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

Renesas 70V07L25PFG8

Name: 70V07L25PFG8
Brand: Renesas
SKU: 70V07L25PFG8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 70V07L25PFG8

Manufacturer:: Renesas

Category:: Memory

Package:: 80-LQFP

Datasheet:: 70V07L25PFG8.pdf

Description:: IC SRAM 256KBIT PARALLEL 80TQFP

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Product details

Overview

70V07L25PFG8 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 single supply, and integrated semaphore/arbiter logic for inter-processor synchronization in real-time embedded systems.

For engineers reviewing the 70V07L25PFG8 datasheet, 70V07L25PFG8 pinout, 70V07L25PFG8 application, or 70V07L25PFG8 equivalent, this page delivers verified specifications, validated package mapping, confirmed pin functions, and two rigorously cross-checked alternative parts - all grounded in the official IDT DSC 2943/11 datasheet and Renesas product documentation.

Technical Context

The 70V07L25PFG8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention via BUSY flag assertion based on chip enable and address match timing, not R/W state.

It integrates eight dedicated semaphore registers (addressed by A0–A2), accessible only when SEM = VIL and CE = VIH, with push-pull INTL/INTR flags and master/slave configuration via M/S pin - enabling deterministic resource sharing between heterogeneous processors 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 full-speed read/write latency at 40 MHz system clock
Supply Voltage	3.3 V ± 0.3 V - TTL-compatible single rail, no level-shifting required
Standby Current (ISB3)	0.2 mA typ - ultra-low power retention mode with CMOS-level inputs
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded deployment
Package	80-pin TQFP (Pb-free, RoHS-compliant, 14 mm × 14 mm body)
Bus Width Support	Expandable to 16+ bits via MASTER/SLAVE cascading with automatic BUSY arbitration

Pinout & Package

70V07L25PFG8 is housed in an 80-pin thin quad flatpack (TQFP) with 0.5 mm pitch, 14 mm × 14 mm footprint, and 1.4 mm height - optimized for high-density PCB layouts in space-constrained industrial controllers and communications modules.

Pin/Terminal	Circuit Role	Design Meaning
CEL / CER	Chip Enable (Left / Right)	Independent port selection; HIGH disables port and enables ultra-low ISB3 standby mode
R/WL / R/WR	Read/Write Control (Left / Right)	Active-low write enable; asserts write cycle when CE and R/W both LOW
OEL / OER	Output Enable (Left / Right)	Tri-states I/O bus independently per port; enables concurrent read/write on same data bus
A0L–A14L / A0R–A14R	Address Inputs (Left / Right)	15-bit addressing per port → 32K locations; supports simultaneous access to different addresses
I/O0L–I/O7L / I/O0R–I/O7R	Data I/O (Left / Right)	Bidirectional 8-bit data path per port; no external transceivers needed for bus sharing
SEML / SEMR	Semaphore Enable (Left / Right)	Activates semaphore register access (A0–A2) when CE = VIH and SEM = VIL
INTL / INTR	Interrupt Flag Output (Left / Right)	Push-pull active-low flags triggered by writes to mailbox addresses 7FFEh (INTL) or 7FFFh (INTR)
BUSYL / BUSYR	Busy Flag (Left / Right)	Push-pull output (MASTER) or input (SLAVE); asserts during address contention to stall conflicting writes
M/S	Master/Slave Select	VIH configures BUSY as output (arbitration source); VIL configures BUSY as input (write-inhibit control)

Key Features

Feature	Design Value
True Dual-Port Architecture	Enables simultaneous, independent read/write to any memory location - no internal arbitration delay
Hardware Semaphore Logic	Eight dedicated binary flags (A0–A2) prevent race conditions between processors without software overhead
On-Chip Arbitration	BUSY flag generation based solely on CE/address timing - eliminates need for external priority encoders
Ultra-Low Standby Power	660 µW typical (ISB3) with CMOS-level inputs - extends battery life in always-on edge nodes
Master/Slave Cascading	Supports seamless 16-bit+ word expansion using single BUSY signal distribution - no glue logic required

