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PDF MAX3161E Data sheet ( Hoja de datos )
| Número de pieza | MAX3161E | |
| Descripción | RS-232/RS-485 / RS-422 Multiprotocol Transceivers | |
| Fabricantes | Maxim Integrated | |
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Hay una vista previa y un enlace de descarga de MAX3161E (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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EVALUATION KIT AVAILABLE
MAX3160E/MAX3161E/MAX3162E
±15kV ESD-Protected, +3.0V to
+5.5V, 10nA, RS-232/RS-485/
RS-422 Multiprotocol Transceivers
General Description
The MAX3160E/MAX3161E/MAX3162E are programma-
ble RS-232/RS-485/RS-422 multiprotocol transceivers.
The MAX3160E/MAX3161E are pin programmable as a
2Tx/2Rx RS-232 interface or a single RS-485/RS-422
transceiver. The MAX3162E is configured as a 2Tx/2Rx
RS-232 interface, and a single RS-485/RS-422 trans-
ceiver simultaneously.
The MAX3160E/MAX3161E/MAX3162E feature
enhanced electrostatic discharge (ESD) protection. All
of the transmitter outputs and receiver inputs are pro-
tected to ±15kV using the Human Body Model.
All devices incorporate a proprietary low-dropout trans-
mitter output stage, and an on-board dual charge
pump to allow RS-232- and RS-485-/RS-422-compliant
performance from a +3V to +5.5V supply. These
devices also feature pin-selectable transmitter slew
rates for RS-232 and RS-485/RS-422 modes. Slew-rate
limiting minimizes EMI and reduces reflections caused
by improperly terminated cables, allowing error-free
data transmission up to 250kbps. Disabling slew-rate
limiting allows these devices to transmit at data rates
up to 10Mbps in RS-485/RS-422 mode and up to
1Mbps in RS-232 mode.
The MAX3160E/MAX3162E offer a flow-through pin-
out that facilitates board layout. The MAX3160E/
MAX3161E/MAX3162E are available in tiny SSOP pack-
ages and operate up to -40°C to +85°C temperature
ranges.
Benefits and Features
• Flexible Options for RS-232 and RS-422/485
Operation In One Package
• Simultaneous 2Tx/2Rx RS-232 and Half-Duplex
RS-485 Transceiver Operation (MAX3162E)
• Pin-Programmable As Either 2Tx/2Rx RS-232 or
Half/Full RS-485 Transceiver (MAX3160E,
MAX3161E)
• Integrated Protection Increases Robustness
• High ±15kV ESD HBM per JEDEC JS-001-2012
• Transmitters and Receivers Protected Against
Wiring Faults
• True Fail-Safe Receiver Prevents False Transition
on Receiver Input Short or Open
• Short-Circuit Protection Over the Entire Common-
Mode Voltage Range
• Thermal Protection from Excessive Power
Dissipation
• Slew Rate Limiting Minimizes EM and Reduces
Cable Reflections
• Integrated Charge Pump Circuitry Saves Board
Space
• Eliminates the Need for a Bipolar ±12V Supply
• Enables Single Supply Operation From +3V to
+5.5V Voltage Supply
• 1µA Shutdown Supply Current Saves Power
• Allows Up To 256 Transceivers on the Bus
Applications
Point-of-Sales Equipment
Industrial Controls
RS-232 to RS-485
Interface Converters
Peripherals
Networking
Security Systems
Typical Operating Circuit
+3V TO +5.5V
TX
13
RTS
MAX3100 11
RX
12
CTS
10
SPI
2
VCC
RS-485/RS232
11
MAX3160E
DI/T1IN
16
Z(B)/T1OUT 5
DE485/T2IN
15
Y(A)/T2OUT
6
8 RO/R2OUT
A/R2IN
13
R1OUT
7
B/R1IN
14
GND FAST HDPLX SHDN
4 10 12 9
