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Part Number: MAX3111E
Description: The MAX3110E/MAX3111E combine a full-featured universal asynchronous receiver/transmitter (UART) with ...
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MAX3111E
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General Description
MAX3111E General Description
The MAX3110E/MAX3111E combine a full-featured universal asynchronous receiver/transmitter (UART) with ±15kV ESD-protected RS-232 transceivers and integrated charge-pump capacitors into a single 28-pin package for use in space-, cost-, and power-con-strained applications. The MAX3110E/MAX3111E also feature an SPI™/QSPI™/MICROWIRE™-compatible serial interface to save additional board space and microcontroller(µC) I/O pins.
A proprietary low-dropout output stage enables the 2-driver/2-receiver interface to deliver true RS-232 per-formance down to VCC= +3V (+4.5V for MAX3110E) while consuming only 600µA. The receivers remain active in a hardware/software-invoked shutdown, allowing external devices to be monitored while consuming only 10µA. Each device is guaranteed to operate at up to 230kbps while maintaining true EIA/TIA-232 output voltage levels.
The MAX3110E/MAX3111E's UART includes a crystal oscillator and baud-rate generator with software-pro-grammable divider ratios for all common baud rates from 300baud to 230kbaud. The UART features an 8-word-deep receive FIFO that minimizes processor over-head and provides a flexible interrupt with four maskable sources. Two control lines (one input and one output) are included for hardware handshaking.
The UART and RS-232 functions can be used together or independently since the two functions share only supply and ground connections (the MAX3110E/MAX3111E are hardware- and software-compatible with the MAX3100 and MAX3222E).
MAX3111E Maximum Ratings
VCCto GND (MAX3110E)............................................-0.3V to +6V
VCCto GND (MAX3111E)............................................-0.3V to +4V
V+ to GND (Note 1)...................................................-0.3V to +7V
V- to GND (Note 1)....................................................+0.3V to -7V
V+ to V- (Note 1)..................................................................+13V
Input Voltages to GND
CS, X1, CTS, RX, DIN, SCLK......................-0.3V to (VCC + 0.3V)
T_IN, SHDN...........................................................-0.3V to +6V
R_IN................................................................................±25V
Output Voltage to GND
DOUT, RTS, TX, X2 ...................................-0.3V to (VCC + 0.3V)
IRQ.......................................................................-0.3V to +6V
T_OUT ...........................................................................±13.2V
R_OUT.......................................................-0.3V to (VCC+ 0.3V)
TX, RTSOutput Current......................................................100mA
Short-Circuit DurationX2, DOUT,
IRQ(to VCCor GND)...................................................Continuous
T_OUT (to GND) .......................................................Continuous
Continuous Power Dissipation (TA= +70°C)
28-pin Wide SO (derate 12.5mW/°C above +70°C) ...........1W
28-pin Plastic DIP (derate 14.3mW/°C above +70°C)....1.14W
Operating Temperature Ranges
MAX311_EC_ _ ...................................................0°C to +70°C
MAX311_EE_ _ ................................................-40°C to +85°C
Storage Temperature Range .........................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
VCCto GND (MAX3111E)............................................-0.3V to +4V
V+ to GND (Note 1)...................................................-0.3V to +7V
V- to GND (Note 1)....................................................+0.3V to -7V
V+ to V- (Note 1)..................................................................+13V
Input Voltages to GND
CS, X1, CTS, RX, DIN, SCLK......................-0.3V to (VCC + 0.3V)
T_IN, SHDN...........................................................-0.3V to +6V
R_IN................................................................................±25V
Output Voltage to GND
DOUT, RTS, TX, X2 ...................................-0.3V to (VCC + 0.3V)
IRQ.......................................................................-0.3V to +6V
T_OUT ...........................................................................±13.2V
R_OUT.......................................................-0.3V to (VCC+ 0.3V)
TX, RTSOutput Current......................................................100mA
Short-Circuit DurationX2, DOUT,
IRQ(to VCCor GND)...................................................Continuous
T_OUT (to GND) .......................................................Continuous
Continuous Power Dissipation (TA= +70°C)
28-pin Wide SO (derate 12.5mW/°C above +70°C) ...........1W
28-pin Plastic DIP (derate 14.3mW/°C above +70°C)....1.14W
Operating Temperature Ranges
MAX311_EC_ _ ...................................................0°C to +70°C
MAX311_EE_ _ ................................................-40°C to +85°C
Storage Temperature Range .........................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX3111E Features
Integrated RS-232 Transceiver and UART in aSingle 28-Pin Package
SPI/QSPI/MICROWIRE-Compatible µC Interface
Internal Charge-Pump Capacitors-No External Components Required!
True RS-232 Operation Down to VCC= +3V(MAX3111E)
ESD Protection for RS-232 I/O Pins
±15kV-Human Body Model
±8kV-IEC 1000-4-2, Contact Discharge
±15kV-IEC 1000-4-2, Air-Gap Discharge
Single-Supply Operation
+5V (MAX3110E)
+3.3V (MAX3111E)
Low Power
600µA Supply Current 10µA Shutdown Supply Current with
Receiver Interrupt Active
Guaranteed 230kbps Data Rate
Hardware/Software-Compatible with MAX3100 and MAX3222E
SPI/QSPI/MICROWIRE-Compatible µC Interface
Internal Charge-Pump Capacitors-No External Components Required!
True RS-232 Operation Down to VCC= +3V(MAX3111E)
ESD Protection for RS-232 I/O Pins
±15kV-Human Body Model
±8kV-IEC 1000-4-2, Contact Discharge
±15kV-IEC 1000-4-2, Air-Gap Discharge
Single-Supply Operation
+5V (MAX3110E)
+3.3V (MAX3111E)
Low Power
600µA Supply Current 10µA Shutdown Supply Current with
Receiver Interrupt Active
Guaranteed 230kbps Data Rate
Hardware/Software-Compatible with MAX3100 and MAX3222E
MAX3111E Typical Application
Point-of-Sale (POS) Devices
Handy-Terminals
Telecom/Networking Diagnostic Ports
Industrial Front-Panel Interfaces
Hand-Held/Battery-Powered Equipment
Handy-Terminals
Telecom/Networking Diagnostic Ports
Industrial Front-Panel Interfaces
Hand-Held/Battery-Powered Equipment
MAX3111E
PDF/DataSheet Download
- Datasheet: MAX3111E
- File Size: 423616 KB
- Manufacturer: Maixm
- Click here to Download
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