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Renesas 7006L35PF
- Part No.:
- 7006L35PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7006L35PF.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,465
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Product details
Overview
7006L35PF from IDT is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 35 ns maximum read cycle time, 2 V data retention capability, and integrated hardware semaphore/arbiter logic for inter-processor communication in real-time embedded systems.
For engineers reviewing the 7006L35PF datasheet, 7006L35PF pinout, 7006L35PF application, or 7006L35PF equivalent, this device supports simultaneous asynchronous reads/writes across ports, battery-backed operation, and master/slave cascading for 16-bit+ bus expansion without external logic.
Technical Context
The 7006L35PF implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. It integrates on-chip arbitration logic that resolves contention via BUSY flag assertion and supports semaphore signaling using dedicated SEM pins and A0–A2 address lines to access eight shared flags.
Its low-power L-version delivers 700 mW typical active power and 1 µW typical standby current at 5 V, enabling battery backup operation down to 2 V while maintaining full 16K × 8 memory integrity - verified across industrial temperature range (–40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16K × 8 = 128 Kbit, supporting 14-bit address space (A0–A13) per port |
| Access Time | 35 ns max read cycle time (tRC), enabling 28.6 MHz sustained throughput per port |
| Power Consumption | 700 mW typical active, 1 µW typical standby - enables long-term battery backup with 2 V retention |
| Operating Voltage | 5.0 V ±10% (4.5–5.5 V), TTL-compatible inputs and outputs |
| Temperature Range | Industrial: –40°C to +85°C - qualified for harsh embedded environments |
| Package | 64-pin TQFP (PNG64), 14 mm × 14 mm × 1.4 mm body, lead-free and RoHS-compliant |
| ESD Rating | >2001 V HBM - robust handling in manufacturing and field deployment |
Pinout & Package
7006L35PF is housed in a 64-pin thin quad flatpack (TQFP), designated PNG64, with 0.5 mm pitch and exposed thermal pad. All VCC (pins 2, 17, 37, 49) and GND (pins 3, 4, 20, 36, 48) pins require local decoupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A13L | Left port address inputs | 14-bit address bus for left-side memory access; independent of right port |
| A0R–A13R | Right port address inputs | 14-bit address bus for right-side memory access; no shared address lines |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; tri-state controlled by OEL and CEL |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit data path; tri-state controlled by OER and CER |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down mode when high |
| OEL / OER | Output enable (left/right) | Active-low enables output drivers; overrides R/W state for read gating |
| R/WL / R/WR | Read/write control (left/right) | Active-low write, high read - defines direction when CE and OE are asserted |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access instead of RAM array |
| BUSYL / BUSYR | Busy flag (left/right) | Push-pull output (master) or input (slave); indicates port contention during same-address access |
| INTL / INTR | Interrupt flag (left/right) | Open-drain or push-pull (configurable); signals semaphore/interrupt events to host processor |
| M/S | Master/Slave select | High = master (BUSY output), low = slave (BUSY input); enables daisy-chained multi-device systems |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous read/write to same location without external arbitration logic |
| On-chip semaphore logic | Eight hardware semaphore flags accessible via A0–A2, eliminating software mutex overhead |
| Automatic power-down | CE-driven standby mode reduces current to 1 µW - critical for battery-backed systems |
| Full port-to-port arbitration | BUSY flag asserts within 35 ns (tBAA) to block conflicting writes, ensuring deterministic timing |
| Master/slave cascade support | M/S pin configures device as master (BUSY output) or slave (BUSY input) for 16-bit+ bus expansion |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion data in autonomous vehicle ECUs with sub-microsecond latency requirements. IC Role / Device Role / Timing Role: 7006L35PF serves as shared memory buffer with hardware semaphore coordination between safety-critical and application processors. Use Value: Eliminates software polling delays; BUSY arbitration ensures atomic flag updates and prevents race conditions during concurrent access. | Use Scenario: DSP and ARM host processor share FFT coefficient tables and streaming audio buffers in telecom baseband units. IC Role / Device Role / Timing Role: 7006L35PF acts as zero-wait-state dual-access memory, allowing simultaneous DMA reads and CPU writes without pipeline stalls. Use Value: 35 ns tRC enables 28.6 MHz sustained bandwidth per port - sufficient for 16-bit stereo audio at 192 kHz with headroom. |
| Redundant Control System Memory | Battery-Backed Data Logger |
Use Scenario: Fault-tolerant flight control computers maintain mirrored state variables across primary and backup channels. IC Role / Device Role / Timing Role: 7006L35PF provides lockstep-accessible memory where both ports monitor and update identical address ranges with BUSY conflict detection. Use Value: Hardware-enforced arbitration guarantees consistent state snapshot capture - no firmware intervention required during failover. | Use Scenario: Industrial PLCs log sensor timestamps and alarm events during AC power loss using onboard coin-cell backup. IC Role / Device Role / Timing Role: 7006L35PF operates in data retention mode at 2 V, preserving 128 Kbit of critical logs for >1 year without refresh. Use Value: 1 µW standby current extends battery life beyond 10 years - validated across –40°C to +85°C operating range. |
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-35AXC | 35 ns access, 16K × 16 organization, 3.3 V core, different pinout and semaphore implementation | Requires level-shifting for 5 V systems; wider data bus suits FPGA interfacing but increases layout complexity | Select when migrating to 3.3 V designs or needing 16-bit native word width without cascading |
| AS7C3256A-35JCIN | 35 ns access, 32K × 8 organization, 3.3 V only, no built-in semaphore or BUSY logic | Lacks hardware arbitration - requires external logic or firmware for multi-processor sync | Choose for cost-sensitive 3.3 V applications where arbitration is handled in software or external CPLD |
Compared with CY7C024AV-35AXC and AS7C3256A-35JCIN, the 7006L35PF uniquely delivers 5 V TTL compatibility, integrated semaphore/BUSY hardware, and battery-retention capability - making it irreplaceable in legacy industrial controllers requiring drop-in reliability and zero-modification upgrade paths.
