MAX3160CAP+T Maxim Integrated Products, MAX3160CAP+T Datasheet

IC TXRX RS232/485/422 20SSOP

MAX3160CAP+T

Manufacturer Part Number
MAX3160CAP+T
Description
IC TXRX RS232/485/422 20SSOP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX3160CAP+T

Number Of Drivers/receivers
2/2
Protocol
RS232, RS422, RS485
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX3160/MAX3161/MAX3162 are programmable
RS-232/RS-485/422 multiprotocol transceivers. The
MAX3160/MAX3161 are pin programmable as a 2TX/2RX
RS-232 interface or a single RS-485/422 transceiver. The
MAX3162 is configured as a 2TX/2RX RS-232 interface
and a single RS-485/422 transceiver simultaneously.
All devices incorporate a proprietary low-dropout trans-
mitter output stage and an on-board dual charge pump
to allow RS-232 and RS-485/422 compliant perfor-
mance from a +3V to +5.5V supply. The receivers
feature true fail-safe circuitry that guarantees a logic-
high receiver output when the receiver inputs are open
or shorted. These devices also feature pin-selectable
transmitter slew rates for both RS-232 and RS-485/422
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-485/422
mode and up to 1Mbps in RS-232 mode. The
MAX3160/MAX3161/MAX3162 feature a 1µA shutdown
mode, and short-circuit limiting and thermal shutdown
circuitry to protect against excessive power dissipation.
The MAX3160/MAX3162 offer a flow-through pinout that
facilitates board layout. The MAX3160/MAX3161/
MAX3162 are available in tiny SSOP packages and
operate over the commercial and extended tempera-
ture ranges.
19-1722; Rev 2; 12/09
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
________________________Applications
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX3160CAP+
MAX3160EAP+
MAX3161CAG+
MAX3161EAG+
MAX3162CAI+
MAX3162EAI+
Point-of-Sales Equipment
Industrial Controls
RS-232 to RS-485
Interface Converters
PART
________________________________________________________________ Maxim Integrated Products
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
+3.0V to+5.5V, 1µA, RS-232/RS-485/422
Ordering Information
General Description
Peripherals
Networking
PIN-PACKAGE
20 SSOP
20 SSOP
24 SSOP
24 SSOP
28 SSOP
28 SSOP
Multiprotocol Transceivers
♦ Single-Supply Operation from +3V to +5.5V
♦ Pin-Programmable as 2TX/2RX RS-232 or Single
♦ 2TX/2RX RS-232 and Single RS-485/422
♦ Pin-Programmable RS-232/RS-485 Transmitter
♦ 10Mbps RS-485 and 1Mbps RS-232 Data Rates
♦ Pin-Programmable Half-Duplex or Full-Duplex
♦ RS-485/422 True Fail-Safe Receivers
♦ Transmitters and Receivers Protected Against
♦ 1µA Shutdown Supply Current
♦ 1/8-Unit Load Allows up to 256 Transceivers on
RS-485/422 (MAX3160/MAX3161)
(MAX3162)
Slew Rates Reduce EMI
RS-485/422 Operation (MAX3160/MAX3161)
Wiring Faults
the Bus
MAX3100
μP
SPI
11
12
13
10
SHDN
CTS
RX
TX
RTS
RO/R2OUT
DE/T2IN
DI/T1IN
R1OUT
16
15
Typical Operating Circuit
7
8
GND FAST HDPLX SHDN
4
+3V TO +5.5V
MAX3160
10
V
CC
RS485/RS232
1
12
9
11
13
14
5
Y(A)/T2OUT
A/R2IN
B/R1IN
Z(B)/T1OUT
6
Features
RJ45
DB9
1

Related parts for MAX3160CAP+T

MAX3160CAP+T Summary of contents

Page 1

... Denotes a lead(Pb)-free/RoHS-compliant package. Pin Configurations appear at end of data sheet. Selector Guide appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Multiprotocol Transceivers ♦ ...

Page 2

RS-232/RS-485/422 Multiprotocol Transceivers ABSOLUTE MAXIMUM RATINGS V to GND. .............................................................-0. GND ................................................................-0. GND....................................................................0. (Note 1)....................................................................+13V Input Voltages T1IN, T2IN, DI, DE485, RE485, TE232, ...

Page 3

RS-232/RS-485/422 ELECTRICAL CHARACTERISTICS (continued +3V to +5.5V, C1–C4 = 0.1µF when tested at +3.3V ±10 0.047µF and C2, C3 0.33µF when tested at +5V CC ±10 ...

Page 4

RS-232/RS-485/422 Multiprotocol Transceivers ELECTRICAL CHARACTERISTICS (continued +3V to +5.5V, C1–C4 = 0.1µF when tested at +3.3V ±10 0.047µF and C2, C3 0.33µF when tested at +5V CC ±10 ...

