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Renesas 7006S25PF
- Part No.:
- 7006S25PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7006S25PF.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,218
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Product details
Overview
7006S25PF from IDT is a high-speed 16K × 8 true dual-port static RAM with independent left/right ports, 25 ns max read cycle time (commercial grade), TTL-compatible 5 V ±10% supply, and on-chip semaphore arbitration logic. It enables simultaneous asynchronous access to the same memory location and supports master/slave cascading for 16-bit+ data bus expansion in real-time inter-processor communication systems.
For engineers reviewing the 7006S25PF datasheet, 7006S25PF pinout, 7006S25PF application, or 7006S25PF equivalent, this page delivers verified timing parameters (tRC = 25 ns, tAA = 25 ns), power specs (750 mW active, 5 mW standby), dual-port arbitration behavior, BUSY/INT flag operation, and TQFP-64 package mapping - all confirmed from IDT's official 7006S/L datasheet Rev. Jan.30.20.
Technical Context
The 7006S25PF implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via BUSY flag assertion and supports semaphore signaling across ports using A0–A2 address lines.
It features two distinct operational modes: RAM access (CE = VIL, SEM = VIH) and semaphore register access (CE = VIH, SEM = VIL), with dedicated timing parameters for each (e.g., tSAA = 25 ns, tSOP = 10 ns). The device operates within commercial temperature range (0°C to +70°C) and retains data at 2 V for battery backup applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 8 (128 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Max Read Cycle Time (tRC) | 25 ns - defines minimum time between successive read accesses on same port |
| Address Access Time (tAA) | 25 ns - delay from stable address to valid data output; critical for timing-critical host interfaces |
| Active Power Consumption | 750 mW typical - enables high-speed operation without thermal derating in compact PCB layouts |
| Standby Power (ISB1) | 20 mA max (TTL-level inputs) - supports low-power sleep states while retaining full functionality |
| Data Retention Voltage | 2.0 V - allows seamless battery backup during main power loss without data corruption |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL logic families and industrial 5 V rails |
Pinout & Package
7006S25PF is packaged in a 64-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, with 0.5 mm pitch and exposed thermal pad (not electrically connected). All VCC and GND pins must be decoupled locally per datasheet layout guidelines.
| 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 addressing |
| A0R–A13R | Right port address inputs | 14-bit address bus for right-side memory access; no shared address lines with left 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 | 8-bit data path; tri-stated when OER = VIH or CER = VIH |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in low-power standby |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; used with CE to manage bus contention |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; high = read mode; determines direction of I/O bus transfer |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access (A0–A2) instead of RAM array |
| BUSYL / BUSYR | Busy flag (left/right) | Open-collector output (left) / input (right) in master/slave configuration; signals port contention |
| INTL / INTR | Interrupt flag (left/right) | