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Texas Instruments SN74LVCH16245AGRDR
- Part No.:
- SN74LVCH16245AGRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVCH16245AGRDR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,334
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Product details
Overview
SN74LVCH16245AGRDR from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between 1.65-V to 3.6-V buses. It supports mixed-mode signal operation (5.5-V-tolerant inputs at 3.3-V VCC), delivers 4-ns max propagation delay at 3.3 V, and features Ioff for live insertion and partial-power-down protection. It is used in tablet baseband interconnects requiring level translation and bus isolation.
For engineers reviewing the SN74LVCH16245AGRDR datasheet, SN74LVCH16245AGRDR pinout, SN74LVCH16245AGRDR application, or SN74LVCH16245AGRDR equivalent, key selection criteria include 3.3-V compatible bidirectional data flow, 5.5-V input tolerance, bus-hold circuitry eliminating external resistors, and TSSOP-48 packaging for high-density PCB layouts.
Technical Context
The SN74LVCH16245AGRDR implements two independent 8-bit transceiver sections, each controlled by dedicated DIR and OE pins. Direction control is synchronous with data flow: low DIR enables B→A transmission, high DIR enables A→B transmission, while high OE forces both ports into high-impedance isolation.
Its bus-hold circuitry actively maintains valid logic states on undriven A- and B-port inputs without external biasing, and the Ioff feature disables output leakage when VCC = 0 V-enabling safe hot-plug operation in backplane or modular systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables interoperability across 1.8-V, 2.5-V, and 3.3-V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct interfacing with legacy 5-V peripherals without level shifters |
| Max Propagation Delay | 4 ns at 3.3 V - Supports high-speed data transfer up to ~200 Mbps in point-to-point links |
| Ioff Current | ±10 µA at VCC = 0 V - Prevents back-drive current during power sequencing or hot-swap events |
| Bus-Hold Current | ±75 µA at 3 V - Maintains stable logic levels on floating data lines without pull-up/down resistors |
| Output Drive Strength | ±24 mA at 3 V - Drives standard CMOS loads with margin for trace capacitance and fanout |
| ESD Rating | 2000-V HBM - Meets industrial-grade robustness requirements per JESD22-A114 |
Pinout & Package
TSSOP-48 package (12.50 mm × 6.10 mm body size) with exposed pad option not specified; RoHS-compliant, NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Selects data flow direction per 8-bit section: DIR = L → B→A; DIR = H → A→B |
| 1OE, 2OE | Output enable input | Active-low control: OE = L enables transceiver; OE = H places both ports in high-Z |
| 1A1–1A8, 2A1–2A8 | A-port I/O | First and second 8-bit data interface; accepts 5.5-V inputs regardless of VCC |
| 1B1–1B8, 2B1–2B8 | B-port I/O | Complementary 8-bit data interface; bidirectional with bus-hold active on all pins |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed VCC pins reduce switching noise and improve PSRR in high-speed operation |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths for all I/O banks and power domains |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5.5-V-tolerant inputs at 1.65–3.6-V VCC enable seamless integration in heterogeneous voltage systems |
| Active bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on A/B ports, reducing BOM count and board space |
| Ioff partial-power-down support | Prevents current backflow when VCC = 0 V, enabling safe live insertion in modular backplanes |
| Low ground bounce (VOLP < 0.8 V) | Minimizes simultaneous switching noise in dense digital systems operating at 3.3 V |
| Latch-up immunity > 250 mA | Guarantees robust operation under transient overvoltage or ESD stress per JESD17 |
Applications
| Tablet Baseband Interconnect | Industrial PLC Backplane |
|---|---|
Use Scenario: Bidirectional data exchange between 3.3-V application processor and 5-V peripheral controller in a portable tablet. IC Role / Device Role / Timing Role: Level-translating bus transceiver managing address/data strobe handshaking with configurable direction control. Use Value: Eliminates discrete level shifters and pull resistors while maintaining <4 ns timing margin for 100-MHz parallel bus operation. |
Use Scenario: Isolating CPU module from I/O expansion slots during hot-swap maintenance in programmable logic controllers. IC Role / Device Role / Timing Role: Hot-plug-safe bus buffer with Ioff and bus-hold, enabling zero-downtime field upgrades. Use Value: Prevents back-drive damage during insertion/removal and holds last valid state on undriven control lines. |
| Wearable Health Sensor Hub | Test Equipment Digital I/O Module |
Use Scenario: Aggregating sensor data from multiple 1.8-V analog front-ends into a 3.3-V MCU subsystem in compact wearable devices. IC Role / Device Role / Timing Role: Low-voltage bidirectional data concentrator with ultra-low ICCZ (<5 µA) in disabled state. Use Value: Reduces standby power by >90% versus resistor-biased alternatives while preserving signal integrity. |
Use Scenario: Driving and sampling DUT signals in automated test equipment where 5-V TTL and 3.3-V LVTTL interfaces coexist. IC Role / Device Role / Timing Role: Reconfigurable 16-bit I/O expander supporting both input capture and output drive modes. Use Value: Single-component solution replaces dual-directional buffers and tristate drivers, cutting layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lacks bus-hold circuitry and Ioff; 5-V-tolerant inputs only at VCC ≥ 2.3 V | Requires external pull resistors; unsuitable for hot-swap or floating-bus scenarios | Lower-cost option where bus stability and live insertion are not required |
| SN74AVC16245DGGR | Supports 1.2-V to 3.6-V VCC; higher speed (2.5 ns tpd at 3.3 V); no 5.5-V input tolerance | Optimized for ultra-low-voltage SoC interconnects, not mixed-voltage translation | Preferred for sub-1.8-V systems where 5-V compatibility is unnecessary |
Compared with SN74LVC16245ADGGR, SN74LVCH16245AGRDR adds bus-hold and Ioff for robustness in dynamic systems; compared with SN74AVC16245DGGR, it trades speed for universal 5.5-V input tolerance-making SN74LVCH16245AGRDR the optimal choice for industrial and consumer mixed-voltage bus isolation.
