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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 7007L25PFI8

Name: 7007L25PFI8
Brand: Renesas
SKU: 7007L25PFI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7007L25PFI8

Manufacturer:: Renesas

Category:: Memory

Package:: 80-LQFP

Datasheet:: 7007L25PFI8.pdf

Description:: IC SRAM 256KBIT PARALLEL 80TQFP

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Product details

Overview

IDT7007L25PFI8 from IDT (now Renesas) is a high-speed 32K × 8 dual-port static RAM with true independent left/right ports, 25 ns max access time, industrial temperature range (–40°C to +85°C), and TTL-compatible 5 V ±10% operation - used in real-time inter-processor communication, shared memory systems, and embedded control architectures requiring concurrent read/write access without arbitration logic.

For engineers reviewing the IDT7007L25PFI8 datasheet, IDT7007L25PFI8 pinout, IDT7007L25PFI8 application, or IDT7007L25PFI8 equivalent, key selection criteria include BUSY/INT flag timing, M/S master/slave configuration, semaphore support for resource locking, and dual-port power-down behavior under CE control.

Technical Context

The IDT7007L25PFI8 implements fully asynchronous dual-port architecture with separate address, data, and control buses per port - enabling simultaneous reads of identical memory locations. Its on-chip arbitration logic resolves contention via BUSY flag assertion and supports both CE-controlled and address-match-based arbitration modes.

It integrates full hardware semaphore signaling (8 flags, addressed by A0–A2), interrupt generation (INTL/INTR triggered at fixed addresses 7FFE_H/7FFF_H), and push-pull BUSY outputs - eliminating need for external logic in multi-CPU or DSP/FPGA co-processing systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	32K × 8 bits (256 Kbit), two independent addressable ports
Access Time (tAA)	25 ns max - guarantees deterministic latency for real-time deterministic response in control loops
Operating Voltage	5.0 V ±10% - compatible with legacy 5 V TTL logic families without level shifting
Temperature Range	–40°C to +85°C - qualified for industrial embedded environments including motor drives and PLCs
Power Consumption	Active: 850 mW typ.; Standby: 1 mW typ. - enables low-power idle states during inter-processor synchronization
Package	80-pin TQFP (14 mm × 14 mm × 1.4 mm) - surface-mount compatible with automated PCB assembly
Bus Interface	TTL-compatible inputs/outputs - direct interfacing with microcontrollers, FPGAs, and DSPs without buffers

Pinout & Package

Package: 80-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant, green part (Pb-free).

Pin/Terminal	Circuit Role	Design Meaning
A0L–A14L	Left port address inputs	15-bit address bus for left-side memory access (32K = 2¹⁵)
A0R–A14R	Right port address inputs	Independent 15-bit address bus for right-side access - enables true parallel addressing
I/O0L–I/O7L	Left port bidirectional data	8-bit data path; tri-stated when OEL = HIGH or CEL = HIGH
I/O0R–I/O7R	Right port bidirectional data	8-bit data path; isolated from left port - no bus contention
CEL / CER	Chip enable (left/right)	Active-low enables respective port; controls automatic power-down when deasserted
R/WL / R/WR	Read/write control (left/right)	Active-low write enable; HIGH = read, LOW = write - defines direction per port
OEL / OER	Output enable (left/right)	Active-low enables I/O drivers; allows output disable while port remains selected
SEML / SEMR	Semaphore enable (left/right)	Active-low selects semaphore register bank (A0–A2) instead of RAM array
INTL / INTR	Interrupt flag outputs	Open-drain capable (push-pull per datasheet); asserted on mailbox writes (7FFE_H/7FFF_H)
BUSYL / BUSYR	Busy flag (input/output)	Push-pull; output when M/S = HIGH (master), input when M/S = LOW (slave) - controls write blocking
M/S	Master/Slave select	HIGH configures as master (BUSY outputs); LOW configures as slave (BUSY inputs)
VCC / GND	Power supply	Multiple VCC/GND pins distributed across package - ensures stable rail delivery and noise immunity

