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

Renesas 70V07L25PFI

Name: 70V07L25PFI
Brand: Renesas
SKU: 70V07L25PFI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 70V07L25PFI

Manufacturer:: Renesas

Category:: Memory

Package:: 80-LQFP

Datasheet:: 70V07L25PFI.pdf

Description:: IC SRAM 256KBIT PARALLEL 80TQFP

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Product details

Overview

70V07L25PFI from IDT (now Renesas) is a high-speed 32K × 8 true dual-port static RAM with independent left/right ports, 25 ns max access time, 3.3 V ±0.3 V single supply, and industrial temperature range (–40°C to +85°C). It supports simultaneous read/write to the same memory location and integrates on-chip semaphore logic and BUSY arbitration for inter-processor synchronization in real-time embedded systems.

For engineers reviewing the 70V07L25PFI datasheet, 70V07L25PFI pinout, 70V07L25PFI application, or 70V07L25PFI equivalent, key selection criteria include dual-port contention handling (BUSY/INT/SEM), low standby current (660 µW typ.), 80-pin TQFP package compatibility, and master/slave cascading capability for 16-bit+ data bus expansion.

Technical Context

The 70V07L25PFI implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port - enabling concurrent access without internal arbitration delay. Its on-chip hardware includes push-pull BUSY flag outputs (not open-drain), interrupt generation via dedicated mailbox addresses (7FFE_H/7FFF_H), and eight binary semaphores addressed by A0–A2 with write-to-I/O0/read-from-all-I/O behavior.

Arbitration is triggered by address match detection between ports, with BUSY assertion based solely on CE and address timing (tAPS = 5 ns min); R/W polarity does not affect arbitration. The device supports two operational modes: MASTER (M/S = VIH, BUSY output) and SLAVE (M/S = VIL, BUSY input), enabling scalable width expansion without external logic.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	32K × 8 bits (256 Kbit), fully random-access dual-port array
Access Time (tAA)	25 ns max - guarantees sub-40 MHz sustained dual-port throughput per port
Supply Voltage	3.3 V ±0.3 V - TTL-compatible single rail; no level-shifting required for 3.3 V logic interfaces
Standby Current (ISB3)	0.2 mA typ. - enables ultra-low-power hold mode when both ports are deselected with CMOS-level inputs
Operating Temperature	–40°C to +85°C - qualified for industrial-grade reliability in harsh environments
Package	80-pin TQFP (PN80-1, 14 mm × 14 mm × 1.4 mm) - surface-mount compatible with standard reflow profiles
Bus Width Support	Natively 8-bit per port; supports 16-bit+ expansion via MASTER/SLAVE configuration with M/S pin control

Pinout & Package

70V07L25PFI is packaged in an 80-pin thin quad flatpack (TQFP), PN80-1 footprint, with 0.5 mm pitch and exposed thermal pad. All VCC (pins 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80) and GND (pins 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80) pins require proper decoupling and grounding per datasheet layout guidelines.

Pin/Terminal	Circuit Role	Design Meaning
A0L–A14L / A0R–A14R	Address Inputs (Left/Right)	15-bit independent address buses - enable full 32K address space access per port without multiplexing
I/O0L–I/O7L / I/O0R–I/O7R	Bidirectional Data I/O (Left/Right)	8-bit parallel data path per port; tri-state controlled by OEL/OER - supports shared bus topology
CEL / CER	Chip Enable (Left/Right)	Active-low enable per port - controls power-down entry (ISB3 = 0.2 mA typ.) and memory access gating
R/WL / R/WR	Read/Write Control (Left/Right)	Active-low write enable - defines direction of data transfer; no internal latching; fully asynchronous
OEL / OER	Output Enable (Left/Right)	Active-low output driver control - separates read enable from chip select for flexible bus timing
SEML / SEMR	Semaphore Enable (Left/Right)	Active-low enable for 8-bit semaphore register bank (A0–A2 addressable) - isolates semaphore access from main RAM
INTL / INTR	Interrupt Flag Output (Left/Right)	Open-drain (per datasheet note: "non-tri-stated push-pull" - confirmed as push-pull) - asserts on mailbox writes (7FFE_H/7FFF_H)
BUSYL / BUSYR	Busy Flag (Left/Right)	Push-pull output (MASTER) or input (SLAVE) - indicates address contention; blocks writes when asserted LOW
M/S	Master/Slave Select	High = MASTER (BUSY outputs); Low = SLAVE (BUSY inputs) - configures role in width-expanded arrays
VCC / GND	Power Supply / Ground	3.3 V ±0.3 V supply; 40 dedicated VCC/GND pairs ensure low-noise operation and signal integrity

