My Inquiry
My Account
Texas Instruments CY74FCT163244APVC
- Part No.:
- CY74FCT163244APVC
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CY74FCT163244APVC.pdf
- Description:
- BUS DRIVER, FCT SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:2,185
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY74FCT163244APVC from Texas Instruments is a 16-bit non-inverting 3-state buffer/line driver with balanced 24 mA output drive, designed for memory and clock bus interface applications requiring high-speed (4.1 ns propagation delay), low power (ICC < 10 µA), and 5V-tolerant I/O in industrial temperature range (–40°C to +85°C).
For engineers reviewing the CY74FCT163244APVC datasheet, CY74FCT163244APVC pinout, CY74FCT163244APVC application, or CY74FCT163244APVC equivalent, this device serves as a pin-compatible FCT-C speed replacement for LCX/LPT families in 3.3V systems with live-insertion support, edge-rate control, and robust noise immunity.
Technical Context
The CY74FCT163244APVC implements four independent 4-bit groups of non-inverting buffers, each controlled by dedicated active-low 3-state enable inputs (1OE–4OE). Its architecture supports flexible 4-bit, 8-bit, or full 16-bit bus operation without internal logic coupling between groups.
It features current-limiting resistors integrated into 24 mA balanced output drivers, power-off disable (IOFF < ±100 µA at VCC = 0 V), and input hysteresis (100 mV) for noise rejection - all operating across VCC = 2.7 V to 3.6 V with 5V-tolerant inputs/outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Enables direct use in 3.3V systems with margin for supply variation. |
| Propagation Delay (tPLH/tPHL) | 4.1 ns max at VCC = 3.0–3.6 V - Supports >200 MHz bus timing in synchronous interfaces. |
| Output Drive (IODL/IODH) | ±24 mA balanced - Sustains signal integrity driving 50-Ω transmission lines or multiple CMOS loads. |
| Input Voltage Tolerance | –0.5 V to +7.0 V - Allows safe interfacing with 5V logic sources without level shifters. |
| Power-Off Disable (IOFF) | ±100 µA at VCC = 0 V - Prevents back-driving and enables hot-swap capability in backplane systems. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded and communications equipment. |
| Output Skew (tSK(O)) | < 250 ps typical - Ensures tight timing alignment across all 16 outputs for parallel data paths. |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, JEDEC MO-118 compliant, 0.025-inch pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data Inputs (4 groups × 4 bits) | CMOS-compatible inputs accepting 5V-tolerant signals; no bus hold function. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | 3-State Outputs (4 groups × 4 bits) | 24 mA balanced drivers with current-limiting resistors; high-impedance when OE asserted. |
| 1OE, 2OE, 3OE, 4OE | Active-Low Output Enable (per group) | Independent control per 4-bit segment; enables mixed-width bus partitioning. |
| VCC (Pins 24, 48) | Power Supply | Dual VCC pins reduce supply inductance and improve noise immunity on wide buses. |
| GND (Pins 25, 47) | Ground Reference | Dual ground pins provide low-inductance return path for 16 outputs and minimize ground bounce (Volp). |
Key Features
| Feature | Design Value |
|---|---|
| FCT-C speed grade | 4.1 ns max propagation delay ensures compatibility with high-frequency memory and clock distribution timing budgets. |
| 24 mA balanced output drive | Supports fan-out to ≥10 LVTTL loads or point-to-point 50-Ω traces without external termination. |
| Power-off disable (IOFF) | Enables live insertion into powered backplanes by blocking current flow when VCC = 0 V. |
| Edge-rate control circuitry | Reduces simultaneous switching noise (SSN) and EMI emissions during output transitions. |
| Latch-up immunity | Exceeds JEDEC Std 17 - prevents destructive latch-up under transient overvoltage conditions. |
Applications
| Memory Interface Buffering | Clock Distribution Driver |
|---|---|
|
Use Scenario: Driving address/data buses between FPGA and SRAM/Flash in industrial controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating and strengthening parallel 16-bit memory bus signals. Use Value: 4.1 ns delay and <250 ps skew preserve setup/hold margins across all 16 lines at 100+ MHz operation. |
Use Scenario: Distributing a single system clock to multiple ASICs or memory banks in telecom line cards. IC Role / Device Role / Timing Role: Low-skew, high-drive clock fanout buffer with independent enable control per quadrant. Use Value: Dual VCC/GND pins and edge-rate control minimize jitter accumulation and ground bounce in multi-load clock trees. |
| Hot-Swappable Backplane Interface | Legacy Bus Translation Interface |
|
Use Scenario: Interfacing modular I/O cards to a powered 3.3V backplane with 5V-tolerant control lines. IC Role / Device Role / Timing Role: Level-tolerant buffer enabling safe insertion/removal while main system remains operational. Use Value: IOFF ≤ ±100 µA at VCC = 0 V prevents back-powering and signal contention during card swap. |
