Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > FIFOs Memory

Renesas 72V231L10PFG

Name: 72V231L10PFG
Brand: Renesas
SKU: 72V231L10PFG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 72V231L10PFG

Manufacturer:: Renesas

Category:: FIFOs Memory

Package:: 32-LQFP

Datasheet:: 72V231L10PFG.pdf

Description:: IC FIFO SYNC 2KX9 6.5NS 32TQFP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,848

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IDT72V231L10PFG from Integrated Device Technology (IDT) is a 3.3 V CMOS Synchronous FIFO memory with 2,048 × 9-bit depth, supporting dual-clock (asynchronous) or single-clock operation, 10 ns read/write cycle time, and programmable Almost-Empty/Almost-Full flags - used for buffering data in interprocessor communication and local area network interfaces.

For engineers reviewing the IDT72V231L10PFG datasheet, IDT72V231L10PFG pinout, IDT72V231L10PFG application, or IDT72V231L10PFG equivalent, key selection criteria include its 2,048-word depth, 9-bit parallel I/O, industrial temperature range (–40°C to +85°C), TQFP-32 package, and support for programmable flag offsets via WEN2/LD control.

Technical Context

This device implements a zero fall-through time, dual-ported synchronous FIFO architecture with independent read and write clocks (RCLK/WCLK), synchronized Empty (EF) and Full (FF) flags, and two programmable status flags (PAE/PAF) that default to Empty+7 and Full−7. All flags are edge-synchronized to their respective clock domains.

The IDT72V231L10PFG supports configuration for either two write enables (WEN1/WEN2) or programmable flag offset loading (via WEN2/LD pin behavior at reset), with internal offset registers accessible through dedicated write/read sequences on D0–D8 and Q0–Q8 buses.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Depth	2,048 × 9-bit words - provides sufficient buffering for burst-mode data transfers between mismatched-speed subsystems.
Cycle Time	10 ns - enables up to 100 MHz clock operation, suitable for high-throughput digital interfaces.
Supply Voltage	3.0 V to 3.6 V - compatible with modern 3.3 V logic systems and tolerant of 5 V inputs on control/data pins.
Operating Temperature	–40°C to +85°C - qualified for industrial environments without derating.
Flag Synchronization	EF/PAE synchronized to RCLK; FF/PAF synchronized to WCLK - ensures deterministic timing for status-driven control logic.
Programmable Offsets	Configurable PAE/PAF thresholds via 8-bit LSB/MSB registers - allows dynamic tuning of buffer watermarking without hardware changes.
Package	32-pin TQFP (PF suffix) - surface-mount footprint with 0.8 mm pitch, optimized for automated assembly and thermal performance.

Pinout & Package

Package: 32-pin plastic Thin Quad FlatPack (TQFP), 7 mm × 7 mm body, 0.8 mm lead pitch, JEDEC MO-220 standard (order code PF).

Pin/Terminal	Circuit Role	Design Meaning
RS	Asynchronous Reset Input	Active-low global reset that initializes pointers, sets FF/PAF HIGH and EF/PAE LOW, and loads default offset values (007H).
WCLK, RCLK	Write/Read Clock Inputs	Independent edge-triggered clocks enabling asynchronous dual-clock FIFO operation; each controls its own pointer and flag domain.
WEN1, WEN2/LD	Write Enable / Load Control	At reset, WEN2/LD polarity determines mode: HIGH = second write enable; LOW = offset register load/control pin for PAE/PAF programming.
D0–D8, Q0–Q8	9-bit Parallel Data Bus	Separate input/output ports allow concurrent read/write without bus contention; OE controls output tri-state.
REN1, REN2	Read Enable Inputs	Both must be LOW to enable data transfer from RAM to output register on RCLK rising edge; either HIGH holds output latch.
EF, FF, PAE, PAF	Status Flag Outputs	Open-drain-compatible outputs indicating FIFO state; EF/PAE referenced to RCLK, FF/PAF to WCLK for precise timing alignment.
OE	Output Enable	Active-low control of Q0–Q8 bus impedance - HIGH places outputs in high-Z, enabling shared-bus applications.

Key Features

Feature	Design Value
Dual-clock asynchronous operation	Enables seamless bridging between independent clock domains (e.g., CPU ↔ peripheral) without metastability risk in flag logic.
Programmable Almost-Empty/Full flags	Allows runtime adjustment of buffer watermarks via 4×8-bit offset registers - eliminates fixed-threshold design constraints.
Zero fall-through time architecture	Guarantees no data loss during simultaneous read/write at full depth - critical for real-time streaming applications.
5 V-tolerant inputs	Accepts 5 V logic signals directly on all control and data pins while operating from 3.3 V supply - simplifies mixed-voltage system integration.
Industrial temperature qualification	Validated across –40°C to +85°C with no derating - supports deployment in harsh environments including factory automation and telecom infrastructure.