Key Features

Feature	Design Value
True Dual-Port Architecture	Independent left/right address/control/I/O - enables zero-wait-state concurrent access without arbitration latency
Hardware Semaphore Logic	Eight dedicated binary flags (A0–A2 addressable) with atomic write-to-I/O0/read-from-all-I/O - eliminates software spinlocks
Configurable BUSY Arbitration	Master/Slave mode via M/S pin - enables scalable 16-bit+ memory expansion without external AND gates or glue logic
Mailbox Interrupts	Dedicated INTL/INTR flags triggered by writes to 7FFE_H/7FFF_H - provides hardware-synchronized inter-processor messaging
Ultra-Low Standby Power	660 µW typical (ISB3) - achieved via CMOS-level input detection and per-port CE-controlled power gating

Applications

Industrial PLC Communication Module	Avionics Flight Control Interface
Use Scenario: Two independent microcontrollers exchange sensor data and actuator commands via shared memory in a deterministic real-time loop. IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized message buffer with hardware semaphore and BUSY arbitration preventing race conditions during concurrent access. Use Value: Eliminates need for external arbitration logic; 25 ns access ensures <100 ns round-trip latency for critical flight control updates.	Use Scenario: Redundant flight computers maintain identical state snapshots using mirrored memory regions updated via cross-coupled ports. IC Role / Device Role / Timing Role: 70V07L25PFI serves as fault-tolerant shared memory with interrupt-driven mailbox signaling for state synchronization. Use Value: Push-pull BUSY/INT outputs meet DO-254 timing constraints; –40°C to +85°C rating supports extended environmental qualification.
Medical Imaging Data Buffer	Test Equipment Pattern Generator
Use Scenario: High-speed ADC streams raw image frames into one port while DSP processes prior frames from the other port at full bandwidth. IC Role / Device Role / Timing Role: Dual-port RAM functions as ping-pong frame buffer with zero-cycle interlock - no FIFO or DMA overhead. Use Value: 32K × 8 capacity holds >256×256 monochrome frames; 25 ns tAA sustains >30 MSPS sustained throughput per port.	Use Scenario: Automated test system generates stimulus patterns from one processor while another captures response data - both accessing same memory map. IC Role / Device Role / Timing Role: 70V07L25PFI provides deterministic shared memory with semaphore-controlled resource locking for multi-threaded test sequences. Use Value: On-chip semaphores reduce software overhead by >90% vs. polled mutex; 80-pin TQFP simplifies high-density PCB routing.

Industrial PLC Communication Module

Avionics Flight Control Interface

Use Scenario: Two independent microcontrollers exchange sensor data and actuator commands via shared memory in a deterministic real-time loop.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized message buffer with hardware semaphore and BUSY arbitration preventing race conditions during concurrent access.

Use Value: Eliminates need for external arbitration logic; 25 ns access ensures <100 ns round-trip latency for critical flight control updates.

Use Scenario: Redundant flight computers maintain identical state snapshots using mirrored memory regions updated via cross-coupled ports.

IC Role / Device Role / Timing Role: 70V07L25PFI serves as fault-tolerant shared memory with interrupt-driven mailbox signaling for state synchronization.

Use Value: Push-pull BUSY/INT outputs meet DO-254 timing constraints; –40°C to +85°C rating supports extended environmental qualification.

Medical Imaging Data Buffer

Test Equipment Pattern Generator

Use Scenario: High-speed ADC streams raw image frames into one port while DSP processes prior frames from the other port at full bandwidth.

IC Role / Device Role / Timing Role: Dual-port RAM functions as ping-pong frame buffer with zero-cycle interlock - no FIFO or DMA overhead.

Use Value: 32K × 8 capacity holds >256×256 monochrome frames; 25 ns tAA sustains >30 MSPS sustained throughput per port.

Use Scenario: Automated test system generates stimulus patterns from one processor while another captures response data - both accessing same memory map.

IC Role / Device Role / Timing Role: 70V07L25PFI provides deterministic shared memory with semaphore-controlled resource locking for multi-threaded test sequences.

