My Inquiry
My Account
Renesas 74ALVCH32245BFG
.jpg)
- Part No.:
- 74ALVCH32245BFG
- Manufacturer:
- Renesas
- Package:
- 96-LFBGA
- Datasheet:
-
74ALVCH32245BFG.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 96CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,094
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ALVCH32245BFG from Renesas Electronics (formerly IDT) is a 3.3V CMOS 32-bit bus transceiver with 3-state outputs and integrated bus-hold circuitry, designed for asynchronous bidirectional data transfer between two 32-bit buses. It features ±24mA output drive strength, industrial temperature range (–40°C to +85°C), and 96-ball LFBGA packaging. Used in high-speed 3.3V computing systems requiring noise-immune, floating-input-free interconnects.
For engineers reviewing the 74ALVCH32245BFG datasheet, 74ALVCH32245BFG pinout, 74ALVCH32245BFG application, or 74ALVCH32245BFG equivalent, key selection criteria include bus-hold retention current, output skew (<500 ps), tPLH/tPHL propagation delay (≤3 ns at VCC = 3.3V), and dual-voltage operation (2.5V/2.7V/3.3V).
Technical Context
The 74ALVCH32245BFG implements four independent 8-bit transceiver sections, each controlled by dedicated DIR and OE pins, enabling flexible partitioning of the 32-bit bus. Its bus-hold inputs retain last logic state during high-impedance conditions, eliminating external pull resistors.
It uses advanced dual-metal CMOS technology with hysteresis on all inputs for enhanced noise immunity, and supports rail-to-rail output swing across its extended supply range (2.5V ±0.2V, 2.7V–3.6V). Output drivers are rated for ±24mA sink/source into moderate-to-heavy loads without compromising speed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5V ±0.2V or 2.7V–3.6V - supports mixed-voltage system interfacing and legacy 2.5V compatibility |
| Output Drive | ±24mA - drives PCB traces, stubs, and capacitive loads up to ~30 pF while maintaining <3 ns propagation delay |
| Bus-Hold Current | IBHH/IBHL = ±75 μA at VCC = 3V - sustains input state against leakage or noise without external biasing |
| Propagation Delay | tPLH/tPHL ≤ 3 ns (VCC = 3.3V) - enables >300 MHz bus toggle rates in point-to-point configurations |
| Output Skew | tSK(o) ≤ 500 ps - ensures simultaneous valid data capture across all 32 bits in synchronous timing domains |
| Input Hysteresis | VH = 100 mV - rejects common-mode noise on shared backplane or ribbon-cable buses |
| ESD Rating | >2000V HBM, >200V MM - withstands handling and board-level ESD events in industrial assembly environments |
Pinout & Package
96-ball Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 13.5 mm × 5.5 mm footprint, 0.8 mm ball pitch, JEDEC MO-255 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR–4DIR | Direction control inputs (active HIGH) | Set data flow direction per 8-bit section: LOW = B→A, HIGH = A→B |
| 1OE–4OE | Output enable inputs (active LOW) | Force corresponding 8-bit port into high-impedance state, overriding DIR |
| 1A1–1A8, ..., 4A8 | Side-A I/O terminals | Connect to local bus (e.g., CPU or ASIC side); include bus-hold on all A-side pins |
| 1B1–1B8, ..., 4B8 | Side-B I/O terminals | Connect to remote bus (e.g., memory or peripheral side); standard CMOS I/O, no bus-hold |
| VCC (12×) | Power supply | Distributed power balls minimize IR drop and switching noise across 32-bit interface |
| GND (24×) | Ground | Multiple ground balls ensure low-inductance return paths for high-speed edge transitions |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bus-hold on all A-side inputs | Eliminates need for 32 external pull-up/down resistors, reducing BOM count and board area in space-constrained modules |
| Rail-to-rail output swing | Maximizes noise margin in noisy industrial environments where VCC tolerance may reach ±0.3V |
| Hysteresis on all inputs | Provides 100 mV noise rejection threshold, critical for reliable operation on long parallel buses subject to crosstalk |
| Four independent 8-bit control sections | Enables selective isolation of subsystems (e.g., disable memory bus while keeping debug port active) without full bus shutdown |
| Low static power consumption | ICCL ≤ 40 μA - suitable for always-on control logic in battery-backed or energy-sensitive applications |
Applications
| Industrial PLC Backplane Interface | Embedded CPU-to-FPGA Bridge |
|---|---|
Use Scenario: Interfacing a 32-bit microcontroller bus to modular I/O expansion slots in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting and signal conditioning transceiver with bus-hold preventing spurious resets during hot-swap insertion. Use Value: Eliminates 32 pull resistors per slot, reduces thermal load via 0.4 μW static power, and ensures deterministic startup with hysteresis-stabilized inputs. | Use Scenario: Connecting an ARM-based SoC's AXI-lite or AHB bus to a Xilinx Artix FPGA implementing custom peripherals. IC Role / Device Role / Timing Role: Synchronizing asynchronous clock domains while providing ±24mA drive for FPGA I/O banks operating at 3.3V. Use Value: Enables sub-3 ns propagation delay matching FPGA setup/hold windows and 500 ps skew control for clean 32-bit parallel capture. |
| High-Density Memory Subsystem Buffer | Legacy ISA Bus Extender |
Use Scenario: Isolating and driving multiple DDR2/DDR3 memory controller address/control lines to separate DIMM slots. IC Role / Device Role / Timing Role: Active 3-state buffer with directional control, allowing dynamic routing of command/address signals to selected memory banks. Use Value: ±24mA drive sustains signal integrity over 8-inch PCB traces; bus-hold prevents floating states during memory refresh cycles. | Use Scenario: Adapting modern 3.3V logic to legacy 5V ISA bus peripherals using voltage translation and timing compensation. IC Role / Device Role / Timing Role: Level-tolerant transceiver supporting 2.5V–3.6V VCC range, used with external resistive dividers for 5V-tolerant inputs. Use Value: Industrial temp rating (–40°C to +85°C) and >2000V HBM ESD ensure reliability in aging industrial PC chassis with poor grounding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH32245GR | Same function, 96-pin LFBGA, but TI-manufactured; bus-hold only on A-side; identical DC/AC specs | No functional difference in bus-hold or timing behavior; pinout matches 74ALVCH32245BFG exactly | Drop-in replacement if TI sourcing preferred; same layout, same test firmware, same qualification level |
| 74LVC32245ABQ | NXP variant in 96-ball HVQFN; lacks bus-hold; lower drive (±24mA still supported); VCC min = 1.65V | Requires external pull resistors on A-side; suitable for ultra-low-voltage systems but not direct bus-hold replacement | Select when 1.65V–3.6V universal VCC support is required and bus-hold is handled elsewhere in design |
Compared with SN74ALVCH32245GR and 74LVC32245ABQ, the 74ALVCH32245BFG uniquely combines industrial temperature rating, integrated bus-hold on all A-side inputs, and guaranteed <500 ps output skew - making it optimal for deterministic, maintenance-free 32-bit interconnects in harsh environments.
