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Texas Instruments 74FCT162543TPVCG4
- Part No.:
- 74FCT162543TPVCG4
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74FCT162543TPVCG4.pdf
- Description:
- IC TRANSCVR 16BIT INV 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
74FCT162543TPVCG4 from Texas Instruments is a 16-bit balanced-output latched transceiver in 56-pin SSOP package, operating at 5V ±10% with industrial temperature range (−40°C to +85°C). It features 24 mA balanced output drivers, typical ground bounce <0.6 V, and edge-rate control for reduced switching noise-designed for high-speed bidirectional data flow on transmission lines and backplanes.
For engineers reviewing the 74FCT162543TPVCG4 datasheet, 74FCT162543TPVCG4 pinout, 74FCT162543TPVCG4 application, or 74FCT162543TPVCG4 equivalent, key selection criteria include latch-enable timing (tW = 4.0 ns), output skew (<0.5 ns), Ioff partial-power-down support, and compatibility with 5V TTL/CMOS logic systems requiring robust bus isolation and low-noise drive capability.
Technical Context
The 74FCT162543TPVCG4 implements two independent 8-bit D-type latched transceivers with separate A-to-B and B-to-A control paths-including dedicated Latch Enable (LEAB/LEBA), Output Enable (OEAB/OEBA), and Direction Enable (CEAB/CEBA) inputs. Its dual-latch architecture enables concurrent or staggered data capture and output gating per 8-bit lane.
It integrates current-limiting resistors in 24 mA balanced output drivers to minimize undershoot and eliminate need for external termination resistors. The Ioff circuitry ensures outputs are disabled during power-down, preventing damaging backflow current when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard 5V TTL/CMOS logic rails and legacy industrial bus systems |
| Output Drive | ±24 mA - balanced sourcing/sinking enables clean signal integrity on unterminated transmission lines |
| Ground Bounce | <0.6 V at VCC = 5 V, TA = 25°C - reduces simultaneous switching noise in dense PCB layouts |
| Propagation Delay | Max 6.5 ns (transparent mode) - supports >150 MHz data throughput in latch-transparent operation |
| Output Skew | <0.5 ns - ensures tight timing alignment across all 16 outputs for synchronous bus applications |
| Ioff Support | Enabled at VCC = 0 V - prevents back-current damage during hot-swap or partial system power-down |
| Operating Temp | −40°C to +85°C - qualified for industrial control, telecom infrastructure, and embedded computing environments |
Pinout & Package
56-pin Shrink Small Outline Package (SSOP), DL package drawing, 300-mil body width (13.9–14.1 mm), 0.630–0.620 inch length, 1.2 mm max height, JEDEC MO-118 compliant. RoHS-compliant, green (Pb-free, no Sb/Br), CU NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OEAB, 2OEAB, 1OEBA, 2OEBA | A/B Output Enable (active LOW) | Independent three-state control per 8-bit lane; enables/disables B or A outputs without affecting latch state |
| 1LEAB, 2LEAB, 1LEBA, 2LEBA | A/B Latch Enable (active LOW) | Edge-triggered storage: LOW-to-HIGH transition captures A or B inputs into respective latches |
| 1CEAB, 2CEAB, 1CEBA, 2CEBA | A/B Direction Enable (active LOW) | Gates data flow direction; must be LOW to enable input capture or output driving in selected direction |
| A1–A16 | A-side I/O terminals | Bi-directional: serve as inputs when capturing data into A latches, or three-state outputs when driving B bus |
| B1–B16 | B-side I/O terminals | Bi-directional: serve as inputs when capturing data into B latches, or three-state outputs when driving A bus |
| VCC, GND (pins 28, 56, etc.) | Power supply pins | Dual VCC/GND pairs per half-package reduce supply impedance and improve noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| 24 mA balanced output drivers | Eliminates need for external series termination resistors on point-to-point or stubbed transmission lines |
| Edge-rate control circuitry | Reduces EMI and crosstalk in high-density routing by limiting dV/dt without sacrificing propagation speed |
| Ioff partial-power-down support | Allows safe insertion/removal in live backplanes where only one side of the transceiver is powered |
| Typical output skew <0.5 ns | Enables reliable capture of wide parallel buses (e.g., 16-bit address/data) by FPGA or ASIC receivers |
| Industrial temperature range | Validated operation from −40°C to +85°C ensures reliability in uncontrolled ambient environments |
Applications
| Industrial Backplane Interface | Legacy System Bus Extension |
|---|---|
Use Scenario: Interfacing a modern microcontroller unit to an aging 16-bit ISA-compatible peripheral bus with strict timing and noise constraints. IC Role / Device Role / Timing Role: Bidirectional latched transceiver providing level-shifted, noise-suppressed, and skew-controlled data transfer between mismatched clock domains. Use Value: Enables drop-in replacement of obsolete bus interface ICs while maintaining full timing compliance and reducing board-level filtering components. | Use Scenario: Extending a 5V CPU bus across multiple PCBs in a modular test equipment rack using ribbon cables. IC Role / Device Role / Timing Role: Direction-controlled, latch-isolated buffer that decouples timing between master and slave boards and suppresses ground bounce-induced glitches. Use Value: Eliminates need for external termination and pull-up networks, lowering BOM cost and improving signal fidelity over 30 cm cable runs. |
| High-Speed Data Acquisition Front-End | Programmable Logic Interface Bridge |
