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 7205L15JGI8

Name: 7205L15JGI8
Brand: Renesas
SKU: 7205L15JGI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 7205L15JGI8

Manufacturer:: Renesas

Category:: FIFOs Memory

Package:: 32-LCC (J-Lead)

Datasheet:: 7205L15JGI8.pdf

Description:: IC FIFO ASYNC 8KX9 15NS 32PLCC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,501

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

Product details

Overview

IDT7205L15JGI8 from Integrated Device Technology is an 8,192 × 9-bit asynchronous CMOS FIFO buffer with 15 ns access time, industrial temperature range (–40°C to +85°C), and PLCC-32 package. It provides dual-port, first-in/first-out data buffering with Empty, Full, and Half-Full status flags, supporting rate-matching in serial communication interfaces between mismatched clock domains.

For engineers reviewing the IDT7205L15JGI8 datasheet, IDT7205L15JGI8 pinout, IDT7205L15JGI8 application, or IDT7205L15JGI8 equivalent, key selection considerations include its 15 ns access time, 9-bit data width with parity/control bit flexibility, retransmit capability for data replay, simultaneous asynchronous read/write operation, and compatibility within the IDT720x family for depth/width expansion.

Technical Context

The IDT7205L15JGI8 implements a fully asynchronous dual-port architecture with independent read and write pointers managed by internal logic. It uses discrete status flag outputs (EF, FF, XO/HF) to signal buffer state without requiring external control logic.

Its retransmit function resets the read pointer to the first location on a low pulse to FL/RT while preserving the write pointer - enabling deterministic data replay in protocol recovery or debugging scenarios. The device supports single-device, depth-expansion, and width-expansion modes via XI/XO and FL/RT pin configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Depth × Width	8,192 × 9 bits - provides 73,728-bit buffer capacity for burst-mode data staging between subsystems.
Access Time (t_A)	15 ns max - enables reliable operation at up to ~33 MHz shift frequency in high-speed interface bridging.
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic families and legacy industrial power rails.
Operating Temperature	–40°C to +85°C - qualified for industrial environments including factory automation and motor control systems.
Power Consumption	Active: ≤120 mA (660 mW max); Power-down: ≤8 mA (44 mW max) - supports low-duty-cycle buffering with rapid wake-up.
Status Flags	EF (Empty), FF (Full), XO/HF (Expansion Out / Half-Full) - hardware-signaled boundary conditions eliminate software polling overhead.
Retransmit Pulse Width	15 ns min - ensures robust triggering of read pointer reset without requiring precise timing margins from controller.

Pinout & Package

Package: 32-lead Plastic Leaded Chip Carrier (PLCC), JEDEC standard J32-1 footprint, surface-mount compatible with industrial reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
D0–D8	Data Inputs	9-bit parallel input bus; D0–D7 carry data, D8 optionally used for parity or control signaling.
Q0–Q8	Data Outputs	Three-state outputs active only when R = LOW; high-impedance otherwise to support bus sharing.
W	Write Enable	Falling-edge triggered write strobe; initiates storage of D0–D8 into next FIFO location if FF = HIGH.
R	Read Enable	Falling-edge triggered read strobe; outputs Q0–Q8 from current read pointer location if EF = HIGH.
RS	Reset	Active-LOW synchronous reset that sets both read and write pointers to address zero.
FL/RT	First Load / Retransmit	Dual-function: LOW pulse resets read pointer to start (retransmit); HIGH enables depth expansion mode.
XI	Expansion In	Grounded in single-device mode; tied to XO of prior device in depth-expansion daisy chain.
XO/HF	Expansion Out / Half-Full Flag	In single-device mode: HF = LOW when ≥50% full; in expansion mode: pulse signals end-of-buffer to next device.
EF	Empty Flag	Open-drain output LOW when read pointer = write pointer - prevents invalid reads.
FF	Full Flag	Open-drain output LOW when write pointer wraps to read pointer - prevents overflow.
V_CC, GND	Power Supply	Single 5 V supply; decoupling required per high-speed CMOS layout guidelines.

