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Texas Instruments CABT541BIPWRG4Q1
- Part No.:
- CABT541BIPWRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CABT541BIPWRG4Q1.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,785
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Product details
Overview
CABT541BIPWRG4Q1 from Texas Instruments is an automotive-qualified octal buffer/driver with 3-state outputs, designed for bus driving and memory address register buffering in vehicle control modules. It features dual active-low output-enable inputs (OE1/OE2), high-drive capability (−32 mA IOH / 64 mA IOL), and operates across −40°C to +85°C at 4.5–5.5 V supply.
For engineers reviewing the CABT541BIPWRG4Q1 datasheet, CABT541BIPWRG4Q1 pinout, CABT541BIPWRG4Q1 application, or CABT541BIPWRG4Q1 equivalent, key selection criteria include its EPIC-II™ BiCMOS process enabling low power dissipation, latch-up immunity >500 mA, and guaranteed high-impedance state during power-up/down below 2.1 V VCC.
Technical Context
The CABT541BIPWRG4Q1 implements a dual-input AND logic gate for 3-state control: either OE1 or OE2 high forces all eight Y outputs into high-impedance. Its BiCMOS architecture delivers TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2 V) while supporting 5-V operation with robust ESD protection (>2000 V HBM, >150 V MM).
It exhibits fast switching performance (tPLH/tPHL ≤ 3.6 ns at 5 V, CL = 50 pF) and tight output skew (tsk(o) ≤ 0.5 ns), with controlled ground bounce (VOLP < 1 V) and rail-to-rail output voltage compliance (VOH ≥ 2 V at IOH = −32 mA, VOL ≤ 0.55 V at IOL = 64 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V automotive logic rails and noise margin stability. |
| Output Drive | −32 mA IOH / 64 mA IOL - Supports direct connection to heavy-loaded buses without external buffers. |
| Propagation Delay | ≤ 3.6 ns (tPLH/tPHL) - Enables reliable timing in high-speed address/data path applications up to ~275 MHz. |
| Power-Up Safety | High-Z state guaranteed at VCC < 2.1 V - Prevents bus contention during system power sequencing. |
| ESD Rating | >2000 V HBM, >150 V MM - Meets automotive electronics robustness requirements per AEC-Q100 stress tests. |
| Latch-Up Immunity | >500 mA per JEDEC JESD-17 - Ensures survivability under transient overcurrent events in vehicle environments. |
| Operating Temperature | −40°C to +85°C - Qualified for under-hood and cabin-mounted ECUs per AEC-Q100 Grade 2. |
Pinout & Package
TSSOP-20 (PW) package: 6.5 mm × 4.4 mm × 1.2 mm body, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low 3-state enable inputs - Dual-input AND logic ensures outputs go high-Z if either is high. |
| 2–9 | A1–A8 | Noninverting data inputs - Positioned on left side to simplify PCB routing away from outputs. |
| 11–18 | Y1–Y8 | Noninverting buffered outputs - High-drive outputs placed opposite inputs for optimal trace separation. |
| 10 | GND | Ground reference - Dedicated pin minimizes ground bounce coupling to sensitive logic paths. |
| 20 | VCC | Positive supply - Single 5-V rail powers both input and output stages; no separate I/O supply required. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 2 qualified - Validated for use in engine control units, body controllers, and ADAS sensor interfaces. |
| EPIC-II™ BiCMOS Process | Reduces ICC by >40% vs. legacy bipolar buffers - Lowers thermal load in dense ECU PCB layouts. |
| Output Ground Bounce Control | VOLP < 1 V at 5 V/25°C - Minimizes signal integrity degradation during simultaneous output switching. |
| Input/Output Isolation | IOZPU/IOZPD ≤ ±50 μA at VCC = 0–2.1 V - Prevents back-driving or leakage during partial power conditions. |
| Bus-Friendly Layout | Inputs (left) and outputs (right) on opposite sides - Enables straight-through routing with minimal layer transitions. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Buffering crankshaft/camshaft position sensor address lines to microcontroller GPIOs in noisy engine bay environments. IC Role / Device Role / Timing Role: Noninverting octal buffer isolating sensor interface logic from MCU bus, providing drive strength and noise immunity. Use Value: Guaranteed high-Z during cold-crank VCC ramp-up prevents spurious writes to memory-mapped peripherals. |
Use Scenario: Driving multiplexed LED display segments and relay driver enable lines in centralized vehicle lighting control. IC Role / Device Role / Timing Role: 3-state bus driver enabling time-shared control of multiple output banks via common MCU port. Use Value: −32 mA/64 mA drive supports direct LED segment current sourcing/sinking without discrete transistors. |
| Advanced Driver Assistance Systems (ADAS) | Infotainment Head Unit |
|
Use Scenario: Level-shifting and buffering camera sensor configuration registers between 1.8-V image processor and 5-V power management IC. IC Role / Device Role / Timing Role: Voltage-tolerant buffer (VI = −0.5 to 7 V) interfacing mixed-voltage subsystems with precise timing control. Use Value: tPLH/tPHL ≤ 3.6 ns ensures sub-4 ns setup/hold margins for I²C/SPI register writes in real-time safety loops. |
Use Scenario: Isolating audio codec control lines from main SoC during power-state transitions to prevent pop/click artifacts. IC Role / Device Role / Timing Role: Glitch-free 3-state gate controlling clock/data enable to audio peripheral during sleep/wake cycles. Use Value: Dual OE inputs allow coordinated shutdown of multiple codec functions using single hardware reset signal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT541BIPWRQ1 | Identical silicon die and electrical specs; differs only in TI's internal part marking suffix (no G4). | No functional difference - same automotive qualification, TSSOP-20 package, and pinout. | Select when full TI brand traceability without G4 suffix is required for OEM documentation. |
| SN74LVC541APWR | Lower voltage (1.65–3.6 V), CMOS-based, 24 mA drive - lacks automotive qualification and 5-V tolerance. | Suitable only for non-automotive 3.3-V systems; cannot replace in AEC-Q100 designs. | Choose only for cost-sensitive consumer-grade 3.3-V applications where automotive reliability is not mandated. |
Compared with SN74ABT541BIPWRQ1, CABT541BIPWRG4Q1 offers identical functionality with enhanced TI internal traceability; versus SN74LVC541APWR, it provides mandatory 5-V operation, AEC-Q100 qualification, and higher drive strength essential for automotive bus loading.