Key Features

Feature	Design Value
True dual-port memory cells	Enables simultaneous read of same location from both ports - critical for lock-free data sharing in real-time OS messaging
On-chip port arbitration logic	Resolves address/contention conflicts automatically using BUSY flag - eliminates need for external priority encoder or glue logic
Full semaphore signaling support	Eight hardware semaphores (A0–A2 addressable) accessible via dedicated SEM pins - enables atomic resource locking between processors
Interrupt mailbox addressing	Dedicated INTL/INTR flags triggered at fixed SRAM addresses (7FFE_H/7FFF_H) - provides zero-latency inter-processor notification without polling
Automatic CE-controlled power-down	Each port independently enters ultra-low standby (1 mW typ.) when CE = HIGH - reduces system power in multi-port idle states

Applications

Industrial PLC Communication	DSP-FPGA Co-Processing
Use Scenario: Two independent PLC CPUs share status registers and I/O mapping tables via common memory. IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized message buffer with BUSY arbitration preventing write collisions during scan-cycle handshaking. Use Value: Eliminates software mutex overhead and guarantees sub-25 ns memory access consistency across redundant controllers.	Use Scenario: FPGA handles real-time signal acquisition while DSP performs FFT analysis; both require low-latency access to shared coefficient and sample buffers. IC Role / Device Role / Timing Role: IDT7007L25PFI8 serves as zero-wait-state shared memory with semaphore-controlled resource allocation between processing domains. Use Value: Enables deterministic 25 ns memory access for both domains - avoids pipeline stalls and maintains real-time throughput.
Multi-Core Microcontroller Interconnect	Avionics Data Concentrator
Use Scenario: Dual-core ARM Cortex-M7 shares sensor fusion results and control commands between cores without cache coherency complexity. IC Role / Device Role / Timing Role: Acts as cache-coherent bypass memory with INTL/INTR flags signaling data readiness between cores. Use Value: Provides guaranteed 25 ns access and hardware interrupt signaling - replaces software polling and reduces inter-core latency by >90%.	Use Scenario: ARINC 429 receiver and MIL-STD-1553B controller exchange telemetry packets in airborne flight control unit. IC Role / Device Role / Timing Role: Serves as fault-tolerant shared memory with BUSY arbitration ensuring deterministic packet handoff under EMI stress. Use Value: Industrial temp rating (–40°C to +85°C) and 5 V tolerance ensure reliability in avionics power environments; 25 ns access meets DO-254 timing budgets.

Industrial PLC Communication

DSP-FPGA Co-Processing

Use Scenario: Two independent PLC CPUs share status registers and I/O mapping tables via common memory.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized message buffer with BUSY arbitration preventing write collisions during scan-cycle handshaking.

Use Value: Eliminates software mutex overhead and guarantees sub-25 ns memory access consistency across redundant controllers.

Use Scenario: FPGA handles real-time signal acquisition while DSP performs FFT analysis; both require low-latency access to shared coefficient and sample buffers.

IC Role / Device Role / Timing Role: IDT7007L25PFI8 serves as zero-wait-state shared memory with semaphore-controlled resource allocation between processing domains.

Use Value: Enables deterministic 25 ns memory access for both domains - avoids pipeline stalls and maintains real-time throughput.

Multi-Core Microcontroller Interconnect

Avionics Data Concentrator

Use Scenario: Dual-core ARM Cortex-M7 shares sensor fusion results and control commands between cores without cache coherency complexity.

IC Role / Device Role / Timing Role: Acts as cache-coherent bypass memory with INTL/INTR flags signaling data readiness between cores.

Use Value: Provides guaranteed 25 ns access and hardware interrupt signaling - replaces software polling and reduces inter-core latency by >90%.

Use Scenario: ARINC 429 receiver and MIL-STD-1553B controller exchange telemetry packets in airborne flight control unit.

IC Role / Device Role / Timing Role: Serves as fault-tolerant shared memory with BUSY arbitration ensuring deterministic packet handoff under EMI stress.

Use Value: Industrial temp rating (–40°C to +85°C) and 5 V tolerance ensure reliability in avionics power environments; 25 ns access meets DO-254 timing budgets.

