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Texas Instruments CABT16245AMDLREP
- Part No.:
- CABT16245AMDLREP
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CABT16245AMDLREP.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,015
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Product details
Overview
CABT16245AMDLREP from Texas Instruments is a radiation-hardened, high-reliability 16-bit noninverting bus transceiver with 3-state outputs, designed for synchronous bidirectional data transfer between A and B buses in aerospace and defense systems. It operates across –55°C to 125°C, supports 4.5–5.5 V supply, delivers ±32 mA high-drive outputs, and features power-up/down high-impedance protection.
For engineers reviewing the CABT16245AMDLREP datasheet, CABT16245AMDLREP pinout, CABT16245AMDLREP application, or CABT16245AMDLREP equivalent, key selection criteria include its EPIC-IIB™ BiCMOS process enabling low ground bounce (<1 V), flow-through pinout for optimized PCB layout, dual 8-bit or unified 16-bit configuration flexibility, and SSOP (DL) package compatibility with MIL-STD-883 Class B screening.
Technical Context
This device implements two independent 8-bit transceiver sections-each with dedicated DIR (direction control) and OE (output enable) inputs-allowing simultaneous or selective A↔B data routing. Its logic-level translation capability is limited to 5-V TTL-compatible signaling, with no voltage-level shifting between ports.
The transceiver uses distributed VCC/GND pinning to suppress high-speed switching noise, and its EPIC-IIB™ BiCMOS architecture achieves high drive strength while maintaining latch-up immunity (>500 mA per JESD70). Power sequencing is supported via intrinsic high-impedance behavior below 2.1 V on VCC, though external pull-up on OE is recommended above that threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation in regulated 5-V avionics and space-grade power domains |
| Operating Temperature | –55°C to 125°C - qualified for extended-range military and satellite environments |
| Output Drive | –32 mA IOH, +64 mA IOL - drives heavy capacitive loads and long traces without signal degradation |
| Propagation Delay | 0.5 ns to 4.6 ns (tPLH/tPHL) - enables sub-200 MHz bus timing in synchronous backplane applications |
| Input Hysteresis | 100 mV - improves noise margin against EMI in high-radiation or electrically noisy platforms |
| ESD Protection | 2000 V HBM, 200 V MM - exceeds MIL-STD-883 Method 3015 for handling robustness |
| Package | SSOP-48 (DL) - 0.635 mm pitch, 12.8 mm × 7.5 mm footprint compatible with legacy aerospace PCB layouts |
Pinout & Package
SSOP-48 (DL) package with shrink small-outline dimensions (12.8 mm × 7.5 mm, 0.635 mm pitch), thermal impedance θJA = 94°C/W, and moisture sensitivity level (MSL) 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: LOW = B→A, HIGH = A→B; enables independent bidirectional control |
| 1OE, 2OE | Output enable input (per 8-bit section) | Active-LOW; places associated 8-bit port outputs in high-impedance state when HIGH |
| 1A1–1A8, 2A1–2A8 | A-side data inputs/outputs | Noninverting transceiver port A; connected to local processor or controller bus |
| 1B1–1B8, 2B1–2B8 | B-side data inputs/outputs | Noninverting transceiver port B; interfaces to peripheral or memory bus |
| VCC (Pins 7, 18, 28, 39, 48) | Power supply | Distributed VCC pins minimize IR drop and reduce simultaneous switching noise |
| GND (Pins 4, 10, 15, 21, 31, 42) | Ground reference | Multiple GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input and output pins placed on opposite sides of package to eliminate layer jumps and reduce trace crosstalk in dense PCBs |
| High-impedance during power sequencing | Automatically enters Hi-Z state when VCC < 2.1 V - prevents bus contention during cold-start or brownout conditions |
| Distributed VCC/GND pinning | Five VCC and six GND pins interleaved across package - lowers power delivery impedance and suppresses ground bounce |
| EPIC-IIB™ BiCMOS process | Combines bipolar speed and CMOS density to achieve 32-mA drive at <1 V output ground bounce (VOLP) |
| Latch-up immunity | Exceeds 500 mA per JESD70 - ensures survivability under single-event latch-up (SEL) conditions in space radiation environments |