Availability
CABT541BIPWRG4Q1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor interfaces, and infotainment head units requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for CABT541BIPWRG4Q1 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 automotive ICs, with decades of experience delivering high-reliability components for mission-critical systems.
The SN74ABT541B-Q1 product line delivers automotive-grade bus interface solutions optimized for noise immunity, power sequencing safety, and long-term supply stability in electronic control units.
FAQ
What is the operating temperature range for CABT541BIPWRG4Q1?
CABT541BIPWRG4Q1 is rated for −40°C to +85°C ambient operation and is AEC-Q100 Grade 2 qualified. This range covers under-hood and cabin-mounted automotive applications including engine control, transmission control, and HVAC modules. The device maintains specified VOH/VOL, propagation delay, and 3-state behavior across this full range, with validated performance at temperature extremes per TI's production test flow.
Does CABT541BIPWRG4Q1 support 3.3-V logic inputs?
No, CABT541BIPWRG4Q1 does not guarantee 3.3-V logic compatibility. Its input thresholds are TTL-compatible: VIH = 2.0 V min and VIL = 0.8 V max at VCC = 4.5–5.5 V. While 3.3-V signals may function in many cases, they fall outside the guaranteed switching window and risk marginal operation in high-noise automotive environments. For true 3.3-V systems, TI recommends SN74LVC541A or similar LVC-family devices.
How does the dual OE input logic work on CABT541BIPWRG4Q1?
CABT541BIPWRG4Q1 uses a two-input AND gate for 3-state control: both OE1 and OE2 must be low for outputs Y1–Y8 to drive. If either OE1 or OE2 is high, all outputs enter high-impedance. This allows flexible enable schemes - e.g., OE1 tied to system reset and OE2 to software-controlled GPIO - ensuring fail-safe bus isolation during fault conditions or firmware initialization sequences.
Is CABT541BIPWRG4Q1 pin-compatible with SN74ABT541BIPWRQ1?
Yes, CABT541BIPWRG4Q1 is pin-compatible with SN74ABT541BIPWRQ1. Both use identical TSSOP-20 (PW) packaging, share the same pinout (OE1/OE2, A1–A8, Y1–Y8, GND, VCC), and have identical footprint and solder mask requirements per TI's PW0020A package drawing. The G4 suffix denotes TI's internal quality screening level but does not affect mechanical or electrical interoperability.
What is the maximum capacitive load CABT541BIPWRG4Q1 can drive reliably?
CABT541BIPWRG4Q1 is characterized for CL = 50 pF in its switching specifications (e.g., tPLH ≤ 3.6 ns). While it can drive heavier loads due to its 64-mA IOL, propagation delay increases linearly with capacitance - exceeding 50 pF degrades timing margins. For loads >50 pF, TI recommends verifying setup/hold timing in the target application or adding series termination. The device's VOL remains ≤0.55 V up to 64 mA, supporting typical PCB trace + connector + receiver input capacitance within spec.
CABT541BIPWRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 80°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
CABT541BIPWRG4Q1 FAQ
1.How can I place an order for CABT541BIPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CABT541BIPWRG4Q1 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 CABT541BIPWRG4Q1 reliable?
The price and inventory of CABT541BIPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CABT541BIPWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CABT541BIPWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CABT541BIPWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CABT541BIPWRG4Q1?
CABT541BIPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CABT541BIPWRG4Q1 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 CABT541BIPWRG4Q1?
For technical support, including CABT541BIPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CABT541BIPWRG4Q1 requirements.
6.How does Aetrix verify that CABT541BIPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CABT541BIPWRG4Q1 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 CABT541BIPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CABT541BIPWRG4Q1?
All CABT541BIPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CABT541BIPWRG4Q1, 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 CABT541BIPWRG4Q1 part is unused and in its original packaging.
Return procedure for CABT541BIPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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