Document
ILX3483N, ILX3485N, ILX3486N
Microcircuit ILX3483N, ILX3485N, ILX3486 N (functional equivalents of MAX3483/ MAX3485/ MAX3486 MAXIM (USA)) - interface transceiver of the serial data of the standard RS - 485/422.
Microcircuit is interface transceiver (transmitter-
receiver) of serial data of RS - 485, RS – 422 standarts with
low supply voltage (3V).
Microcircuit is purposed for application in low power
telecom systems,
that correspond to RS – 485,
RS – 422 standards, level translators, transceiver units
& E-field sensitive automation systems of industrial devices.
08 01
Fig. 1 - MS-001BA packages
Functions and structure:
- Microcircuit contains 1 transmitter and 1 receivers of the serial data of the standards RS-485/422;
- Low dissipated power;
- One power supply voltage source UCC = (3,0 – 3,6) V;.
- Maximum data transfer rate 0,25 Mbit/s (ILX3483N); 12 Mbit/s (ILX3485N); 2,5 Mbit/s (ILX3486N);
- Temperature range -40 …+ 85 °C;
- Permissible value of static electricity potential: for inputs of the transmitter and outputs of the receiver 2000 V; for inputs of the receiver and outputs of the transmitter 4000 V;
- Latch current not less than 300 mA for normal climatic conditions and supply voltage 3,3 V.
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ILX3483N, ILX3485N, ILX3486N
RO 01 RE 02 DE 03 DI 04
08 Vcc 07 B 06 A 05 GND
Fig. 2 – Pin configuration
Table 1 – Pin description
Pin number
Symbol
01 RO
02 RE
03 DE
04 DI
05 GND
06 A
07 B
08 VCC
Description Receiver output Receiver output enable pin Transmitter output enable pin Transmitter input Common pin Receiver/transmitter uncomplemented I/O pin Receiver/transmitter complemented I/O pin Supply voltage pin
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ILX3483N, ILX3485N, ILX3486N
R RO
RE DE
D DI
B A
Vcc - (08)
GND - (05)
Fig. 3 – Block diagram
Table 2 – Transmitter truth table
Inputs
RE DE
Н or L
Н
Н or L
Н
LL
H* L*
Note - Н – high level voltage;
L – low level voltage.
_______________
* Shout-down mode
DI
Н L Н or L Н or L
Table 3 – Receiver truth table
Inputs
RE DE
LL
LL
LL H* L* Note - Н – high level voltage; L – low level voltage. _______________
* Shout-down mode
A-B
≥ +0,2 V ≤ -0,2 V Input not used Н or L
Outputs
BA
LН
НL
«OFF» state
«OFF» state
«OFF» state
«OFF» state
Output RO
H L H «OFF» state
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ILX3483N, ILX3485N, ILX3486N
Table 4 – Absolute maximum ratings
Symbol
Parameter
UCC Supply voltage
UI DI, DE, RE pins input voltage
UOD Voltage applied to transmitter output URIN Receiver input voltage UOR Voltage applied to receiver output
Norm Min Max
- 7,0 -0,3 7,0
-7,5 12,5 -7,5 12,5 -0,3 UCC+0,3
Unit
V V
V V V
Table 5 – Recommended operating mode
Symbol
UCC UIL
UIH
UOD URIN UOR UTH
Parameter
Supply voltage
DI, DE, RE pins low level input voltage
DI, DE, RE pins high level input voltage
Voltage applied to transmitter output Receiver input voltage Voltage applied to receiver output Receiver differential threshold voltage
Norm Min Max 3,0 3,6
0 0,8
2,0 UCC
-7,0 12,0 -7,0 12,0
0 UCC -0,2 0,2
Unit
V V
V
V V V V
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ILX3483N, ILX3485N, ILX3486N
Table 6 – Electric parameters
Symbol
Parameter
Mode of measurement
IILL
Low level input leakage current
UDE=UDI=URE=0V UCC = 3,6 V
IILH ICC
ISHDN tSHDN
High level input leakage current Supply current
Shutdown mode supply current
Time of transition to low power consumption mode
UDE=UDI=URE= UCC UCC = 3,6 V URE = 0 V or UCC UDI = 0 V or UCC UDE = UCC UCC = 3,6 V URE = 0 V UDI = 0 V or UCC UDE = 0 UCC = 3,6 V UDE = 0 URE = UCC UDI = 0 V or UCC UCC = 3,6 V
UCC = 3,3 V
Receiver parameters
Low level output voltage UOL
High level output voltage UOH
UID=UTH=-190 mV IOL= 2,5 mA UID=UTH=-200 mV IOL= 2,5 mA UID= UTH=190 mV IOH= - 1,5 mA UID= UTH=200 mV IOH= - 1,5 mA
RIN Receiver input resistance
IIN2 Input current
IOZLR IOZHR IOSHR IOSLR
Low level output current for “OFF”state
High level output current for “OFF”state
High level short circuit output current
Low level short circuit output current
- 7 V ≤ URIN ≤ 12 V
URIN=12V URIN = -7V URIN =12V
UDE =0V UCC =3,6V
URIN = -7V
UOR = 0 V UCC=3,6 V
UOR = UCC UCC=3,6 V
UIH = 3,0 V; UIL = 0 V
UOR =3,6V; UCC =3,6V
UIH = 3,0 V; UIL = 0 V UOR = 0 V; UCC = 3,6 V
Norm Min Max
- -0,2 -2,0
- 0,2 2,0
- 1,9
2,2
1,6
1,9
0,7 – 1,0
80 300
0,36 –
0,40
UCC –0,4 –
12 -
0,95
–
-0,7 1,0
-0,8
–
-0,5 -1,0
–
0,5 1,0
9,0 50
8,0 60
-9,0 -50
-8,0 -60
TA, oC 25 ± 10 -40; 85 25 ± 10 -40; 85 25 ± 10
-40; 85
25 ± 10
-40; 85
25 ± 10
-40; 85
25 ± 10
25 ± 10
-40; 85
25 ± 10
-40; 85 25±10; -40; 85 25 ± 10
-40; 85 25 ± 10 -40; 85 25 ± 10 -40; 85 25 ± 10 -40; 85 25 ± 10 -40; 85
Unit uA uA
mA
uA ns
V
V kΩ mA uA uA mA mA
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ILX3483N, ILX3485N, ILX3486N
Table 6 continued
Symbol tPHLR (tPLHR) tPZHR (tPZLR) tPHZR (tPLZR) tSKD
tPSLR tPSHR
UOD
δUOD UOC δUOC
Parameter
Mode of measurement
Receiver parameters
OFF-ON switching propagation delay,
ILX.