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Renesas 7025L20PFGI8
- Part No.:
- 7025L20PFGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7025L20PFGI8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,119
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Product details
Overview
7025L20PFGI8 from IDT is a high-speed 8K × 16 (128 Kbit) true dual-port static RAM with independent asynchronous left/right ports, 20 ns max read cycle time, 1 mA typical standby current, and industrial temperature range (–40°C to +85°C). It supports simultaneous reads of the same memory location and is used in real-time embedded systems requiring deterministic inter-processor communication, such as radar signal processors and avionics data buffers.
For engineers reviewing the 7025L20PFGI8 datasheet, 7025L20PFGI8 pinout, 7025L20PFGI8 application, or 7025L20PFGI8 equivalent, key selection considerations include its dual-port arbitration logic, semaphore flag support, BUSY flag timing for port contention resolution, battery backup capability at 2 V, and compatibility with 5 V ±10% TTL-level systems.
Technical Context
The 7025L20PFGI8 implements full hardware port arbitration with dedicated BUSY and interrupt flags, enabling conflict-free concurrent access between two independent bus masters. Its on-chip semaphore logic supports eight software-managed synchronization flags accessed via A0–A2 and I/O0–I/O15.
It operates fully asynchronously from either port, with separate CE, R/W, OE, UB/LB, and SEM controls per side. The M/S pin configures master/slave cascading for 32-bit+ word expansion, where BUSY is output on master and input on slave - critical for deterministic multi-device memory subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8K × 16 = 128 Kbit; supports 16-bit parallel data paths on both ports independently |
| Access Time | 20 ns (max); guarantees deterministic latency for real-time control loops and DSP buffering |
| Supply Voltage | 5.0 V ±10%; compatible with legacy TTL and 5 V microcontroller buses without level shifting |
| Standby Current | 1 mA (typ); enables low-power operation during idle cycles while retaining full data integrity |
| Temperature Range | –40°C to +85°C; qualified for industrial-grade embedded applications including motor drives and test equipment |
| Data Retention | 2 V minimum; maintains stored contents during brown-out or backup battery operation |
| Package | 100-pin TQFP (PNG100); surface-mount compatible with automated PCB assembly and thermal management |
Pinout & Package
7025L20PFGI8 is housed in a 100-pin Thin Quad Flatpack (TQFP), package code PNG100, measuring 14 mm × 14 mm × 1.4 mm. Pin assignments follow standard dual-port RAM topology with mirrored left/right I/O, address, and control banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L / A0R–A12R | Address Inputs (Left/Right) | 13-bit address per port; selects one of 8K locations independently on each side |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data Bus (Left/Right) | 16-bit parallel data path per port; supports simultaneous read/write across ports |
| CEL / CER | Chip Enable (Left/Right) | Active-low enable per port; allows independent power gating and port isolation |
| R/WL / R/WR | Read/Write Control (Left/Right) | Determines direction of data transfer on respective I/O bus; synchronous with CE and OE |
| OEL / OER | Output Enable (Left/Right) | Tri-states outputs when high; enables shared bus architectures with external bus controllers |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select | Enables byte-level write masking; essential for multiplexed bus compatibility and partial writes |
| SEML / SEMR | Semaphore Enable | Activates on-chip semaphore register access (8 flags) using A0–A2 and I/O0–I/O15 |
| INTL / INTR, BUSYL / BUSYR | Interrupt & Busy Flags | Hardware signaling for inter-port synchronization; BUSY asserts during address contention |
| M/S | Master/Slave Select | Configures BUSY as output (master) or input (slave); enables cascaded 32-bit+ memory expansion |
| VCC, GND | Power & Ground | Multiple VCC/GND pins distributed for noise reduction and stable 5 V operation |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables zero-wait-state concurrent read/write access from two independent bus masters without external arbitration logic |
| On-chip semaphore logic | Eight hardware-managed synchronization flags reduce software overhead in multi-processor RTOS environments |
| Full port arbitration with BUSY flag | Hardware-resolved contention detection ensures deterministic behavior during simultaneous access to same address |
| 2 V data retention mode | Preserves memory contents during main power loss using backup battery, critical for fault-tolerant systems |
| Master/Slave cascading support | Allows seamless expansion to 32-bit or wider data buses using multiple devices without glue logic |
Applications
| Radar Signal Processing | Avionics Data Buffering |
|---|---|
|
Use Scenario: Real-time digitized RF sample buffering between ADC front-end and FFT processor. IC Role / Device Role / Timing Role: Dual-port RAM acts as ping-pong buffer: one port accepts streaming ADC data while the other feeds processed samples to DMA engine. Use Value: 20 ns access time ensures no pipeline stall; BUSY flag prevents overwrites during FFT computation; 128 Kbit capacity supports ≥2 ms of 100 MSPS sampling. |
Use Scenario: Shared memory between flight control computer (FCC) and display management unit (DMU) in integrated modular avionics (IMA). IC Role / Device Role / Timing Role: Serves as deterministic inter-processor communication channel with hardware semaphore support for task synchronization. Use Value: Industrial temp rating (–40°C to +85°C) meets DO-160 environmental requirements; M/S pin enables redundant memory mirroring across dual FCC channels. |