Page 5

RS-232/RS-485/422 ELECTRICAL CHARACTERISTICS (continued +3V to +5.5V, C1–C4 = 0.1µF when tested at +3.3V ±10 0.047µF and C2, C3 0.33µF when tested at +5V CC ±10 ...

Page 6

RS-232/RS-485/422 Multiprotocol Transceivers (V = +3.3V, 250kbps data rate, 0.1µF capacitors, all RS-232 transmitters (RS-232 mode) loaded with 3kΩ to ground unless otherwise noted.) RS-232 TRANSMITTER SLEW RATE vs. LOAD CAPACITANCE (FAST = V ) ...

Page 7

RS-232/RS-485/422 (V = +3.3V, 250kbps data rate, 0.1µF capacitors, all RS-232 transmitters (RS-232 mode) loaded with 3kΩ to ground unless otherwise noted.) OUTPUT CURRENT vs. RECEIVER OUTPUT HIGH VOLTAGE ...

Page 8

RS-232/RS-485/422 Multiprotocol Transceivers PIN MAX3160 MAX3161 — — — — — — — — — — — ...

Page 9

RS-232/RS-485/422 PIN MAX3160 MAX3161 MAX3162 13 — 14 — — — — — — — — — — — — — ...

Page 10

RS-232/RS-485/422 Multiprotocol Transceivers RS-232 MODE CHARGE PUMP C1 BYPASS GND RS-232 OUTPUTS LOGIC OUTPUTS SHDN 10 FAST ...

Page 11

RS-232/RS-485/422 RS-232 MODE CHARGE PUMP C1 BYPASS GND 4 T1 RS-232 5 OUTPUT RS-232 8 OUTPUT R1 9 LOGIC OUTPUTS ...

Page 12

RS-232/RS-485/422 Multiprotocol Transceivers Functional Diagrams (continued) MAX3162 CHARGE PUMP C1 BYPASS GND 4 RS-232 5 OUTPUT Z 6 RS-485 D OUTPUTS Y 7 RS-232 8 OUTPUT R1 ...

Page 13

RS-232/RS-485/422 500Ω OUTPUT UNDER TEST C L Figure 4. RS-485/422 Driver Enable/Disable Timing Test Load 3V DE485 1. DZL Y, Z 2.3V OUTPUT NORMALLY LOW V OL OUTPUT NORMALLY HIGH ...

Page 14

RS-232/RS-485/422 Multiprotocol Transceivers Detailed Description The MAX3160/MAX3161/MAX3162 3V/5V, multiprotocol transceivers can be pin configured in a number of RS- 232 and RS-485/422 interface combinations. These cir- cuit configurations are ideal for the design of RS-232 to RS-485 ...

Page 15

RS-232/RS-485/422 charge pumps are enabled; if the magnitude of both output voltages exceeds 5.5V, the charge pumps are disabled. Each charge pump requires a flying capaci- tor (C1, C2) and a reservoir capacitor (C3, C4) to gen- ...

Page 16

RS-232/RS-485/422 Multiprotocol Transceivers RS-232 Transmitters Table 1. MAX3160 INPUTS RS485 DI/T1IN, SHDN DE485/T2IN ...

Page 17

RS-232/RS-485/422 Table 7. MAX3160 INPUTS SHDN RS485 Table ...

Page 18

RS-232/RS-485/422 Multiprotocol Transceivers Table 11. MAX3161 RS485 Table 12. MAX3162 INPUTS -50mV ...

Page 19

RS-232/RS-485/422 MAX 3160-2 FIG10 40μs/div Figure 10. MAX3160 RS-232 Transmitter Outputs When Exiting Shutdown BYPASS V CC C1+ C1 C1- C2+ MAX3160 MAX3161 C2 C2- MAX3162 T_ OUT OUT 5k V ...

Page 20

RS-232/RS-485/422 Multiprotocol Transceivers A 120Ω RE485 DE485 120Ω NOTE: RE485 ON MAX3162 ONLY Figure 14. RS-485 Line Repeater transfers data through the MAX3160 to the pin-selected RS-232 or RS-485 protocol; ...

Page 21

RS-232/RS-485/422 Table 14. Cable Connections Commonly Used for EIA/TIA-232 and V.24 Asynchronous Interfaces EIA/TIA-232 CONNECTOR STANDARD PIN DCD DTR DSR 6 RTS 7 CTS MAX3100 UART ...

Page 22

RS-232/RS-485/422 Multiprotocol Transceivers TOP VIEW + C1 C2 C2- GND MAX3160 Z(B)/T1OUT 5 16 DI/T1IN Y(A)/T2OUT 6 15 DE485/T2IN R1OUT 7 14 B/R1IN RO/R2OUT ...

Page 23

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 23 © 2009 Maxim Integrated Products ...

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