Availability
SN74LVCH16245AGRDR is available at Aetrix Electronics and suitable for tablet baseband interconnects, industrial PLC backplanes, and wearable health sensor hubs requiring stable component supply across extended temperature ranges (–40°C to 125°C).
Supply support for SN74LVCH16245AGRDR 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 company specializing in analog and embedded processing technologies, with leadership in interface, logic, and power management ICs.
The SN74LVCH16245AGRDR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for reliable, low-noise bidirectional data transfer in mixed-voltage industrial and portable electronics.
FAQ
What is the maximum input voltage rating for SN74LVCH16245AGRDR?
The SN74LVCH16245AGRDR supports input voltages up to 5.5 V on all A- and B-port pins, regardless of VCC level (1.65 V to 3.6 V). This allows direct connection to 5-V logic without external level-shifting circuitry, making SN74LVCH16245AGRDR ideal for mixed-voltage system integration.
Does SN74LVCH16245AGRDR require external pull-up or pull-down resistors?
No. SN74LVCH16245AGRDR integrates active bus-hold circuitry on all A- and B-port inputs, which maintains valid logic states on undriven or floating lines. Using external resistors with SN74LVCH16245AGRDR is not recommended, as they conflict with the internal bus-hold function and may degrade noise margins.
Can SN74LVCH16245AGRDR be used in hot-swap applications?
Yes. SN74LVCH16245AGRDR includes Ioff circuitry that disables outputs and limits leakage to ±10 µA when VCC = 0 V, preventing damaging current backflow during live insertion or removal. This makes SN74LVCH16245AGRDR suitable for modular backplane and hot-plug I/O card designs.
What is the propagation delay of SN74LVCH16245AGRDR at 3.3 V?
The maximum propagation delay (tpd) of SN74LVCH16245AGRDR is 4 ns at VCC = 3.3 V and TA = 25°C, with typical values lower depending on load and transition conditions. This timing performance supports reliable operation in 100-MHz parallel bus systems when paired with appropriate PCB layout practices.
Which package type does SN74LVCH16245AGRDR use?
SN74LVCH16245AGRDR uses a TSSOP-48 package (DGG) with nominal dimensions of 12.50 mm × 6.10 mm. It features 48 leads, NIPDAU lead finish, RoHS compliance, and moisture sensitivity level (MSL) 1-qualified for unlimited floor life at ≤30°C/60% RH.
SN74LVCH16245AGRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVCH
- Package/Case:
- 54-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
SN74LVCH16245AGRDR FAQ
1.How can I place an order for SN74LVCH16245AGRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVCH16245AGRDR 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 SN74LVCH16245AGRDR reliable?
The price and inventory of SN74LVCH16245AGRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCH16245AGRDR is usually 5 days.
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Once your SN74LVCH16245AGRDR 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 SN74LVCH16245AGRDR?
For technical support, including SN74LVCH16245AGRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCH16245AGRDR requirements.
6.How does Aetrix verify that SN74LVCH16245AGRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVCH16245AGRDR 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 SN74LVCH16245AGRDR meets industry standards.
7.What is the process for return or replacement of SN74LVCH16245AGRDR?
All SN74LVCH16245AGRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCH16245AGRDR, 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 SN74LVCH16245AGRDR part is unused and in its original packaging.
Return procedure for SN74LVCH16245AGRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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