Applications

Interprocessor Communication	Network Interface Buffering
Use Scenario: Two microcontrollers exchange command/status packets over a shared parallel bus with mismatched processing speeds. IC Role / Device Role / Timing Role: IDT72V231L10PFG acts as a decoupling FIFO, absorbing write bursts from the faster processor and feeding reads to the slower one using independent RCLK/WCLK domains. Use Value: Prevents data loss during peak traffic by providing 2,048-word depth and deterministic flag timing - eliminates software polling overhead.	Use Scenario: Ethernet MAC layer buffers incoming frame payloads before DMA transfer to host memory. IC Role / Device Role / Timing Role: IDT72V231L10PFG serves as a 9-bit-wide first-stage packet buffer, accepting data at PHY clock rate and releasing it at system bus clock rate. Use Value: 10 ns cycle time supports 100 Mbps+ throughput; programmable PAF triggers early DMA request before overflow.
Graphics Controller Interface	Industrial PLC Data Acquisition
Use Scenario: FPGA-based display controller streams pixel data to an external frame buffer IC with variable latency. IC Role / Device Role / Timing Role: IDT72V231L10PFG isolates the pixel pipeline clock (WCLK) from the frame buffer interface clock (RCLK), managing jitter and skew. Use Value: Synchronized EF/FF flags ensure glitch-free handshaking; 9-bit width matches common RGB565 pixel bus configurations.	Use Scenario: Programmable Logic Controller collects analog sensor samples via ADC and forwards batches to a serial communication module. IC Role / Device Role / Timing Role: IDT72V231L10PFG buffers sampled data at ADC clock rate and releases it in blocks synchronized to UART transmit timing. Use Value: Industrial temperature rating ensures reliability in uncontrolled cabinet environments; PAE flag triggers batch transmission at configurable fill level.

Interprocessor Communication

Network Interface Buffering

Use Scenario: Two microcontrollers exchange command/status packets over a shared parallel bus with mismatched processing speeds.

IC Role / Device Role / Timing Role: IDT72V231L10PFG acts as a decoupling FIFO, absorbing write bursts from the faster processor and feeding reads to the slower one using independent RCLK/WCLK domains.

Use Value: Prevents data loss during peak traffic by providing 2,048-word depth and deterministic flag timing - eliminates software polling overhead.

Use Scenario: Ethernet MAC layer buffers incoming frame payloads before DMA transfer to host memory.

IC Role / Device Role / Timing Role: IDT72V231L10PFG serves as a 9-bit-wide first-stage packet buffer, accepting data at PHY clock rate and releasing it at system bus clock rate.

Use Value: 10 ns cycle time supports 100 Mbps+ throughput; programmable PAF triggers early DMA request before overflow.

Graphics Controller Interface

Industrial PLC Data Acquisition

Use Scenario: FPGA-based display controller streams pixel data to an external frame buffer IC with variable latency.

IC Role / Device Role / Timing Role: IDT72V231L10PFG isolates the pixel pipeline clock (WCLK) from the frame buffer interface clock (RCLK), managing jitter and skew.

Use Value: Synchronized EF/FF flags ensure glitch-free handshaking; 9-bit width matches common RGB565 pixel bus configurations.

Use Scenario: Programmable Logic Controller collects analog sensor samples via ADC and forwards batches to a serial communication module.

IC Role / Device Role / Timing Role: IDT72V231L10PFG buffers sampled data at ADC clock rate and releases it in blocks synchronized to UART transmit timing.

Use Value: Industrial temperature rating ensures reliability in uncontrolled cabinet environments; PAE flag triggers batch transmission at configurable fill level.

Equivalent & Alternatives

The following parts are listed as comparable options for similar FIFO memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NB3N502DG	2,048 × 9-bit, 3.3 V, but only offers fixed EF/FF flags - no programmable PAE/PAF capability.	Lacks runtime watermark adjustment; requires external logic for advanced flow control.	Select when simpler flag logic suffices and cost is prioritized over configurability.
Renesas 72V231L10TFG8	Functionally identical pinout and timing, same 2,048 × 9-bit depth and 10 ns cycle, but offered in RoHS-compliant green TQFP-32 (same PF footprint).	Drop-in replacement with identical electrical and mechanical specs; differs only in environmental compliance labeling.	Choose for new designs requiring current RoHS/REACH compliance without layout change.