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-25AXC	25 ns access, 32K × 8, 80-pin TQFP, but requires 3.3 V supply and has different BUSY timing (tBDD = 35 ns vs. 30 ns)	Not suitable for 5 V legacy systems; lacks M/S pin - uses external arbitration logic	Select only if migrating to 3.3 V architecture and redesigning arbitration circuitry.
IS61LV5128-25KLI	25 ns access, 64K × 8, 5 V, but single-port only - no native BUSY/INT/SEM hardware	Requires external dual-port interface logic (e.g., FPGA gateware) to emulate arbitration and semaphore functions	Choose only when memory density >32K is required and custom logic can implement missing features.

Compared with CY7C028V-25AXC and IS61LV5128-25KLI, the IDT7007L25PFI8 uniquely delivers native 5 V dual-port operation with integrated BUSY arbitration, semaphore, and interrupt logic - reducing BOM count and PCB area in safety-critical industrial and avionics designs.

Availability

IDT7007L25PFI8 is available at Aetrix Electronics and suitable for industrial PLCs, avionics data concentrators, and DSP-FPGA co-processing systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for IDT7007L25PFI8 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

Renesas Electronics (formerly Integrated Device Technology) is a global semiconductor leader specializing in high-performance memory, timing, and interface solutions for industrial, automotive, and communications infrastructure.

The IDT7007 family was designed specifically for deterministic inter-processor communication - delivering true dual-port SRAM with hardware arbitration, semaphore, and interrupt capabilities to eliminate software bottlenecks in real-time embedded systems.

FAQ

What is the maximum operating temperature range for the IDT7007L25PFI8?

The IDT7007L25PFI8 is rated for industrial temperature operation from –40°C to +85°C, verified per manufacturer specifications and qualified for use in motor drives, programmable logic controllers, and outdoor industrial equipment where ambient thermal stability is critical. This range is explicitly confirmed in the "Recommended DC Operating Conditions" table of the official datasheet.

Does the IDT7007L25PFI8 support true simultaneous read operations from both ports?

Yes, the IDT7007L25PFI8 implements true dual-port memory cells that allow concurrent reads of the same memory location from left and right ports without conflict or timing penalty - a core architectural feature confirmed in the "Features" section and functional block diagram of the datasheet.

How does the M/S pin affect BUSY pin functionality on the IDT7007L25PFI8?

When M/S = HIGH, BUSYL and BUSYR operate as push-pull outputs indicating port contention; when M/S = LOW, they become inputs that inhibit writes on the respective port. This master/slave configuration is mandatory for cascaded systems and is defined in the "Pin Names" table and truth tables of the IDT7007L25PFI8 datasheet.

What are the valid semaphore address ranges for the IDT7007L25PFI8?

The IDT7007L25PFI8 implements eight hardware semaphore flags addressed exclusively by A0–A2 (i.e., addresses 000₂–111₂), accessed only when SEM = LOW and CE = HIGH. This behavior is documented in Truth Table II and the "Functional Description" section of the official datasheet.

Is the IDT7007L25PFI8 pin-compatible with other speed grades in the IDT7007L family?

Yes - all IDT7007L variants (e.g., IDT7007L15, IDT7007L20, IDT7007L25, IDT7007L35) share identical 80-pin TQFP packaging, pinout, and electrical interface; only access time and power parameters differ. This compatibility is confirmed in the "Pin Configurations" section and ordering information tables of the datasheet.

7007L25PFI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 80-LQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Asynchronous

Memory Size:: 256Kbit

Memory Organization:: 32K x 8

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 25ns

Access Time:: 25 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 80-TQFP (14x14)

7007L25PFI8 FAQ

1.How can I place an order for 7007L25PFI8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7007L25PFI8 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 7007L25PFI8 reliable?

The price and inventory of 7007L25PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7007L25PFI8 is usually 5 days.

3.What payment methods are accepted for 7007L25PFI8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7007L25PFI8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7007L25PFI8?

7007L25PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7007L25PFI8 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 7007L25PFI8?

For technical support, including 7007L25PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7007L25PFI8 requirements.

6.How does Aetrix verify that 7007L25PFI8 is sourced from the original manufacturer or authorized distributors?

All 7007L25PFI8 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 7007L25PFI8 meets industry standards.

7.What is the process for return or replacement of 7007L25PFI8?

All 7007L25PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7007L25PFI8, 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 7007L25PFI8 part is unused and in its original packaging.

Return procedure for 7007L25PFI8:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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