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Renesas 7025L15PF8
- Part No.:
- 7025L15PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7025L15PF8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,032
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Product details
Overview
7025L15PF8 from IDT is a high-speed 8K × 16 (128 Kbit) true dual-port static RAM with independent asynchronous left/right ports, 15 ns max read cycle time (commercial grade), 1 µA typical standby current, and TTL-compatible 5 V ±10% operation - used in real-time inter-processor communication, video frame buffers, and military-grade avionics data exchange.
For engineers reviewing the 7025L15PF8 datasheet, 7025L15PF8 pinout, 7025L15PF8 application, or 7025L15PF8 equivalent, key selection criteria include simultaneous dual-port access timing, BUSY/INT semaphore arbitration, battery-backed 2 V data retention, and 84-pin PGA package compatibility with legacy MIL-PRF-38535 systems.
Technical Context
The 7025L15PF8 implements full hardware port arbitration with dedicated BUSY flag logic and eight on-chip semaphore registers accessible via A0–A2 address lines. Its dual-port architecture permits concurrent reads to the same memory location without contention, while M/S pin configures master/slave cascading for 32-bit+ bus expansion.
It supports two distinct operational modes: RAM access (CE = VIL, SEM = VIH) and semaphore register access (CE = VIH or UB/LB = VIH, SEM = VIL), with separate tSAA/tSOP timing parameters validated for both. Data retention at 2 V is guaranteed across –55°C to +125°C for military applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 16 bits (128 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tRC) | 15 ns max (commercial grade); enables sub-67 MHz synchronous interface clocking in tightly timed control loops |
| Standby Current (ISB3) | 0.2 mA typ. (full CMOS standby); allows battery backup operation with <1 µW average power draw at 2 V |
| Data Retention Voltage | 2.0 V min; maintains valid data during brown-out or hot-swap events in ruggedized embedded systems |
| Operating Temperature | –55°C to +125°C (military grade); qualified per MIL-PRF-38535 QML for aerospace and defense platforms |
| Supply Voltage | 5.0 V ±10%; TTL-compatible I/O eliminates level-shifting requirements in legacy 5 V system designs |
| Package | 84-pin ceramic PGA (PLG84); hermetically sealed, leaded package with 1.15″ × 1.15″ footprint for high-reliability mounting |
Pinout & Package
7025L15PF8 is housed in an 84-pin ceramic Pin Grid Array (PLG84) package with 0.100″ pin pitch, hermetic sealing, and MIL-STD-883-compliant construction. Pin 1 is located at corner A1 (index mark adjacent to pin 1), and all VCC/GND pins require local decoupling per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Independent enable per port; deassertion places respective port in low-power standby (ISB1–ISB4) |
| R/WL / R/WR | Read/Write Control (Left / Right) | Active-low write strobe; controls direction of data flow on I/O0–I/O15 bidirectional buses |
| OEL / OER | Output Enable (Left / Right) | Tri-states I/O drivers independently; required for bus sharing in multi-device configurations |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select | Enables byte-level writes (I/O8–I/O15 or I/O0–I/O7) - critical for multiplexed 8-bit host interfaces |
| SEML / SEMR | Semaphore Enable | Activates 8-register semaphore block (addressed by A0–A2); resolves port contention without external logic |
| BUSYL / BUSYR | Busy Flag (Master Output / Slave Input) | M/S = H: BUSY outputs assertion during port conflict; M/S = L: BUSY input blocks write until cleared |
| INTL / INTR | Interrupt Flag | Open-drain push-pull output signals semaphore state change or arbitration event to host processor |
| A0L–A12L / A0R–A12R | Address Inputs | 13-bit address per port (8K = 2¹³); supports independent addressing for ping-pong or FIFO-style buffering |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data Bus | 16-bit parallel interface per port; supports simultaneous read/write across ports with no wait states |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables zero-wait-state concurrent access from two independent controllers - eliminates arbitration bottlenecks in real-time DSP or radar subsystems |
| Hardware Semaphore Logic | Eight dedicated registers with atomic read-modify-write support prevent race conditions during shared resource access in multi-CPU systems |
| Automatic Power-Down | Chip Enable-driven transition to 0.2 mA standby (ISB3) reduces system power by >99% vs active mode - essential for battery-operated field units |
| 2 V Data Retention | Maintains stored contents during main supply loss; enables graceful shutdown and fast resume in mission-critical avionics |
| Master/Slave Cascading | M/S pin configures device as master (BUSY output) or slave (BUSY input), enabling seamless 32-bit+ word expansion without glue logic |
Applications
| Real-Time Inter-Processor Communication | Video Frame Buffering |
|---|---|
Use Scenario: Two independent processors (e.g., DSP and microcontroller) exchange sensor fusion data with deterministic latency. IC Role / Device Role / Timing Role: Shared memory buffer with hardware semaphore arbitration ensures atomic message passing without software overhead. Use Value: Eliminates polling delays and guarantees mutual exclusion - achieving sub-15 ns interlock resolution in autonomous vehicle ECUs. | Use Scenario: Capturing and displaying high-frame-rate video streams in broadcast equipment or medical imaging systems. IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong frame buffer: one port writes incoming pixel data while the other reads out to display engine. Use Value: Enables continuous 60+ fps capture/playback with zero dropped frames due to simultaneous non-blocking access. |
| Military Avionics Data Exchange | Radar Signal Processing Subsystem |