Applications

Industrial PLC Controller	Telecom Line Card Buffer
Use Scenario: Real-time I/O scanning and motion control logic executing on dual ARM Cortex-M7 cores sharing sensor/actuator data. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory buffer with hardware semaphore coordination between safety-critical and non-safety partitions. Use Value: Eliminates software mutex polling; 25 ns access ensures deterministic response under 100 µs cycle times.	Use Scenario: High-throughput packet buffering in 10Gbps Ethernet line cards where FPGA and network processor exchange frame metadata. IC Role / Device Role / Timing Role: Serves as low-jitter, contention-free inter-processor mailbox with interrupt-driven notification of new packet arrivals. Use Value: Push-pull INTL/INTR flags reduce interrupt latency to <30 ns; eliminates FIFO synchronization logic.
Radar Signal Processing Module	Avionics Display Interface
Use Scenario: DSP and microcontroller co-processing radar returns while maintaining strict DO-254 timing constraints. IC Role / Device Role / Timing Role: Provides synchronized access to FFT coefficient tables and detection thresholds via BUSY-arbitrated dual-port reads/writes. Use Value: 25 ns tAA and tBDD ≤ 35 ns guarantee pipeline continuity across 50 MHz processing clocks.	Use Scenario: Graphics controller and flight management computer exchanging HUD overlay parameters in certified airborne systems. IC Role / Device Role / Timing Role: Acts as fault-tolerant shared memory with semaphores enforcing mutual exclusion on critical display registers. Use Value: −40°C to +85°C rating and 80-pin TQFP ensure mechanical reliability in vibration-prone avionics enclosures.

Industrial PLC Controller

Telecom Line Card Buffer

Use Scenario: Real-time I/O scanning and motion control logic executing on dual ARM Cortex-M7 cores sharing sensor/actuator data.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory buffer with hardware semaphore coordination between safety-critical and non-safety partitions.

Use Value: Eliminates software mutex polling; 25 ns access ensures deterministic response under 100 µs cycle times.

Use Scenario: High-throughput packet buffering in 10Gbps Ethernet line cards where FPGA and network processor exchange frame metadata.

IC Role / Device Role / Timing Role: Serves as low-jitter, contention-free inter-processor mailbox with interrupt-driven notification of new packet arrivals.

Use Value: Push-pull INTL/INTR flags reduce interrupt latency to <30 ns; eliminates FIFO synchronization logic.

Radar Signal Processing Module

Avionics Display Interface

Use Scenario: DSP and microcontroller co-processing radar returns while maintaining strict DO-254 timing constraints.

IC Role / Device Role / Timing Role: Provides synchronized access to FFT coefficient tables and detection thresholds via BUSY-arbitrated dual-port reads/writes.

Use Value: 25 ns tAA and tBDD ≤ 35 ns guarantee pipeline continuity across 50 MHz processing clocks.

Use Scenario: Graphics controller and flight management computer exchanging HUD overlay parameters in certified airborne systems.

IC Role / Device Role / Timing Role: Acts as fault-tolerant shared memory with semaphores enforcing mutual exclusion on critical display registers.

Use Value: −40°C to +85°C rating and 80-pin TQFP ensure mechanical reliability in vibration-prone avionics enclosures.

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, but uses 5 V supply and lacks integrated semaphore logic	Requires external level shifters and discrete arbitration logic for 3.3 V systems	Select only if legacy 5 V infrastructure mandates compatibility and semaphores are implemented in FPGA
AS7C33256P-25JCIN	25 ns access, 32K × 8, 3.3 V, but no BUSY/INT/SEM pins - pure dual-port without arbitration	Cannot resolve address contention or provide inter-processor signaling without external logic	Choose only for simple ping-pong buffering where deterministic arbitration is handled in software or external ASIC

Compared with CY7C028V-25AXC and AS7C33256P-25JCIN, the 70V07L25PFG8 uniquely integrates hardware semaphore, BUSY arbitration, and interrupt signaling in a single 3.3 V device - reducing BOM count by ≥3 discrete components and eliminating timing-critical external logic design.

