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Renesas 7005S15PF
- Part No.:
- 7005S15PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7005S15PF.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,519
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Product details
Overview
7005S15PF from IDT is a high-speed 8K × 8 (64 Kbit) true dual-port static RAM with independent left/right ports, 15 ns maximum read cycle time (tRC), TTL-compatible 5V ±10% operation, and integrated hardware semaphore/arbitration logic for concurrent access coordination. It enables full-speed 16-bit+ memory expansion in real-time embedded systems requiring deterministic inter-processor communication.
For engineers reviewing the 7005S15PF datasheet, 7005S15PF pinout, 7005S15PF application, or 7005S15PF equivalent, key selection criteria include its 15 ns commercial-grade access timing, dual-port arbitration behavior under BUSY/INT/SEM control, master/slave cascading capability via M/S pin, and TQFP-64 packaging for space-constrained industrial controllers.
Technical Context
The 7005S15PF implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (A0L–A12L/I/O0L–I/O7L/R/WL/CEL/OEL on left; A0R–A12R/I/O0R–I/O7R/R/WR/CER/OER on right), enabling simultaneous reads from identical memory locations without contention. Its on-chip arbitration logic resolves port conflicts using BUSY flag assertion and priority setup time (tAPS = 5 ns).
Hardware semaphore support operates across eight flags addressed by A0–A2, with dedicated SEM pins (SEML/SEMR) and interrupt generation (INTL/INTR) triggered by write to specific addresses (e.g., 1FFFh for INTR set). The device supports battery backup retention at 2V (IDT7005L variant), though 7005S15PF is the standard-power version with 750 mW typical active power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8K × 8 bits (64 Kbit) - provides 65,536 bytes of fast, non-volatile-access storage for real-time buffer sharing. |
| Access Time (tRC) | 15 ns max - guarantees sub-67 MHz sustained read/write throughput per port in commercial temperature range. |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL logic families and eliminates need for level-shifting in 5V systems. |
| Operating Temperature | 0°C to +70°C - validated for commercial-grade industrial control panels and test equipment. |
| Power Consumption | 750 mW typical active, 5 mW typical standby - enables low-heat design in densely packed multi-processor modules. |
| Package | 64-pin thin quad flatpack (TQFP) - 14 mm × 14 mm footprint with 0.5 mm pitch, suitable for automated SMT assembly. |
| Interface Type | True dual-port SRAM - no external arbitration logic required; supports simultaneous independent access from two CPUs or DMA engines. |
Pinout & Package
7005S15PF is housed in a 64-pin thin quad flatpack (TQFP) package with 0.5 mm lead pitch and 14 mm × 14 mm body size. All VCC pins require decoupling to GND; all GND pins must be connected to system ground plane for signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L | Left port address inputs | 13-bit address bus selecting one of 8K locations for left-side access; independent of right port addressing. |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path for reads/writes; tri-stated when OEL = HIGH or CEL = HIGH. |
| CEL, OEL, R/WL | Left port controls | Chip Enable, Output Enable, Read/Write Enable - fully asynchronous control with no clock dependency. |
| A0R–A12R | Right port address inputs | Independent 13-bit address space; A0R–A12R ≠ A0L–A12L per datasheet note. |
| I/O0R–I/O7R | Right port bidirectional data | Separate 8-bit data path; allows concurrent left/right transfers to same or different addresses. |
| CER, OER, R/WR | Right port controls | Asynchronous enable signals mirroring left port; timing parameters (tRC, tAA) apply identically. |
| SEML, SEMR | Semaphore enable | Activates hardware semaphore mode; when SEM = LOW, I/O0 writes to and I/O0–I/O7 read from 8 flag registers (A0–A2 addressable). |
| INTL, INTR | Interrupt flags | Open-drain outputs asserted LOW to signal inter-processor events (e.g., write to 1FFFh sets INTR). |
| BUSYL, BUSYR | Arbitration status | Push-pull outputs indicating port contention; BUSYL = LOW blocks left-port writes when right port accesses same address. |
| M/S | Master/Slave select | M/S = HIGH configures BUSYL/BUSYR as outputs (master); M/S = LOW configures them as inputs (slave) for daisy-chained systems. |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous read operations from both ports to identical memory locations without latency penalty or external logic. |
| On-chip arbitration logic | Resolves port conflicts automatically via BUSY flag assertion with 5 ns priority setup time (tAPS), eliminating software polling overhead. |
| Hardware semaphore signaling | Eight dedicated semaphore flags accessible via A0–A2 and SEML/SEMR, enabling lock-free synchronization between heterogeneous processors. |
| Master/Slave cascading | M/S pin allows multiple 7005S15PF devices to form wider data buses (e.g., 16-bit) with automatic BUSY-driven arbitration across chips. |
| Full asynchronous operation | No clocks required - each port operates independently with TTL-level timing, simplifying integration into mixed-signal or legacy 5V systems. |
Applications
| Industrial Motion Controller | Avionics Data Logger |
|---|---|
|
Use Scenario: Two microcontrollers coordinate motor trajectory calculation (CPU A) and real-time servo feedback loop execution (CPU B) within a single PCB. IC Role / Device Role / Timing Role: 7005S15PF serves as shared buffer memory with deterministic arbitration - CPU A writes position commands while CPU B reads and updates status flags via semaphore. Use Value: Eliminates software-based mutexes and reduces inter-CPU latency to ≤15 ns, ensuring sub-millisecond motion control jitter. |
Use Scenario: Flight data recorder captures sensor streams from analog front-ends and stores timestamps, GPS coordinates, and telemetry in synchronized buffers. IC Role / Device Role / Timing Role: Left port accepts ADC DMA bursts; right port services ARM Cortex-M7 host processor for file-system metadata updates and error-checking. Use Value: Concurrent access prevents data loss during high-rate sampling (≥1 MSPS) and enables background CRC computation without stalling capture. |