Availability
7006L35PF is available at Aetrix Electronics and suitable for real-time inter-processor communication, battery-backed data logging, and redundant control system memory requiring stable component supply across extended product lifecycles.
Supply support for 7006L35PF 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, RF, and sensor signal conditioning ICs, now part of Renesas Electronics.
The 7006L35PF belongs to IDT's legacy dual-port SRAM product line, engineered for deterministic, low-latency shared memory in mission-critical embedded systems where hardware arbitration and data retention are non-negotiable.
FAQ
What is the guaranteed data retention voltage for the 7006L35PF?
The 7006L35PF guarantees data retention at VCC = 2.0 V minimum, as specified in Table 9 of the datasheet. This enables reliable operation from coin-cell batteries during AC power loss, with tested retention across the full industrial temperature range (–40°C to +85°C). The 7006L35PF maintains full 128 Kbit integrity without refresh in this mode.
Does the 7006L35PF support simultaneous read operations from both ports to the same memory address?
Yes, the 7006L35PF supports true simultaneous reads to the same address from both ports without contention or BUSY assertion. Its dual-port memory cell architecture allows concurrent left/right access with no arbitration delay - confirmed in the "Features" section and Truth Table I of the datasheet.
How does the M/S pin affect BUSY signal behavior on the 7006L35PF?
When M/S = HIGH, the 7006L35PF operates as master: BUSYL and BUSYR are push-pull outputs that assert during port contention. When M/S = LOW, it operates as slave: BUSYL and BUSYR become inputs, accepting BUSY signals from a master device in cascaded configurations - per Notes 1 and 2 in the Functional Block Diagram.
What package type is used for the 7006L35PF, and what are its key mechanical dimensions?
7006L35PF uses a 64-pin thin quad flatpack (TQFP), package code PNG64. Its body measures 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch. Pin 1 is marked by a dot; all four corners have chamfered leads per JEDEC MO-220 standards - detailed in Drawing 2739 drw 03.
Can the 7006L35PF be used in military-grade applications?
The 7006L35PF is rated for industrial temperature (–40°C to +85°C) and is not qualified to MIL-PRF-38535 Class B. While IDT offers military-grade variants (e.g., 7006S70JGI), the 7006L35PF is specifically designed for commercial and industrial use - confirmed by its "L" suffix (low-power) and "PF" suffix (TQFP, industrial temp) in the ordering guide.
7006L35PF 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:
- 128Kbit
- Memory Organization:
- 16K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 35ns
- Access Time:
- 35 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)
7006L35PF FAQ
1.How can I place an order for 7006L35PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006L35PF 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 7006L35PF reliable?
The price and inventory of 7006L35PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006L35PF is usually 5 days.
3.What payment methods are accepted for 7006L35PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006L35PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006L35PF?
7006L35PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006L35PF 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 7006L35PF?
For technical support, including 7006L35PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006L35PF requirements.
6.How does Aetrix verify that 7006L35PF is sourced from the original manufacturer or authorized distributors?
All 7006L35PF 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 7006L35PF meets industry standards.
7.What is the process for return or replacement of 7006L35PF?
All 7006L35PF units undergo pre-shipment inspection (PSI). If there is an issue with 7006L35PF, 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 7006L35PF part is unused and in its original packaging.
Return procedure for 7006L35PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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