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Renesas 7024S25G
- Part No.:
- 7024S25G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-BPGA
- Datasheet:
-
7024S25G.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 84PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
7024S25G from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 25 ns maximum read cycle time (tRC), TTL-compatible 5V ±10% supply, and on-chip semaphore arbitration logic. It enables simultaneous asynchronous access to the same memory location and supports MASTER/SLAVE cascading for 32-bit+ bus expansion in real-time embedded systems.
For engineers reviewing the 7024S25G datasheet, 7024S25G pinout, 7024S25G application, or 7024S25G equivalent, key selection criteria include dual-port arbitration timing (tBDD ≤ 30 ns), battery-backed data retention at 2V (IDT7024L variant), industrial temperature support (–40°C to +85°C), and compatibility with 84-pin PLCC/PGA/Flatpack or 100-pin TQFP packages.
Technical Context
The 7024S25G implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port, enabling concurrent read/write operations without external logic. 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 signaling across ports using A0–A2 address lines to select one of eight flags, with dedicated SEM, SEML, and SEMR pins. The device supports byte-level control (UBL/UBR, LBL/LBR) and operates in battery backup mode down to 2V for data retention - a feature confirmed for the L variant but not specified for the S variant in official documentation.
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 (tRC) | 25 ns - defines minimum time between successive reads on same port; critical for real-time throughput |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no auxiliary supplies required |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments per datasheet Grade "I" specification |
| Active Power (Typ.) | 750 mW - typical dynamic power at fMAX; enables thermal budgeting in dense PCB layouts |
| Standby Current (Typ.) | 5 mW (7024S) - low quiescent draw during CE-high power-down; reduces system idle power |
| Package Options | 84-pin PLCC, PGA, Flatpack; 100-pin TQFP - footprint flexibility for legacy and space-constrained designs |
Pinout & Package
7024S25G is available in 84-pin PLCC (PLG84), 84-pin ceramic PGA (GU84), 84-pin Flatpack (FP84), and 100-pin TQFP (PNG100) packages. Pin functions are identical across all variants; mechanical dimensions and thermal characteristics differ per package type.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Asynchronous enable per port; deassertion places respective port in high-impedance standby |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low signal determining direction of data transfer on each port independently |
| OEL / OER | Output Enable (Left/Right) | Controls tri-state of I/O drivers; allows shared bus usage without external buffers |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select | Enables byte-wide writes to I/O[15:8] or I/O[7:0], supporting multiplexed 8-bit bus interfaces |
| SEML / SEMR | Semaphore Enable (Left/Right) | Activates semaphore register access mode; used with A0–A2 to read/write 8 flag bits |
| BUSYL / BUSYR | Busy Flag (Left/Right) | In MASTER mode: output indicating port contention; in SLAVE mode: input synchronizing write arbitration |
| M/S | Master/Slave Select | Configures BUSY pin behavior: HIGH = BUSY output (master), LOW = BUSY input (slave) |
| INTL / INTR | Interrupt Flag (Left/Right) | Open-drain push-pull output signaling semaphore or arbitration events to host controller |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent read/write access to identical memory locations - eliminates software synchronization overhead in multi-CPU systems |
| On-Chip Port Arbitration | Hardware-resolved contention via BUSY flag handshake - removes need for external arbitration logic or glue ICs |
| Full Semaphore Support | Eight dedicated hardware semaphore flags accessible via A0–A2 and SEM pins - enables inter-processor coordination without shared memory polling |
| Asynchronous Operation | No clock required; timing defined solely by setup/hold/access parameters - simplifies integration with heterogeneous bus protocols |
| Byte-Controlled Writes | Separate upper-byte (I/O[15:8]) and lower-byte (I/O[7:0]) enables - supports legacy 8-bit peripherals and mixed-width data transfers |
Applications
| Industrial Motion Controller | Avionics Data Buffer |
|---|---|
|
Use Scenario: Real-time coordination between motion CPU and FPGA-based servo driver using shared memory for position setpoints and status feedback. IC Role / Device Role / Timing Role: Dual-port SRAM acts as deterministic, low-latency communication buffer with hardware arbitration preventing race conditions during concurrent access. Use Value: 25 ns tRC and sub-30 ns tBDD ensure <100 ns worst-case inter-processor message latency - meeting hard real-time jitter requirements. |
Use Scenario: High-integrity flight management system exchanging sensor fusion results between redundant processor channels. IC Role / Device Role / Timing Role: Memory provides fault-isolated dual-port interface with semaphore-controlled resource locking for critical avionics data exchange. Use Value: On-chip semaphores eliminate software mutex overhead; industrial-grade –40°C to +85°C rating ensures reliability across operational envelope. |
| Telecom Line Card | Medical Imaging Subsystem |
|