RJ45
DB9
Ordering Information appears at end of data sheet.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
µP SHDN
19-3580; Rev 1; 5/15
1 page  
MAX3160E/MAX3161E/MAX3162E
±15kV ESD-Protected, +3.0V to
+5.5V, 10nA, RS-232/RS-485/
RS-422 Multiprotocol Transceivers
Electrical Characteristics (continued)
(VCC = +3V to +5.5V, C1–C4 = 0.1µF when tested at +3.3V ±10%; C1 = 0.047µF and C2, C3, C4 = 0.33µF when tested at +5V±10%;
TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
RS-485/RS-422 DRIVER TIMING CHARACTERISTICS FAST MODE, FAST = VCC, 10Mbps)
Differential Driver Propagation
Delay
tDPHL,
tDPLH
RDIFF = 54Ω, CL = 50pF, Figures 3, 7
60 120 ns
Differential Driver Rise and Fall
Times
tDR, tDF RDIFF = 54Ω, CL = 50pF, Figures 3, 7
10 25 ns
Differential Driver Propagation
Delay Skew
tDSKEW RDIFF = 54Ω, CL = 50pF, Figures 3, 7
Driver Output Enable Time
tDZH,tDZL CL = 50pF, Figures 4, 8
Driver Output Disable Time
tDHZ,tDLZ CL = 50pF, Figures 4, 8
RS-485/RS-422 RECEIVER TIMING CHARACTERISTICS
Receiver Propagation Delay
Receiver Propagation Delay
Skew
tRPLH,
tRPHL
tRSKEW
CL = 15pF, Figures 9, 11
CL = 15pF, Figures 9, 11
Receiver Output Enable Time
Receiver Output Disable Time
tRZL, tRZH MAX3162E, CL = 50pF, Figures 2, 10
tRLZ, tRHZ MAX3162E, CL = 15pF, Figures 2, 10
ESD PROTECTION
R_IN, T_OUT, A, B, Y, Z
Human Body Model
10
400 900
200 400
ns
ns
ns
80 150
1 10
100
100
±15
ns
ns
ns
ns
kV
Note 2: All currents into the device are positive. All currents out of the device are negative.
Note 3: Applies to A, B for MAX3162E and MAX3160E/MAX3161E with HDPLX = GND, or Y, Z for MAX3160E/MAX3161E with
HDPLX = VCC.
Typical Operating Characteristics
(VCC = +3.3V, 250kbps data rate, CBYPASS, C1, C2, C3, C4 = 0.1µF, all RS-232 transmitters (RS-232 mode) loaded with 3kΩ to
ground, TA = +25°C, unless otherwise noted.)
RS-232 TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE (FAST = GND)
10.00
7.50
5.00
2.50
0
-2.50
-5.00
-7.50
-10.00
0
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
RS-232 TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE (FAST = VCC)
10.00
DATA RATE = 1Mbps
7.50
5.00
2.50
0
-2.50
-5.00
-7.50
-10.00
0
500 1000 1500 2000 2500
LOAD CAPACITANCE (pF)
RS-232 TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE (FAST = GND)
18
16
14 RISING
12
FALLING
10
8
6
4
2
0
0 1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
www.maximintegrated.com
Maxim Integrated | 5
5 Page 
MAX3160E/MAX3161E/MAX3162E
±15kV ESD-Protected, +3.0V to
+5.5V, 10nA, RS-232/RS-485/
RS-422 Multiprotocol Transceivers
MAX3160E Functional Diagram
VCC
C1
1 C1+
2 VCC
3 C1-
CBYPASS
4 GND
RS-232
OUTPUTS
5
6
LOGIC
OUTPUTS
7
8
9 SHDN
10 FAST
RS-232 MODE
CHARGE
PUMP
T1
T2
R1
R2
V+ 20
C2+ 19
C2- 18
C3
C2
V- 17
16
15
C4
LOGIC
INPUTS
14
RS-232
INPUTS
13
MAX3160E
HDPLX 12
RS-485/RS-232 11
VCC
C1
1 C1+
2 VCC
3 C1-
CBYPASS
4 GND
RS-485
OUTPUTS
5
6
Z
Y
7
RS-485 MODE
CHARGE
PUMP
V+ 20
C2+ 19
C2- 18
V- 17
D
DE485
16
15
B 14
LOGIC
OUTPUT
8
R0
R
A 13
9 SHDN
10 FAST
12
HDPLX
MAX3160E
RS-485/RS-232 11
C2
C3
C4
LOGIC
INPUTS
RS-485
INPUTS
LOGIC
INPUT
www.maximintegrated.com
Maxim Integrated | 11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet MAX3161E.PDF ] | |
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