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参数资料
| 型号： | DS276 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Line Driver or Receiver |
| 英文描述： | LINE TRANSCEIVER, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 9/15页 |
| 文件大小： | 1575K |
| 代理商： | DS276 |
3
Maxim Integrated
40Mbps, +3.3V, RS-485 Half-Duplex
Transceivers
MAX14840E/MAX14841E
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.0V to +3.6V, TA = -40NC to +125NC, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25NC.) (Notes 2, 3)
SWITCHING CHARACTERISTICS
(VCC = +3.0V to +3.6V, TA = -40NC to +125NC, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25NC.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Receiver Differential Threshold
Voltage (MAX14840E Only)
VTHF
-7V P VCM P 12V, VOD falling
-200
-10
mV
VTHR
-7V P VCM P 12V, VOD rising
10
200
mV
Receiver Input Hysteresis
(MAX14840E Only)
VCM = 0V
20
170
mV
Receiver Differential Threshold
Voltage (MAX14841E Only)
VTH
-7V P VCM P 12V
-200
-105
-10
mV
Receiver Input Hysteresis
(MAX14841E Only)
D
VTH
VCM = 0V
10
mV
LOGIC INTERFACE
Input High Voltage
VIH
DE, DI
2.0
5.5
V
RE
2.0
Input Low Voltage
VIL
DE, DI, RE
0.8
V
Input Hysteresis
VHYS
DE, DI, RE
50
mV
Input Current
IIN
DE, DI, RE
-1
+1
F
A
Input Impedance on First
Transition
DE, RE
1
10
kI
Output High Voltage
VOH
RE = GND, IO = -1mA, VA - VB > 200mV
VCC -
1.5
V
Output Low Voltage
VOL
RE = GND, IO = 1mA, VA - VB < -200mV
0.4
V
Three-State Output Current at
Receiver
IOZR
RE = VCC, 0V P VO P VCC
-1
+1
F
A
Receiver Output Short-Circuit
Current
IOSR
0V P VRO P VCC
-95
+95
mA
PROTECTION
Thermal Shutdown Threshold
TTS
160
N
C
Thermal Shutdown Hysteresis
TTSH
15
N
C
ESD Protection: A, B to GND
IEC 61000-4-2 Air Gap Discharge
Q
20
kV
IEC 61000-4-2 Contact Discharge
Q
12
HBM
Q
35
ESD Protection: All Other Pins
HBM
Q
2
kV
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER
Propagation Delay
tDPLH
RL = 54I, CL = 50pF, Figures 2 and 3
(Note 5)
5
12
20
ns
tDPHL
5
12
20
Differential Driver Output Skew
|tDPLH - tDPHL|
tDSKEW
RL = 54I, CL = 50pF, Figures 2 and 3
(Notes 5, 8)
2
ns
Driver Differential Output Rise or
Fall Time
tHL, tLH
RL = 54I, CL = 50pF, Figures 2 and 3
(Notes 5, 8)
7.5
ns
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