Use Scenario: Bridging 5V microcontroller GPIOs to 3.3V peripheral buses in industrial PLC modules. IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional buffer (with external direction control) for mixed-voltage subsystems. Use Value: 5V-tolerant inputs eliminate need for discrete level shifters; 24 mA drive sustains signal integrity over PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT163244CPVC | Same package (SSOP), but 4.8 ns propagation delay (slower speed grade); identical VCC range, drive, and pinout. | Lower-speed applications where timing budget allows ≥4.8 ns delay; otherwise functionally interchangeable. | Select CPVC only if design tolerates slower propagation; APVC preferred for timing-critical 100+ MHz buses. |
| SN74LVC16244ADGGR | 3.3V-only I/O (not 5V-tolerant); 24 mA drive; 3.5 ns typical delay; same 48-pin TSSOP footprint (Z48), not SSOP. | Requires external level shifting for 5V source signals; unsuitable for live-insertion due to lack of IOFF spec. | Choose only in fully 3.3V systems with no 5V interfacing or hot-swap requirements; verify layout compatibility with TSSOP vs SSOP. |
Compared with CY74FCT163244CPVC and SN74LVC16244ADGGR, the CY74FCT163244APVC uniquely combines 4.1 ns speed, 5V-tolerant I/O, power-off disable, and SSOP packaging - making it the sole option for industrial hot-swap 3.3V bus interfaces demanding both performance and robustness.
Availability
CY74FCT163244APVC is available at Aetrix Electronics and suitable for memory interface buffering, clock distribution, hot-swappable backplane interconnect, and legacy bus translation applications requiring stable component supply and long-term industrial availability.
Supply support for CY74FCT163244APVC 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, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The CY74FCT163244APVC belongs to TI's FCT logic family, engineered for high-speed, low-noise 3.3V bus interface applications with 5V tolerance and live-insertion capability in industrial environments.
FAQ
What is the maximum operating frequency supported by CY74FCT163244APVC?
The CY74FCT163244APVC does not specify a maximum clock frequency directly, but its 4.1 ns maximum propagation delay (tPLH/tPHL) supports reliable operation in systems with bus cycle times ≥8.2 ns - corresponding to effective data rates up to ~120 MHz for single-data-rate interfaces. Actual usable frequency depends on board layout, load capacitance, and system timing margins.
Does CY74FCT163244APVC include bus-hold circuitry on its inputs?
No, the CY74FCT163244APVC does not include bus-hold functionality. That feature is exclusive to the CY74FCT163H244 variant. The CY74FCT163244APVC requires externally terminated or actively driven inputs to avoid floating states - unlike its H-series counterpart which retains last valid logic state automatically.
Can CY74FCT163244APVC be used with a 5V supply voltage?
No, CY74FCT163244APVC must operate within VCC = 2.7 V to 3.6 V. While its inputs and outputs tolerate up to +7.0 V (5V-tolerant), applying 5V to VCC exceeds absolute maximum ratings and will damage the device. It is designed exclusively for 3.3V core logic systems interfacing to 5V peripherals.
What is the purpose of dual VCC and GND pins on CY74FCT163244APVC?
The dual VCC (pins 24, 48) and dual GND (pins 25, 47) on CY74FCT163244APVC reduce power supply inductance and distribute current across the 16-output structure. This minimizes ground bounce (Volp) and improves noise immunity - critical for maintaining signal integrity in high-speed parallel bus applications.
Is CY74FCT163244APVC RoHS compliant and lead-free?
Yes, CY74FCT163244APVC is RoHS-compliant and lead-free (Pb-Free), meeting EU Directive 2011/65/EU requirements. Per TI's packaging documentation, it uses matte tin (Sn) lead finish and falls under the "Pb-Free (RoHS)" eco-plan classification with JEDEC-standard moisture sensitivity level (MSL) rating.
CY74FCT163244APVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CY74FCT163244APVC FAQ
1.How can I place an order for CY74FCT163244APVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT163244APVC 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 CY74FCT163244APVC reliable?
The price and inventory of CY74FCT163244APVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT163244APVC is usually 5 days.
3.What payment methods are accepted for CY74FCT163244APVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT163244APVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT163244APVC?
CY74FCT163244APVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT163244APVC 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 CY74FCT163244APVC?
For technical support, including CY74FCT163244APVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT163244APVC requirements.
6.How does Aetrix verify that CY74FCT163244APVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT163244APVC 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 CY74FCT163244APVC meets industry standards.
7.What is the process for return or replacement of CY74FCT163244APVC?
All CY74FCT163244APVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT163244APVC, 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 CY74FCT163244APVC part is unused and in its original packaging.
Return procedure for CY74FCT163244APVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY74FCT163244APVC Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
