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Renesas 7005L17PF
- Part No.:
- 7005L17PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7005L17PF.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,717
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Product details
Overview
7005L17PF 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), 700 mW typical active power, and 1 µA typical standby current. It supports simultaneous asynchronous access, on-chip semaphore arbitration, and battery backup data retention down to 2 V - used in real-time embedded systems requiring concurrent CPU/DSP memory access.
For engineers reviewing the 7005L17PF datasheet, 7005L17PF pinout, 7005L17PF application, or 7005L17PF equivalent, key selection criteria include dual-port contention resolution timing (tBDD ≤ 30 ns), M/S-configurable master/slave BUSY signaling, TTL-compatible 5 V ±10% operation, and 64-pin TQFP package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The 7005L17PF implements fully asynchronous dual-port architecture with separate address, control, and I/O buses for left (L) and right (R) ports. It integrates hardware semaphore logic (8 flags, addressed via A0–A2), automatic port arbitration, and push-pull BUSY/INT outputs - eliminating need for external logic in master/slave cascaded configurations.
Its low-power L-version uses CMOS process to achieve 1 µA full-standby current (ISB3) at 5 V while maintaining 17 ns access under commercial/industrial conditions. Data retention mode activates below 2 V (VDR = 2.0 V), sustaining memory state without external power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 8 bits (64 Kbit), two independent 13-bit address spaces (A0L–A12L / A0R–A12R) |
| Access Time (tRC) | 17 ns max - guarantees full-speed read/write cycle for 58.8 MHz bus operation |
| Supply Voltage | 5.0 V ±10% - TTL-compatible single supply; no level-shifting required in legacy 5 V systems |
| Active Power (ICC) | 160 mA typ (700 mW) - enables thermal management in dense PCB layouts without forced cooling |
| Standby Current (ISB3) | 0.2 mA typ (1 µA) - supports ultra-low-power sleep modes in battery-backed applications |
| Data Retention Voltage | 2.0 V min - retains valid data during brown-out or backup battery operation |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor drives and PLCs |
Pinout & Package
7005L17PF is packaged in a 64-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, with exposed pad for thermal dissipation. Pin numbering follows standard TQFP top-view layout (pin 1 at top-left corner, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L | Left port address inputs | 13-bit address bus for left-side access; independent of right port addressing |
| A0R–A12R | Right port address inputs | 13-bit address bus for right-side access; no shared address lines with left port |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; tri-stated when OEL = H or CEL = H |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit data path; tri-stated when OER = H or CER = H |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down entry/exit (tPU/tPD) |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; determines direction of data flow on I/O bus |
| OEL / OER | Output enable (left/right) | Active-low enables output drivers; overrides R/WL/R/WR for read-only gating |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access (A0–A2) instead of memory array |
| BUSYL / BUSYR | Busy flag (left/right) | Push-pull output (master) or input (slave); signals port contention during same-address access |
| INTL / INTR | Interrupt flag (left/right) | Push-pull output; set/cleared by writing to dedicated addresses (1FFFH/1FFE H) |
| M/S | Master/slave select | H = BUSY outputs asserted; L = BUSY inputs accepted - enables daisy-chained multi-device systems |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads from same location on both ports - critical for lock-free inter-processor communication |
| On-chip semaphore logic | 8 hardware semaphore flags accessible via A0–A2; eliminates software polling and external mutex ICs |
| Full port arbitration | Hardware-resolved BUSY assertion prevents write collisions during address contention - no firmware arbitration overhead |
| Master/slave cascading support | M/S pin configures device as master (BUSY output) or slave (BUSY input), enabling 16-bit+ data bus expansion without glue logic |
| Battery backup retention | Operates down to 2 V with <1 µA retention current - sustains memory during main power loss in industrial controllers |
Applications
| Industrial PLC Memory Buffer | Dual-Core DSP Shared Memory |
|---|---|
Use Scenario: Real-time I/O scanning and logic execution in programmable logic controllers with separate control and communication processors. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared scratchpad memory between CPU and communications co-processor; BUSY arbitration ensures deterministic access during scan cycles. Use Value: Eliminates software semaphores and reduces inter-processor latency to ≤30 ns (tBDD), enabling sub-millisecond scan times. |
Use Scenario: High-throughput signal processing in radar or audio systems using two synchronized DSPs sharing coefficient and buffer data. IC Role / Device Role / Timing Role: Provides zero-wait-state memory access for both DSPs; semaphore flags coordinate FFT windowing and DMA transfers. Use Value: Enables concurrent read/write without pipeline stalls - maintains 58.8 MHz effective bandwidth per port. |
| Avionics Flight Control Interface | Medical Imaging Data Pipeline |