Use Scenario: Packet buffering between network processor and DSP in a 10Gbps line card where deterministic latency is essential for QoS compliance. IC Role / Device Role / Timing Role: Acts as zero-wait-state dual-port FIFO with independent read/write clocks, synchronized via BUSY handshake. Use Value: 84-pin PLCC package supports high-density layout; 5V TTL compatibility avoids level-shifting complexity in legacy telecom backplanes. |
Use Scenario: Real-time transfer of ultrasound image frames between acquisition FPGA and display processor in portable diagnostic equipment. IC Role / Device Role / Timing Role: Provides non-blocking memory conduit for pixel data streaming while allowing concurrent metadata updates via semaphore flags. Use Value: Simultaneous read/write capability enables continuous frame capture and display rendering without pipeline stalls or frame drops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-25AXC | 25 ns tRC, 4K × 16, 3.3V core (5V-tolerant I/O), 100-pin TQFP only | Requires level translation in pure 5V systems; lower active power (≈450 mW) but lacks 2V data retention | Preferred for new 3.3V designs seeking lower power; not drop-in compatible due to voltage and package constraints |
| IDT70V24S25PF | 25 ns tRC, 4K × 16, 3.3V supply, 100-pin TQFP, LVDS-compatible | Not 5V-tolerant; incompatible with 5V bus systems without interface logic; no industrial temp option | Select when migrating to 3.3V infrastructure; unsuitable as direct replacement for 7024S25G in existing 5V industrial hardware |
Compared with CY7C024AV-25AXC and IDT70V24S25PF, the 7024S25G uniquely supports single 5V operation, industrial temperature range, and multiple legacy packages - making it the only viable choice for maintaining or repairing deployed 5V dual-port memory subsystems.
Availability
7024S25G is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data buffers, and telecom line cards requiring stable component supply across extended product lifecycles.
Supply support for 7024S25G 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 semiconductor company specializing in timing, memory interface, RF, and high-performance silicon solutions, now part of Renesas Electronics.
The IDT7024 family was designed for deterministic inter-processor communication in real-time embedded systems, emphasizing hardware arbitration, semaphore support, and robust 5V dual-port memory performance.
FAQ
What is the maximum operating speed of the 7024S25G?
The 7024S25G has a maximum read cycle time (tRC) of 25 ns, corresponding to a theoretical maximum sustained access rate of 40 MHz per port. This speed is guaranteed over the full industrial temperature range (–40°C to +85°C) with 5.0 V ±10% supply, and applies to both read and write cycles under specified AC test conditions.
Does the 7024S25G support battery backup for data retention?
The 7024S25G is the "S" (standard power) variant and does not specify 2V data retention in its datasheet. Battery backup operation down to 2V is explicitly documented only for the "L" (low-power) variant (e.g., 7024L25G). For retention-critical applications, the L variant must be selected instead of the S variant.
How does the M/S pin affect BUSY functionality in the 7024S25G?
When M/S = HIGH, the 7024S25G operates as a MASTER: BUSYL and BUSYR are outputs that assert during port contention. When M/S = LOW, it operates as a SLAVE: BUSYL and BUSYR become inputs used to synchronize write operations with an external master device. This configuration enables scalable multi-device memory expansion without external arbitration logic.
Can the 7024S25G perform simultaneous reads from both ports to the same memory address?
Yes - the 7024S25G uses true dual-port memory cells that allow completely independent, simultaneous reads from both left and right ports to any identical address location. No arbitration delay or BUSY assertion occurs during concurrent reads, ensuring deterministic latency for mirrored data access in multi-processor architectures.
Which packages are available for the 7024S25G?
The 7024S25G is offered in four package types: 84-pin PLCC (PLG84), 84-pin ceramic PGA (GU84), 84-pin Flatpack (FP84), and 100-pin TQFP (PNG100). All share identical pinout and electrical specifications; mechanical dimensions, thermal resistance, and mounting methods differ per package - enabling selection based on legacy compatibility, thermal needs, or board assembly constraints.
7024S25G 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:
- 25ns
- Access Time:
- 25 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)
7024S25G FAQ
1.How can I place an order for 7024S25G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024S25G 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 7024S25G reliable?
The price and inventory of 7024S25G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024S25G is usually 5 days.
3.What payment methods are accepted for 7024S25G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024S25G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024S25G?
7024S25G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024S25G 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 7024S25G?
For technical support, including 7024S25G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024S25G requirements.
6.How does Aetrix verify that 7024S25G is sourced from the original manufacturer or authorized distributors?
All 7024S25G 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 7024S25G meets industry standards.
7.What is the process for return or replacement of 7024S25G?
All 7024S25G units undergo pre-shipment inspection (PSI). If there is an issue with 7024S25G, 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 7024S25G part is unused and in its original packaging.
Return procedure for 7024S25G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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