Use Scenario: Capturing parallel ADC output (16-bit, 10 MSPS) into an FPGA with precise setup/hold timing margins. IC Role / Device Role / Timing Role: Input latch synchronizer with 4.0 ns minimum LE pulse width and sub-nanosecond skew across all bits. Use Value: Guarantees deterministic sampling window alignment across all 16 channels, avoiding bit misalignment errors in time-critical measurements. | Use Scenario: Connecting a CPLD-based control logic block to a legacy 5V parallel EEPROM or SRAM array. IC Role / Device Role / Timing Role: Three-state bus isolator with independent OE/LE controls allowing dynamic read/write direction switching under logic control. Use Value: Prevents bus contention during state transitions and supports mixed-voltage design where CPLD operates at 3.3V but memory requires 5V drive levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16543TPVC | 64 mA sink / 32 mA source drive; higher ground bounce (~1.0 V); no current-limiting resistors | Better suited for driving heavy capacitive loads (e.g., >100 pF per line), less optimal for transmission-line matching | Select when maximum drive strength is required and external termination is acceptable |
| 74FCT162H543TPVCG4 | Includes bus-hold circuitry on all data inputs; retains last valid state during high-Z; same 24 mA drive | Eliminates need for external pull-up/down resistors on floating control/data lines; adds ~1 µA input leakage | Select when input signal integrity is compromised by long traces or intermittent connections |
Compared with CY74FCT16543TPVC and 74FCT162H543TPVCG4, the 74FCT162543TPVCG4 uniquely balances low-noise transmission-line drive, minimal ground bounce, and latch-controlled bidirectional flow-making it optimal for noise-sensitive, medium-load interconnects where termination simplicity and timing precision are critical.
Availability
74FCT162543TPVCG4 is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy bus extensions, high-speed data acquisition front-ends, and programmable logic interface bridges requiring stable component supply and long-term lifecycle support.
Supply support for 74FCT162543TPVCG4 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 for industrial, automotive, and communications markets.
The 74FCT162543TPVCG4 belongs to TI's FCT logic family, engineered for high-speed, low-noise 5V bus interfacing with emphasis on signal integrity, power-down safety, and industrial reliability.
FAQ
What is the maximum propagation delay of the 74FCT162543TPVCG4 in transparent mode?
The 74FCT162543TPVCG4 has a maximum propagation delay of 6.5 ns in transparent mode (A-to-B or B-to-A), measured under industrial conditions (VCC = 4.5 V to 5.5 V, TA = −40°C to +85°C). This value is specified in the official Texas Instruments datasheet SCCS059B and applies directly to the 74FCT162543TPVCG4 variant with SSOP packaging and standard speed grade.
Does the 74FCT162543TPVCG4 support partial power-down operation?
Yes, the 74FCT162543TPVCG4 supports partial power-down via its Ioff circuitry. When VCC = 0 V, the outputs are actively disabled to prevent damaging current backflow-even if input or output signals remain active. This feature is explicitly confirmed in the functional description and electrical characteristics section of the TI datasheet for the 74FCT162543TPVCG4.
What is the output drive strength of the 74FCT162543TPVCG4?
The 74FCT162543TPVCG4 provides balanced ±24 mA output drive capability, verified in the "Output Drive Characteristics" table of the TI datasheet. This symmetric sourcing/sinking current enables clean signal edges on transmission lines without external termination resistors and is distinct from the higher-drive CY74FCT16543T variant.
Is the 74FCT162543TPVCG4 pin-compatible with other members of the CY74FCT16x543 family?
Yes, the 74FCT162543TPVCG4 shares identical 56-pin SSOP (DL) pinout and function mapping with CY74FCT16543TPVC and CY74FCT162H543TPVC, including identical placement of OEAB/OEBA, LEAB/LEBA, CEAB/CEBA, and A/B I/O banks. Pin compatibility is confirmed by TI's package diagrams and functional descriptions across the family datasheet SCCS059B.
What is the operating temperature range for the 74FCT162543TPVCG4?
The 74FCT162543TPVCG4 is rated for industrial temperature operation from −40°C to +85°C, as specified in the "Operating Range" table of the TI datasheet SCCS059B. This range is guaranteed for all electrical and switching parameters and applies specifically to the 74FCT162543TPVCG4 ordering variant with SSOP packaging and green RoHS-compliant finish.
74FCT162543TPVCG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
74FCT162543TPVCG4 FAQ
1.How can I place an order for 74FCT162543TPVCG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162543TPVCG4 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 74FCT162543TPVCG4 reliable?
The price and inventory of 74FCT162543TPVCG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162543TPVCG4 is usually 5 days.
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74FCT162543TPVCG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162543TPVCG4 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 74FCT162543TPVCG4?
For technical support, including 74FCT162543TPVCG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162543TPVCG4 requirements.
6.How does Aetrix verify that 74FCT162543TPVCG4 is sourced from the original manufacturer or authorized distributors?
All 74FCT162543TPVCG4 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 74FCT162543TPVCG4 meets industry standards.
7.What is the process for return or replacement of 74FCT162543TPVCG4?
All 74FCT162543TPVCG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162543TPVCG4, 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 74FCT162543TPVCG4 part is unused and in its original packaging.
Return procedure for 74FCT162543TPVCG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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