Use Scenario: Redundant flight control computers exchanging sensor fusion results and actuator commands in DO-254-certified systems. IC Role / Device Role / Timing Role: Acts as fault-tolerant shared memory with hardware-enforced access isolation; M/S configuration supports master-slave failover. Use Value: Guarantees atomic semaphore updates and ≤17 ns access - meets RTCA/DO-254 deterministic timing requirements. |
Use Scenario: Real-time buffering of ultrasound or MRI raw pixel data between acquisition FPGA and image reconstruction processor. IC Role / Device Role / Timing Role: Serves as ping-pong frame buffer with independent read/write ports - one port accepts streaming data, the other feeds reconstruction engine. Use Value: Prevents data loss during burst acquisition; 2 V data retention preserves last frame during power interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C028V-15AXC | 15 ns tRC, 3.3 V core (with 5 V tolerant I/O), 100-pin TQFP - higher speed but incompatible voltage domain | Requires level-shifting in legacy 5 V systems; not drop-in for 7005L17PF's 5 V native interface | Select only if migrating to 3.3 V system architecture and board redesign is acceptable. |
| IDT70V25L15PF | 15 ns tRC, 3.3 V supply, LVDS-compatible, 100-pin TQFP - lower power but different voltage, pinout, and signaling | Not pin-compatible; lacks M/S pin and integrated BUSY arbitration logic - requires external logic for master/slave operation | Choose for new 3.3 V designs prioritizing speed over backward compatibility with 5 V industrial platforms. |
Compared with CY7C028V-15AXC and IDT70V25L15PF, the 7005L17PF delivers native 5 V operation, integrated M/S-configurable arbitration, and industrial temperature support - making it the sole option for drop-in replacement in existing 5 V dual-processor systems requiring guaranteed 17 ns timing and battery backup.
Availability
7005L17PF is available at Aetrix Electronics and suitable for industrial PLCs, avionics interfaces, and medical imaging subsystems requiring stable component supply across extended product lifecycles.
Supply support for 7005L17PF 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 real-time embedded systems requiring deterministic dual-processor memory sharing - emphasizing hardware arbitration, low-latency access, and robust industrial reliability.
FAQ
What is the maximum operating temperature range for the 7005L17PF?
The 7005L17PF is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the Absolute Maximum Ratings table and DC Electrical Characteristics section of the official IDT datasheet (Rev. Feb.14.20), and applies to all speed grades within the L-series including the 7005L17PF.
Does the 7005L17PF support battery backup operation, and what voltage is required?
Yes, the 7005L17PF supports battery backup data retention at 2.0 V minimum (VDR = 2.0 V), with typical retention current of 100 µA. This capability is explicitly specified in Table 9 (Data Retention Characteristics) and enabled automatically when VCC drops below threshold - no external circuitry is needed beyond a backup battery connected to VCC.
How does the M/S pin affect BUSY signal behavior on the 7005L17PF?
When M/S = H, the 7005L17PF operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW during port contention. When M/S = L, it operates as a slave: BUSYL and BUSYR become inputs that must be driven LOW by a master device to inhibit writes - as defined in Notes 1 and 2 of the Pin Names table and Truth Table I.
Can the 7005L17PF perform simultaneous reads from both ports to the same memory address?
Yes, the 7005L17PF features true dual-ported memory cells that allow simultaneous reads from the same address location on both left and right ports without contention or BUSY assertion - a key capability highlighted in the Features section and confirmed in Truth Table I (Non-Contention Read/Write Control).
What package type is used for the 7005L17PF, and are thermal pads supported?
The 7005L17PF uses a 64-pin thin quad flatpack (TQFP) with body dimensions 14 mm × 14 mm × 1.4 mm and an exposed thermal pad. The datasheet confirms this in the Pin Configurations section (drawing 2738 drw 03) and notes the pad improves thermal dissipation - recommended for soldering to PCB ground plane per IPC-7351 standards.
7005L17PF 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:
- 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)
7005L17PF FAQ
1.How can I place an order for 7005L17PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7005L17PF 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 7005L17PF reliable?
The price and inventory of 7005L17PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005L17PF is usually 5 days.
3.What payment methods are accepted for 7005L17PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005L17PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7005L17PF?
7005L17PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7005L17PF 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 7005L17PF?
For technical support, including 7005L17PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005L17PF requirements.
6.How does Aetrix verify that 7005L17PF is sourced from the original manufacturer or authorized distributors?
All 7005L17PF 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 7005L17PF meets industry standards.
7.What is the process for return or replacement of 7005L17PF?
All 7005L17PF units undergo pre-shipment inspection (PSI). If there is an issue with 7005L17PF, 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 7005L17PF part is unused and in its original packaging.
Return procedure for 7005L17PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7005L17PF Tags
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AT24C02C-XHM-T
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