| Industrial Motor Drive Controller | Test Equipment Pattern Memory |
|
Use Scenario: Storing PWM lookup tables and real-time sensor fusion results in servo drive firmware. IC Role / Device Role / Timing Role: Left port updated by ARM Cortex-M7 core; right port read by FPGA-based PWM generator at fixed 200 kHz rate. Use Value: 1 mA standby current extends runtime during safe-torque-off (STO) states; 5 V compatibility eliminates level-shifter BOM cost. |
Use Scenario: High-speed pattern storage in automated test equipment (ATE) for semiconductor wafer probing. IC Role / Device Role / Timing Role: Stores stimulus/response vectors accessed simultaneously by pattern generator and comparator logic. Use Value: 20 ns access time supports >40 MHz pattern rates; TQFP package enables dense PCB layout for multi-channel ATE modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-20VXI | 20 ns access, 8K × 16, but uses 5 V only and lacks M/S cascading; no built-in semaphore logic | Requires external arbitration logic for multi-device expansion; limited to single-master systems | Choose when system scale is fixed at one device and cost sensitivity outweighs expandability needs |
| IS61LV51216AL-20TQLI | 20 ns, 32K × 16, 3.3 V supply; no BUSY/INT flags or hardware semaphore support | Higher density but incompatible voltage domain; requires level shifters and external sync primitives | Prefer for new 3.3 V designs needing larger memory; avoid if 5 V interface or hardware sync is required |
Compared with CY7C136-20VXI and IS61LV51216AL-20TQLI, the 7025L20PFGI8 uniquely integrates port arbitration, semaphore registers, and master/slave expansion - eliminating discrete logic and reducing PCB area in deterministic real-time systems.
Availability
7025L20PFGI8 is available at Aetrix Electronics and suitable for radar signal processing, avionics data buffering, and industrial motor drive controller applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 7025L20PFGI8 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 high-performance timing, memory, and interface solutions, now part of Renesas Electronics.
The IDT7025 product line delivers true dual-port SRAMs optimized for deterministic inter-processor communication in real-time embedded systems, with emphasis on hardware arbitration, low-latency access, and industrial reliability.
FAQ
What is the operating voltage range for the 7025L20PFGI8?
The 7025L20PFGI8 operates from 4.5 V to 5.5 V (5.0 V ±10%), as specified in DC Electrical Characteristics Table 6. This 5 V TTL-compatible supply eliminates need for voltage translation in legacy microcontroller or FPGA designs. Operation below 4.5 V is not guaranteed, and data retention is supported down to 2.0 V only in standby mode.
Does the 7025L20PFGI8 support simultaneous read operations from both ports to the same memory address?
Yes, the 7025L20PFGI8 supports true simultaneous reads from both ports to the same memory location - a core feature of its dual-port architecture. This capability is explicitly stated in the Features section and verified in Functional Block Diagram and Truth Table I. No arbitration delay or BUSY assertion occurs during concurrent reads.
How does the M/S pin affect BUSY signal behavior on the 7025L20PFGI8?
When M/S = H (high), the 7025L20PFGI8 configures as Master: BUSYL and BUSYR become output signals that assert during port contention. When M/S = L (low), it configures as Slave: BUSYL and BUSYR become inputs, allowing external BUSY control from a master device - enabling hierarchical arbitration in multi-chip memory systems.
What is the purpose of the semaphore function in the 7025L20PFGI8?
The 7025L20PFGI8 includes eight on-chip semaphore flags accessible via A0–A2 addressing and I/O0–I/O15 data lines. These hardware-managed flags provide atomic test-and-set operations for inter-processor synchronization, eliminating software race conditions in RTOS-based multi-core systems without requiring additional semaphores or external logic.
Is the 7025L20PFGI8 pin-compatible with other members of the IDT7025 family?
Yes, the 7025L20PFGI8 shares identical pinout and footprint with all IDT7025 variants in the 100-pin TQFP (PNG100) package, including speed grades (e.g., 7025L25PFGI8) and power variants (7025S20PFGI8). Differences are limited to internal timing and power characteristics - enabling drop-in replacement within same speed/temperature grade.
7025L20PFGI8 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:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
7025L20PFGI8 FAQ
1.How can I place an order for 7025L20PFGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7025L20PFGI8 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 7025L20PFGI8 reliable?
The price and inventory of 7025L20PFGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7025L20PFGI8 is usually 5 days.
3.What payment methods are accepted for 7025L20PFGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7025L20PFGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7025L20PFGI8?
7025L20PFGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7025L20PFGI8 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 7025L20PFGI8?
For technical support, including 7025L20PFGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7025L20PFGI8 requirements.
6.How does Aetrix verify that 7025L20PFGI8 is sourced from the original manufacturer or authorized distributors?
All 7025L20PFGI8 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 7025L20PFGI8 meets industry standards.
7.What is the process for return or replacement of 7025L20PFGI8?
All 7025L20PFGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7025L20PFGI8, 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 7025L20PFGI8 part is unused and in its original packaging.
Return procedure for 7025L20PFGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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