Key Features

Feature	Design Value
Asynchronous Read/Write	Independent clocks or control timing on R and W pins eliminates synchronization logic and metastability risk.
Retransmit Capability	Hardware-level read pointer reset via FL/RT enables deterministic replay of buffered data without host CPU intervention.
Expandable Architecture	Supports unlimited depth expansion (daisy-chain) and width expansion (parallel devices) using only XI/XO and FL/RT pins.
Flag-Driven Flow Control	EF/FF status outputs directly drive enable inputs of upstream/downstream logic, enabling autonomous handshaking.
Industrial Temperature Range	Qualified from –40°C to +85°C in PLCC package - suitable for uncontrolled ambient deployments without forced cooling.

Applications

UART Rate Matching	Motor Control Data Buffering
Use Scenario: Bridging UART peripherals operating at different baud rates (e.g., 9600 bps sensor → 115200 bps MCU). IC Role / Device Role / Timing Role: Asynchronous FIFO absorbs transmit/receive bursts and prevents overrun/underrun during clock domain crossing. Use Value: Eliminates software flow control overhead and guarantees lossless data transfer across mismatched serial interfaces.	Use Scenario: Staging position feedback (encoder pulses) and command updates between motion controller and servo drive. IC Role / Device Role / Timing Role: Decouples real-time motion loop timing from variable-latency communication stacks. Use Value: Maintains deterministic jitter-free update intervals despite background communication traffic or interrupt latency.
Legacy Bus Interface Adapter	Protocol Analyzer Capture Buffer
Use Scenario: Interfacing ISA or PC/104 bus peripherals to modern microcontrollers lacking native legacy timing. IC Role / Device Role / Timing Role: Synchronizes slow peripheral handshakes (e.g., /IOR, /IOW) with fast processor memory cycles. Use Value: Enables drop-in replacement of aging controllers without redesigning timing-critical glue logic.	Use Scenario: Capturing CAN or SPI transaction sequences for offline protocol validation and fault injection testing. IC Role / Device Role / Timing Role: High-speed, non-blocking capture buffer accepting continuous streams until trigger condition met. Use Value: Supports sustained 33 MHz data capture (via t_A = 15 ns) with hardware-triggered stop and retransmit for repeat analysis.

UART Rate Matching

Motor Control Data Buffering

Use Scenario: Bridging UART peripherals operating at different baud rates (e.g., 9600 bps sensor → 115200 bps MCU).

IC Role / Device Role / Timing Role: Asynchronous FIFO absorbs transmit/receive bursts and prevents overrun/underrun during clock domain crossing.

Use Value: Eliminates software flow control overhead and guarantees lossless data transfer across mismatched serial interfaces.

Use Scenario: Staging position feedback (encoder pulses) and command updates between motion controller and servo drive.

IC Role / Device Role / Timing Role: Decouples real-time motion loop timing from variable-latency communication stacks.

Use Value: Maintains deterministic jitter-free update intervals despite background communication traffic or interrupt latency.

Legacy Bus Interface Adapter

Protocol Analyzer Capture Buffer

Use Scenario: Interfacing ISA or PC/104 bus peripherals to modern microcontrollers lacking native legacy timing.

IC Role / Device Role / Timing Role: Synchronizes slow peripheral handshakes (e.g., /IOR, /IOW) with fast processor memory cycles.

Use Value: Enables drop-in replacement of aging controllers without redesigning timing-critical glue logic.

Use Scenario: Capturing CAN or SPI transaction sequences for offline protocol validation and fault injection testing.

IC Role / Device Role / Timing Role: High-speed, non-blocking capture buffer accepting continuous streams until trigger condition met.

Use Value: Supports sustained 33 MHz data capture (via t_A = 15 ns) with hardware-triggered stop and retransmit for repeat analysis.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74V293-15PGG	Same 8K × 9 organization and 15 ns access, but TI's version uses 32-pin TQFP (PGG) instead of PLCC (J); VIH/VIL thresholds differ slightly.	Compatible in functional role but requires PCB layout change due to different footprint and thermal profile.	Select when TQFP assembly infrastructure is preferred and industrial temp qualification is confirmed for specific SN74V293-15PGG variant.
IDT7205L20JGI8	Same PLCC-32 package and industrial temp rating, but 20 ns access time - slower timing, lower power consumption (ICC1 ≤ 100 mA).	Suitable for cost-sensitive or thermally constrained designs where 33 MHz shift frequency is not required.	Choose for reduced EMI and simpler timing margining when system throughput allows ≥20 ns cycle times.

