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

Renesas 7024L20JGI8

Name: 7024L20JGI8
Brand: Renesas
SKU: 7024L20JGI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7024L20JGI8

Manufacturer:: Renesas

Category:: Memory

Package:: 84-LCC (J-Lead)

Datasheet:: 7024L20JGI8.pdf

Description:: IC SRAM 64KBIT PARALLEL 84PLCC

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Product details

Overview

7024L20JGI8 from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 20 ns max access time (industrial grade), 1 mW typical standby power, and full on-chip semaphore arbitration logic-designed for real-time inter-processor communication in embedded control systems requiring simultaneous read/write access to shared memory.

For engineers reviewing the 7024L20JGI8 datasheet, 7024L20JGI8 pinout, 7024L20JGI8 application, or 7024L20JGI8 equivalent, this page delivers verified package mapping (84-pin PLCC), confirmed dual-port timing behavior, battery-backed data retention at 2 V, and validated Master/Slave cascading support for 32-bit+ bus expansion without external logic.

Technical Context

The 7024L20JGI8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port, enabling concurrent reads or writes-including simultaneous reads of the same memory location. Its on-chip arbitration logic resolves port contention via BUSY flag signaling and supports both Master (BUSY output) and Slave (BUSY input) configurations using the M/S pin.

It integrates full hardware semaphore support across eight flags (addressed by A0–A2), with dedicated SEM, INT, and BUSY signals for inter-processor synchronization. The device operates from a single 5 V ±10% TTL-compatible supply and retains data down to 2 V in battery backup mode-critical for fail-safe state preservation during power loss.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	4,096 × 16 bits (64 Kbit), true dual-port SRAM with independent left/right address/data/control paths
Access Time (max)	20 ns - guarantees deterministic latency for real-time interrupt handlers and DSP co-processors
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5 V TTL logic families without level-shifting
Standby Current (typ)	1 mA - enables ultra-low-power hold mode during processor sleep in battery-operated systems
Data Retention Voltage	2.0 V - preserves memory contents during brown-out or backup battery operation
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded applications including motor drives and PLCs
Package	84-pin PLCC (PLG84) - surface-mountable, rework-friendly, and RoHS-compliant ceramic package

Pinout & Package

7024L20JGI8 is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC, package code PLG84), measuring approximately 1.15 in × 1.15 in × 0.17 in. The package features gull-wing leads, internal heat spreader, and is rated for industrial temperature operation.

Pin/Terminal	Circuit Role	Design Meaning
A0L–A11L	Left Port Address Inputs	12-bit address bus for left-side memory access; supports full 4K address space
A0R–A11R	Right Port Address Inputs	Independent 12-bit address bus for right-side access; enables true parallel addressing
I/O0L–I/O15L	Left Port Bidirectional Data	16-bit data path; upper/lower byte selectable via UBL/LBL for multiplexed bus compatibility
I/O0R–I/O15R	Right Port Bidirectional Data	Independent 16-bit data path; supports simultaneous read/write between ports
CEL / CER	Chip Enable (Left/Right)	Active-low enables respective port; allows selective port power-down to reduce dynamic current
R/WL / R/WR	Read/Write Control (Left/Right)	Determines direction of data transfer per port; asynchronous with no clock required
OEL / OER	Output Enable (Left/Right)	Tri-states outputs independently-enables shared bus architectures without external buffers
UBL / UBR, LBL / LBR	Upper/Lower Byte Select	Enables byte-level write granularity; critical for mixed-width peripheral interfacing
SEML / SEMR	Semaphore Enable	Activates hardware semaphore register access (8 flags, addressed by A0–A2)
INTL / INTR	Interrupt Flag Output	Open-drain push-pull output signals semaphore or arbitration events to host processors
BUSYL / BUSYR	Busy Flag (Master/Slave)	When M/S = H: BUSYR outputs contention status; when M/S = L: BUSYL accepts BUSY input
M/S	Master/Slave Select	Configures device role in cascaded systems-enables seamless 32-bit+ word expansion
VCC / GND	Power / Ground	Multiple VCC/GND pins distributed for low-noise operation and EMI reduction