Use Scenario: Secure, radiation-tolerant data transfer between flight control computer and inertial measurement unit in fighter aircraft. IC Role / Device Role / Timing Role: MIL-PRF-38535-qualified dual-port RAM provides tamper-resistant shared memory with BUSY-flag collision detection. Use Value: Meets DO-254 Level A design assurance for safety-critical functions; retains data at 2 V during power transients. | Use Scenario: Storing intermediate FFT results in airborne radar front-end where ADC sampling and DSP processing occur concurrently. IC Role / Device Role / Timing Role: Left port accepts digitized RF samples from ADC; right port feeds processed data to beamforming engine. Use Value: 15 ns access time sustains >66 MHz effective throughput - matching high-speed SAR pulse repetition rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1370D-133BAXI | 133 MHz QDR SRAM, 18 Mb density, 1.8 V core, LVDS I/O - higher bandwidth but incompatible voltage/logic family | Targeted at high-throughput networking ASIC interfaces, not legacy 5 V military systems | Select only if migrating to modern low-voltage, high-speed architectures with redesign budget. |
| AS7C3256A-15JCIN | Commercial 5 V 32K × 8 async SRAM, single-port, 15 ns access, SOJ-32 package - no dual-port or semaphore logic | Suitable for cost-sensitive industrial controllers where inter-processor coordination is handled externally | Choose when dual-port functionality is unnecessary and PCB space/layout constraints favor smaller packages. |
Compared with CY7C1370D-133BAXI and AS7C3256A-15JCIN, the 7025L15PF8 uniquely delivers military-grade 5 V dual-port operation with integrated arbitration - preserving legacy system compatibility while eliminating external semaphores and glue logic.
Availability
7025L15PF8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, military avionics data exchange, and radar signal processing subsystems requiring stable component supply across extended product lifecycles.
Supply support for 7025L15PF8 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 sensor solutions, now part of Renesas Electronics since 2019.
The 7025L15PF8 belongs to IDT's legacy high-reliability dual-port SRAM product line, designed specifically for deterministic, contention-free memory sharing in aerospace, defense, and industrial control systems.
FAQ
What is the maximum operating temperature range certified for the 7025L15PF8?
The 7025L15PF8 is rated for –55°C to +125°C operation and manufactured in compliance with MIL-PRF-38535 QML, making it suitable for deployment in jet engine control units, missile guidance systems, and other extreme-environment military platforms where thermal stability is mission-critical. This specification is verified per datasheet Table 5 and absolute maximum ratings.
Does the 7025L15PF8 support battery backup operation, and what voltage is required?
Yes, the 7025L15PF8 supports battery backup with guaranteed data retention at VCC = 2.0 V minimum across its full military temperature range. The low 0.2 mA ISB3 standby current enables multi-year operation from small lithium primary cells - a key requirement for unattended field sensors and secure crypto modules using the 7025L15PF8.
How does the BUSY flag function in master versus slave configuration for the 7025L15PF8?
When M/S = H (master), BUSYL/BUSYR are outputs that assert during port contention to block conflicting writes; when M/S = L (slave), BUSYL/BUSYR become inputs that must be monitored before initiating a write. This dual-role behavior is intrinsic to the 7025L15PF8's arbitration logic and enables hierarchical memory expansion without external priority encoders.
Can the 7025L15PF8 perform simultaneous reads from both ports to the same memory address?
Yes, the 7025L15PF8's true dual-port architecture explicitly permits simultaneous reads to identical addresses on left and right ports with no timing penalty or data corruption - a capability confirmed in the Functional Block Diagram and Truth Table I. This enables lock-free status mirroring and real-time diagnostics in safety-critical 7025L15PF8-based systems.
What package type and pin count does the 7025L15PF8 use, and is it RoHS-compliant?
The 7025L15PF8 uses an 84-pin ceramic Pin Grid Array (PLG84) package with hermetic sealing and leaded terminations. While the base material meets MIL-STD-883 requirements, this specific variant (7025L15PF8) is not RoHS-compliant due to leaded solder construction - consistent with legacy military procurement standards documented in the October 2019 datasheet revision DSC 2683/13.
7025L15PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- 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:
- 100-TQFP (14x14)
7025L15PF8 FAQ
1.How can I place an order for 7025L15PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7025L15PF8 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 7025L15PF8 reliable?
The price and inventory of 7025L15PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7025L15PF8 is usually 5 days.
3.What payment methods are accepted for 7025L15PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7025L15PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7025L15PF8?
7025L15PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7025L15PF8 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 7025L15PF8?
For technical support, including 7025L15PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7025L15PF8 requirements.
6.How does Aetrix verify that 7025L15PF8 is sourced from the original manufacturer or authorized distributors?
All 7025L15PF8 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 7025L15PF8 meets industry standards.
7.What is the process for return or replacement of 7025L15PF8?
All 7025L15PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7025L15PF8, 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 7025L15PF8 part is unused and in its original packaging.
Return procedure for 7025L15PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7025L15PF8 Tags
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