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Texas Instruments DS26C32AME/883
- Part No.:
- DS26C32AME/883
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 20-CLCC
- Datasheet:
-
DS26C32AME/883.pdf
- Description:
- IC TRANSCEIVER HALF 0/4 20LCCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,564
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Product details
Overview
DS26C32AME/883 from Texas Instruments is a quad differential line receiver IC designed for RS-422 and RS-423 balanced data transmission systems, featuring ±0.2 V input sensitivity over ±7 V common-mode range, TRI-STATE outputs with 6 mA drive capability, and fail-safe input circuitry. It operates across −55°C to +125°C and supports military-grade reliability per MIL-STD-883.
For engineers reviewing the DS26C32AME/883 datasheet, DS26C32AME/883 pinout, DS26C32AME/883 application, or DS26C32AME/883 equivalent, this device is selected for high-reliability serial communication in avionics, defense subsystems, and industrial control backplanes where ESD-hardened CMOS receivers with wide common-mode tolerance and enable-controlled output isolation are required.
Technical Context
The DS26C32AME/883 implements four independent RS-422-compliant differential receivers with internal pull-up/pull-down resistors to prevent floating outputs on unused channels. Each receiver features hysteresis and a 200 mV minimum differential threshold, ensuring robust noise immunity in electrically noisy environments.
It uses a single 4.5–5.5 V supply, supports full TRI-STATE control via a shared enable input, and maintains input high-impedance (≥4.5 kΩ) and zero-load behavior when VCC = 0 V - critical for hot-swap and power sequencing in modular systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V logic rails and tolerates rail droop during transient load conditions. |
| Differential Input Sensitivity | ±200 mV - guarantees reliable detection of valid RS-422 signals even under marginal signal integrity or long-cable attenuation. |
| Common-Mode Input Range | ±7 V - enables operation with ground potential differences up to 14 V between transmitter and receiver nodes. |
| Output Drive Capability | 6 mA sink/source - sufficient to directly drive TTL/CMOS loads without external buffering in point-to-point or lightly loaded bus topologies. |
| Propagation Delay | 35 ns max - supports data rates up to ~10 Mbps in typical configurations with minimal timing skew across channels. |
| Operating Temperature | −55°C to +125°C - qualified per MIL-STD-883 Group A testing, suitable for extended-range embedded and aerospace applications. |
| Input Resistance | 4.5 kΩ to 11 kΩ - provides predictable loading on differential pairs and simplifies termination design. |
Pinout & Package
LCCC (Leadless Ceramic Chip Carrier) package, 20-pin, hermetically sealed, compliant with package number NAJ0020A. Designed for high-reliability mounting in ceramic substrate assemblies and compatible with controlled-atmosphere reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7 | Inverting Input (A−, B−, C−, D−) | Differential negative inputs for each of four receiver channels; referenced to corresponding non-inverting inputs. |
| 2, 4, 6, 8 | Non-Inverting Input (A+, B+, C+, D+) | Differential positive inputs; combined with pins 1/3/5/7 define four independent RS-422 receiver inputs. |
| 9, 11, 13, 15 | Output (YA, YB, YC, YD) | TRI-STATE CMOS outputs; high-impedance when ENABLE is low; active-high logic polarity. |
| 10 | ENABLE (Active-High) | Global enable controlling all four outputs; asserts outputs when ≥2.0 V, disables to high-Z when ≤0.8 V. |
| 16–20 | VCC, GND, NC | Pins 16 & 20: VCC; Pins 17 & 19: GND; Pin 18: No Connect - decoupling and grounding layout must minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-Safe Input Circuitry | Guarantees logic-high output when inputs are open, shorted, or unterminated - prevents undefined states in fault conditions. |
| Zero-Load Inputs at VCC = 0 V | Allows safe insertion/removal in live backplanes without disturbing connected transmitters or loading differential lines. |
| CMOS Low-Power Design | Quiescent current ≤25 mA at VCC = 5.5 V - reduces thermal load and power supply demand in dense multi-channel interfaces. |
| RS-422/RS-423 Compliance | Fully meets EIA-422 electrical specifications including differential threshold, common-mode range, and output drive. |
| Pin Compatibility | Direct replacement for DS26LS32A and AM26LS32 in LCCC footprint - enables legacy system upgrades without PCB redesign. |
Applications
| Avionics Data Bus Interface | Tactical Radio Backplane Receiver |
|---|---|
|
Use Scenario: Receiving ARINC 429-compatible or custom differential command streams in flight control computers. IC Role / Device Role / Timing Role: Quad receiver translating isolated RS-422 signals into onboard logic-level data for FPGA or microcontroller ingestion. Use Value: ±7 V common-mode tolerance accommodates airframe ground shifts; fail-safe behavior ensures default-safe state during sensor disconnect. |
Use Scenario: Interfacing encrypted digital audio/data links between radio modules and baseband processors in manpack radios. IC Role / Device Role / Timing Role: Signal conditioning and level translation for bidirectional RS-422 links operating in high-EMI battlefield environments. Use Value: 35 ns propagation delay enables deterministic latency for real-time voice packet framing; TRI-STATE enables dynamic bus sharing. |
| Missile Guidance Telemetry Receiver | Subsea Sensor Hub Interface |
|
Use Scenario: Capturing telemetry downlink signals from inertial measurement units during launch and midcourse phases. IC Role / Device Role / Timing Role: High-reliability differential receiver front-end hardened against radiation-induced latch-up and thermal cycling. Use Value: −55°C to +125°C operation and MIL-STD-883 qualification ensure functionality across extreme ambient and self-heating conditions. |
Use Scenario: Aggregating RS-422 outputs from pressure, temperature, and sonar sensors in deep-ocean observatory nodes. IC Role / Device Role / Timing Role: Isolating and converting long-cable differential signals into clean logic levels for local ARM-based processing. Use Value: Input resistance >4.5 kΩ minimizes loading on high-impedance sensor transmitters; ±0.2 V sensitivity maintains SNR over km-length cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad differential receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS26C32AMJ/883 | CDIP-16 package (NFE0016A), same electrical specs, lower pin count, through-hole mounting. | Suitable for prototyping, manual assembly, or legacy board designs requiring DIP footprint. | Select when mechanical integration favors through-hole or when thermal mass requirements differ from LCCC. |
| AM26LS32ACD | Commercial-grade (−40°C to +85°C), SOIC-16, no MIL-STD-883 screening, identical pinout and logic behavior. | Applicable in non-military industrial automation where extended temperature and radiation tolerance are not required. | Choose for cost-sensitive volume production where military qualification is unnecessary and surface-mount assembly is preferred. |
Compared with DS26C32AME/883, DS26C32AMJ/883 offers identical performance in a through-hole package ideal for test fixtures and ruggedized chassis, while AM26LS32ACD provides drop-in functional equivalence for commercial systems - neither requires schematic changes, but only DS26C32AME/883 delivers full MIL-STD-883 Class B reliability assurance.
