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Texas Instruments 74AVCB164245GRDR
- Part No.:
- 74AVCB164245GRDR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVCB164245GRDR.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,597
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Product details
Overview
74AVCB164245GRDR from Texas Instruments is a 16-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, designed for bidirectional level-shifting between 1.4-V to 3.6-V domains (e.g., 1.8-V ↔ 3.3-V buses). It features Ioff partial-power-down protection, DOC™ dynamic output impedance control, and ±24-mA drive capability. Used in FPGA-to-ASIC interconnects requiring mixed-voltage isolation.
For engineers reviewing the 74AVCB164245GRDR datasheet, 74AVCB164245GRDR pinout, 74AVCB164245GRDR application, or 74AVCB164245GRDR equivalent, key selection criteria include dual-rail VCCA/VCCB independence, direction-control timing (tpd ≤ 6.8 ns), Ioff current (< ±10 µA), and GRD-package ball mapping for BGA layout verification.
Technical Context
This device implements two independent 8-bit transceiver sections (1A↔1B and 2A↔2B), each with dedicated DIR and OE controls referenced to VCCB. The DOC™ circuitry dynamically modulates output impedance during transitions to reduce switching noise while maintaining full-speed operation across supply combinations.
Voltage translation is achieved via rail-referenced input thresholds: VIH/VIL for data pins track VCCI, while control inputs (DIR/OE) reference VCCB. If either VCCA or VCCB = GND, both ports enter high-impedance state-enabling safe hot-swap and power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 1.4 V to 3.6 V - supports 1.5/1.8/2.5/3.3-V logic on A-side without level shifters |
| VCCB Range | 1.4 V to 3.6 V - independently configurable for B-side voltage domain |
| Max tpd | 6.8 ns (A→B, VCCA=1.5 V, VCCB=1.5 V) - ensures timing closure in high-speed parallel interfaces |
| Ioff | < ±10 µA at 0 V - prevents backflow current during partial power-down |
| IOH/IOL | ±24 mA (at 2.5 V) - drives standard CMOS loads without external buffers |
| ESD Rating | 2000-V HBM - meets industrial I/O robustness requirements |
| DOC™ Enabled | Yes - reduces simultaneous switching noise by dynamically adjusting output impedance |
Pinout & Package
74AVCB164245GRDR uses a 54-ball MicroStar Junior BGA (GRD package) with 0.65-mm pitch, 7.1 mm × 6.9 mm body, and 1-mm max height. Ball assignments follow JEDEC MO-194 mechanical standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (1B1) | B-port data I/O | First bit of lower 8-bit B-bus; tolerant to VCCB + 0.5 V |
| A3 (1DIR) | Direction control input | Active-high; referenced to VCCB; determines A→B (DIR=L) or B→A (DIR=H) |
| A4 (1OE) | Output enable input | Active-low; referenced to VCCB; places 1A/1B ports in high-Z when high |
| C3/C4 (VCCB/VCCA) | Power supplies | VCCB powers B-port and control logic; VCCA powers A-port only |
| D4/D5 (GND) | Ground terminals | Two dedicated ground balls per section minimize ground bounce |
| K1 (2DIR) | Second direction control | Independent control for upper 8-bit section (2A↔2B) |
| K6 (2OE) | Second output enable | Independent OE for upper 8-bit section |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail voltage translation | Each port operates independently from 1.4 V to 3.6 V - eliminates need for discrete level shifters in mixed-voltage SoC/FPGA interconnects |
| Ioff partial-power-down | Prevents damaging current flow when VCCA or VCCB is unpowered - enables safe hot-plug and staggered power sequencing |
| DOC™ dynamic output control | Reduces simultaneous switching noise by lowering output impedance during edge transition, then raising it - improves signal integrity without speed penalty |
| Overvoltage-tolerant I/O | Withstands up to VCCX + 0.5 V on active outputs and 4.6 V on powered-down pins - protects against bus contention and ESD overshoot |
| VCCB-referenced controls | DIR/OE thresholds track VCCB - ensures reliable control logic operation even when VCCA differs significantly |
Applications
| Industrial PLC Backplane Interface | FPGA-to-Memory Subsystem Bridge |
|---|---|
Use Scenario: Isolating 3.3-V CPU bus from 1.8-V FPGA configuration interface in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage translator enabling synchronous data exchange between mismatched voltage domains with sub-7-ns propagation delay. Use Value: Eliminates discrete level-shifter ICs and associated board space; Ioff prevents backfeed during FPGA reconfiguration cycles. |
Use Scenario: Connecting Xilinx Artix-7 FPGA (1.8-V I/O) to DDR3 memory controller (2.5-V address/command bus) in embedded vision systems. IC Role / Device Role / Timing Role: Dual-rail transceiver providing deterministic timing for address strobes and command signals across voltage boundaries. Use Value: DOC™ circuitry suppresses SSN-induced jitter on critical timing paths; 54-ball GRD package enables dense routing in space-constrained modules. |
| Automotive ADAS Sensor Hub | Server Baseboard Management |
Use Scenario: Interfacing 1.2-V automotive camera sensor outputs to 3.3-V CAN/FlexRay gateway MCU in advanced driver-assistance systems. IC Role / Device Role / Timing Role: Level-shifting transceiver with automotive-grade thermal performance (θJA = 36°C/W) and latch-up immunity >100 mA. Use Value: Overvoltage tolerance protects against load-dump transients; GRD package's 1-mm height fits under low-profile heat sinks. |
