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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversTRS213IDW
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TRS213IDW - Texas Instruments

Manufacturer Part Number
TRS213IDW
Manufacturer
Texas Instruments
Allelco Part Number
98D-TRS213IDW
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,478 pcs available, New & Original
Parts Description
IC TRANSCEIVER FULL 4/5 28SOIC
Package
28-SOIC
Data sheet
-
RoHs Status
ROHS3 Compliant
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In stock: 5478

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Specifications

TRS213IDW Tech Specifications
Texas Instruments - TRS213IDW technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TRS213IDW

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply 4.5V ~ 5.5V
Type Transceiver
Supplier Device Package 28-SOIC
Series -
Receiver Hysteresis 500 mV
Protocol RS232
Package / Case 28-SOIC (0.295", 7.50mm Width)
Product Attribute Attribute Value
Package Tube
Operating Temperature -40°C ~ 85°C
Number of Drivers/Receivers 4/5
Mounting Type Surface Mount
Duplex Full
Data Rate 120Kbps
Base Product Number TRS213

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the TRS213IDW compare to the MAX213EWI+ in terms of supply voltage tolerance and noise margin under typical industrial operating conditions?
The TRS213IDW supports a supply voltage range of 4.5V to 5.5V, which aligns with standard RS232 transceiver designs using ±12V drivers powered from a single 5V rail via charge pumps. While the MAX213EWI+ offers similar functionality, it typically requires tighter regulation for optimal performance, making the TRS213IDW more forgiving in systems with moderate PSU ripple. Both devices exhibit receiver hysteresis around 500 mV, but the TRS213IDW’s internal design allows consistent noise immunity across its full specified temperature range (-40°C to 85°C), whereas the MAX213EWI+ may show slight threshold drift at extremes unless paired with robust filtering.
What are the key considerations when selecting between the TRS213IDW and alternative RS232 transceivers like the MAX211IDW for a high-reliability embedded system requiring full-duplex UART communication?
When comparing the TRS213IDW to the MAX211IDW, both support 4/5 driver/receiver channels and operate at up to 120 kbps, but differences emerge in power sequencing and fault protection. The TRS213IDW includes built-in charge pump circuitry that simplifies external component count, reducing board space and potential failure points—critical in compact or long-lifetime designs. Additionally, the TRS213IDW’s MSL rating of 1 indicates unlimited shelf life before reflow, unlike some older MAX variants with higher sensitivity. For industrial applications where transient immunity matters, the TRS213IDW’s compliance with EAR99 and RoHS3 status ensures regulatory consistency without supply chain risk.
Can the TRS213IDW reliably drive legacy RS232 peripherals such as modems or serial printers over 50 feet of unshielded twisted pair cable at full data rate?
Operating at 120 kbps, the TRS213IDW meets the RS232 specification for reliable communication over moderate distances, including up to 50 feet with proper termination. However, signal integrity degrades with cable capacitance and electromagnetic interference; thus, even within its rated data rate, layout parasitics can reduce effective reach. In practice, this distance is achievable only with low-capacitance cables (<30 pF/ft) and adherence to ground return path integrity. For longer runs or noisy environments, lowering the baud rate to 9600 bps improves margin significantly, though the TRS213IDW remains capable of sustained 120 kbps operation under controlled conditions.
What impact does ambient temperature have on the TRS213IDW’s input threshold stability, and how should designers compensate for this in automotive edge cases?
The TRS213IDW specifies receiver hysteresis of 500 mV across -40°C to 85°C, ensuring stable logic transitions despite supply voltage drift caused by temperature. This hysteresis provides inherent noise rejection, reducing susceptibility to EMI-induced false triggering. However, at the lower end (-40°C), semiconductor mobility decreases slightly, which can marginally increase propagation delay. Designers should avoid pushing timing margins to the limit in harsh environments; instead, allocate 10–15% extra delay budget for worst-case thermal scenarios. The device’s SOIC-28 package also exhibits minimal thermal gradient effects, supporting predictable behavior in thermally stressed applications.
How many external capacitors are required for the TRS213IDW to generate the necessary ±12V swing for full RS232 signaling?
The TRS213IDW integrates dual charge pumps that require four external capacitors to generate the required negative and positive rails for ±12V output levels. These typically include two ceramic capacitors (e.g., 0.1 µF each) for internal switching and two larger bulk capacitors (e.g., 1 µF X7R or X5R) for stable voltage delivery to drivers. Proper placement close to the V+ and V− pins minimizes loop inductance and ensures clean transient response. Using mismatched or low-Q capacitors may lead to droop under load or oscillation during mode transitions, degrading signal integrity at higher data rates.
Is the TRS213IDW suitable for use in battery-powered systems with intermittent activity and strict quiescent current requirements?
While the TRS213IDW operates efficiently in standard applications, it lacks a true shutdown mode with ultra-low quiescent current, unlike newer energy-efficient RS232 alternatives. Its typical supply current ranges from tens of microamps in active mode to hundreds during transmission bursts. Therefore, in ultra-low-power designs, duty-cycling the device or using an enable pin to disable unused sections may help reduce average consumption. However, for always-on serial links or systems requiring continuous readiness, the TRS213IDW trades off efficiency for robustness and simplicity—making it better suited for mains-powered or moderate-battery-life platforms.
What precautions must be taken when substituting the TRS213IDW with part numbers like MAX213ECWI+ in existing PCB layouts?
Substituting the TRS213IDW with the MAX213ECWI+ generally preserves pin compatibility due to shared SOIC-28 footprint, but differences in internal biasing and enable logic require verification. Notably, the MAX213ECWI+ may lack the same level of input clamping protection at all pins, so ESD-sensitive nodes might need additional TVS diodes. Also, check that the replacement supports identical voltage thresholds and hysteresis; otherwise, firmware expecting specific logic levels may misinterpret idle states. Always validate timing diagrams and power-up sequences under worst-case conditions before committing to substitution in production builds.
How does the TRS213IDW handle simultaneous transmit and receive operations without data corruption or bus contention?
As a full-duplex transceiver, the TRS213IDW uses independent transmitter and receiver circuits with separate input and output paths, enabling concurrent bidirectional communication. Internal arbitration and isolation prevent feedback loops that could cause spurious wakeups or glitches. At 120 kbps, the propagation delays through the driver and receiver chains are tightly matched, minimizing skew between TX and RX timing windows. Designers should still ensure clean ground referencing and minimize crosstalk via routing separation, especially in multi-channel configurations, to maintain integrity during high-speed bursts.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TRS213IDW

Product Attribute TRS213IDWR TRS213CDWG4 TRS213CDWR TRS213IDB
Part Number TRS213IDWR TRS213CDWG4 TRS213CDWR TRS213IDB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Receiver Hysteresis - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Protocol - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Type - - - -
Number of Drivers/Receivers - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Duplex - - - -
Voltage - Supply - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Data Rate - - - -
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount

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TRS213IDW Image

TRS213IDW

Texas Instruments
98D-TRS213IDW

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