MAX3238ECAI+ by Analog Devices

+3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

Status: Active
Series: MAX3238E
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX3238E/MAX3248E transceivers use Maxim's revolutionary AutoShutdown Plus™ feature to achieve 10nA supply current. These devices shut down the on-board power supply and drivers when they do not sense a valid signal transition on either the receiver or transmitter inputs. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The devices turn on again when a valid transition is applied to any RS-232 receiver or transmitter input. AutoShutdown Plus automatically achieves this power savings through its on-board circuitry, as no changes are required to the existing BIOS or operating system. All RS-232 inputs and outputs, as well as the logic I/O pins, have enhanced ESD protection to ±15kV. The additional ESD protection on the logic I/O pins makes the MAX3238E/MAX3248E ideal for cell phone data cable applications because it eliminates the need for costly external TransZorb™ or protection schemes. The MAX3238E/MAX3248E contain five drivers and three receivers and are 3V-powered EIA/TIA-232 and V.28/V.24 communication interfaces intended for cell phones, data cables, and modem applications. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply. A guaranteed data rate of 250kbps provides compatibility with popular software for communicating with personal computers. The MAX3238E and the MAX3248E differ only in their input logic thresholds. The MAX3238E has standard logic thresholds, while the MAX3248E has low-level logic thresholds of 0.6V to 1.2V, which are ideal for 1.8V systems. The transmitter inputs, FORCEON, and active-low FORCEOFF have a 400 kilohms active positive feedback resistor. Once driven to a valid logic level, they will retain this level if the driving signal is removed or goes high impedance. Unused transmitter and logic inputs may be left unconnected. The MAX3238E/MAX3248E can operate with supply voltages ranging from +3.0V to +5.5V.

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Prices starting from US$4.60

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Features

Enhanced ESD Protection on RS-232 I/O Pins and All Logic Pins ±15kV—Human Body Model ±8kV—IEC 1000-4-2 Contact Discharge ±15kV—IEC 1000-4-2 Air-Gap Discharge
±15kV—Human Body Model
±8kV—IEC 1000-4-2 Contact Discharge
±15kV—IEC 1000-4-2 Air-Gap Discharge
Guaranteed Data Rate: 250kbps
10nA Low-Power Shutdown with Receivers Active
Schmitt Triggers on All Inputs
Flow-Through Pinout
Meets EIA/TIA-232 Specifications Down to 3.0V
Guaranteed 6V/µs Slew Rate
Low-Level Logic Thresholds (MAX3248E)
RS-232-Compatible Outputs to 2.7V

Specifications

# Rx 3
# Tx 5
VSUPPLY (V) 5
Data Rate (kbps) (min) 250
ICC (mA) (typ) 0.5
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 0.1
ESD Protect. (±kV) 15
Package/Pins SSOP/28
BudgetaryPrice (See Notes) 2.5

Last 6 months Inventory & Pricing History

MAX3238ECAI+ Semiconductors - ICs by Analog Devices

RS232 TXRX 250KBPS 5.5V SSOP-28

Semiconductors - ICs
> Drivers & Interfaces
> RS232, RS485, RS422 Transceivers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Type Transceiver
IC Interface Type RS232
No. of Drivers 5Drivers
No. of Receivers 3Receivers
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Driver Case Style SSOP
No. of Pins 28Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
IC Generic Number MAX3238
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

IC: interface | TME
Rs232 Txrx, 250Kbps, 5.5V, Ssop-28 | Newark Electronics
RS232 TXRX, 250KBPS, 5.5V, SSOP-28 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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