Use Scenario: Isolating BMC (Baseboard Management Controller) I²C bus (3.3-V) from server CPU VRM telemetry lines (1.5-V) in datacenter motherboards. IC Role / Device Role / Timing Role: Low-leakage 3-state buffer enabling dynamic bus segmentation during firmware updates. Use Value: Ioff < ±10 µA prevents current leakage into unpowered VRM rails; VCCB-referenced OE allows BMC to control isolation independently. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVCB164245VR | TVSOP-48 package (7.1 mm × 4.4 mm); same electrical specs; RoHS-compliant CU NIPDAU finish | Surface-mount compatible with wave-solder processes; higher θJA (58°C/W) limits high-power density use | Select for prototyping or low-volume production where BGA rework is impractical |
| 74AVCB164245ZQLR | 56-ball ZQL BGA (0.65-mm pitch, 7.1 mm × 6.9 mm); Pb-free SNAGCU finish; identical logic and timing | Enhanced thermal performance (θJA = 28°C/W); requires updated land pattern per ZQL0056A spec | Select for new designs requiring extended temperature margin or RoHS exemption compliance |
Compared with 74AVCB164245GRDR, SN74AVCB164245VR offers easier assembly but reduced thermal headroom, while 74AVCB164245ZQLR delivers superior thermal dissipation and lead-free compliance at the cost of revised PCB layout.
Availability
74AVCB164245GRDR is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-to-memory bridges, automotive ADAS sensor hubs, and server baseboard management requiring stable component supply and long-term BOM continuity.
Supply support for 74AVCB164245GRDR 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 logic solutions, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74AVCB164245 family belongs to TI's Widebus™ portfolio, engineered specifically for high-speed, low-noise bidirectional voltage translation in multi-rail digital systems where power sequencing and signal integrity are critical.
FAQ
What is the maximum operating temperature range for the 74AVCB164245GRDR?
The 74AVCB164245GRDR is rated for operation from –40°C to +85°C ambient temperature, validated across its full recommended supply range (VCCA and VCCB = 1.4 V to 3.6 V). This range aligns with industrial-grade requirements and is confirmed in TI's SCES394D datasheet Section 4 (Recommended Operating Conditions).
Does the 74AVCB164245GRDR support true bidirectional data flow on each 8-bit port?
Yes, the 74AVCB164245GRDR supports true bidirectional operation per 8-bit section: DIR = L enables data flow from B-port to A-port; DIR = H enables A-port to B-port. Each section (1A/1B and 2A/2B) has independent DIR and OE controls, allowing asymmetric directionality across the 16-bit bus.
How does the Ioff feature protect the 74AVCB164245GRDR during partial power-down?
The Ioff circuitry disables all outputs when either VCCA or VCCB is at GND, limiting leakage current to < ±10 µA. This prevents damaging back-current flow through the device during power sequencing or fault conditions, as verified in Electrical Characteristics Table (Section 5, Ioff parameter).
Can the 74AVCB164245GRDR translate between 1.2-V and 3.3-V logic levels?
No - the 74AVCB164245GRDR minimum supply voltage is 1.4 V per rail. While it supports 1.5-V, 1.8-V, 2.5-V, and 3.3-V domains, operation below 1.4 V on either VCCA or VCCB violates Recommended Operating Conditions and may result in undefined logic behavior or excessive leakage.
What is the ball pitch and footprint compatibility of the 74AVCB164245GRDR package?
The 74AVCB164245GRDR uses a 54-ball MicroStar Junior BGA (GRD) with 0.65-mm pitch, 7.1 mm × 6.9 mm body, and JEDEC MO-194 compliance. Its land pattern matches ZQL/ZRD variants dimensionally but differs in ball count and placement - GRD-specific layout files are required per TI's ZRD0054A mechanical drawing.
74AVCB164245GRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVCB
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 2
- Channels per Circuit:
- 8
- Voltage - VCCA:
- 1.4 V ~ 3.6 V
- Voltage - VCCB:
- 1.4 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-TFBGA
74AVCB164245GRDR FAQ
1.How can I place an order for 74AVCB164245GRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVCB164245GRDR 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 74AVCB164245GRDR reliable?
The price and inventory of 74AVCB164245GRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVCB164245GRDR is usually 5 days.
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74AVCB164245GRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVCB164245GRDR 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 74AVCB164245GRDR?
For technical support, including 74AVCB164245GRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVCB164245GRDR requirements.
6.How does Aetrix verify that 74AVCB164245GRDR is sourced from the original manufacturer or authorized distributors?
All 74AVCB164245GRDR 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 74AVCB164245GRDR meets industry standards.
7.What is the process for return or replacement of 74AVCB164245GRDR?
All 74AVCB164245GRDR units undergo pre-shipment inspection (PSI). If there is an issue with 74AVCB164245GRDR, 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 74AVCB164245GRDR part is unused and in its original packaging.
Return procedure for 74AVCB164245GRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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