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Renesas 70V25L15PF8
- Part No.:
- 70V25L15PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V25L15PF8.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,238
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Product details
Overview
IDT70V25L15PF8 from Integrated Device Technology is a high-speed 4K x 16 true dual-port static RAM with independent left/right asynchronous ports, 15 ns maximum access time (commercial grade), 3.3 V single-supply operation, and on-chip semaphore arbitration logic - used in real-time DSP inter-processor communication, FPGA co-processor buffering, and industrial motion controller memory sharing.
For engineers reviewing the IDT70V25L15PF8 datasheet, IDT70V25L15PF8 pinout, IDT70V25L15PF8 application, or IDT70V25L15PF8 equivalent, key selection criteria include dual-port bus contention resolution, byte-selectable I/O control, low-power standby (660 µW typ.), and TQFP-100 packaging for high-density PCB layouts.
Technical Context
The IDT70V25L15PF8 implements fully asynchronous dual-port architecture with separate address, data, and control buses per port, enabling simultaneous read/write to the same memory location without external arbitration. It supports master/slave cascading via M/S pin for 32-bit+ bus expansion and integrates hardware semaphore flags (A0–A2 addressed) for inter-port synchronization.
It uses CMOS process technology optimized for 3.3 V operation, features LVTTL-compatible I/Os, and includes automatic power-down when CE is deasserted. The device operates across commercial temperature range (0°C to +70°C) and meets green packaging requirements per ordering information.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K x 16 (64 Kbit), true dual-port SRAM with independent left/right access paths |
| Access Time (tAA) | 15 ns max - guarantees sub-67 MHz read cycle timing for real-time control loops |
| Supply Voltage | 3.3 V ±0.3 V - compatible with modern low-voltage digital systems without level-shifting |
| Standby Current | 660 µW typ. - enables ultra-low-power hold mode during processor idle states |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade embedded systems and test equipment |
| I/O Interface | LVTTL-compatible - direct interfacing with FPGAs, DSPs, and microcontrollers at 3.3 V logic levels |
| Arbitration Logic | On-chip BUSY flag and semaphore signaling - eliminates need for external glue logic in multi-master designs |
Pinout & Package
Package: 100-pin TQFP (PNG100), 14 mm × 14 mm × 1.4 mm body, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access (4K depth) |
| A0R–A11R | Right port address inputs | 12-bit address bus for right-side memory access - fully independent of left port |
| I/O0L–I/O7L, I/O8L–I/O15L | Left port bidirectional data | Lower/upper byte-selectable 16-bit data path; controlled by LBL/UBL |
| I/O0R–I/O7R, I/O8R–I/O15R | Right port bidirectional data | Lower/upper byte-selectable 16-bit data path; controlled by LBR/UBR |
| CEL, CER | Chip enable (left/right) | Independent port enable - allows one port active while other enters standby |
| OEL, OER | Output enable (left/right) | Controls output drivers only; does not affect internal memory state |
| R/WL, R/WR | Read/write control (left/right) | Active-low signals defining direction of data transfer per port |
| UBL, UBR | Upper byte select | Enables I/O8–I/O15 on respective port; used for 8-bit sub-word access |
| LBL, LBR | Lower byte select | Enables I/O0–I/O7 on respective port; enables partial-word writes |
| SEML, SEMR | Semaphore enable | Activates hardware semaphore register access (A0–A2) for inter-port coordination |
| BUSYL, BUSYR | Busy flag (input/output) | Configurable as input (slave) or output (master) for port contention detection |
| INTL, INTR | Interrupt flag | Open-drain push-pull outputs signaling semaphore or write completion events |
| M/S | Master/slave select | Defines BUSY pin behavior: VIH = master (output), VIL = slave (input) |
| VDD, VSS | Power and ground | Multiple dedicated pins ensure stable 3.3 V supply and low-noise grounding |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads/writes to identical addresses - critical for lock-free inter-processor messaging |
| Separate upper/lower byte control | Supports multiplexed bus compatibility and partial-word transfers without read-modify-write overhead |
| Full on-chip semaphore logic | Eight hardware semaphore flags accessible via A0–A2 - eliminates software polling and reduces CPU load |
| Master/slave cascading support | Allows stacking multiple IDT70V25L15PF8 devices to build 32-bit or wider memory systems without external logic |
| Low-power standby mode | 660 µW typical consumption - extends battery life in portable instrumentation and edge nodes |
Applications
| Real-Time DSP Co-Processing | FPGA-Based Motion Control |
|---|---|
Use Scenario: Two DSPs share sensor fusion data and control command buffers in closed-loop motor drives. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory between primary and secondary DSP cores. Use Value: 15 ns access time ensures deterministic response within 15 µs control cycles; semaphore flags prevent race conditions during parameter updates. | Use Scenario: FPGA executes trajectory planning while microcontroller handles safety monitoring and I/O management. IC Role / Device Role / Timing Role: IDT70V25L15PF8 serves as synchronized command queue and status register bank between FPGA and MCU. Use Value: Independent left/right ports eliminate bus arbitration delays; byte-select enables efficient status bit updates without full-word writes. |
| Industrial PLC Backplane Buffer | Test Equipment Data Capture |