Applications
| Avionics Data Bus Interface | Satellite Onboard Computer Link |
|---|---|
Use Scenario: Isolating and translating data between flight computer and sensor acquisition module in a DO-254-compliant avionics subsystem. IC Role / Device Role / Timing Role: Bidirectional 16-bit bus transceiver synchronizing ARINC 429-compatible parallel data transfers with precise timing control. Use Value: Flow-through pinout simplifies routing across rigid-flex interconnects; high-impedance power-up behavior prevents spurious writes during system boot. | Use Scenario: Enabling configurable data exchange between payload processor and telemetry encoder in LEO satellite payloads. IC Role / Device Role / Timing Role: Radiation-tolerant bus buffer managing burst-mode command/data handshaking over extended temperature cycles. Use Value: MSL-1 reflow rating and –55°C to 125°C qualification support vacuum-compatible assembly and orbital thermal cycling. |
| Defense Radar Signal Processing Backplane | Secure Military Communication Module |
Use Scenario: Interfacing FPGA-based digital beamformer with ADC/DAC banks in ground-based radar systems requiring EMI resilience. IC Role / Device Role / Timing Role: High-drive 16-bit transceiver buffering time-critical I/Q sample streams with sub-5 ns propagation delay. Use Value: ±64 mA IOL drives 50-Ω terminated lines directly; 100 mV input hysteresis rejects RF coupling in RF-dense enclosures. | Use Scenario: Securing data path between crypto processor and secure memory in Type 1 encryption hardware. IC Role / Device Role / Timing Role: Tamper-resilient bus isolator enforcing physical layer separation between security domains. Use Value: Controlled baseline manufacturing and qualification pedigree ensure supply chain integrity and long-term obsolescence management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16245A | Commercial-grade version; rated only for –40°C to 85°C; lacks radiation hardening and extended temp screening | Not suitable for space or high-reliability defense deployments; acceptable for ground-test benches or non-flight prototypes | Select only if full MIL-PRF-38535 Class B or ESCC 22900 qualification is not required |
| SN54ABT16245A | Military QML-38535 certified; identical electrical specs but different screening flow and documentation traceability | Approved for flight-critical subsystems under DoD contracts; requires formal DSCC source approval and lot trace reporting | Choose when contractual compliance mandates QML-V or QML-Q certification beyond EP-level reliability |
Compared with SN74ABT16245A (commercial) and SN54ABT16245A (QML), CABT16245AMDLREP provides EP-level enhanced product change notification, controlled baseline sourcing, and ESCC-aligned qualification-making it optimal for programs requiring assured supply continuity and radiation-aware design margins without full QML overhead.
Availability
CABT16245AMDLREP is available at Aetrix Electronics and suitable for avionics data bus interface, satellite onboard computer link, and defense radar signal processing backplane applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for CABT16245AMDLREP 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 global semiconductor leader specializing in analog, embedded processing, and high-reliability ICs for industrial, automotive, aerospace, and defense markets.
The CABT16245AMDLREP belongs to TI's Widebus™ family of high-speed bus interface devices, engineered specifically for deterministic, low-noise data transfer in mission-critical electronic systems operating under extreme environmental stress.
FAQ
What is the operating temperature range specified for CABT16245AMDLREP?
The CABT16245AMDLREP is characterized for continuous operation from –55°C to 125°C. This extended range is achieved through rigorous ESCC 22900-aligned qualification including biased 85/85 testing, temperature cycling, and HAST. The device maintains full functionality-including 3-state control, propagation delay, and drive strength-across this entire range, making it suitable for stratospheric, orbital, and armored vehicle environments where thermal extremes are routine. CABT16245AMDLREP meets the same thermal performance envelope as its SN54ABT16245A counterpart but with enhanced supply chain controls.
