My Inquiry
My Account
Renesas 74FCT3244APYG8
- Part No.:
- 74FCT3244APYG8
- Manufacturer:
- Renesas
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74FCT3244APYG8.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,094
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74FCT3244APYG8 from Renesas Electronics is a 3.3V CMOS octal buffer/line driver with dual-nibble 3-state control, rail-to-rail output swing, ±60mA drive capability, and industrial temperature range (–40°C to +85°C). It serves as a memory data/address driver, clock driver, or bus-oriented transmitter/receiver in high-speed digital systems.
For engineers reviewing the 74FCT3244APYG8 datasheet, 74FCT3244APYG8 pinout, 74FCT3244APYG8 application, or 74FCT3244APYG8 equivalent, key selection criteria include its 3.3V supply tolerance (2.7V–3.6V), 4.8ns max propagation delay (FCT3244A variant), input hysteresis for noise immunity, and SSOP-20 package compatibility with space-constrained PCB layouts.
Technical Context
The 74FCT3244APYG8 implements two independent 4-bit groups (1A–1Y and 2A–2Y), each controlled by separate active-low 3-state enables (1OE, 2OE), enabling flexible nibble- or byte-wide bus management. Its dual-metal CMOS process delivers TTL-compatible input thresholds with CMOS power efficiency.
Input hysteresis (150mV typ.) enhances noise margin against ground bounce and crosstalk, while rail-to-rail outputs ensure full VCC–GND swing under load. The device operates across 2.7V–3.6V with guaranteed logic levels at VIH ≥ 2.0V and VIL ≤ 0.8V, supporting mixed-voltage interface bridging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 3.6V - supports wide 3.3V system tolerance and brown-out resilience |
| Propagation Delay | 4.8ns max (tPLH/tPHL) - enables >100MHz bus operation with timing margin |
| Output Drive | ±60mA (IODH/IODL) - drives heavy capacitive loads or multiple TTL inputs |
| Input Hysteresis | 150mV typ. - suppresses false triggering on noisy address/data lines |
| Quiescent Current | 10μA max (ICCL) - minimizes standby power in always-on subsystems |
| Operating Temp | –40°C to +85°C - qualified for industrial control, motor drives, and base station equipment |
| Package | SSOP-20 (PYG20) - 0.65mm pitch, 7.2mm × 5.3mm footprint for compact routing |
Pinout & Package
74FCT3244APYG8 is housed in a 20-pin Shrink Small Outline Package (SSOP), pin-compatible with industry-standard 20-pin logic buffers. The package features gull-wing leads, 0.65mm pitch, and thermal performance suitable for reflow-soldered industrial assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 6, 8, 11, 13, 15 | 1A1–1A4, 2A1–2A4 Inputs | CMOS inputs with hysteresis; accept 2.0V–5.5V logic-high, tolerate –0.5V undershoot |
| 3, 5, 7, 9, 12, 14, 16, 18 | 1Y1–1Y4, 2Y1–2Y4 Outputs | 3-state CMOS outputs; rail-to-rail swing, ±60mA sink/source, clamp diodes to GND/VCC |
| 19, 10 | 1OE, 2OE Enable Inputs | Active-low controls per nibble; enable/disable timing <7ns ensures clean bus turnarounds |
| 20, 17 | VCC, GND | Power pins placed diagonally for low-inductance decoupling; requires local 0.1μF ceramic |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Ensures full noise margin in 3.3V systems, eliminating level-shifter requirements for downstream CMOS loads |
| Input hysteresis (150mV) | Rejects fast transients on shared buses without external filtering components |
| Dual-nibble 3-state control | Enables independent gating of upper/lower data bytes-critical for multiplexed address/data buses |
| 0.4μW static power (typ.) | Reduces thermal load in dense logic arrays and extends battery life in standby modes |
| ESD robustness (>2kV HBM) | Survives handling and board-level ESD events without protection diodes or layout overhead |
Applications
| Memory Interface | Industrial Bus Transceiver |
|---|---|
|
Use Scenario: Driving 32-bit address lines from an FPGA to SRAM or Flash memory in programmable logic controllers. IC Role / Device Role / Timing Role: Address buffer with dual-nibble enable, isolating FPGA I/O from memory bus capacitance and noise. Use Value: 4.8ns propagation delay and ±60mA drive maintain setup/hold timing across 10cm traces loaded with 30pF per pin. |
Use Scenario: Level-shifting and buffering between 3.3V microcontroller GPIO and legacy 5V RS-485 transceivers in factory automation nodes. IC Role / Device Role / Timing Role: Voltage-tolerant buffer translating logic levels while providing bus contention isolation via 3-state control. Use Value: Input VIH up to 5.5V and rail-to-rail outputs allow direct connection to 5V peripherals without external resistors or translators. |
| Clock Distribution | Test Equipment Signal Conditioning |
|
Use Scenario: Fan-out of a 50MHz system clock to multiple ASIC clock inputs in automated test equipment backplanes. IC Role / Device Role / Timing Role: Low-skew, low-jitter clock driver with matched propagation paths across all eight outputs. Use Value: 1.5ns min tPLH/tPHL matching and <1ns skew ensure synchronous sampling across distributed logic blocks. |
Use Scenario: Conditioning high-speed digital stimulus signals before injection into DUTs during boundary-scan or functional testing. IC Role / Device Role / Timing Role: Output driver with fast enable/disable (<6.2ns tPZH) for precise pulse gating and signal blanking. Use Value: Sub-7ns enable/disable times support nanosecond-precision signal masking windows required by IEEE 1149.1 compliance tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT244NSR | TI part in SOIC-20; identical 3.3V operation but no input hysteresis; 5.5ns max tPLH | Lacks noise immunity on marginal signal integrity paths; requires external RC filtering in noisy environments | Prefer 74FCT3244APYG8 where bus noise exceeds 100mV peak-to-peak or layout lacks guard traces |
| 74LVC244APW | Nexperia part in TSSOP-20; 1.65V–3.6V VCC range; 3.8ns max tPLH; ±24mA drive only | Lower drive strength limits trace length and fan-out; unsuitable for driving >10pF loads or multiple TTL inputs | Select 74FCT3244APYG8 when interfacing to legacy 5V TTL or long (>15cm) PCB traces with >20pF capacitance |
Compared with SN74FCT244NSR and 74LVC244APW, the 74FCT3244APYG8 uniquely combines industrial-grade hysteresis, ±60mA drive, and SSOP packaging-making it optimal for ruggedized bus interfaces where signal integrity and load capacity are non-negotiable.
