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Renesas 7025L15PFG8
- Part No.:
- 7025L15PFG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7025L15PFG8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
7025L15PFG8 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 systems.
For engineers reviewing the 7025L15PFG8 datasheet, 7025L15PFG8 pinout, 7025L15PFG8 application, or 7025L15PFG8 equivalent, key selection criteria include simultaneous port arbitration latency, BUSY flag timing under address contention, semaphore flag update pulse width, and battery-backed 2 V data retention capability for fail-safe memory hold.
Technical Context
The 7025L15PFG8 implements full hardware port arbitration with dedicated BUSY output (Master) or BUSY input (Slave) via M/S pin, enabling deterministic resolution of simultaneous access to identical addresses. Its on-chip semaphore logic supports eight independent flags addressed by A0–A2, with tSOP = 10 ns semaphore update pulse width and tSPS = 5 ns contention window.
It operates fully asynchronously from either port, with separate CE/R/W/OE/UB/LB controls per side, and supports multiplexed bus compatibility via independent upper- and lower-byte enables. The device enters ultra-low-power standby (1 µA typ.) when both chip enables are deasserted with CMOS-level inputs.
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 temperature range, 0°C to +70°C) - defines minimum read cycle duration for guaranteed data validity |
| Standby Current (ISB3) | 0.2 µA typical (full CMOS standby, both ports disabled) - enables battery backup operation with 2 V supply |
| Supply Voltage | 5.0 V ±10% - TTL-compatible single-supply operation; no separate I/O or core voltage rails required |
| Data Retention Voltage | 2.0 V minimum - retains stored data during power loss without external backup circuitry |
| Operating Temperature | Commercial grade: 0°C to +70°C - validated for non-industrial embedded control and communications subsystems |
| Package | 100-pin Thin Quad Flatpack (TQFP), 14 mm × 14 mm × 1.4 mm - surface-mount compatible with automated PCB assembly |
Pinout & Package
7025L15PFG8 is housed in a 100-pin TQFP (Thin Quad Flatpack) package with 0.5 mm pitch, compliant with JEDEC MO-158. All VCC pins require local decoupling; all GND pins must be connected to system ground plane for signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L | Left Port Address Inputs | 13-bit address bus for left-side memory access (8K = 2¹³ locations) |
| A0R–A12R | Right Port Address Inputs | Independent 13-bit address bus for right-side access; enables true concurrent addressing |
| I/O0L–I/O15L | Left Port Bidirectional Data | 16-bit data path; direction controlled by R/WL and OEL; supports byte-select via UBL/LBL |
| I/O0R–I/O15R | Right Port Bidirectional Data | 16-bit data path; independent of left port - no bus contention or arbitration overhead |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables; each port can be independently disabled to reduce dynamic power |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low write enable; high = read mode; drives internal sense amplifiers or drivers accordingly |
| OEL / OER | Output Enable (Left/Right) | Tri-states I/O pins when deasserted; allows shared bus usage with other devices |
| UBL / UBR | Upper-Byte Select (Left/Right) | Enables I/O8–I/O15 only; supports 8-bit microprocessor interfaces without data bus widening |
| LBL / LBR | Lower-Byte Select (Left/Right) | Enables I/O0–I/O7 only; permits byte-granular writes in mixed-width systems |
| SEML / SEMR | Semaphore Enable (Left/Right) | Activates on-chip semaphore register access (A0–A2 address space); required for inter-port synchronization |
| INTL / INTR | Interrupt Flag Output (Left/Right) | Open-drain push-pull output signals semaphore or error events; requires external pull-up |
| BUSYL / BUSYR | Busy Flag (Left/Right) | When M/S = H (Master), BUSYR outputs contention status; when M/S = L (Slave), BUSYL accepts BUSY input |
| M/S | Master/Slave Select | Configures device role in cascaded systems; determines BUSY pin direction and arbitration priority |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent reads/writes to same or different addresses - eliminates software polling or external arbitration logic |
| Hardware Semaphore Logic | Eight dedicated flags accessible via A0–A2; tSOP = 10 ns update pulse ensures fast inter-processor signaling |
| Ultra-Low Standby Power | 1 µA typical ISB3 current at 2 V enables >10-year battery-backed data retention in mission-critical systems |
| On-Chip Arbitration | Automatic BUSY assertion on address/contention; tBDD ≤ 30 ns guarantees valid read data after BUSY deassertion |
| Byte-Enable Flexibility | Separate UBL/LBL and UBR/LBR allow 8-bit or 16-bit transfers per port - simplifies integration with legacy 8-bit controllers |
Applications
| Real-Time Inter-Processor Communication | Video Frame Buffering |
|---|---|
Use Scenario: Two DSPs exchanging sensor fusion data in autonomous vehicle ECU with sub-microsecond latency requirements. IC Role / Device Role / Timing Role: Shared memory buffer with deterministic arbitration; BUSY flag resolves simultaneous access to same pixel metadata address. Use Value: Eliminates software mutex overhead; 15 ns tRC and tBDD ≤ 30 ns ensure pipeline continuity at 66 MHz processor clock. |
Use Scenario: Digital camera image pipeline buffering between image sensor interface and JPEG encoder ASIC. IC Role / Device Role / Timing Role: Dual-port frame store - left port captures raw Bayer data while right port streams compressed YUV to memory controller. Use Value: No external FIFO or glue logic needed; 16-bit width matches sensor parallel output; tAA ≤ 15 ns meets 40 MSPS pixel rate. |
| Military Avionics Data Exchange | Industrial PLC Redundancy Module |
