MAX3320ACAP 데이터 시트보기 (PDF) - Maxim Integrated
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MAX3320ACAP
Maxim Integrated
MAX3320ACAP Datasheet PDF : 12 Pages
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3V to 5.5V, up to 250kbps True RS-232 Transceiver
with 4µA AutoShutdown Plus and Power-On Reset
TIMING CHARACTERISTICS
(VCC = 3V to 5.5V, C1–C4 = 0.1µF, C1–C4 = 0.1µF (for 3.3V ±10%), C1 = 0.047µF, C2–C4 = 0.33µF (tested at 5V ±10%),
TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Maximum Data Rate
RL = 3kΩ, CL = 1000pF, one transmitter switching
250
kbps
Receiver Propagation Delay
R_IN to R_OUT, CL = 150pF
tPHL
tPLH
Transmitter Skew
| tPHL - tPLH |
Receiver Skew
| tPHL - tPLH |
0.3
µs
0.3
100
ns
200
ns
VCC = 3.3V, RL = 3kΩ to 7kΩ,
CL = 150pF to
1000pf
6
Transition-Region Slew Rate
measured from +3V to -3V or -3V to
+3V, TA = +25°C
CL = 150pF to
2500pf
4
30
V/µs
30
VCC to RESET Delay
100mV overdrive from reset threshold
40
µs
RESET Active Timeout Period VCC = reset threshold
100
280
ms
__________________________________________Typical Operating Characteristics
(VCC = 3.3V, 250kbps data rate, C1–C4 = 0.1µF, all transmitters loaded with 3kΩ. Typical values are at TA = +25°C, unless
otherwise noted.)
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
7.5
VT_OUT+
5.0
ONE TRANSMITTER AT 250kbps
ONE TRANSMITTER AT 15.6kbps
2.5 LOAD = 3kΩ + CL
0
-2.5
-5.0
-7.5
0
VT_OUT-
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
SLEW RATE
vs. LOAD CAPACITANCE
12
10
NEGATIVE
SLEW
8
POSITIVE
SLEW
6
4
ONE TRANSMITTER AT 250kbps
2 ONE TRANSMITTER AT 15.6kbps
LOAD = 3kΩ + CL
0
0
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
SUPPLY CURRENT
vs. LOAD CAPACITANCE WHEN
TRANSMITTING DATA
45
ONE TRANSMITTER AT
40 FULL DATA RATE INDICATED
35 ONE TRANSMITTER AT
1/16 DATA RATE INDICATED
30
250kbps
25
20
120kbps
15
10
20kbps
5
0
0
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
4 _______________________________________________________________________________________
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