otherwise noted. Timing is referenced to VIL(MAX) and VIH(MIN).) (Figure 12)
PARAMETER
SCL Clock Frequency
Clock Pulse-Width Low
Clock Pulse-Width High
Bus Free Time Between STOP and
START Condition
SYMBOL
fSCL
tLOW
tHIGH
(Note 8)
tBUF
CONDITIONS
MIN TYP MAX UNITS
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 9)
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 9)
tSU:STO
CB
tWR
(Note 10)
20 +
0.1CB
0.6
300
ns
Fs
400
pF
20
ms
7
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