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

Renesas 7024L35G

Name: 7024L35G
Brand: Renesas
SKU: 7024L35G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7024L35G

Manufacturer:: Renesas

Category:: Memory

Package:: 84-BPGA

Datasheet:: 7024L35G.pdf

Description:: IC SRAM 64KBIT PARALLEL 84PGA

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Product details

Overview

7024L35G from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 35 ns max read cycle time (tRC), 2V data retention capability, and full on-chip semaphore arbitration logic-designed for real-time inter-processor communication in embedded control systems.

For engineers reviewing the 7024L35G datasheet, 7024L35G pinout, 7024L35G application, or 7024L35G equivalent, this device supports simultaneous asynchronous access to the same memory location, MASTER/SLAVE cascading for 32-bit+ bus expansion, and battery-backed operation without external circuitry.

Technical Context

The 7024L35G implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, enabling concurrent read/write operations without internal contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag signaling and priority-based semaphore management across eight shared flags addressed by A0–A2.

It features TTL-compatible 5V (±10%) operation, CMOS fabrication for low power, and dedicated SEM/INT/BUSY signals for hardware-coordinated multi-processor synchronization. The L variant delivers 1 µA typical standby current at 5V and retains data down to 2V supply.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	4K × 16 (64 Kbit), true dual-port SRAM with independent left/right address/data/control paths
Max Read Cycle Time	35 ns - guarantees deterministic 28.6 MHz sustained throughput per port in commercial/military applications
Data Retention Voltage	2.0 V - enables seamless battery backup without external voltage supervisors or power switches
Standby Current (ISB3)	0.2 µA typical - allows ultra-low-power hold mode during system sleep states
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded systems with no derating required
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5V TTL logic families and legacy backplane designs
Package Options	100-pin TQFP (PNG100) - surface-mount compatible with automated assembly and thermal performance suitable for dense PCB layouts

Pinout & Package

7024L35G is packaged in a 100-pin Thin Quad Flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, with exposed thermal pad (not electrically connected). Pinout conforms to IDT's PNG100 footprint, supporting full dual-port I/O, semaphore, interrupt, and BUSY signaling across both ports.

Pin/Terminal	Circuit Role	Design Meaning
CEL / CER	Chip Enable (Left / Right)	Independent port activation; deassertion places respective port in ultra-low-power ISB3 mode (0.2 µA)
R/WL / R/WR	Read/Write Control (Left / Right)	Active-low write enable; controls direction of data flow per port without requiring external direction logic
UBL / UBR, LBL / LBR	Upper/Lower Byte Select	Enables byte-level writes to 16-bit bus-critical for multiplexed data path compatibility and partial-word updates
SEML / SEMR	Semaphore Enable	Activates on-chip semaphore register bank (8 flags); enables hardware mutex coordination between processors
BUSYL / BUSYR	Busy Flag (Master Output / Slave Input)	When M/S = H, BUSY is output indicating port contention; when M/S = L, BUSY is input for slave arbitration handshake
INTL / INTR	Interrupt Flag	Open-drain push-pull output signals semaphore state change or arbitration event to host processor interrupt controller

Key Features

Feature	Design Value
True Dual-Port Memory Cells	Enables simultaneous reads from identical addresses on both ports-eliminates need for shadow RAM or software polling in lock-step systems
On-Chip Semaphore Logic	Eight hardware-managed flags accessible via A0–A2; removes requirement for external arbitration ICs or software semaphores
MASTER/SLAVE Cascading	Supports 32-bit+ data bus expansion using M/S pin; ensures full-speed error-free operation without discrete glue logic
Battery Backup Data Retention	Operates down to 2V with 100 µA typical retention current-enables direct connection to coin-cell batteries without regulators
Full Asynchronous Operation	No clock required; timing governed solely by CE/R/W/OE setup/hold-simplifies integration into mixed-signal or legacy synchronous systems

Applications

Industrial PLC Backplane	Aerospace Avionics Cross-Channel Sync
Use Scenario: Two independent CPU modules exchange status, sensor data, and control commands over shared memory in a redundant flight control unit. IC Role / Device Role / Timing Role: 7024L35G serves as the hardware-synchronized inter-processor communication buffer with BUSY-driven arbitration and semaphore-controlled resource locking. Use Value: Eliminates software-based polling delays and race conditions; guarantees sub-35 ns memory access consistency between safety-critical channels.	Use Scenario: Dual-redundant navigation processors share GPS position updates and inertial measurement data in real time. IC Role / Device Role / Timing Role: 7024L35G acts as a fault-tolerant dual-port RAM with independent port timing, enabling lock-step validation and failover handshaking. Use Value: Provides deterministic 35 ns read latency and hardware semaphore support-meeting DO-254 Level A timing assurance requirements.
Medical Imaging Data Pipeline	Test Equipment Pattern Generator
Use Scenario: High-speed image acquisition FPGA writes raw pixel frames while DSP subsystem reads and processes prior frames concurrently. IC Role / Device Role / Timing Role: 7024L35G functions as a zero-latency frame buffer with separate left/right I/O banks and byte-select granularity. Use Value: Enables continuous 16-bit parallel data streaming at >28 MHz without FIFO bottlenecks or external buffering logic.	Use Scenario: Automated test system uses one port to load stimulus patterns and second port to capture response signatures during functional testing. IC Role / Device Role / Timing Role: 7024L35G operates as a reconfigurable pattern memory with independent address control per port and fast 35 ns access. Use Value: Reduces test cycle time by eliminating sequential memory access; supports real-time pattern modification during test execution.

Industrial PLC Backplane

Aerospace Avionics Cross-Channel Sync

Use Scenario: Two independent CPU modules exchange status, sensor data, and control commands over shared memory in a redundant flight control unit.

