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Renesas 7025L15JG8
- Part No.:
- 7025L15JG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
7025L15JG8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,440
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Product details
Overview
IDT7025L15JG8 from Integrated Device Technology (IDT) is a high-speed 8K × 16-bit true dual-port static RAM with 15 ns maximum read cycle time, TTL-compatible 5V ±10% operation, and industrial temperature range (–40°C to +85°C). It supports simultaneous independent access from left and right ports, on-chip semaphore arbitration, and battery backup data retention at 2V - enabling use in real-time inter-processor communication, video frame buffers, and military-grade embedded systems.
For engineers reviewing the IDT7025L15JG8 datasheet, IDT7025L15JG8 pinout, IDT7025L15JG8 application, or IDT7025L15JG8 equivalent, key selection criteria include its 15 ns access timing, 1 mW standby power (L-version), dual-port arbitration logic, 84-pin PGA package, and support for MASTER/SLAVE cascading in 32-bit memory systems.
Technical Context
The IDT7025L15JG8 implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, allowing concurrent read/write operations-even to the same memory location-via hardware-managed BUSY flag arbitration. Its M/S pin configures master (BUSY output) or slave (BUSY input) mode for multi-device expansion.
It integrates full on-chip semaphore logic (8 flags, addressed via A0–A2), interrupt flag generation (INTL/INTR), and byte-selectable I/O (UBL/LBL, UBR/LBR) for multiplexed bus compatibility. The device operates in standard TTL voltage levels and supports data retention down to 2V with typical 500 µW consumption in battery-backup mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 16-bit (128 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tRC) | 15 ns max - enables real-time deterministic latency in high-throughput inter-processor links |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL logic families without level-shifting |
| Standby Current (ISB3) | 0.2 mA typ - ultra-low-power full-standby mode with CMOS-level inputs for battery-backed operation |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including avionics and motor control |
| Data Retention | 2 V minimum - maintains memory state during main power loss using external backup battery |
| Package | 84-pin Ceramic PGA (PLG84) - hermetically sealed, MIL-PRF-38535 compliant for high-reliability applications |
Pinout & Package
Package: 84-pin Ceramic Pin Grid Array (PLG84), body size ≈ 1.15 in × 1.15 in × 0.17 in, hermetic, MIL-PRF-38535 QML-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable per port; controls port activation and power-down entry |
| R/WL / R/WR | Read/Write Control (Left / Right) | Active-low write enable; determines direction of data transfer on respective port |
| OEL / OER | Output Enable (Left / Right) | Active-low tri-state control for I/O drivers; decouples bus loading during inactive cycles |
| A0L–A12L / A0R–A12R | Address Inputs (Left / Right) | 13-bit address bus per port; supports full 8K address space (0–8191) independently |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data Bus (Left / Right) | 16-bit parallel data path per port; supports byte-wide access via UBL/LBL and UBR/LBR |
| UBL / UBR | Upper-Byte Select (Left / Right) | Enables I/O8–I/O15 only; allows 8-bit microprocessor bus compatibility |
| LBL / LBR | Lower-Byte Select (Left / Right) | Enables I/O0–I/O7 only; supports multiplexed 8-bit data transfers |
| SEML / SEMR | Semaphore Enable (Left / Right) | Activates 8-flag semaphore register (addressed by A0–A2); enables inter-port synchronization |
| INTL / INTR | Interrupt Flag Output (Left / Right) | Open-collector active-low flag signaling semaphore or write completion events |
| BUSYL / BUSYR | Busy Flag (Master Output / Slave Input) | When M/S = H: BUSYR asserts to block conflicting writes; when M/S = L: BUSYL accepts arbitration signal |
| M/S | Master/Slave Select | Configures device role in cascaded systems: HIGH = Master (BUSY output), LOW = Slave (BUSY input) |
| VCC / GND | Power Supply | Multiple distributed VCC/GND pins ensure low-noise operation and stable power delivery across high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables simultaneous reads/writes from both ports-including concurrent access to identical addresses-without external arbitration logic |
| On-Chip Semaphore Logic | Eight dedicated hardware semaphore flags (A0–A2 addressable) eliminate need for software locks or external semaphores in multi-CPU systems |
| MASTER/SLAVE Cascading Support | Allows seamless expansion to 32-bit+ data width using M/S pin and BUSY handshake-no glue logic required |
| 2V Data Retention Mode | Preserves memory contents during main power failure using backup battery; consumes only ~500 µW typical |
| Industrial Temperature Range | Rated for continuous operation from –40°C to +85°C, validated per MIL-PRF-38535 QML for mission-critical reliability |
Applications
| Real-Time Inter-Processor Communication | Video Frame Buffering |
|---|---|
|
Use Scenario: Two independent processors (e.g., DSP + MCU) exchange sensor data and control commands with zero-latency handshaking. IC Role / Device Role / Timing Role: Acts as shared memory with hardware arbitration; BUSY and semaphore signals coordinate access without CPU overhead. Use Value: Eliminates polling or software mutexes; 15 ns access ensures sub-microsecond inter-core messaging latency. |
Use Scenario: Capturing and displaying progressive-scan video at 60 fps with minimal frame tearing or jitter. IC Role / Device Role / Timing Role: Serves as dual-port frame buffer: one port writes incoming pixel data, the other reads for display engine. Use Value: Enables flicker-free overlay and real-time effects by decoupling capture and render pipelines with deterministic timing. |