| Medical Imaging Subsystem | Telecom Baseband Processor |
|
Use Scenario: Ultrasound beamformer FPGA acquires echo samples while DSP core performs real-time beamforming and image reconstruction. IC Role / Device Role / Timing Role: 7005S15PF acts as ping-pong frame buffer - FPGA writes raw RF data to one half while DSP reads processed pixel data from the other. Use Value: Hardware BUSY arbitration ensures zero-cycle conflict resolution, maintaining 100% data throughput at 120 MB/s aggregate bandwidth. |
Use Scenario: Dual-core baseband processor handles LTE protocol stack (Core 0) and physical layer modulation/demodulation (Core 1) with shared channel state information. IC Role / Device Role / Timing Role: 7005S15PF provides low-latency inter-core communication channel; semaphores coordinate FFT windowing and channel estimation tasks. Use Value: Reduces inter-processor synchronization overhead by 92% versus software locks, enabling real-time 20 MHz LTE carrier processing. |
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 | 15 ns access, 8K × 16 organization, 100-pin TQFP - wider data bus but larger footprint and higher power (1.2 W active). | Requires fewer devices for 16-bit systems but lacks native M/S cascading; uses different arbitration scheme (BUSY not push-pull). | Select when 16-bit word width is mandatory and board area permits larger package; verify BUSY timing compatibility with existing firmware. |
| Renesas R1EX24002AS0C-15 | 15 ns access, 8K × 8, 64-pin TQFP - identical pinout and function but rated for industrial temp (−40°C to +85°C) and RoHS-compliant. | Direct drop-in replacement for extended temperature operation; same semaphore/interrupt behavior and timing specs. | Choose for new designs targeting industrial environments where extended temperature range is required without layout changes. |
Compared with CY7C024AV-15AXC and R1EX24002AS0C-15, the 7005S15PF offers optimized commercial-temp performance with proven M/S cascading for cost-sensitive 5V systems, while retaining full feature parity in arbitration, semaphore, and interrupt functionality.
Availability
7005S15PF is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data loggers, medical imaging subsystems, telecom baseband processors, and real-time test equipment requiring stable component supply with guaranteed long-term availability.
Supply support for 7005S15PF 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) is a fabless semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The IDT7005 family was designed specifically for deterministic inter-processor communication in real-time embedded systems, emphasizing hardware-accelerated arbitration, low-latency dual-port access, and seamless 5V system integration.
FAQ
What is the maximum operating frequency supported by the 7005S15PF?
The 7005S15PF does not operate on a clock; it is an asynchronous SRAM. Its 15 ns read cycle time (tRC) supports sustained data transfer rates up to approximately 66.7 MHz per port when continuously cycling addresses and controls. Actual system throughput depends on address/data setup/hold timing and bus turnaround requirements.
Does the 7005S15PF support battery backup for data retention?
The 7005S15PF is the standard-power variant and does not include battery backup capability. Battery retention (down to 2V) is specified only for the IDT7005L series (e.g., 7005L15PF). The 7005S15PF requires continuous 5V supply for data retention and enters full standby mode (5 mW) when both chip enables are deasserted.
How does the M/S pin affect BUSY signal behavior in the 7005S15PF?
When M/S = HIGH, the 7005S15PF operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW to block writes during port contention. When M/S = LOW, it operates as a slave: BUSYL and BUSYR become inputs, allowing external master devices to control write inhibition - critical for multi-chip cascaded memory systems.
Can the 7005S15PF perform simultaneous read and write operations to the same memory location?
Yes - the 7005S15PF's true dual-port architecture allows simultaneous reads from both ports to the same address without corruption or timing penalty. However, simultaneous write-to-same-address is prohibited; hardware arbitration asserts BUSY to block the later-arriving write, ensuring data integrity.
What are the voltage thresholds for reliable interrupt flag operation on the 7005S15PF?
The 7005S15PF interrupt flags (INTL/INTR) are open-drain outputs requiring external pull-up resistors. For proper operation, the pull-up voltage must be within the device's VCC range (4.5–5.5 V), and the interrupt-clear address (e.g., 1FFEh) must be written with CE and R/W asserted correctly per Truth Table III. Input leakage is ≤10 µA at VCC = 5.5 V.
7005S15PF 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7005S15PF FAQ
1.How can I place an order for 7005S15PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7005S15PF 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 7005S15PF reliable?
The price and inventory of 7005S15PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005S15PF is usually 5 days.
3.What payment methods are accepted for 7005S15PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005S15PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7005S15PF?
7005S15PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7005S15PF 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 7005S15PF?
For technical support, including 7005S15PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005S15PF requirements.
6.How does Aetrix verify that 7005S15PF is sourced from the original manufacturer or authorized distributors?
All 7005S15PF 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 7005S15PF meets industry standards.
7.What is the process for return or replacement of 7005S15PF?
All 7005S15PF units undergo pre-shipment inspection (PSI). If there is an issue with 7005S15PF, 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 7005S15PF part is unused and in its original packaging.
Return procedure for 7005S15PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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