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Renesas 7005L17PF8
- Part No.:
- 7005L17PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7005L17PF8.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,494
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Product details
Overview
7005L17PF8 from IDT is a high-speed 8K × 8 dual-port static RAM with true independent left/right ports, 17 ns maximum read cycle time (tRC), 2V data retention capability, and integrated hardware semaphore/arbitration logic-used in real-time inter-processor communication systems requiring simultaneous memory access without external logic.
For engineers reviewing the 7005L17PF8 datasheet, 7005L17PF8 pinout, 7005L17PF8 application, or 7005L17PF8 equivalent, key selection criteria include dual-port arbitration timing (tAPS = 5 ns), BUSY flag behavior under M/S configuration, low-power standby current (1 µA typ.), and TQFP-64 package compatibility with industrial temperature range (–40°C to +85°C).
Technical Context
The 7005L17PF8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses for left (L) and right (R) ports. It supports MASTER/SLAVE cascading via M/S pin to expand data width beyond 8 bits without external glue logic.
On-chip arbitration uses push-pull BUSY outputs (when M/S = H) or BUSY inputs (when M/S = L), with priority resolution governed by tAPS (5 ns setup) and port-to-port delay parameters (tWDD ≤ 30 ns, tDDD ≤ 25 ns). Semaphore flags are accessed via A0–A2 and controlled by SEM enable, enabling inter-port synchronization without software polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8K × 8 bits (64 Kbit), organized as two independent 8K-word × 8-bit ports |
| Access Time | 17 ns max tRC (read cycle time); enables 58.8 MHz sustained dual-port throughput |
| Power Consumption | 700 mW active (typ.), 1 µW standby (typ.) - supports battery-backed operation at 2V |
| Supply Voltage | 5.0 V ±10%; TTL-compatible inputs and outputs; no level-shifting required |
| Operating Temp | –40°C to +85°C (industrial grade); qualified per MIL-PRF-38535 QML for reliability-critical use |
| Package | 64-pin thin quad flatpack (TQFP), 14 mm × 14 mm × 1.4 mm body, lead-free and RoHS-compliant |
| Arbitration Logic | Hardware-based BUSY flag generation and semaphore signaling (8 flags, addressed by A0–A2) |
Pinout & Package
64-pin thin quad flatpack (TQFP) package with 0.5 mm pitch; thermally enhanced for industrial ambient operation. Pin 1 marked by corner notch; top-view orientation shown in datasheet drawing 2738 drw 03.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable per port; controls power-down mode and port activation independently |
| R/WL / R/WR | Read/Write Control (Left / Right) | Active-low write enable; when high, enables high-impedance output during reads |
| OEL / OER | Output Enable (Left / Right) | Active-low tri-state control; decouples I/O bus when disabled, enabling shared bus topology |
| A0L–A12L / A0R–A12R | Address Inputs (Left / Right) | 13-bit address bus per port; non-mirrored - A0L–A12L ≠ A0R–A12R per datasheet note |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left / Right) | Bidirectional 8-bit data bus per port; supports simultaneous read/write to same location |
| SEML / SEMR | Semaphore Enable (Left / Right) | Active-low enable for semaphore register access; used with A0–A2 to read/write 8 flags |
| INTL / INTR | Interrupt Flag (Left / Right) | Open-drain compatible (push-pull output); set/cleared by writing to address 1FFFH/1FFEh |
| BUSYL / BUSYR | Busy Flag (Left / Right) | Push-pull output (M/S = H) or input (M/S = L); indicates port contention or blocks writes on slave |
| M/S | Master/Slave Select | High = BUSY outputs asserted; Low = BUSY inputs accepted - determines arbitration role in cascade |
| VCC / GND | Power / Ground | Multiple VCC (pins 8, 23, 39, 47, 64) and GND (pins 7, 22, 34, 46, 51) pins for low-noise operation |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent read/write access to same memory location without conflict or wait states |
| Hardware Semaphore Support | Eight dedicated flags accessible via A0–A2; enables lock-free inter-processor synchronization without CPU overhead |
| Automatic Power-Down | CE-controlled entry into 1 µW standby mode; retains data at 2V supply for battery backup applications |
| Master/Slave Cascading | M/S pin configures device as master (BUSY output) or slave (BUSY input), enabling seamless 16-bit+ bus expansion |
| Robust ESD Protection | Withstands >2001 V HBM electrostatic discharge - suitable for handling in uncontrolled environments |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
|
Use Scenario: Two microcontrollers exchange sensor data and control commands in hard real-time loop with deterministic latency. IC Role / Device Role / Timing Role: Shared memory buffer with hardware arbitration; eliminates need for software handshaking or external FIFOs. Use Value: 17 ns tRC and 5 ns tAPS ensure sub-20 ns worst-case inter-port handshake, meeting <50 µs loop timing budgets. |
Use Scenario: DSP core streams audio samples to an ARM host processor for analysis and display. IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong buffer; one port writes while the other reads continuously. Use Value: Simultaneous read/write capability prevents pipeline stalls; 700 mW active power supports thermal design in compact enclosures. |
| Industrial PLC Memory Expansion | Military Avionics Data Exchange |
|