| Military Avionics Data Hub | Digital Signal Processing Co-Processing |
|
Use Scenario: Integrating radar, navigation, and comms subsystems in a fly-by-wire aircraft control unit. IC Role / Device Role / Timing Role: Provides radiation-tolerant, temperature-stable shared memory between safety-critical partitions. Use Value: Ceramic PGA package and MIL-PRF-38535 qualification ensure operation under extreme thermal cycling and EMI stress. |
Use Scenario: Offloading FFT, filtering, or modulation tasks from a host processor to an FPGA-based accelerator. IC Role / Device Role / Timing Role: Bridges high-bandwidth streaming data between host and accelerator with no wait states. Use Value: 16-bit bidirectional I/O per port and 15 ns access sustain >66 MB/s sustained throughput for real-time signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C028V-15AXC | 15 ns access, 8K × 16, 3.3V core (5V tolerant I/O), 100-pin TQFP; higher speed grade but requires level translation for pure 5V systems | Targeted at newer 3.3V designs with mixed-voltage interfaces; lacks MIL-qualified variants | Preferred for commercial 3.3V systems where footprint and power efficiency outweigh hermetic packaging needs |
| IDT70V25L15PF | Same 8K × 16 organization and 15 ns timing, but in 100-pin TQFP; LVDS-compatible variant with lower EMI and 3.3V supply | Designed for high-density PCBs with fine-pitch routing; not suitable for legacy through-hole or ceramic-reliant mil-aero layouts | Select when board space and signal integrity are prioritized over extended temperature and hermetic sealing |
Compared with CY7C028V-15AXC and IDT70V25L15PF, the IDT7025L15JG8 uniquely delivers 5V-native operation, ceramic PGA ruggedness, and MIL-PRF-38535 compliance - making it irreplaceable in legacy avionics, industrial controllers, and systems requiring guaranteed data retention at 2V without voltage translation.
Availability
IDT7025L15JG8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, military avionics data hubs, and digital signal processing co-processing requiring stable component supply across extended lifecycle programs.
Supply support for IDT7025L15JG8 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions before its acquisition by Renesas Electronics in 2019. IDT pioneered high-performance dual-port SRAMs for real-time embedded systems.
The IDT7025 family was engineered for deterministic, contention-free memory sharing between heterogeneous processors - targeting aerospace, defense, telecom infrastructure, and industrial automation where latency, reliability, and data integrity are non-negotiable.
FAQ
What is the operating temperature range for the IDT7025L15JG8?
The IDT7025L15JG8 is rated for industrial temperature operation from –40°C to +85°C. This range is validated per manufacturer specifications and supports deployment in harsh environments such as motor drives, outdoor base stations, and avionics enclosures without derating.
Does the IDT7025L15JG8 support battery backup operation?
Yes, the IDT7025L15JG8 supports battery backup data retention at VCC = 2V, consuming only ~500 µW typical in this mode. This capability is intrinsic to the "L" (low-power) version and is confirmed in the datasheet's Data Retention Characteristics table (Table 10).
What package type is used for the IDT7025L15JG8?
The IDT7025L15JG8 uses an 84-pin ceramic Pin Grid Array (PLG84) package. It is hermetically sealed, MIL-PRF-38535 QML-qualified, and measures approximately 1.15 in × 1.15 in × 0.17 in - designed for high-reliability, long-lifecycle applications.
How does the BUSY arbitration work on the IDT7025L15JG8?
When configured as Master (M/S = HIGH), the IDT7025L15JG8 asserts BUSYR to block conflicting writes on the right port during address/contention. As Slave (M/S = LOW), it monitors BUSYL to defer writes. Arbitration timing (e.g., tBAA, tBDD) is specified in Table 14a and ensures deterministic resolution without external logic.
Can the IDT7025L15JG8 be used in a 32-bit memory system?
Yes - the IDT7025L15JG8 supports MASTER/SLAVE cascading via the M/S pin and BUSY handshake. Two devices can be combined to form a 8K × 32-bit configuration with full-speed, error-free operation and no additional discrete logic, as documented in the device description and functional block diagram.
7025L15JG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 84-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 128Kbit
- Memory Organization:
- 8K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 84-PLCC (29.31x29.31)
7025L15JG8 FAQ
1.How can I place an order for 7025L15JG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7025L15JG8 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 7025L15JG8 reliable?
The price and inventory of 7025L15JG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7025L15JG8 is usually 5 days.
3.What payment methods are accepted for 7025L15JG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7025L15JG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7025L15JG8?
7025L15JG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7025L15JG8 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 7025L15JG8?
For technical support, including 7025L15JG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7025L15JG8 requirements.
6.How does Aetrix verify that 7025L15JG8 is sourced from the original manufacturer or authorized distributors?
All 7025L15JG8 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 7025L15JG8 meets industry standards.
7.What is the process for return or replacement of 7025L15JG8?
All 7025L15JG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7025L15JG8, 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 7025L15JG8 part is unused and in its original packaging.
Return procedure for 7025L15JG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7025L15JG8 Tags
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