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Renesas 70V24L15PFG
- Part No.:
- 70V24L15PFG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V24L15PFG.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:635
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Product details
Overview
70V24L15PFG from Integrated Device Technology (IDT) is a high-speed, low-power 4K x 16 true dual-port static RAM with independent left/right asynchronous ports, 15 ns read cycle time, 3.3 V single-supply operation, and integrated semaphore arbitration logic - used in real-time inter-processor communication, FPGA co-processor buffering, and industrial motion control systems.
For engineers reviewing the 70V24L15PFG datasheet, 70V24L15PFG pinout, 70V24L15PFG application, or 70V24L15PFG equivalent, this page delivers verified timing specs, industrial-grade (-40°C to +85°C) thermal behavior, PLCC-84 package layout, and direct alternatives for memory expansion or legacy replacement in deterministic embedded systems.
Technical Context
The 70V24L15PFG implements fully asynchronous dual-port architecture with separate address, data, and control buses per port, enabling simultaneous read/write access to the same memory location without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag signaling and supports MASTER/SLAVE cascading for 32-bit+ bus width expansion.
It integrates full hardware semaphore support across eight flags (addressed by A0–A2), with dedicated SEM pins and atomic read-modify-write capability. All I/Os are LVTTL-compatible, and power management includes TTL- and CMOS-level standby modes yielding as low as 660 µW typical standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K x 16-bit (64 Kbit), true dual-port SRAM |
| Access Time (tAA) | 15 ns max - enables 66.7 MHz synchronous interface or real-time deterministic latency in control loops |
| Supply Voltage | 3.3 V ±0.3 V - compatible with modern low-voltage logic families and eliminates level-shifting overhead |
| Operating Temperature | -40°C to +85°C - qualified for industrial automation, motor drives, and outdoor embedded equipment |
| Standby Current (ISB3) | 660 µW typ. - allows battery-backed or energy-constrained operation during idle periods |
| Package | 84-pin PLCC (PLG84) - through-hole mountable, rework-friendly, and RoHS-compliant green variant available |
| Bus Width Support | Separate UBL/LBL controls for upper/lower byte - enables multiplexed 16-bit bus compatibility with legacy controllers |
Pinout & Package
70V24L15PFG is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC, package code PLG84), body size ≈ 29.2 mm × 29.2 mm × 4.3 mm, with gull-wing leads suitable for wave soldering and manual rework.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; A12L is NC per datasheet note |
| A0R–A11R | Right port address inputs | 12-bit address bus for right-side access; A12R is NC |
| I/O0L–I/O7L, I/O0R–I/O7R | Lower-byte bidirectional data | 8-bit data path per port; controlled by LBL/LBR for byte-select writes/reads |
| I/O8L–I/O15L, I/O8R–I/O15R | Upper-byte bidirectional data | 8-bit upper data path; enabled by UBL/UBR; supports 16-bit parallel transfer |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; independent control permits selective port power-down |
| OEL / OER | Output enable (left/right) | Active-low tri-state control for output drivers; allows shared bus operation |
| R/WL / R/WR | Read/write control (left/right) | Active-low determines direction; combined with CE/OE defines read/write cycle timing |
| SEML / SEMR | Semaphore enable (left/right) | Active-low enables semaphore flag access (A0–A2 addressed); critical for inter-processor sync |
| BUSYL / BUSYR | Busy flag (input on slave, output on master) | Indicates port contention; M/S pin configures master/slave role for cascaded systems |
| INTL / INTR | Interrupt flag (open-drain push-pull) | Signals completion of semaphore operations or user-defined events; requires external pull-up |
| VDD / VSS | Power and ground | Multiple distributed VDD/VSS pins ensure stable 3.3 V supply and low-noise grounding |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Enables concurrent, collision-free reads/writes from two independent controllers - essential for real-time IPC without software arbitration overhead |
| Hardware semaphore logic | Eight dedicated flags with atomic read-modify-write via I/O0 and A0–A2 - eliminates race conditions in multi-CPU resource sharing |
| Master/Slave cascading | Supports 32-bit+ data bus expansion using BUSY handshake - avoids external glue logic in wide-memory systems |
| Low-power standby mode | 660 µW typical ISB3 current at full CMOS standby - extends runtime in battery-buffered or always-on industrial nodes |
| LVTTL-compatible I/O | Operates directly with 3.3 V microcontrollers, FPGAs, and DSPs - no level translators required for common host interfaces |
Applications
| Industrial Motion Controller | FPGA-Based Protocol Bridge |
|---|---|
Use Scenario: Dual-axis servo drive with separate CPU (motion planner) and FPGA (real-time PWM generator) exchanging position setpoints and feedback data. IC Role / Device Role / Timing Role: Shared memory buffer with deterministic 15 ns access; left port serves CPU, right port serves FPGA; BUSY/SEM handles synchronization. Use Value: Eliminates polling or interrupt latency; guarantees sub-20 ns memory coherency between domains for <1 µs jitter-critical loop updates. | Use Scenario: Bridging Modbus RTU (microcontroller) to EtherCAT (FPGA) with protocol translation and packet buffering. IC Role / Device Role / Timing Role: Dual-port SRAM acts as handshaking FIFO; microcontroller writes command packets to left port, FPGA reads and processes on right port. Use Value: Enables zero-copy data transfer between mismatched clock domains; 4K depth supports bursty industrial Ethernet traffic without overflow. |
| Avionics Data Logger | Medical Imaging Subsystem |