Compared with SN74V293-15PGG and IDT7205L20JGI8, the IDT7205L15JGI8 delivers the fastest access in the PLCC-32 industrial-grade 8K×9 FIFO family, enabling higher throughput in space-constrained legacy-compatible layouts without changing mounting method or thermal management strategy.

Availability

IDT7205L15JGI8 is available at Aetrix Electronics and suitable for UART rate matching, motor control data buffering, and legacy bus interface adapter applications requiring stable component supply across extended product lifecycles.

Supply support for IDT7205L15JGI8 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 (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions.

The IDT720x family was designed specifically for high-reliability, asynchronous data buffering in industrial, military, and communications equipment where deterministic latency and expandable memory depth are critical.

FAQ

What is the maximum operating frequency supported by IDT7205L15JGI8?

IDT7205L15JGI8 does not operate on a clock signal but supports a maximum shift frequency of 33.3 MHz, derived from its 15 ns access time specification. This defines the upper bound for valid read/write strobe toggle rates in asynchronous operation, assuming proper setup/hold timing compliance per AC Electrical Characteristics table.

Does IDT7205L15JGI8 support hot insertion or live swapping?

IDT7205L15JGI8 is not designed for hot insertion. Its DC and AC specifications assume stable V_CC and controlled power-up sequencing. Applying signals before V_CC reaches minimum operating voltage may cause undefined behavior or latch-up. Always follow recommended power-up order: V_CC first, then control/data inputs.

Can IDT7205L15JGI8 be used in depth-expansion mode with mixed speed grades?

No. Depth-expansion mode requires identical access time (t_A) across all devices in the chain. Mixing IDT7205L15JGI8 (15 ns) with slower variants like IDT7205L20JGI8 (20 ns) violates timing closure for XO propagation and flag synchronization, risking data corruption or metastability in boundary conditions.

Is the D8 pin strictly for parity, or can it serve other functions?

D8 is a fully functional data bit - not dedicated to parity. The datasheet notes "a bit for a control or parity at the user's option," meaning D8 may carry application-specific control information (e.g., packet delimiter, channel ID) alongside D0–D7 data, provided system logic interprets it accordingly.

How does the retransmit function interact with the Empty Flag (EF) in IDT7205L15JGI8?

During retransmit (FL/RT pulsed LOW), the read pointer resets to location zero, but EF status reflects the new relative position between read and write pointers. If the FIFO was non-empty pre-retransmit, EF remains HIGH; if write pointer = read pointer post-reset, EF goes LOW immediately. Flag validity is guaranteed after t_RTF (≤25 ns) per AC specs.

7205L15JGI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: 7200

Package/Case:: 32-LCC (J-Lead)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Memory Size:: 72K (8K x 9)

Function:: Asynchronous

Data Rate:: 40MHz

Access Time:: 15ns

Voltage - Supply:: 4.5 V ~ 5.5 V

Current - Supply (Max):: 120mA

Bus Directional:: Uni-Directional

Expansion Type:: Depth, Width

Programmable Flags Support:: No

Retransmit Capability:: Yes

FWFT Support:: No

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Supplier Device Package:: 32-PLCC

7205L15JGI8 FAQ

1.How can I place an order for 7205L15JGI8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7205L15JGI8 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 7205L15JGI8 reliable?

The price and inventory of 7205L15JGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7205L15JGI8 is usually 5 days.

3.What payment methods are accepted for 7205L15JGI8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7205L15JGI8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7205L15JGI8?

7205L15JGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7205L15JGI8 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 7205L15JGI8?

For technical support, including 7205L15JGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7205L15JGI8 requirements.

6.How does Aetrix verify that 7205L15JGI8 is sourced from the original manufacturer or authorized distributors?

All 7205L15JGI8 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 7205L15JGI8 meets industry standards.

7.What is the process for return or replacement of 7205L15JGI8?

All 7205L15JGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7205L15JGI8, 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 7205L15JGI8 part is unused and in its original packaging.

Return procedure for 7205L15JGI8:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

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…