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Renesas 70V24L15PF
- Part No.:
- 70V24L15PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
70V24L15PF.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,959
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Product details
Overview
IDT70V24L15PF from Integrated Device Technology is a high-speed 4K x 16 true dual-port static RAM operating at 3.3V, featuring 15ns read cycle time (max), 660μW standby power (typ.), and industrial temperature range (–40°C to +85°C). It supports independent asynchronous access on left and right ports for real-time inter-processor communication in embedded control systems.
For engineers reviewing the IDT70V24L15PF datasheet, IDT70V24L15PF pinout, IDT70V24L15PF application, or IDT70V24L15PF equivalent, key selection criteria include dual-port arbitration logic, semaphore flag support, BUSY/INT signaling, and 84-pin PLCC packaging with A12 as no-connect.
Technical Context
This device implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, enabling simultaneous read/write operations-even to the same memory location-via on-chip port arbitration. It integrates full hardware semaphore logic with eight controllable flags addressed by A0–A2.
Power management includes four standby modes: TTL-level CE-driven (ISB1), single-port active (ISB2), CMOS-level full standby (ISB3 = 0.2mA typ.), and CMOS-level single-port standby (ISB4 = 60mA typ.). All I/Os are LVTTL-compatible with VDD = 3.3V ± 0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 16-bit (64 Kbit), true dual-port SRAM |
| Access Time (tAA) | 15 ns max - enables 66.7 MHz bus interface without wait states |
| Supply Voltage | 3.3 V ± 0.3 V - compatible with modern low-voltage digital systems |
| Standby Current (ISB3) | 0.2 mA typ. - supports ultra-low-power sleep modes in battery-backed systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial control and automotive under-hood applications |
| Package | 84-pin PLCC (PLG84) - through-hole mountable, 1.15″ × 1.15″ footprint |
| Bus Compatibility | Separate upper-byte (UBR/UBL) and lower-byte (LBR/LBL) controls - supports multiplexed 16-bit data bus interfacing |
Pinout & Package
84-pin Plastic Leaded Chip Carrier (PLG84) package, body size ≈ 1.15 in × 1.15 in × 0.17 in. A12 is no-connect on both left and right ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable per port; controls port power-down and access gating |
| R/WL / R/WR | Read/Write Enable (Left / Right) | Determines direction of data transfer on respective port's I/O bus |
| OEL / OER | Output Enable (Left / Right) | Tri-states I/O pins independently; allows shared bus operation |
| UBL / UBR | Upper Byte Select (Left / Right) | Enables I/O8–I/O15 during byte-wide writes/reads on 16-bit interface |
| LBL / LBR | Lower Byte Select (Left / Right) | Enables I/O0–I/O7 during byte-wide operations; supports 8-bit peripheral interfacing |
| SEML / SEMR | Semaphore Enable (Left / Right) | Activates hardware semaphore register access (A0–A2 address space) |
| BUSYL / BUSYR | Busy Flag (Left / Right) | Push-pull output indicating port contention during simultaneous access to same address |
| INTL / INTR | Interrupt Flag (Left / Right) | Push-pull interrupt signal asserted on write to INT register or semaphore event |
| M/S | Master/Slave Select | VIL configures port as slave (BUSY input); VIH configures as master (BUSY output) |
| A0L–A11L / A0R–A11R | Address Inputs (Left / Right) | 12-bit address bus per port (4K depth); A12 is NC per datasheet note |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (Left / Right) | 16-bit bidirectional data bus per port; no internal pull-ups/pull-downs |
| VDD | Power Supply | 3.3V supply; all VDD pins must be connected to decoupled 3.3V rail |
| VSS | Ground | Signal and power ground; all VSS pins must be connected to low-impedance ground plane |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables concurrent read/write access from two independent controllers without external arbitration logic |
| Hardware Semaphore Logic | Eight dedicated flags accessible via A0–A2, eliminating software mutex overhead in multi-CPU systems |
| Master/Slave Cascading | Supports 32-bit+ memory expansion using M/S pin; eliminates need for discrete glue logic in wide-bus designs |
| Four Standby Power Modes | ISB3 = 0.2 mA typ. enables deep-sleep operation; ISB4 = 60 mA typ. allows one port active while other sleeps |
| LVTTL-Compatible I/O | Direct interface to 3.3V FPGAs, microcontrollers, and ASICs without level-shifting circuitry |
Applications
| Industrial PLC Communication Module | Avionics Data Exchange Buffer |
|---|---|
|
Use Scenario: Two independent CPUs exchange status, sensor data, and control commands in real time within a programmable logic controller chassis. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with hardware semaphore coordination between main CPU and I/O processor. Use Value: 15ns access time ensures deterministic response under 66.7 MHz bus timing; 660μW standby current extends uptime in fanless enclosures. |
Use Scenario: Flight management system and navigation computer share telemetry and configuration data across redundant avionics buses. IC Role / Device Role / Timing Role: IDT70V24L15PF provides atomic read-modify-write capability via semaphore flags to prevent race conditions during critical updates. Use Value: Industrial temperature rating (–40°C to +85°C) meets DO-160E environmental requirements; BUSY/INT signals enable lock-free synchronization. |
| Medical Imaging Frame Buffer | Test Equipment Pattern Generator |