Availability
DS26C32AME/883 is available at Aetrix Electronics and suitable for avionics data buses, tactical radio backplanes, and missile telemetry systems requiring stable component supply, long-term obsolescence management, and traceable sourcing for defense programs.
Supply support for DS26C32AME/883 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company specializing in analog, embedded processing, and high-reliability interface solutions for aerospace, defense, and industrial markets.
The DS26C32AME/883 belongs to TI's military-grade interface IC product line, engineered specifically for robust differential communication in mission-critical platforms where signal integrity, temperature resilience, and long-term supply chain stability are mandatory.
FAQ
What is the maximum data rate supported by the DS26C32AME/883?
The DS26C32AME/883 supports data rates up to approximately 10 Mbps in typical configurations. This estimate derives from its 35 ns maximum propagation delay and 9 ns rise/fall times, which limit usable bandwidth in point-to-point RS-422 links. Actual achievable rate depends on cable length, termination, and noise margin - verified performance is documented in Figures 15–17 of the SNOSAS3A datasheet.
Does the DS26C32AME/883 require external biasing resistors on its differential inputs?
No, the DS26C32AME/883 does not require external biasing resistors. It integrates internal fail-safe pull-up and pull-down resistors on each differential input pair, ensuring defined logic-high outputs when inputs are open, shorted, or unterminated - a key feature confirmed in the "Features" and "Truth Table" sections of the DS26C32AME/883 datasheet.
Is the DS26C32AME/883 pin-compatible with the commercial DS26C32AM?
Yes, the DS26C32AME/883 is pin-compatible with the commercial DS26C32AM in the same LCCC-20 package (NAJ0020A). Both share identical pin assignments, electrical behavior, and logic functions. The DS26C32AME/883 adds MIL-STD-883 screening and extended temperature qualification but retains full mechanical and electrical interchangeability.
What is the meaning of "/883" in DS26C32AME/883?
The "/883" suffix in DS26C32AME/883 indicates compliance with MIL-STD-883, the U.S. Department of Defense standard for microcircuit testing and qualification. This includes rigorous environmental, electrical, and reliability testing across temperature extremes (−55°C to +125°C), mechanical shock/vibration, and long-term life screening - confirming suitability for defense and space applications.
Can the DS26C32AME/883 operate with a 3.3 V supply?
No, the DS26C32AME/883 is specified only for 4.5 V to 5.5 V operation per its Recommended Operating Conditions table. Operation below 4.5 V violates datasheet limits and risks undefined output behavior, reduced noise margin, and failure to meet RS-422 thresholds. For 3.3 V systems, consider TI's DS90LV047A or similar LVDS receivers.
DS26C32AME/883 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-CLCC
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Receiver
- Protocol:
- RS422, RS423
- Number of Drivers/Receivers:
- 0/4
- Duplex:
- Half
- Receiver Hysteresis:
- -
- Data Rate:
- 30Mbps
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-LCCC (8.89x8.89)
DS26C32AME/883 FAQ
1.How can I place an order for DS26C32AME/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS26C32AME/883 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS26C32AME/883 reliable?
The price and inventory of DS26C32AME/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS26C32AME/883 is usually 5 days.
3.What payment methods are accepted for DS26C32AME/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS26C32AME/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS26C32AME/883?
DS26C32AME/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS26C32AME/883 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS26C32AME/883?
For technical support, including DS26C32AME/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS26C32AME/883 requirements.
6.How does Aetrix verify that DS26C32AME/883 is sourced from the original manufacturer or authorized distributors?
All DS26C32AME/883 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS26C32AME/883 meets industry standards.
7.What is the process for return or replacement of DS26C32AME/883?
All DS26C32AME/883 units undergo pre-shipment inspection (PSI). If there is an issue with DS26C32AME/883, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS26C32AME/883 part is unused and in its original packaging.
Return procedure for DS26C32AME/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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