Use Scenario: Modular PLC rack requires high-throughput data exchange between CPU module and I/O modules over parallel backplane. IC Role / Device Role / Timing Role: Acts as dual-ported FIFO buffer between backplane bus controller and local processing unit. Use Value: TQFP-100 package fits dense backplane layouts; 3.3 V LVTTL I/O matches modern ASIC interface standards. | Use Scenario: High-speed oscilloscope captures analog samples into memory while host processor streams data to PC. IC Role / Device Role / Timing Role: Provides concurrent acquisition (one port) and readout (other port) without pipeline stalls. Use Value: Asynchronous operation prevents dead time between capture and transfer; 64 Kbit capacity supports multi-segment waveform storage. |
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-15AXC | 4K x 16, 15 ns, 3.3 V, but uses different pinout and lacks integrated semaphore logic | Requires external arbitration logic for semaphore use; suitable where only basic dual-port access is needed | Select when cost sensitivity outweighs need for hardware semaphores and board space permits discrete logic |
| AS7C3256B-15JC | 32K x 8, 15 ns, 3.3 V, single-port architecture with optional dual-port variant (AS7C3256B-15JCI) requiring external arbitration | Higher density but not true dual-port; no native BUSY/SEM support - limits real-time inter-processor use cases | Choose only if memory size is primary constraint and software-managed synchronization is acceptable |
Compared with CY7C024AV-15AXC and AS7C3256B-15JC, the IDT70V25L15PF8 delivers integrated hardware semaphore and BUSY arbitration - reducing BOM count, PCB area, and firmware complexity in tightly coupled multi-processor systems.
Availability
IDT70V25L15PF8 is available at Aetrix Electronics and suitable for real-time DSP co-processing, FPGA-based motion control, and industrial PLC backplane buffering requiring stable component supply and long-term production continuity.
Supply support for IDT70V25L15PF8 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), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance silicon solutions.
The IDT70V25 family targets high-speed embedded systems requiring deterministic memory access between heterogeneous processors - designed specifically for DSP-FPGA, MCU-DSP, and multi-core controller architectures.
FAQ
What is the maximum operating frequency supported by the IDT70V25L15PF8?
The IDT70V25L15PF8 has a 15 ns maximum access time (tAA), supporting up to 67 MHz read cycles under commercial conditions. Its asynchronous dual-port design means no clock is required - timing is governed by setup/hold and access specifications rather than a fixed clock frequency. This makes it ideal for systems where deterministic latency matters more than synchronous throughput.
Does the IDT70V25L15PF8 support both commercial and industrial temperature ranges?
The IDT70V25L15PF8 is specified for commercial temperature range only (0°C to +70°C). Industrial-grade variants exist in the same family (e.g., IDT70V25L20PF8), but this specific part number - IDT70V25L15PF8 - is rated exclusively for commercial operation per its datasheet revision DSC-5624/10.
How does the semaphore functionality work on the IDT70V25L15PF8?
The IDT70V25L15PF8 provides eight hardware semaphore flags accessed via A0–A2 address lines when SEM is low and CE/UB/LB are high. Each flag can be written via I/O0 and read across all I/O pins (I/O0–I/O15). This enables atomic lock/unlock operations between ports without software intervention - critical for preventing data corruption in multi-processor environments.
Can the IDT70V25L15PF8 be used in a master/slave configuration with other dual-port SRAMs?
Yes - the IDT70V25L15PF8 supports master/slave cascading using the M/S pin. When M/S = VIH, BUSY is an output indicating port contention; when M/S = VIL, BUSY becomes an input for slave synchronization. This allows multiple IDT70V25L15PF8 devices to be stacked for wider data buses (e.g., 32-bit) with automatic arbitration and no external logic.
What is the power consumption profile of the IDT70V25L15PF8 in active and standby modes?
In active mode, the IDT70V25L15PF8 consumes 400 mW typical (120 mA at 3.3 V). In full standby (CE high, CMOS-level inputs), it draws just 660 µW typical - achieved by powering down internal circuitry while retaining memory state. This ultra-low standby current supports energy-sensitive applications like portable test gear and battery-backed controllers.
70V25L15PF8 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:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
70V25L15PF8 FAQ
1.How can I place an order for 70V25L15PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V25L15PF8 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 70V25L15PF8 reliable?
The price and inventory of 70V25L15PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V25L15PF8 is usually 5 days.
3.What payment methods are accepted for 70V25L15PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V25L15PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V25L15PF8?
70V25L15PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V25L15PF8 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 70V25L15PF8?
For technical support, including 70V25L15PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V25L15PF8 requirements.
6.How does Aetrix verify that 70V25L15PF8 is sourced from the original manufacturer or authorized distributors?
All 70V25L15PF8 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 70V25L15PF8 meets industry standards.
7.What is the process for return or replacement of 70V25L15PF8?
All 70V25L15PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V25L15PF8, 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 70V25L15PF8 part is unused and in its original packaging.
Return procedure for 70V25L15PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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