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Renesas 70V05S15PF
- Part No.:
- 70V05S15PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
70V05S15PF.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,793
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Product details
Overview
IDT70V05S15PF from Integrated Device Technology (IDT) is a high-speed 3.3V 8K × 8 true dual-port static RAM with simultaneous independent read access on both ports, 15 ns maximum commercial access time, and full hardware semaphore and interrupt support for inter-processor communication in real-time embedded systems.
For engineers reviewing the IDT70V05S15PF datasheet, IDT70V05S15PF pinout, IDT70V05S15PF application, or IDT70V05S15PF equivalent, key selection considerations include dual-port arbitration timing (tAPS, tBDD), BUSY/INT flag behavior under contention, master/slave cascading capability, and compatibility with 3.3V-only industrial control and telecom backplane designs requiring deterministic memory coherency.
Technical Context
The IDT70V05S15PF implements fully asynchronous dual-port operation with separate address, data, and control buses per port (Left/Right), enabling concurrent reads/writes to distinct addresses without arbitration delay. Its on-chip arbitration logic resolves port-to-port contention via BUSY flag assertion or semaphore locking based on address match or CE timing.
It supports MASTER/SLAVE configuration using the M/S pin: when M/S = VIH, BUSYL/BUSYR are outputs indicating local port busy state; when M/S = VIL, they become inputs accepting external BUSY signals. Semaphore flags (8 total, addressed by A0–A2) and interrupt generation (INTL/INTR) are implemented in dedicated logic blocks with no software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 8 bits (64 Kbit), two independent 8-bit ports |
| Access Time (tAA) | 15 ns max (commercial grade), defines minimum cycle time for reliable read setup |
| Supply Voltage | 3.3 V ± 0.3 V - single-rail operation eliminates level-shifting in 3.3V systems |
| Power Consumption | Active: 380 mW typ (IDT70V05L variant); Standby: 660 μW typ - enables low-power idle modes |
| Operating Temperature | 0°C to +70°C (commercial), confirmed for IDT70V05S variant per ordering code |
| Package | 64-pin TQFP (PNG64), 14 mm × 14 mm × 1.4 mm body - surface-mount compatible with automated assembly |
| Interface Logic | TTL-compatible inputs/outputs - direct interfacing with 3.3V microcontrollers and FPGAs |
Pinout & Package
Package: 64-pin Thin Quad Flatpack (TQFP), PN64, body size 14 mm × 14 mm × 1.4 mm. All VDD pins require decoupling; all VSS pins must be grounded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L | Left Port Address Inputs | 13-bit address bus for left port (8K = 2¹³ locations) |
| A0R–A12R | Right Port Address Inputs | Independent 13-bit address bus for right port |
| I/O0L–I/O7L | Left Port Bidirectional Data | 8-bit data path; tri-stated when OEL = VIH or CEL = VIH |
| I/O0R–I/O7R | Right Port Bidirectional Data | Independent 8-bit data path with identical control behavior |
| CEL, CER | Chip Enable (Left/Right) | Active-low enables memory access; controls power-down mode per port |
| OEL, OER | Output Enable (Left/Right) | Active-low enables data output drivers; overrides R/W for read direction |
| R/WL, R/WR | Read/Write Control (Left/Right) | Low = write, High = read; determines I/O direction when OE active |
| SEML, SEMR | Semaphore Enable (Left/Right) | Active-low selects semaphore register access instead of memory array |
| INTL, INTR | Interrupt Output (Left/Right) | Open-drain (per datasheet note: non-tri-stated push-pull) - asserts on cross-port event |
| BUSYL, BUSYR | BUSY Flag (Left/Right) | Push-pull output (Master) or input (Slave); indicates port contention resolution status |
| M/S | Master/Slave Select | VIH = Master (BUSY outputs); VIL = Slave (BUSY inputs); enables cascaded 16-bit+ configurations |
| VDD, VSS | Power/Ground | Multiple VDD/VSS pins distributed for low-noise operation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables simultaneous reads to same location on both ports - eliminates arbitration latency for shared lookup tables |
| Hardware Semaphore Logic | Eight dedicated flags (A0–A2 addressable) managed entirely in silicon - no CPU cycles or external logic required |
| Configurable BUSY Arbitration | Supports both address-match (tAPS) and CE-timing (tBAC) arbitration modes - selectable per system timing budget |
| Master/Slave Cascading | Single M/S pin configures device as master (BUSY output) or slave (BUSY input) - enables seamless 16-bit+ word expansion |
| Interrupt Generation | INTL/INTR assert on semaphore set/clear or cross-port write - provides hardware event signaling without polling |
Applications
| Industrial PLC Communication Module | Telecom Line Card Buffer |
|---|---|
|
Use Scenario: Two independent MCUs exchange status and command data across a shared memory region in a programmable logic controller. IC Role / Device Role / Timing Role: IDT70V05S15PF serves as the coherency-enforced shared memory buffer, with each MCU assigned one port and hardware semaphore ensuring atomic flag updates. Use Value: Eliminates software locks and reduces inter-processor latency to ≤15 ns, meeting hard real-time scan-cycle deadlines in IEC 61131-3 environments. |
Use Scenario: A DSP and FPGA coordinate packet buffering and header processing on a telecom line card with strict jitter requirements. IC Role / Device Role / Timing Role: IDT70V05S15PF acts as a zero-latency, contention-resolved FIFO interface - DSP writes payload, FPGA reads and appends headers. Use Value: BUSY flag synchronization prevents data corruption during concurrent access; 15 ns access ensures sub-microsecond handoff latency. |
| Avionics Sensor Fusion Hub | Medical Imaging Real-Time Pipeline |
|