Availability
74FCT3244APYG8 is available at Aetrix Electronics and suitable for industrial control systems, automated test equipment, and embedded communications modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74FCT3244APYG8 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and infrastructure markets.
The 74FCT3244APYG8 belongs to Renesas' legacy FCT logic family-designed specifically for high-speed, low-power 3.3V bus interfacing in mission-critical industrial and telecom equipment.
FAQ
What is the maximum operating frequency supported by the 74FCT3244APYG8?
The 74FCT3244APYG8 does not specify a maximum clock frequency directly, but its 4.8ns maximum propagation delay (tPLH/tPHL) and sub-7ns enable/disable times support reliable operation in systems with data rates exceeding 100MHz. Actual usable frequency depends on load capacitance, trace length, and signal integrity design-verified in Renesas' switching characteristics test conditions with CL = 50pF and RL = 500Ω.
Does the 74FCT3244APYG8 support mixed-voltage interfacing, such as 3.3V logic driving 5V-tolerant inputs?
Yes, the 74FCT3244APYG8 supports mixed-voltage interfacing: its inputs tolerate up to 5.5V (VIH max), allowing direct connection to 5V logic outputs, while its rail-to-rail 3.3V outputs meet VIH requirements of most 5V CMOS and TTL inputs. This eliminates external level shifters in many 3.3V-to-5V bridge applications.
What is the function of the hysteresis specification (150mV) for the 74FCT3244APYG8 inputs?
The 150mV typical input hysteresis in the 74FCT3244APYG8 raises the threshold for detecting a rising edge (VIH) above that for a falling edge (VIL), creating a noise immunity window. This prevents oscillation or chatter on slow-rising or noisy address/data lines-especially critical in industrial environments with EMI, ground bounce, or long unterminated traces.
Can the 74FCT3244APYG8 be used in place of the older 74FCT3244 (non-A) version?
Yes-the 74FCT3244APYG8 is the enhanced "A" revision with improved AC characteristics: 4.8ns max propagation delay versus 6.5ns for the base 74FCT3244, and tighter enable/disable timing. Pinout, DC specs, and package are identical, making it a drop-in upgrade for designs requiring higher speed or better timing margins.
Is the 74FCT3244APYG8 RoHS-compliant and lead-free?
Yes, the 74FCT3244APYG8 is RoHS-compliant and lead-free, as confirmed in Renesas' ordering information and datasheet revision history (updated post-2009 to remove non-RoHS variants). The "G" suffix in the orderable part number denotes green (halogen-free, lead-free) packaging per JEDEC standards.
74FCT3244APYG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74FCT
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 8mA, 24mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
74FCT3244APYG8 FAQ
1.How can I place an order for 74FCT3244APYG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT3244APYG8 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 74FCT3244APYG8 reliable?
The price and inventory of 74FCT3244APYG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT3244APYG8 is usually 5 days.
3.What payment methods are accepted for 74FCT3244APYG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT3244APYG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT3244APYG8?
74FCT3244APYG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT3244APYG8 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 74FCT3244APYG8?
For technical support, including 74FCT3244APYG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT3244APYG8 requirements.
6.How does Aetrix verify that 74FCT3244APYG8 is sourced from the original manufacturer or authorized distributors?
All 74FCT3244APYG8 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 74FCT3244APYG8 meets industry standards.
7.What is the process for return or replacement of 74FCT3244APYG8?
All 74FCT3244APYG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT3244APYG8, 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 74FCT3244APYG8 part is unused and in its original packaging.
Return procedure for 74FCT3244APYG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74FCT3244APYG8 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
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
