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Texas Instruments CY74FCT162543CTPVC
- Part No.:
- CY74FCT162543CTPVC
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT162543CTPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,713
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Product details
Overview
CY74FCT162543CTPVC 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, propagation delay ≤5.1 ns (transparent mode), and Ioff support for partial-power-down operation. It is used in high-speed backplane and transmission-line interfacing between dual-bus systems.
For engineers reviewing the CY74FCT162543CTPVC datasheet, CY74FCT162543CTPVC pinout, CY74FCT162543CTPVC application, or CY74FCT162543CTPVC equivalent, key selection criteria include output drive symmetry, ground bounce suppression, latch timing margins, bus direction control granularity, and compatibility with 5-V TTL/CMOS logic families.
Technical Context
The CY74FCT162543CTPVC implements two independent 8-bit D-type latched transceivers, each with separate Latch Enable (LEAB/LEBA) and Output Enable (OEAB/OEBA) controls. Data flow direction (A↔B) is managed via dedicated CEAB/CEBA enable inputs, allowing bidirectional, non-overlapping bus arbitration.
Its 24 mA balanced sourcing/sinking capability-achieved through integrated current-limiting resistors-reduces external termination needs and minimizes undershoot. Edge-rate control circuitry and Ioff protection ensure robust noise immunity and safe partial-power-down behavior when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC | 5 V ±10% - compatible with standard 5-V TTL/CMOS logic rails and legacy system power domains |
| Propagation Delay (Transparent) | ≤5.1 ns - enables reliable 196 MHz data throughput in non-latched mode for high-speed interconnects |
| Output Drive | ±24 mA - symmetric sourcing/sinking eliminates net DC current on shared buses and reduces EMI |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - ensures signal integrity during simultaneous switching of multiple outputs |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded control, instrumentation, and telecom infrastructure |
| Ioff Protection | Active at VCC = 0 V - prevents backflow current into powered-down sections, supporting hot-swap and power sequencing |
| ESD Rating | >2000 V HBM - provides robust handling margin during board assembly and field service |
Pinout & Package
Package: 56-pin SSOP (Shrunk Small Outline Package), 300-mil body width, JEDEC MO-118 compliant, 0.630" × 0.370" footprint, 1.2 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OEAB, 2OEAB, 1OEBA, 2OEBA | A-to-B / B-to-A Output Enable (Active LOW) | Independent three-state control per 8-bit segment - enables selective bus isolation without affecting adjacent channels |
| 1CEAB, 2CEAB, 1CEBA, 2CEBA | A-to-B / B-to-A Direction Enable (Active LOW) | Enables data path entry (A→B or B→A) only when asserted - prevents bus contention during direction transitions |
| 1LEAB, 2LEAB, 1LEBA, 2LEBA | A-to-B / B-to-A Latch Enable (Active LOW) | Edge-triggered storage control - LOW-to-HIGH transition captures A or B inputs into transparent latches for synchronous handshaking |
| A1–A8, A9–A16 | A-side Data I/O | Bi-directional terminals: input when CEAB/CEBA active and OEAB/OEBA inactive; output when OEAB/OEBA active and latched |
| B1–B8, B9–B16 | B-side Data I/O | Bi-directional terminals: functionally identical to A-side but independently controlled - supports full-duplex 16-bit bus bridging |
| VCC, GND | Power Supply | Dual VCC/GND pairs (pins 27/28 and 55/56) reduce supply impedance and improve noise rejection across wide bus |
Key Features
| Feature | Design Value |
|---|---|
| Balanced 24 mA output drivers | Eliminates need for external series termination and reduces ground bounce-induced jitter on multi-drop transmission lines |
| Edge-rate control circuitry | Significantly lowers radiated emissions and crosstalk in dense PCB layouts with parallel data buses |
| Ioff partial-power-down support | Disables outputs when VCC = 0 V - prevents back-driving of live buses during power sequencing or hot-plug events |
| Typical output skew < 0.5 ns | Ensures tight timing alignment across all 16 bits - critical for setup/hold compliance in synchronous memory or FIFO interfaces |
| Industrial temperature range | Validated operation from −40°C to +85°C - suitable for uncontrolled environments in factory automation and outdoor telecom nodes |
Applications
| Backplane Interfacing | High-Speed Bus Bridging |
|---|---|
|
Use Scenario: Connecting processor local bus to peripheral expansion backplane with 16-bit address/data multiplexing. IC Role / Device Role / Timing Role: Bidirectional latched transceiver providing direction-controlled, glitch-free data transfer between asynchronous clock domains. Use Value: 5.1 ns propagation delay and 0.5 ns output skew maintain timing margins across 16-bit parallel paths at >100 MHz effective throughput. |
Use Scenario: Isolating and synchronizing two independent 16-bit data buses in modular test equipment with hot-swappable modules. IC Role / Device Role / Timing Role: Dual 8-bit latch-based transceiver enabling independent control of data capture and output enable per segment. Use Value: Separate CEAB/OEAB/LEAB controls per 8-bit group allow fine-grained arbitration and eliminate bus contention during module insertion/removal. |
| Transmission-Line Driving | Industrial Control Backplane |
|
Use Scenario: Driving 50-Ω controlled-impedance traces over 15 cm lengths on a multilayer PCB in an automated inspection system. IC Role / Device Role / Timing Role: Balanced-output driver with integrated current limiting, reducing reflections and overshoot at line endpoints. Use Value: 24 mA drive strength and edge-rate control suppress undershoot below 0.3 V, ensuring clean eye diagrams at 80 Mbps. |