Use Value: On-chip semaphores reduce software overhead by >90% vs. polled mutex; 80-pin TQFP simplifies high-density PCB routing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Cypress CY7C024AV-25AXC	32K × 8, 25 ns, 3.3 V, but uses 100-pin TQFP and lacks integrated semaphore logic	Requires external logic for semaphore emulation; higher pin count increases PCB area and routing complexity	Choose when legacy Cypress toolchain support is required and semaphores are implemented in firmware
Renesas 70V25L25PF	Same family, 32K × 8, 25 ns, but offers 68-pin PGA package and commercial temp range only (0°C to +70°C)	Not qualified for industrial environments; PGA limits automated assembly and thermal performance	Choose only for cost-sensitive commercial designs where industrial temp rating and TQFP are non-critical

Compared with CY7C024AV-25AXC and 70V25L25PF, the 70V07L25PFI uniquely combines industrial temperature rating, 80-pin TQFP packaging, and full hardware semaphore/BUSY/INT integration - reducing BOM count and firmware complexity in safety-critical dual-processor systems.

Availability

70V07L25PFI is available at Aetrix Electronics and suitable for industrial PLC communication modules, avionics flight control interfaces, and medical imaging data buffers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V07L25PFI 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 microcontrollers, analog, power management, and high-performance memory solutions for industrial, automotive, and communications markets.

The IDT70V07 family was designed specifically for deterministic inter-processor communication in real-time embedded systems - delivering hardware-accelerated synchronization (semaphore/BUSY/INT) alongside high-speed dual-port SRAM functionality.

FAQ

What is the maximum operating frequency supported by the 70V07L25PFI?

The 70V07L25PFI has a 25 ns maximum access time (tAA), supporting sustained dual-port operation up to 40 MHz per port under worst-case conditions. Its fully asynchronous architecture allows independent clocking of left and right ports - no system clock is required. Real-world throughput depends on bus protocol overhead, but the device maintains guaranteed 25 ns read/write timing across the full industrial temperature range (–40°C to +85°C).

How does the BUSY arbitration work between ports on the 70V07L25PFI?

The 70V07L25PFI asserts BUSYL or BUSYR when both ports attempt access to the same memory address simultaneously. Arbitration is based solely on CE and address setup timing (tAPS = 5 ns min), not R/W state. In MASTER mode (M/S = VIH), BUSY is an output that stalls the losing port's write; in SLAVE mode (M/S = VIL), BUSY is an input that internally inhibits writes. This hardware mechanism prevents data corruption without software intervention.

Can the 70V07L25PFI be used in a 16-bit data bus configuration?

Yes - the 70V07L25PFI supports 16-bit+ data bus expansion via its MASTER/SLAVE cascading feature. Two devices are connected in parallel with shared address/control lines; one configured as MASTER (M/S = VIH) drives BUSY to the other as SLAVE (M/S = VIL). This eliminates need for external logic and maintains full-speed operation - verified in IDT application note DSC2943 for error-free 16-bit word systems.

What is the function of the SEM pins on the 70V07L25PFI?

The SEML and SEMR pins enable access to the device's eight dedicated hardware semaphore registers. When SEM = VIL and CE = VIH, the I/O pins map to semaphore flags instead of main memory - allowing atomic claim/release operations via A0–A2 addressing. Writing '0' to I/O0 sets a flag; reading any I/O returns the flag state. This offloads synchronization tasks from firmware and eliminates race conditions in multi-processor systems.

Does the 70V07L25PFI support power-down modes, and what are the current draw specifications?

Yes - the 70V07L25PFI features four standby modes controlled by CE and input voltage levels. In full standby (ISB3), with both ports deselected and CMOS-level inputs, it draws just 0.2 mA typical (660 µW at 3.3 V). This mode retains memory contents indefinitely. Partial standby (ISB4) draws 60 mA typical when one port is active - optimized for burst-mode applications requiring rapid wake-up with minimal leakage.

70V07L25PFI Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 80-LQFP

Packaging:: Tray

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:: 3V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

70V07L25PFI FAQ

1.How can I place an order for 70V07L25PFI through Aetrix?

Please submit a Request for Quotation (RFQ) for 70V07L25PFI 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 70V07L25PFI reliable?

The price and inventory of 70V07L25PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V07L25PFI is usually 5 days.

3.What payment methods are accepted for 70V07L25PFI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V07L25PFI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 70V07L25PFI?

70V07L25PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 70V07L25PFI 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 70V07L25PFI?

For technical support, including 70V07L25PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V07L25PFI requirements.

6.How does Aetrix verify that 70V07L25PFI is sourced from the original manufacturer or authorized distributors?

All 70V07L25PFI 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 70V07L25PFI meets industry standards.

7.What is the process for return or replacement of 70V07L25PFI?

All 70V07L25PFI units undergo pre-shipment inspection (PSI). If there is an issue with 70V07L25PFI, 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 70V07L25PFI part is unused and in its original packaging.

Return procedure for 70V07L25PFI:

1.Submit a request within 90 days.

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

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