My Inquiry
My Account
Renesas 74FCT3244APYG
- Part No.:
- 74FCT3244APYG
- Manufacturer:
- Renesas
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74FCT3244APYG.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,087
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74FCT3244APYG from Renesas Electronics is a 3.3V CMOS octal buffer/line driver with dual-nibble 3-state control, rail-to-rail output swing, ±60 mA output drive, and industrial temperature range (–40°C to +85°C). It serves as a memory data/address driver or bus-oriented transmitter in high-noise digital systems.
For engineers reviewing the 74FCT3244APYG datasheet, 74FCT3244APYG pinout, 74FCT3244APYG application, or 74FCT3244APYG equivalent, key selection criteria include its 3.3V operation, 4.8 ns max propagation delay (FCT3244A version), dual 3-state enable inputs, and SSOP-20 package compatibility with space-constrained PCB layouts.
Technical Context
The 74FCT3244APYG implements two independent 4-bit groups (1A1–1A4 / 2A1–2A4) each controlled by separate active-low 3-state enables (1OE, 2OE), enabling flexible nibble- or byte-wide bus management. Its input hysteresis (150 mV typ.) and rail-to-rail output swing improve noise immunity in mixed-signal environments.
Designed using 0.5 µm CMOS technology, it delivers TTL-compatible logic thresholds (VIH = 2 V min, VIL = 0.8 V max) while maintaining CMOS power efficiency (0.4 µW static typ.) and ESD robustness (>2000 V HBM, >200 V MM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports both nominal 3.3 V and extended supply tolerance for system-level voltage margining |
| Propagation Delay | 4.8 ns max (tPLH/tPHL) at VCC = 3.3 V - ensures timing compliance in 100+ MHz address/data buses |
| Output Drive | ±60 mA (IODH/IODL) - drives heavy capacitive loads (e.g., 50 pF + trace) without signal degradation |
| Input Hysteresis | 150 mV typ. - suppresses false triggering from slow or noisy input edges |
| Operating Temp | –40°C to +85°C - qualified for industrial automation, motor control, and base station equipment |
| ESD Rating | >2000 V HBM, >200 V MM - withstands handling and board-level electrostatic events |
Pinout & Package
74FCT3244APYG is housed in a 20-pin Shrink Small Outline Package (SSOP), 0.65 mm pitch, 7.2 mm × 5.3 mm body size, with exposed pad not present. Pin numbering follows standard JEDEC MS-012 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low 3-state enables - independently disable Group 1 (pins 2–5, 18–15) or Group 2 (pins 12–9, 8–11) |
| 2–5, 12–15 | 1A1–1A4, 2A1–2A4 | Data inputs - accept TTL-compatible logic levels with hysteresis for noise rejection |
| 6–9, 16–19 | 1Y1–1Y4, 2Y1–2Y4 | 3-state outputs - rail-to-rail swing (0 V to VCC) maximizes noise margin in dense routing |
| 10, 20 | GND, VCC | Power terminals - decoupling required within 5 mm of pins 10 and 20 for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| Dual-nibble 3-state control | Independent 1OE/2OE pins allow selective isolation of upper/lower data nibbles without full bus shutdown |
| Rail-to-rail output swing | VOH = VCC – 0.2 V min, VOL = 0.2 V max at 16 mA - eliminates level-shifting needs in 3.3 V-only systems |
| Input hysteresis | 150 mV typical - rejects sub-150 mV noise spikes on address or control lines without external filtering |
| Low quiescent current | ICCL = 10 µA max - reduces standby power in always-on industrial controllers |
Applications
| Memory Interface Driver | Industrial Bus Transceiver |
|---|---|
Use Scenario: Driving parallel SRAM or Flash memory address/data buses in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Bidirectional buffer isolating microcontroller address lines from memory load capacitance during read/write cycles. Use Value: 4.8 ns propagation delay and ±60 mA drive ensure setup/hold timing margins are met across –40°C to +85°C ambient. | Use Scenario: Level-shifting and fanout expansion for RS-485 or CAN controller interface signals in factory automation nodes. IC Role / Device Role / Timing Role: Unidirectional line driver translating MCU GPIO outputs to robust 3.3 V bus signals with noise-immune inputs. Use Value: Input hysteresis and rail-to-rail outputs maintain signal integrity over long traces and noisy 24 V DC plant environments. |
| Clock Distribution Buffer | Test Equipment Signal Conditioning |
Use Scenario: Distributing low-skew clock signals to multiple FPGA configuration or ADC sampling clocks in test instrumentation. IC Role / Device Role / Timing Role: Low-jitter, high-fanout clock buffer with matched propagation delays across all eight outputs. Use Value: Max 4.8 ns tPLH/tPHL variation between channels minimizes clock skew in synchronous sampling systems. | Use Scenario: Conditioning digital stimulus signals in automated test equipment (ATE) before applying to DUT inputs. IC Role / Device Role / Timing Role: Isolating pattern generator outputs from variable DUT input capacitance using 3-state control. Use Value: Dual OE pins enable precise per-nibble gating during test vector sequencing without bus contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC244APW | Lower drive (±24 mA), wider VCC range (1.65–3.6 V), no input hysteresis | Suitable for battery-powered portable devices but lacks noise immunity for industrial backplanes | Select when ultra-low static power (<1 µA) and wide supply flexibility outweigh noise margin requirements |
| SN74AHCT244N | 5 V tolerant inputs, 5 V VCC only, higher propagation delay (10 ns max), no rail-to-rail outputs | Compatible with legacy 5 V logic families but incompatible with 3.3 V-only systems | Choose only if interfacing with 5 V microcontrollers or peripherals requiring TTL-level input thresholds |
Compared with 74LVC244APW and SN74AHCT244N, the 74FCT3244APYG uniquely balances industrial-grade noise immunity (hysteresis + rail-to-rail swing), 3.3 V optimization, and dual-nibble control-making it optimal for deterministic timing in harsh electromagnetic environments.