Use Scenario: Fault-tolerant flight control computer sharing telemetry and actuator commands between primary and backup channels. IC Role / Device Role / Timing Role: Dual-port RAM with M/S configuration; Master asserts BUSY during critical command writes; Slave synchronizes via semaphore flags. Use Value: MIL-PRF-38535 qualified; 2 V data retention preserves last known safe state during brownout; tINS ≤ 20 ns interrupt latency meets DO-254 timing budgets. |
Use Scenario: Hot-swappable redundancy module in industrial safety PLC where primary and backup CPUs maintain synchronized process state. IC Role / Device Role / Timing Role: Shared state memory with semaphore-controlled access; INTL/INTR signals state change events to both CPUs. Use Value: Hardware arbitration prevents race conditions; ISB3 = 0.2 µA enables low-power keep-alive monitoring during standby; 100-pin TQFP fits constrained board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-15ZXI | 3.3 V core supply; 15 ns access; 16K × 16 organization; LVCMOS I/O | Requires level-shifting for 5 V systems; larger density but incompatible voltage domain | Select only if migrating to 3.3 V architecture and needing higher capacity; not drop-in compatible with 7025L15PFG8 |
| IDT70V25L15PF | Same pinout and function but fabricated in newer 0.35 µm process; 3.3 V I/O tolerant; supports 100 MHz operation | Backward-compatible replacement with improved speed/power; requires validation of 3.3 V interface margins | Preferred upgrade path for new designs requiring extended lifecycle support; identical footprint and signal mapping |
Compared with CY7C1362BV33-15ZXI and IDT70V25L15PF, the 7025L15PFG8 offers proven 5 V TTL compatibility and military-grade reliability at the cost of higher active power and no 3.3 V support - making it optimal for legacy avionics and industrial control upgrades where voltage stability and long-term component availability are prioritized over density or process node.
Availability
7025L15PFG8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, video frame buffering, and military avionics data exchange requiring stable component supply across extended production lifecycles.
Supply support for 7025L15PFG8 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 high-performance silicon solutions, now part of Renesas Electronics.
The IDT7025 family was designed for deterministic, low-latency shared-memory architectures in defense, aerospace, and industrial automation - emphasizing hardware arbitration, battery backup, and multi-temperature grade reliability.
FAQ
What is the maximum operating temperature range supported by the 7025L15PFG8?
The 7025L15PFG8 is rated for commercial temperature operation from 0°C to +70°C. It is not specified for industrial (–40°C to +85°C) or military (–55°C to +125°C) ranges - those grades require distinct part numbers such as 7025L15PGI or 7025L15PGM. This thermal specification directly impacts its suitability for enclosed consumer or office-environment electronics.
Does the 7025L15PFG8 support battery backup operation, and what voltage is required?
Yes, the 7025L15PFG8 supports battery backup with guaranteed data retention down to 2.0 V (VDR), as confirmed in Table 10 of the datasheet. At this voltage, ICCDR is characterized up to 4000 µA (max) across all temperature grades. This feature enables seamless transition to backup power during main supply failure without external retention circuitry.
How does the M/S pin configure arbitration behavior in the 7025L15PFG8?
When M/S = HIGH, the 7025L15PFG8 operates as Master: BUSYR becomes an output that asserts during port contention, while BUSYL remains unused. When M/S = LOW, it operates as Slave: BUSYL becomes an input that must be driven by a Master's BUSYR signal to gate writes. This pin physically defines the arbitration hierarchy in multi-device configurations.
What is the purpose of the semaphore flags in the 7025L15PFG8, and how are they accessed?
The 7025L15PFG8 integrates eight hardware semaphore flags used for inter-port synchronization. They are accessed by setting SEM = LOW and addressing A0–A2 (3 bits), while keeping UB/LB = HIGH and CE = HIGH. Each flag is written via I/O0 and read across I/O0–I/O15, with tSOP = 10 ns pulse width ensuring rapid lock/unlock cycles in real-time systems.
Can the 7025L15PFG8 be used in a 32-bit data path configuration, and how is that achieved?
Yes - the 7025L15PFG8 supports 32-bit expansion using Master/Slave cascading. One device is configured as Master (M/S = HIGH), another as Slave (M/S = LOW), and their BUSY signals are interconnected. The IDT7025 family's built-in arbitration logic ensures full-speed, error-free operation without external glue logic, as stated in the device description on page 1.
7025L15PFG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
7025L15PFG8 FAQ
1.How can I place an order for 7025L15PFG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7025L15PFG8 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 7025L15PFG8 reliable?
The price and inventory of 7025L15PFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7025L15PFG8 is usually 5 days.
3.What payment methods are accepted for 7025L15PFG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7025L15PFG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7025L15PFG8?
7025L15PFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7025L15PFG8 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 7025L15PFG8?
For technical support, including 7025L15PFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7025L15PFG8 requirements.
6.How does Aetrix verify that 7025L15PFG8 is sourced from the original manufacturer or authorized distributors?
All 7025L15PFG8 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 7025L15PFG8 meets industry standards.
7.What is the process for return or replacement of 7025L15PFG8?
All 7025L15PFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7025L15PFG8, 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 7025L15PFG8 part is unused and in its original packaging.
Return procedure for 7025L15PFG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7025L15PFG8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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