Use Scenario: Multiple sensor processors (IMU, GPS, barometer) write timestamped raw data into a common memory space for fusion algorithm execution. IC Role / Device Role / Timing Role: IDT70V05S15PF functions as the deterministic, lock-free data aggregation buffer - each sensor uses one port, fusion CPU uses interrupts to trigger reads. Use Value: Hardware interrupt (INTL/INTR) notifies fusion CPU immediately upon new data arrival, avoiding polling overhead and guaranteeing <1 µs response. |
Use Scenario: An FPGA-accelerated image preprocessor and ARM-based diagnostic engine share pixel buffers during real-time ultrasound frame analysis. IC Role / Device Role / Timing Role: IDT70V05S15PF operates as a dual-clock domain bridge - FPGA writes processed frames, ARM reads for AI inference with precise BUSY coordination. Use Value: Master/Slave configuration allows FPGA to act as master controlling BUSY, ensuring ARM never reads incomplete frames - critical for FDA Class II compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-15AXC | 15 ns access, 8K × 16 organization, 100-pin TQFP - wider data bus but larger footprint and higher power (550 mW active) | Requires data bus splitting or glue logic for 8-bit host interfaces; less suitable for space-constrained 8-bit MCU designs | Select when 16-bit data path is native to system architecture and board area permits larger package |
| IS61LV5128-15KLI | 15 ns, 64K × 8 async SRAM, 44-pin SOJ - single-port only, no BUSY/semaphore/interrupt logic | Lacks hardware arbitration - forces software-managed mutual exclusion, increasing CPU load and worst-case latency | Select only for cost-sensitive, non-contention applications where deterministic dual-port features are unnecessary |
Compared with CY7C024AV-15AXC and IS61LV5128-15KLI, the IDT70V05S15PF uniquely delivers true dual-port coherency, hardware semaphore, and interrupt signaling in a compact 64-pin TQFP - making it irreplaceable for real-time inter-processor communication where latency, determinism, and silicon-level resource management are mandatory.
Availability
IDT70V05S15PF is available at Aetrix Electronics and suitable for industrial PLC communication modules, telecom line card buffers, and avionics sensor fusion hubs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for IDT70V05S15PF 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) was a fabless semiconductor company specializing in timing, memory interface, RF, and sensor signal conditioning solutions before its acquisition by Renesas Electronics in 2019.
The IDT70V05S15PF belongs to IDT's legacy high-speed dual-port SRAM product line, designed specifically for deterministic inter-processor communication in real-time embedded systems such as industrial automation, telecom infrastructure, and aerospace control units.
FAQ
What is the operating temperature range for the IDT70V05S15PF?
The IDT70V05S15PF is rated for commercial operation from 0°C to +70°C. The "S" in the part number denotes the commercial temperature grade; industrial-grade variants (e.g., IDT70V05L) specify –40°C to +85°C but carry different speed/power trade-offs and ordering codes.
Does the IDT70V05S15PF support true simultaneous reads to the same memory location on both ports?
Yes, the IDT70V05S15PF implements true dual-ported memory cells that allow concurrent reads to identical addresses on the left and right ports without conflict, arbitration, or timing penalty - a core architectural feature confirmed in the Functional Block Diagram and Features section.
How does the M/S pin affect BUSY pin functionality on the IDT70V05S15PF?
When M/S = VIH, the IDT70V05S15PF operates as a Master: BUSYL and BUSYR are push-pull outputs reflecting local port contention status. When M/S = VIL, it operates as a Slave: BUSYL and BUSYR become inputs accepting external BUSY signals from a master device - enabling hierarchical arbitration in multi-device systems.
Can the IDT70V05S15PF be used in a 16-bit data path configuration?
Yes, the IDT70V05S15PF supports 16-bit expansion via Master/Slave cascading: two devices are connected with M/S tied high on one (Master) and low on the other (Slave), using BUSY handshake to coordinate access - eliminating need for external glue logic as stated in the Features section.
What is the purpose of the SEM pins on the IDT70V05S15PF?
The SEML and SEMR pins enable hardware semaphore register access instead of memory array access. When asserted (low), they route I/O0–I/O7 to eight dedicated semaphore flags (addressed by A0–A2), providing atomic, lock-free inter-process signaling without consuming CPU cycles or requiring software mutexes.
70V05S15PF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-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:
- 8K x 8
- 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:
- 64-TQFP (14x14)
70V05S15PF FAQ
1.How can I place an order for 70V05S15PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V05S15PF 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 70V05S15PF reliable?
The price and inventory of 70V05S15PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V05S15PF is usually 5 days.
3.What payment methods are accepted for 70V05S15PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V05S15PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V05S15PF?
70V05S15PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V05S15PF 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 70V05S15PF?
For technical support, including 70V05S15PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V05S15PF requirements.
6.How does Aetrix verify that 70V05S15PF is sourced from the original manufacturer or authorized distributors?
All 70V05S15PF 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 70V05S15PF meets industry standards.
7.What is the process for return or replacement of 70V05S15PF?
All 70V05S15PF units undergo pre-shipment inspection (PSI). If there is an issue with 70V05S15PF, 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 70V05S15PF part is unused and in its original packaging.
Return procedure for 70V05S15PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V05S15PF Tags
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