Does CABT16245AMDLREP support voltage-level translation between different logic families?
No, CABT16245AMDLREP does not support voltage-level translation. It is a 5-V-only TTL-compatible transceiver with VIH = 2 V and VIL = 0.8 V thresholds, and all I/O ports operate strictly at the VCC supply level (4.5–5.5 V). Neither A nor B ports tolerate input voltages outside the 0–VCC range, and no internal level-shifting circuitry is present. CABT16245AMDLREP must be used in homogeneous 5-V systems; interfacing with 3.3-V or 2.5-V logic requires external translators. This limitation is explicitly confirmed in the "Recommended Operating Conditions" table of the official SCBS807B datasheet.
How many independent transceiver sections does CABT16245AMDLREP contain?
CABT16245AMDLREP contains two independent 8-bit transceiver sections, each with dedicated DIR and OE control inputs. Section 1 manages signals 1A1–1A8 ↔ 1B1–1B8 with controls 1DIR and 1OE; Section 2 manages 2A1–2A8 ↔ 2B1–2B8 with 2DIR and 2OE. This architecture allows asymmetric operation-for example, A→B data flow on Section 1 while B→A occurs on Section 2-or unified 16-bit operation when both DIR and OE inputs are tied together. The functional partitioning is verified in the "Function Table" and "Logic Diagram" of the CABT16245AMDLREP datasheet.
What is the maximum output current capability of CABT16245AMDLREP per pin?
CABT16245AMDLREP delivers –32 mA (IOH) into a load when sourcing current and +64 mA (IOL) when sinking current, per output pin. These values are guaranteed over the full –55°C to 125°C temperature range and 4.5–5.5 V supply. The high-sink capability enables direct driving of 50-Ω transmission lines or multiple TTL inputs without external buffers. The datasheet specifies these limits under "Electrical Characteristics" with test conditions confirming operation at VCC = 4.5 V and TA = 25°C (typical) and across full temperature extremes (min/max). CABT16245AMDLREP's IOH/IOL ratings exceed standard ABT-family parts due to its EPIC-IIB™ BiCMOS process optimization.
Is CABT16245AMDLREP pin-compatible with commercial SN74ABT16245A variants?
Yes, CABT16245AMDLREP is pin-compatible with SN74ABT16245A and SN54ABT16245A in the same SSOP-48 (DL) package. All three share identical pin numbering, function mapping, and mechanical footprint per TI's DL package drawing and "Orderable Part Number" table in SCBS807B. However, CABT16245AMDLREP differs in screening, qualification, and marking-featuring ABT16245AMEP top-side marking and ESCC-aligned test flow. PCB layout and schematic symbols can be reused across these variants, though system-level validation must account for differences in temperature range, radiation tolerance, and supply sequencing behavior.
CABT16245AMDLREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 48mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
CABT16245AMDLREP FAQ
1.How can I place an order for CABT16245AMDLREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CABT16245AMDLREP 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 CABT16245AMDLREP reliable?
The price and inventory of CABT16245AMDLREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CABT16245AMDLREP is usually 5 days.
3.What payment methods are accepted for CABT16245AMDLREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CABT16245AMDLREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CABT16245AMDLREP?
CABT16245AMDLREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CABT16245AMDLREP 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 CABT16245AMDLREP?
For technical support, including CABT16245AMDLREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CABT16245AMDLREP requirements.
6.How does Aetrix verify that CABT16245AMDLREP is sourced from the original manufacturer or authorized distributors?
All CABT16245AMDLREP 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 CABT16245AMDLREP meets industry standards.
7.What is the process for return or replacement of CABT16245AMDLREP?
All CABT16245AMDLREP units undergo pre-shipment inspection (PSI). If there is an issue with CABT16245AMDLREP, 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 CABT16245AMDLREP part is unused and in its original packaging.
Return procedure for CABT16245AMDLREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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