Use Scenario: Recording sensor telemetry from multiple analog front-ends into non-volatile storage under DO-254 constraints. IC Role / Device Role / Timing Role: Buffer between ADC interface (right port) and flash controller (left port); operates in -40°C to +85°C extended temp range. Use Value: Industrial temperature rating ensures reliability in unheated avionics bays; 15 ns access sustains 66.7 MSPS sampling-to-store throughput. | Use Scenario: Real-time DICOM image preprocessing pipeline where GPU-accelerated filters write results back to host memory. IC Role / Device Role / Timing Role: Interposer memory between GPU DMA engine (right port) and ARM-based host processor (left port); uses semaphore for frame-ready signaling. Use Value: Hardware semaphores replace software mutexes, reducing CPU load by >40% and guaranteeing atomic frame ownership transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-15ZXI | 4K x 16, 15 ns, 3.3 V, TQFP-100; no native PLCC option; higher active current (185 mA vs. 130 mA typ.) | Requires PCB redesign due to different footprint and pinout; lacks integrated BUSY arbitration logic | Select when board space allows TQFP and system already uses Cypress ecosystem tools |
| IDT70V25L15PF | 8K x 16, 15 ns, 3.3 V, TQFP-100; larger density but incompatible PLCC-84 package and pinout | Not drop-in; requires address/data bus remapping and layout change; same industrial temp grade | Choose only if memory depth upgrade is mandatory and mechanical redesign is acceptable |
Compared with CY7C1362BV33-15ZXI and IDT70V25L15PF, the 70V24L15PFG uniquely combines PLCC-84 mechanical compatibility, 660 µW ultra-low standby, and built-in BUSY/SEM arbitration - making it irreplaceable in legacy-replacement or space-constrained industrial designs requiring deterministic dual-port behavior.
Availability
70V24L15PFG is available at Aetrix Electronics and suitable for industrial motion control, avionics data logging, and medical imaging subsystems requiring stable component supply across extended product lifecycles.
Supply support for 70V24L15PFG 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 for communications, computing, and industrial markets.
The IDT70V24 family was engineered for deterministic, low-latency inter-processor communication in real-time embedded systems - emphasizing hardware arbitration, industrial temperature resilience, and seamless integration with microcontrollers and FPGAs.
FAQ
What is the maximum operating temperature range for the 70V24L15PFG?
The 70V24L15PFG is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the Absolute Maximum Ratings table and validated across all AC/DC electrical characteristics in the datasheet. The device maintains full 15 ns access timing and 660 µW standby current within this range, making it suitable for harsh environments like factory floors and outdoor enclosures.
Does the 70V24L15PFG support true simultaneous read operations from both ports?
Yes, the 70V24L15PFG implements true dual-port SRAM cells that allow concurrent reads from the left and right ports to the same memory location without conflict or delay. This capability is explicitly stated in the Features section and enabled by independent address/data/control paths - no arbitration delay is incurred during dual-read scenarios.
What is the function of the M/S pin on the 70V24L15PFG?
The M/S (Master/Slave Select) pin configures the 70V24L15PFG's BUSY signal behavior: when pulled high (VIH), BUSY functions as an output flag indicating port contention; when pulled low (VIL), BUSY becomes an input for daisy-chained slave devices. This enables scalable multi-device memory systems without external arbitration logic.
Can the 70V24L15PFG be used in a single-port configuration?
Yes, the 70V24L15PFG can operate with only one port active by holding the opposing port's chip enable (CEL or CER) high. In this mode, the unused port enters ultra-low-power standby (ISB3 = 660 µW typ.), while the active port retains full 15 ns performance and semaphore functionality - ideal for cost-optimized designs needing partial dual-port capability.
Is the 70V24L15PFG RoHS-compliant and halogen-free?
Yes, the 70V24L15PFG is a green-part variant as noted in the datasheet's ordering information and features section. It meets RoHS Directive 2011/65/EU requirements and is halogen-free per JS709B, with lead-free terminations and compliant packaging - verified in the manufacturer's official product change notices and material declarations.
70V24L15PFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 64Kbit
- Memory Organization:
- 4K 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)
70V24L15PFG FAQ
1.How can I place an order for 70V24L15PFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V24L15PFG 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 70V24L15PFG reliable?
The price and inventory of 70V24L15PFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V24L15PFG is usually 5 days.
3.What payment methods are accepted for 70V24L15PFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V24L15PFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V24L15PFG?
70V24L15PFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V24L15PFG 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 70V24L15PFG?
For technical support, including 70V24L15PFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V24L15PFG requirements.
6.How does Aetrix verify that 70V24L15PFG is sourced from the original manufacturer or authorized distributors?
All 70V24L15PFG 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 70V24L15PFG meets industry standards.
7.What is the process for return or replacement of 70V24L15PFG?
All 70V24L15PFG units undergo pre-shipment inspection (PSI). If there is an issue with 70V24L15PFG, 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 70V24L15PFG part is unused and in its original packaging.
Return procedure for 70V24L15PFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V24L15PFG Tags
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