Availability
74FCT3244APYG is available at Aetrix Electronics and suitable for industrial PLCs, factory automation gateways, test instrumentation, and embedded computing platforms requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74FCT3244APYG 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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The 74FCT3244APYG belongs to Renesas' FCT logic family-designed specifically for high-speed, low-power, noise-immune 3.3 V bus interface and memory driving in industrial and telecom equipment.
FAQ
What is the maximum operating frequency supported by the 74FCT3244APYG?
The 74FCT3244APYG does not specify a maximum clock frequency, as it is a combinatorial buffer-not a clocked device. Its 4.8 ns maximum propagation delay (tPLH/tPHL) supports reliable operation in data/address buses running up to ~200 MHz (based on 5 ns timing budget). System-level frequency limits depend on load capacitance, trace length, and termination.
Does the 74FCT3244APYG support hot-swap or live-insertion?
No, the 74FCT3244APYG is not hot-swap rated. Its absolute maximum terminal voltage ratings (e.g., VTERM = –0.5 V to VCC+0.5 V on outputs) and lack of power-up/down protection circuitry mean it must be powered before signal application. Use dedicated hot-swap buffers (e.g., TI TPS229xx) if live insertion is required.
Can the 74FCT3244APYG drive a 50 pF load at 3.3 V while meeting timing specs?
Yes-the 74FCT3244APYG's switching characteristics are characterized with CL = 50 pF and RL = 500 Ω. At VCC = 3.3 V, its max tPLH/tPHL remains 4.8 ns under those conditions, and output drive (±60 mA) ensures clean edges into that load. Layout best practices (short traces, local decoupling) are still required.
Is the 74FCT3244APYG RoHS compliant and lead-free?
Yes, the 74FCT3244APYG is RoHS compliant and lead-free. Per Renesas' ordering information and datasheet revision history (updated Feb. 11, 2020), non-RoHS versions were removed from the orderable part list, and all current 74FCT3244APYG shipments meet JESD625-B and EU RoHS Directive 2011/65/EU requirements.
How does the dual 3-state enable (1OE/2OE) improve system design versus single-enable octal buffers?
The dual 3-state enable allows independent control of two 4-bit groups-enabling nibble-wise bus arbitration, partial data masking, or staggered enable timing. This reduces bus contention risk, simplifies glue logic in memory-mapped I/O, and supports legacy 4-bit peripheral interfaces without requiring additional discrete logic or software overhead in the 74FCT3244APYG implementation.
74FCT3244APYG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74FCT
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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
74FCT3244APYG FAQ
1.How can I place an order for 74FCT3244APYG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT3244APYG 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 74FCT3244APYG reliable?
The price and inventory of 74FCT3244APYG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT3244APYG is usually 5 days.
3.What payment methods are accepted for 74FCT3244APYG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT3244APYG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT3244APYG?
74FCT3244APYG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT3244APYG 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 74FCT3244APYG?
For technical support, including 74FCT3244APYG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT3244APYG requirements.
6.How does Aetrix verify that 74FCT3244APYG is sourced from the original manufacturer or authorized distributors?
All 74FCT3244APYG 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 74FCT3244APYG meets industry standards.
7.What is the process for return or replacement of 74FCT3244APYG?
All 74FCT3244APYG units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT3244APYG, 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 74FCT3244APYG part is unused and in its original packaging.
Return procedure for 74FCT3244APYG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74FCT3244APYG 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…