Compared with NB3N502DG, IDT72V231L10PFG delivers programmable flag flexibility essential for adaptive buffering; versus Renesas 72V231L10TFG8, it shares full functional equivalence but reflects legacy IDT branding and documentation lineage.

Availability

IDT72V231L10PFG is available at Aetrix Electronics and suitable for interprocessor communication, network interface buffering, graphics controller interfaces, and industrial PLC data acquisition requiring stable component supply across extended temperature ranges.

Supply support for IDT72V231L10PFG 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

Integrated Device Technology, Inc. (IDT) was a fabless semiconductor company specializing in timing, memory interface, RF, and power management solutions before its acquisition by Renesas Electronics in 2019.

IDT72V231L10PFG belongs to the SyncFIFO™ family, designed specifically for high-speed, low-latency data buffering in mixed-clock-domain systems such as communications infrastructure and real-time embedded control.

FAQ

What is the memory organization of the IDT72V231L10PFG?

IDT72V231L10PFG features a 2,048 × 9-bit synchronous FIFO memory array - meaning it stores 2,048 words, each 9 bits wide. This organization supports parallel data paths common in industrial and communications interfaces, and is distinct from the 256×9 (IDT72V201), 512×9 (IDT72V211), and 1,024×9 (IDT72V221) variants in the same family.

Does the IDT72V231L10PFG support both single-clock and dual-clock operation?

Yes, the IDT72V231L10PFG supports both modes: RCLK and WCLK can be tied together for single-clock operation, or run independently for true asynchronous dual-clock buffering. The EF and FF flags remain synchronized to their respective clocks regardless of mode - ensuring reliable status reporting in either configuration.

How are the programmable Almost-Empty and Almost-Full flags configured on the IDT72V231L10PFG?

The IDT72V231L10PFG uses the WEN2/LD pin to enter offset register programming mode at reset. Once configured, four 8-bit registers (Empty LSB/MSB, Full LSB/MSB) are loaded sequentially via WCLK edges. Default values are 007H for both Empty and Full offsets, yielding PAE = Empty+7 and PAF = Full−7.

What package type is used for the IDT72V231L10PFG?

IDT72V231L10PFG is packaged in a 32-pin plastic Thin Quad FlatPack (TQFP) with 7 mm × 7 mm body and 0.8 mm lead pitch, designated by the "PFG" suffix. It is pin-compatible with the PLCC-32 variant (J suffix) but differs mechanically and thermally - PCB layout must match the TQFP footprint.

Is the IDT72V231L10PFG suitable for industrial temperature operation?

Yes, the IDT72V231L10PFG is fully specified and tested for industrial temperature operation from –40°C to +85°C. Its DC and AC electrical characteristics, including 10 ns cycle time and flag timing parameters, are guaranteed across this full range - making it appropriate for factory automation, transportation, and outdoor infrastructure applications.

72V231L10PFG Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: 72V

Package/Case:: 32-LQFP

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Memory Size:: 18K (2K x 9)

Function:: Synchronous

Data Rate:: 100MHz

Access Time:: 6.5ns

Voltage - Supply:: 3 V ~ 3.6 V

Current - Supply (Max):: 20mA

Bus Directional:: Uni-Directional

Expansion Type:: Depth, Width

Programmable Flags Support:: Yes

Retransmit Capability:: No

FWFT Support:: No

Operating Temperature:: 0°C ~ 70°C

Mounting Type:: Surface Mount

Supplier Device Package:: 32-TQFP (7x7)

72V231L10PFG FAQ

1.How can I place an order for 72V231L10PFG through Aetrix?

Please submit a Request for Quotation (RFQ) for 72V231L10PFG 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 72V231L10PFG reliable?

The price and inventory of 72V231L10PFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 72V231L10PFG is usually 5 days.

3.What payment methods are accepted for 72V231L10PFG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 72V231L10PFG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 72V231L10PFG?

72V231L10PFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 72V231L10PFG 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 72V231L10PFG?

For technical support, including 72V231L10PFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 72V231L10PFG requirements.

6.How does Aetrix verify that 72V231L10PFG is sourced from the original manufacturer or authorized distributors?

All 72V231L10PFG 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 72V231L10PFG meets industry standards.

7.What is the process for return or replacement of 72V231L10PFG?

All 72V231L10PFG units undergo pre-shipment inspection (PSI). If there is an issue with 72V231L10PFG, 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 72V231L10PFG part is unused and in its original packaging.

Return procedure for 72V231L10PFG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…