Key Features

Feature	Design Value
True Dual-Port Memory Cells	Enables simultaneous read access to identical addresses-eliminates arbitration delays in lock-free buffer sharing
On-Chip Semaphore Logic	Eight hardware-managed flags (A0–A2 addressable) provide atomic resource locking without software overhead
Master/Slave Cascading Support	Single M/S pin configures device as master (BUSY output) or slave (BUSY input) for error-free 32-bit+ bus expansion
Battery Backup Data Retention	Retains valid data at 2 V supply-supports graceful shutdown and state recovery in power-critical systems
Full Asynchronous Operation	No clocks required; all timing defined by setup/hold and access parameters-simplifies timing closure in mixed-signal designs
Industrial Temperature Range	−40°C to +85°C operation validated per JEDEC JESD22-A108-suitable for factory automation and transportation electronics

Applications

Industrial PLC Communication Buffer	DSP-FPGA Shared Memory Interface
Use Scenario: Real-time exchange of motion control commands and sensor feedback between PLC CPU and I/O modules. IC Role / Device Role / Timing Role: Dual-port SRAM acts as a non-blocking shared buffer; left port connects to CPU bus, right port to fieldbus controller. Use Value: 20 ns access ensures sub-microsecond response to encoder interrupts; built-in BUSY arbitration prevents data corruption during concurrent access.	Use Scenario: High-throughput streaming of FFT coefficients and filter taps between FPGA-accelerated signal processing and DSP-based control loop. IC Role / Device Role / Timing Role: Acts as zero-wait-state memory bridge-FPGA writes processed data while DSP reads next frame. Use Value: True dual-port architecture eliminates pipeline stalls; 16-bit width matches native DSP data path, avoiding byte packing overhead.
Redundant Controller State Storage	Avionics Cross-Channel Data Exchange
Use Scenario: Maintaining synchronized operational state between primary and backup flight control computers during hot-switchover. IC Role / Device Role / Timing Role: Stores critical flight parameters (attitude, airspeed, control surface positions) accessible by both controllers. Use Value: 2 V data retention preserves state during brief power interruption; hardware semaphores ensure atomic update of shared variables.	Use Scenario: Secure, deterministic exchange of health monitoring data between redundant avionics channels (e.g., ADCS and EPS). IC Role / Device Role / Timing Role: Provides isolated, contention-managed memory zone for cross-channel telemetry and command handshaking. Use Value: BUSY flag signaling enforces strict access ordering; industrial temp rating supports extended operation in unpressurized bays.

Industrial PLC Communication Buffer

DSP-FPGA Shared Memory Interface

Use Scenario: Real-time exchange of motion control commands and sensor feedback between PLC CPU and I/O modules.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as a non-blocking shared buffer; left port connects to CPU bus, right port to fieldbus controller.

Use Value: 20 ns access ensures sub-microsecond response to encoder interrupts; built-in BUSY arbitration prevents data corruption during concurrent access.

Use Scenario: High-throughput streaming of FFT coefficients and filter taps between FPGA-accelerated signal processing and DSP-based control loop.

IC Role / Device Role / Timing Role: Acts as zero-wait-state memory bridge-FPGA writes processed data while DSP reads next frame.

Use Value: True dual-port architecture eliminates pipeline stalls; 16-bit width matches native DSP data path, avoiding byte packing overhead.

Redundant Controller State Storage

Avionics Cross-Channel Data Exchange

Use Scenario: Maintaining synchronized operational state between primary and backup flight control computers during hot-switchover.

IC Role / Device Role / Timing Role: Stores critical flight parameters (attitude, airspeed, control surface positions) accessible by both controllers.

Use Value: 2 V data retention preserves state during brief power interruption; hardware semaphores ensure atomic update of shared variables.

Use Scenario: Secure, deterministic exchange of health monitoring data between redundant avionics channels (e.g., ADCS and EPS).

IC Role / Device Role / Timing Role: Provides isolated, contention-managed memory zone for cross-channel telemetry and command handshaking.

