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ML145406 bảng dữ liệu(PDF) 2 Page - LANSDALE Semiconductor Inc.

tên linh kiện ML145406
Giải thích chi tiết về linh kiện  Driver/Receiver EIA 232-E and CCITT V.28 (Formerly RS-232-D)
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nhà sản xuất  LANSDALE [LANSDALE Semiconductor Inc.]
Trang chủ  http://www.lansdale.com
Logo LANSDALE - LANSDALE Semiconductor Inc.

ML145406 bảng dữ liệu(HTML) 2 Page - LANSDALE Semiconductor Inc.

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Issue A
LANSDALE Semiconductor, Inc.
ML145406
MAXIMUM RATINGS (Voltage polarities referenced to GND)
Rating
Symbol
Value
Unit
DC Supply Voltages (VDD ≥ VCC)
VDD
VSS
VCC
– 0.5 to + 13.5
+ 0.5 to – 13.5
– 0.5 to + 6.0
V
Input Voltage Range
Rx1–3 Inputs
DI1–3 Inputs
VIR
(VSS – 15) to (VDD + 15)
– 0.5 to (VCC + 0.5)
V
DC Current Per Pin
± 100
mA
Power Dissipation
PD
1.0
W
Operating Temperature Range
TA
– 40 to + 85
°C
Storage Temperature Rate
Tstg
– 85 to + 150
°C
DC ELECTRICAL CHARACTERISTICS (All polarities referenced to GND = 0 V, TA = – 40 to +85°C)
Parameter
Symbol
Min
Typ
Max
Unit
DC Supply Voltage
VDD
VSS
VCC (VDD ≥ VCC)
VDD
VSS
VCC
4.5
– 4.5
4.5
5 to 12
– 5 to – 12
5.0
13.2
– 13.2
5.5
V
Quiescent Supply Current (Outputs unloaded, inputs low)
VDD = + 12 V
VSS = – 12 V
VCC = + 5 V
IDD
ISS
ICC
140
340
300
400
600
450
µA
RECEIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V, VDD = + 5 to + 12 V, VSS = – 5 to – 12 V, VDD ≥ VCC, TA = – 40 to + 85°C)
Characteristic
Symbol
Min
Typ
Max
Unit
Input Turn–on Threshold
Rx1–Rx3
VDO1–DO3 = VOL, VCC = 5.0 V ± 5%
Von
1.35
1.80
2.35
V
Input Turn–off Threshold
Rx1–Rx3
VDO1–DO3 = VOH, VCC = 5.0 V ± 5%
Voff
0.75
1.00
1.25
V
Input Threshold Hysteresis
Rx1–Rx3
VCC = 5.0 V ± 5%
Von–Voff
0.6
0.8
V
Input Resistance
Rx1–Rx3
(VSS – 15 V) ≤ VRx1–Rx3 ≤ (VDD + 15 V)
Rin
3.0
5.4
7.0
k
High–Level Output Voltage (VRx1–Rx3 = – 3 V to (VSS – 15 V))*
DO1–DO3
IOH = – 20 µA, VCC = + 5.0 V
IOH = –1 mA, VCC = + 5.0 V
VOH
4.9
3.8
4.9
4.3
V
Low–Level Output Voltage (VRx1–Rx3 = + 3 V to (VDD + 15 V))* DO1–DO3
IOL = + 20 µA, VCC = + 5.0 V
IOL = + 2 mA, VCC = + 5.0 V
IOL = + 4 mA, VCC = + 5.0 V
VOL
0.01
0.02
0.5
0.1
0.5
0.7
V
* This is the range of input voltages as specified by EIA 232–E to cause a receiver to be in the high or low logic state.
This device contains protection circuitry to pro-
tect the inputs against damage due to high static
voltages or electric fields; however, it is advised
that normal precautions be taken to avoid applica-
tion of any voltage higher than maximum rated
voltages to this high impedance circuit. For proper
operation, it is recommended that the voltages at
the DI and DO pins be constrained to the range
GND
≤VDI≤VCCandGND≤VDO≤VCC.Also,the
voltage at the Rx pin should be constrained to
(VSS – 15 V) ≤ VRx1–3 ≤ (VDD + 15 V), and Tx
should be constrained to VSS ≤ VTx1–3 ≤ VDD.
Unused inputs must always be tied to an ap-
propriate logic voltage level (e.g., GND or VCC for
DI and Ground for Rx.)


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