Availability
74ALVCH32245BFG is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded CPU-to-FPGA bridges, and high-density memory subsystems requiring stable component supply across extended temperature and voltage ranges.
Supply support for 74ALVCH32245BFG 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The 74ALVCH32245BFG belongs to Renesas' legacy ALVCH logic family, originally developed by IDT to address high-speed, low-power, noise-immune 32-bit bus interfacing in industrial and computing systems.
FAQ
What is the operating temperature range for the 74ALVCH32245BFG?
The 74ALVCH32245BFG is rated for industrial temperature operation from –40°C to +85°C. This specification is validated across all electrical parameters including propagation delay, output drive, and bus-hold functionality. The device maintains full compliance with its datasheet limits throughout this range, making it suitable for deployment in uncontrolled industrial enclosures, outdoor control cabinets, and factory-floor automation equipment where ambient temperatures fluctuate widely.
Does the 74ALVCH32245BFG support 2.5V operation?
Yes, the 74ALVCH32245BFG supports 2.5V ±0.2V operation as specified in its DC electrical characteristics table. At VCC = 2.5V, it delivers full functionality including ±24mA output drive, bus-hold retention, and hysteresis-enabled noise immunity. Propagation delay increases slightly (typical tPLH = 3.7 ns), but remains within system timing budgets for most 32-bit parallel interfaces operating below 200 MHz.
Which pins on the 74ALVCH32245BFG have bus-hold functionality?
Only the A-side I/O pins (1A1 through 4A8, total 32 pins) feature integrated bus-hold circuitry on the 74ALVCH32245BFG. The B-side pins (1B1 through 4B8) are standard CMOS I/O without bus-hold. This asymmetric design allows the local bus (typically CPU or controller side) to retain state during idle or reset, while the remote bus (e.g., memory or peripheral side) remains externally controlled - a deliberate architecture choice confirmed in the "Pin Description" and "Bus-Hold Characteristics" sections of the datasheet.
What is the maximum output skew specification for the 74ALVCH32245BFG?
The maximum output skew (tSK(o)) for the 74ALVCH32245BFG is 500 ps, measured between any two outputs switching in the same direction under identical load conditions. This value is guaranteed across the full industrial temperature range and supply voltage window (2.7V–3.6V). It reflects worst-case variation due to process, voltage, and temperature (PVT), and is critical for ensuring simultaneous valid data sampling across all 32 bits in synchronous bus architectures.
Can the 74ALVCH32245BFG be used as a level translator between 3.3V and 5V systems?
No, the 74ALVCH32245BFG is not a 5V-tolerant device and must not be directly connected to 5V signals. Its absolute maximum terminal voltage is VCC + 0.5V (≤4.1V at VCC = 3.6V), and inputs exceed VIH/VIL thresholds beyond that. For 3.3V-to-5V translation, external passive or active level-shifting circuitry is required. The device's design intent is strictly for 3.3V/2.5V bidirectional buffering within compatible voltage domains, as stated in its "3.3V CMOS" designation and DC input voltage limits.
74ALVCH32245BFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74ALVCH
- Package/Case:
- 96-LFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 96-CABGA (13.5x5.5)
74ALVCH32245BFG FAQ
1.How can I place an order for 74ALVCH32245BFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH32245BFG 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 74ALVCH32245BFG reliable?
The price and inventory of 74ALVCH32245BFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH32245BFG is usually 5 days.
3.What payment methods are accepted for 74ALVCH32245BFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH32245BFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH32245BFG?
74ALVCH32245BFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH32245BFG 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 74ALVCH32245BFG?
For technical support, including 74ALVCH32245BFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH32245BFG requirements.
6.How does Aetrix verify that 74ALVCH32245BFG is sourced from the original manufacturer or authorized distributors?
All 74ALVCH32245BFG 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 74ALVCH32245BFG meets industry standards.
7.What is the process for return or replacement of 74ALVCH32245BFG?
All 74ALVCH32245BFG units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH32245BFG, 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 74ALVCH32245BFG part is unused and in its original packaging.
Return procedure for 74ALVCH32245BFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVCH32245BFG 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…