Use Value: BUSY flag signaling enforces strict access ordering; industrial temp rating supports extended operation in unpressurized bays.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C1354V25-20AXI	256K × 16 organization, 20 ns access, 3.3 V core (with 5 V tolerant I/O), TQFP-100 package	Higher density and lower voltage-suited for newer 3.3 V system designs but requires level translation in legacy 5 V buses	Select when migrating to 3.3 V platforms or requiring >64 Kbit capacity; not drop-in compatible due to voltage and pinout mismatch
IDT70V24L20PFI	Same 4K × 16 organization and 20 ns speed, but fabricated in 3.3 V LVDS-compatible process; PQFP-100 package	Lower active power (≈400 mW vs. 750 mW), improved noise immunity-optimized for high-speed digital systems with tight EMI budgets	Prefer for new designs prioritizing power efficiency and signal integrity; requires PCB redesign due to different footprint and thermal pad

Compared with CY7C1354V25-20AXI and IDT70V24L20PFI, the 7024L20JGI8 offers direct 5 V TTL compatibility, proven industrial reliability in PLCC packaging, and seamless integration into legacy dual-processor architectures without voltage translation or layout changes.

Availability

7024L20JGI8 is available at Aetrix Electronics and suitable for industrial automation, aerospace data buffering, and embedded control systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for 7024L20JGI8 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

IDT (Integrated Device Technology) is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions, acquired by Renesas Electronics in 2019 to strengthen its analog and embedded portfolio.

The IDT7024 family was engineered specifically for deterministic inter-processor communication in real-time embedded systems-delivering hardware-enforced arbitration, battery-backed retention, and seamless bus expansion for mission-critical control applications.

FAQ

What is the maximum operating temperature range for the 7024L20JGI8?

The 7024L20JGI8 is rated for industrial temperature operation from −40°C to +85°C, as confirmed in the Absolute Maximum Ratings table and validated across AC/DC electrical specifications. This range supports deployment in harsh environments such as factory floors, transportation systems, and outdoor industrial enclosures without derating.

Does the 7024L20JGI8 support battery backup operation, and at what voltage?

Yes, the 7024L20JGI8 supports battery backup data retention at VCC = 2.0 V, with guaranteed retention current ≤4000 µA (military/industrial) and ≤1500 µA (commercial). This capability is exclusive to the "L" (low-power) variant and enables reliable state preservation during main power failure.

How does the Master/Slave (M/S) pin function in the 7024L20JGI8?

When M/S = HIGH, the 7024L20JGI8 operates as a Master: BUSYR becomes an output flag indicating port contention. When M/S = LOW, it operates as a Slave: BUSYL functions as an input to accept BUSY signals from a Master device-enabling hierarchical arbitration in multi-device dual-port memory systems.

Can the 7024L20JGI8 perform simultaneous reads from both ports to the same memory address?

Yes, the 7024L20JGI8 uses true dual-port SRAM cells that allow concurrent read operations from both left and right ports to identical addresses without conflict or timing penalty-confirmed in the Functional Block Diagram and Features section of the datasheet.

What package type is used for the 7024L20JGI8, and is it RoHS compliant?

The 7024L20JGI8 is packaged in an 84-pin Plastic Leaded Chip Carrier (PLCC), designated PLG84 in IDT documentation. It is RoHS-compliant and meets lead-free soldering requirements per JEDEC J-STD-020, with a body size of approximately 1.15 in × 1.15 in × 0.17 in.

7024L20JGI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 84-LCC (J-Lead)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Asynchronous

Memory Size:: 64Kbit

Memory Organization:: 4K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 20ns

Access Time:: 20 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 84-PLCC (29.31x29.31)

7024L20JGI8 FAQ

1.How can I place an order for 7024L20JGI8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7024L20JGI8 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 7024L20JGI8 reliable?

The price and inventory of 7024L20JGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024L20JGI8 is usually 5 days.

3.What payment methods are accepted for 7024L20JGI8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024L20JGI8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7024L20JGI8?

7024L20JGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7024L20JGI8 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 7024L20JGI8?

For technical support, including 7024L20JGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024L20JGI8 requirements.

6.How does Aetrix verify that 7024L20JGI8 is sourced from the original manufacturer or authorized distributors?

All 7024L20JGI8 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 7024L20JGI8 meets industry standards.

7.What is the process for return or replacement of 7024L20JGI8?

All 7024L20JGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7024L20JGI8, 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 7024L20JGI8 part is unused and in its original packaging.

Return procedure for 7024L20JGI8:

1.Submit a request within 90 days.

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

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