Availability

70V07L25PFG8 is available at Aetrix Electronics and suitable for industrial PLC controllers, telecom line card buffers, and avionics display interfaces requiring stable component supply across extended product lifecycles.

Supply support for 70V07L25PFG8 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), now part of Renesas Electronics, is a leader in high-performance memory and interface solutions for real-time embedded systems.

The 70V07L25PFG8 belongs to IDT's high-speed dual-port SRAM family, engineered specifically for deterministic inter-processor communication in industrial automation, aerospace, and telecommunications infrastructure.

FAQ

What is the maximum operating frequency supported by the 70V07L25PFG8?

The 70V07L25PFG8 has a 25 ns maximum access time (tAA), supporting reliable operation up to 40 MHz in read/write cycles. Its tRC (read cycle time) is also rated at 25 ns, confirming full-speed synchronous interfacing with microcontrollers and FPGAs running at ≤40 MHz without wait states. This specification is validated across the full −40°C to +85°C industrial temperature range.

Does the 70V07L25PFG8 require external pull-up resistors on BUSY or INT pins?

No. The 70V07L25PFG8 features push-pull outputs on BUSYL, BUSYR, INTL, and INTR - explicitly stated in Note 2 of the Functional Block Diagram and Truth Table IV. These pins drive actively high or low without external biasing, simplifying layout and eliminating risk of floating states during power-up or reset sequences.

How does the semaphore functionality work on the 70V07L25PFG8?

The 70V07L25PFG8 dedicates eight memory-mapped semaphore flags addressed by A0–A2. Access requires CE = VIH and SEM = VIL (per Truth Table II). Writing "0" to I/O0 claims the flag; reading returns the current token state across all I/O lines. This hardware-enforced mutual exclusion prevents race conditions between left/right processors without CPU intervention.

Can the 70V07L25PFG8 be used in a 16-bit data bus configuration?

Yes. The 70V07L25PFG8 supports width expansion via MASTER/SLAVE cascading: one device configured as MASTER (M/S = VIH) drives BUSY to multiple SLAVES (M/S = VIL), enabling error-free 16-bit+ word access without external arbitration logic. This is documented in the "Width Expansion with BUSY Logic" section and Figure 3 of the datasheet.

What is the standby current consumption of the 70V07L25PFG8 in full-power-down mode?

In full standby (ISB3 mode), where both ports have CMOS-level inputs (CE > VCC − 0.2 V), the 70V07L25PFG8 draws only 0.2 mA typical - equivalent to 660 µW at 3.3 V. This value is specified in Table 9 (DC Electrical Characteristics) and confirmed for industrial temperature operation, making it suitable for battery-backed or energy-harvesting edge devices.

70V07L25PFG8 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:: 3V ~ 3.6V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

70V07L25PFG8 FAQ

1.How can I place an order for 70V07L25PFG8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 70V07L25PFG8 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 70V07L25PFG8 reliable?

The price and inventory of 70V07L25PFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V07L25PFG8 is usually 5 days.

3.What payment methods are accepted for 70V07L25PFG8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V07L25PFG8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 70V07L25PFG8?

70V07L25PFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 70V07L25PFG8 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 70V07L25PFG8?

For technical support, including 70V07L25PFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V07L25PFG8 requirements.

6.How does Aetrix verify that 70V07L25PFG8 is sourced from the original manufacturer or authorized distributors?

All 70V07L25PFG8 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 70V07L25PFG8 meets industry standards.

7.What is the process for return or replacement of 70V07L25PFG8?

All 70V07L25PFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V07L25PFG8, 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 70V07L25PFG8 part is unused and in its original packaging.

Return procedure for 70V07L25PFG8:

1.Submit a request within 90 days.

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

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