Use Scenario: Interfacing PLC CPU module to distributed I/O rack via 16-bit parallel control bus in harsh factory environments. IC Role / Device Role / Timing Role: Industrial-qualified transceiver with Ioff and >2000 V HBM ESD protection for long-term reliability in electrically noisy settings. Use Value: −40°C to +85°C operation and robust ground bounce performance (<0.6 V) prevent data corruption during motor startup transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16543CTPVC | 64 mA sink / 32 mA source drive; higher ground bounce (typ. 1.0 V); no output balancing | Better suited for driving heavy capacitive loads (e.g., >100 pF per line), less optimal for low-noise transmission lines | Select when load capacitance exceeds 75 pF per line and ground bounce is less critical than raw drive strength. |
| CY74FCT162H543CTPVC | Includes bus-hold circuitry on all data inputs; same 24 mA drive and ground bounce specs | Eliminates external pull-up/down resistors on floating inputs - ideal for systems with intermittent bus activity or undefined states | Choose when input pins may float during reset or standby, and board space for discrete biasing is constrained. |
Compared with CY74FCT16543CTPVC and CY74FCT162H543CTPVC, the CY74FCT162543CTPVC uniquely optimizes for low-noise transmission-line driving via balanced 24 mA outputs and sub-0.6 V ground bounce, while retaining full functional compatibility in latch and enable logic.
Availability
CY74FCT162543CTPVC is available at Aetrix Electronics and suitable for industrial control backplanes, automated test equipment interfaces, high-speed bus bridging, and transmission-line driving applications requiring stable component supply and long-term manufacturability.
Supply support for CY74FCT162543CTPVC 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 delivering analog and embedded processing solutions, with deep expertise in logic, interface, and timing devices for industrial, automotive, and communications markets.
The CY74FCT162543CTPVC belongs to TI's FCT logic family, designed specifically for high-speed, low-noise 5-V bus interfacing in industrial and telecom infrastructure where signal integrity, power sequencing safety, and thermal reliability are critical.
FAQ
What is the maximum clock frequency supported by CY74FCT162543CTPVC in transparent mode?
The CY74FCT162543CTPVC achieves ≤5.1 ns propagation delay in transparent mode, supporting reliable data rates up to 196 MHz (1/5.1 ns) under nominal conditions. Actual maximum frequency depends on layout parasitics, load capacitance, and timing margins required by the receiving device. The CY74FCT162543CTPVC is not a clocked device but relies on external control signals for synchronization.
Does CY74FCT162543CTPVC support hot-swap or partial-power-down operation?
Yes, CY74FCT162543CTPVC includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during hot-swap or power sequencing events. This feature is explicitly characterized and guaranteed across the industrial temperature range, making CY74FCT162543CTPVC suitable for modular systems with staggered power-up sequences.
How does the 24 mA balanced output driver in CY74FCT162543CTPVC improve signal integrity?
The 24 mA balanced sourcing/sinking capability in CY74FCT162543CTPVC ensures equal rise/fall times and minimizes ground bounce (<0.6 V typ.), reducing simultaneous switching noise (SSN) and undershoot on transmission lines. Integrated current-limiting resistors eliminate the need for external series termination, simplifying layout and improving eye diagram quality at high data rates.
What is the pin-compatible alternative to CY74FCT162543CTPVC with bus-hold functionality?
CY74FCT162H543CTPVC is a pin-compatible variant of CY74FCT162543CTPVC that adds bus-hold circuitry to all A- and B-side data inputs. It retains identical 24 mA drive strength, ground bounce performance, and timing specifications, but eliminates the need for external pull-up/pull-down resistors when inputs float - ideal for systems with undefined idle states.
Can CY74FCT162543CTPVC be used with 3.3-V logic systems?
No, CY74FCT162543CTPVC is specified only for VCC = 5 V ±10% and has TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V). Direct connection to 3.3-V logic requires level-shifting circuitry. For native 3.3-V operation, consider TI's ALVC or LVT logic families instead of the FCT series.
CY74FCT162543CTPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
CY74FCT162543CTPVC FAQ
1.How can I place an order for CY74FCT162543CTPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT162543CTPVC 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 CY74FCT162543CTPVC reliable?
The price and inventory of CY74FCT162543CTPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162543CTPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT162543CTPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162543CTPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT162543CTPVC?
CY74FCT162543CTPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT162543CTPVC 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 CY74FCT162543CTPVC?
For technical support, including CY74FCT162543CTPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162543CTPVC requirements.
6.How does Aetrix verify that CY74FCT162543CTPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT162543CTPVC 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 CY74FCT162543CTPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT162543CTPVC?
All CY74FCT162543CTPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162543CTPVC, 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 CY74FCT162543CTPVC part is unused and in its original packaging.
Return procedure for CY74FCT162543CTPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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