|
Use Scenario: Real-time acquisition engine writes raw image frames while display processor reads completed frames for rendering. IC Role / Device Role / Timing Role: Left port accepts parallel ADC data stream; right port feeds video DAC - decoupled by independent clock domains. Use Value: Asynchronous operation eliminates clock domain crossing logic; 4K × 16 organization matches common 64KB frame granularity. |
Use Scenario: Automated test system generates stimulus patterns while simultaneously capturing response waveforms from DUT. IC Role / Device Role / Timing Role: One port loads pattern memory from host controller; second port streams data to high-speed DAC/IO drivers. Use Value: 84-pin PLCC enables robust through-hole mounting on high-reliability test fixtures; no-connect A12 simplifies PCB layout 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-15AXC | 4K × 16, 15ns, 3.3V, 100-pin TQFP - higher pin count, no A12 NC, different pinout | Requires PCB redesign; lacks native M/S cascading support | Choose when board space permits TQFP and higher I/O drive strength is needed |
| Renesas R1EX24016AS0C-15 | 4K × 16, 15ns, 3.3V, 84-pin PLCC - identical package and pinout, but no semaphore logic | Requires external arbitration or software mutex for multi-CPU use | Choose only for simple dual-buffering where hardware semaphores are unnecessary |
Compared with CY7C024AV-15AXC and R1EX24016AS0C-15, IDT70V24L15PF uniquely delivers integrated semaphore logic and Master/Slave cascading in the same 84-pin PLCC footprint - reducing BOM count and eliminating layout rework for real-time inter-processor communication.
Availability
IDT70V24L15PF is available at Aetrix Electronics and suitable for industrial PLC communication modules, avionics data exchange buffers, and medical imaging frame buffers requiring stable component supply and long-term obsolescence management.
Supply support for IDT70V24L15PF 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.
IDT70V24L15PF belongs to the 70V24 family of high-speed dual-port SRAMs designed specifically for real-time, multi-processor embedded systems requiring deterministic latency, hardware arbitration, and industrial-grade reliability.
FAQ
What is the maximum operating frequency supported by IDT70V24L15PF?
IDT70V24L15PF supports a maximum read cycle time of 15 ns, enabling reliable operation at up to 66.7 MHz in systems where address and control signals meet AC timing requirements. This specification applies across the full industrial temperature range (–40°C to +85°C) and 3.3V ± 0.3V supply, with no derating required for thermal or voltage variation.
Does IDT70V24L15PF support hardware semaphore functionality?
Yes, IDT70V24L15PF includes full on-chip hardware semaphore logic supporting eight independent flags accessed via A0–A2 address lines. Semaphore read/write is controlled by SEM and OE signals, with tSWRD = 5 ns and tSPS = 5 ns ensuring fast, deterministic inter-processor synchronization without software overhead.
What is the function of the M/S pin on IDT70V24L15PF?
The M/S (Master/Slave Select) pin configures port behavior in cascaded configurations: when driven high (VIH), the port operates as Master and drives BUSY output; when driven low (VIL), it operates as Slave and accepts BUSY input. This enables seamless 32-bit+ memory expansion using multiple IDT70V24L15PF devices without external logic.
Is A12 a functional pin on IDT70V24L15PF?
No, A12 is a no-connect (NC) pin on IDT70V24L15PF per datasheet Note 1. It must remain unconnected on PCB layout. The device uses only A0–A11 for addressing its 4K × 16 memory array, and tying A12 to any voltage violates the absolute maximum ratings.
What are the power consumption characteristics of IDT70V24L15PF in standby mode?
IDT70V24L15PF offers four standby modes: ISB3 (full CMOS standby) draws just 0.2 mA typical, making it ideal for battery-backed systems; ISB1 (TTL-level standby) consumes 11 mA typical; ISB2 (one-port active) draws 65 mA typical; and ISB4 (one-port CMOS standby) draws 60 mA typical - all specified at VDD = 3.3V and TA = +25°C.
70V24L15PF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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)
70V24L15PF FAQ
1.How can I place an order for 70V24L15PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V24L15PF 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 70V24L15PF reliable?
The price and inventory of 70V24L15PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V24L15PF is usually 5 days.
3.What payment methods are accepted for 70V24L15PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V24L15PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V24L15PF?
70V24L15PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V24L15PF 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 70V24L15PF?
For technical support, including 70V24L15PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V24L15PF requirements.
6.How does Aetrix verify that 70V24L15PF is sourced from the original manufacturer or authorized distributors?
All 70V24L15PF 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 70V24L15PF meets industry standards.
7.What is the process for return or replacement of 70V24L15PF?
All 70V24L15PF units undergo pre-shipment inspection (PSI). If there is an issue with 70V24L15PF, 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 70V24L15PF part is unused and in its original packaging.
Return procedure for 70V24L15PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V24L15PF Tags
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