IC Role / Device Role / Timing Role: 7024L35G serves as the hardware-synchronized inter-processor communication buffer with BUSY-driven arbitration and semaphore-controlled resource locking.

Use Value: Eliminates software-based polling delays and race conditions; guarantees sub-35 ns memory access consistency between safety-critical channels.

Use Scenario: Dual-redundant navigation processors share GPS position updates and inertial measurement data in real time.

IC Role / Device Role / Timing Role: 7024L35G acts as a fault-tolerant dual-port RAM with independent port timing, enabling lock-step validation and failover handshaking.

Use Value: Provides deterministic 35 ns read latency and hardware semaphore support-meeting DO-254 Level A timing assurance requirements.

Medical Imaging Data Pipeline

Test Equipment Pattern Generator

Use Scenario: High-speed image acquisition FPGA writes raw pixel frames while DSP subsystem reads and processes prior frames concurrently.

IC Role / Device Role / Timing Role: 7024L35G functions as a zero-latency frame buffer with separate left/right I/O banks and byte-select granularity.

Use Value: Enables continuous 16-bit parallel data streaming at >28 MHz without FIFO bottlenecks or external buffering logic.

Use Scenario: Automated test system uses one port to load stimulus patterns and second port to capture response signatures during functional testing.

IC Role / Device Role / Timing Role: 7024L35G operates as a reconfigurable pattern memory with independent address control per port and fast 35 ns access.

Use Value: Reduces test cycle time by eliminating sequential memory access; supports real-time pattern modification during test execution.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C133-35JC	35 ns tRC, 4K × 16, but lacks integrated semaphore logic and BUSY arbitration; requires external logic for MASTER/SLAVE coordination	Suitable only where software-managed synchronization suffices; not drop-in for hardware semaphore-dependent firmware	Select when cost sensitivity outweighs need for on-chip arbitration and system-level timing predictability is less critical
AS7C34098B-35TIN	35 ns tRC, 4K × 16, supports 3.3V/5V I/O but no 2V data retention; standby current 5 µA (vs. 0.2 µA for 7024L35G)	Requires external voltage translation and backup power management; unsuitable for battery-retained hold mode	Choose for mixed-voltage systems where 3.3V interface compatibility is mandatory and battery backup is unnecessary

Compared with CY7C133-35JC and AS7C34098B-35TIN, the 7024L35G uniquely integrates hardware semaphore arbitration, 2V data retention, and MASTER/SLAVE BUSY signaling-reducing BOM count, PCB area, and firmware complexity in real-time inter-processor systems.

Availability

7024L35G is available at Aetrix Electronics and suitable for industrial PLC backplanes, aerospace avionics cross-channel sync, and medical imaging data pipelines requiring stable component supply across extended product lifecycles.

Supply support for 7024L35G 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, and RF solutions, now part of Renesas Electronics since 2019.

The 7024L35G belongs to IDT's legacy high-speed dual-port SRAM family, engineered specifically for deterministic, low-latency inter-processor communication in mission-critical embedded systems.

FAQ

What is the guaranteed maximum read cycle time for the 7024L35G?

The 7024L35G has a guaranteed maximum read cycle time (tRC) of 35 ns across its specified industrial temperature range (−40°C to +85°C) and 4.5 V to 5.5 V supply. This value is production-tested and applies to both ports under worst-case voltage and temperature conditions, ensuring deterministic timing for real-time systems.

Does the 7024L35G support battery backup operation, and what is the minimum retention voltage?

Yes, the 7024L35G supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as specified in the datasheet. In retention mode, it draws only 100 µA typical current-enabling direct connection to standard 2V lithium or backup capacitors without regulation circuitry.

How does the MASTER/SLAVE configuration work on the 7024L35G?

The 7024L35G uses the M/S pin to configure port behavior: when M/S = H, BUSY is an output flag indicating contention; when M/S = L, BUSY becomes an input for slave-side arbitration. This enables seamless cascading of multiple devices for 32-bit+ bus expansion without external logic.

What package type is used for the 7024L35G, and is it RoHS-compliant?

The 7024L35G is supplied in a 100-pin Thin Quad Flatpack (TQFP) package, code PNG100, with dimensions 14 mm × 14 mm × 1.4 mm. It is RoHS-compliant and lead-free, meeting JEDEC standard J-STD-020 moisture sensitivity level (MSL) 3 requirements for surface-mount assembly.

Can the 7024L35G perform simultaneous read operations from both ports to the same memory address?

Yes, the 7024L35G features true dual-port memory cells that allow simultaneous reads from identical addresses on both ports without conflict or timing penalty. This capability is intrinsic to its cell architecture and requires no special control sequencing-enabling lock-step verification and mirrored data access.

7024L35G Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 84-BPGA

Packaging:: Tray

Product Status:: Obsolete

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:: 35ns

Access Time:: 35 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 84-PGA (27.94x27.94)

7024L35G FAQ

1.How can I place an order for 7024L35G through Aetrix?

Please submit a Request for Quotation (RFQ) for 7024L35G 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 7024L35G reliable?

The price and inventory of 7024L35G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024L35G is usually 5 days.

3.What payment methods are accepted for 7024L35G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024L35G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7024L35G?

7024L35G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7024L35G 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 7024L35G?

For technical support, including 7024L35G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024L35G requirements.

6.How does Aetrix verify that 7024L35G is sourced from the original manufacturer or authorized distributors?

All 7024L35G 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 7024L35G meets industry standards.

7.What is the process for return or replacement of 7024L35G?

All 7024L35G units undergo pre-shipment inspection (PSI). If there is an issue with 7024L35G, 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 7024L35G part is unused and in its original packaging.

Return procedure for 7024L35G:

1.Submit a request within 90 days.

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

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