Use Scenario: Programmable logic controller adds redundant I/O module with synchronized state mirroring. IC Role / Device Role / Timing Role: Dual-port RAM stores mirrored process image; semaphores coordinate updates between main and backup CPUs. Use Value: –40°C to +85°C rating and MIL-PRF-38535 qualification ensure reliability in harsh factory environments. |
Use Scenario: Flight control computer shares telemetry and command buffers with mission management unit across isolated subsystems. IC Role / Device Role / Timing Role: Hardware-arbitrated memory interface guarantees atomic flag updates and deterministic BUSY response. Use Value: 2V data retention and 2001 V ESD withstand support operation during brownouts and maintenance handling. |
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 CY7C028V-15ZXC | 15 ns tRC, 3.3 V supply only; no 2V data retention; 64-pin TQFP but different pinout | Requires level-shifting in 5 V systems; unsuitable for battery backup or legacy 5 V designs | Choose only if migrating to 3.3 V architecture and faster access is critical. |
| Renesas R1EX24064ASAS-17 | 17 ns tRC, 5 V supply, but single-port with external arbitration logic; no integrated semaphore | Lacks hardware BUSY/SEM support - increases BOM count and PCB area for equivalent functionality | Select only when cost sensitivity outweighs design simplicity and timing determinism. |
Compared with CY7C028V-15ZXC and R1EX24064ASAS-17, the 7005L17PF8 uniquely delivers 5 V compatibility, 2V data retention, and full hardware arbitration in a drop-in TQFP-64 package - eliminating voltage translation and discrete logic while guaranteeing sub-20 ns inter-port coordination.
Availability
7005L17PF8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, industrial PLC memory expansion, and military avionics data exchange requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 7005L17PF8 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 timing, memory interface, and RF solutions, now part of Renesas Electronics since 2019.
The IDT7005 family was designed specifically for deterministic, low-latency inter-processor communication in embedded control, test equipment, and defense systems where hardware-managed memory coherency is mandatory.
FAQ
What is the operating temperature range for the 7005L17PF8?
The 7005L17PF8 is rated for industrial temperature operation from –40°C to +85°C. This range is explicitly confirmed in the "Maximum Operating Temperature and Supply Voltage" table (2738 tbl 05) and applies to all speed grades including the 17 ns version. It is not rated for commercial (0°C to +70°C) or military (–55°C to +125°C) ranges unless specified in a separate part number variant.
Does the 7005L17PF8 support battery backup operation?
Yes, the 7005L17PF8 supports battery backup operation with guaranteed data retention at 2V (VDR = 2.0 V min), as specified in Table 2738 tbl 09. Its low standby current (1 µA typical) enables extended retention from small coin-cell batteries - a defining feature of the "L" (low-power) variant distinguishing it from the "S" (standard) version.
How does the M/S pin affect BUSY signal behavior on the 7005L17PF8?
When M/S = H, BUSYL and BUSYR are push-pull outputs indicating port contention; when M/S = L, they become inputs that inhibit writes on the slave port. This dual-role behavior is documented in Note 1 of the Pin Names table (2738 tbl 01) and Figure 2738 drw 14, enabling flexible master/slave cascading without external logic.
Can the 7005L17PF8 perform simultaneous reads from both ports to the same memory address?
Yes, the 7005L17PF8 features true dual-ported memory cells that allow simultaneous reads from both left and right ports to the same address location without contention or timing penalty - a core capability highlighted in the "Features" section (page 1) and enabled by its internal cell architecture.
What package type is used for the 7005L17PF8?
7005L17PF8 uses a 64-pin thin quad flatpack (TQFP) package, designated PNG64 in IDT documentation (see Pin Configuration drawing 2738 drw 03). Its dimensions are 14 mm × 14 mm × 1.4 mm, with 0.5 mm lead pitch and RoHS-compliant lead-free finish.
7005L17PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- 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:
- 17ns
- Access Time:
- 17 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)
7005L17PF8 FAQ
1.How can I place an order for 7005L17PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7005L17PF8 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 7005L17PF8 reliable?
The price and inventory of 7005L17PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005L17PF8 is usually 5 days.
3.What payment methods are accepted for 7005L17PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005L17PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7005L17PF8?
7005L17PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7005L17PF8 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 7005L17PF8?
For technical support, including 7005L17PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005L17PF8 requirements.
6.How does Aetrix verify that 7005L17PF8 is sourced from the original manufacturer or authorized distributors?
All 7005L17PF8 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 7005L17PF8 meets industry standards.
7.What is the process for return or replacement of 7005L17PF8?
All 7005L17PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7005L17PF8, 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 7005L17PF8 part is unused and in its original packaging.
Return procedure for 7005L17PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7005L17PF8 Tags
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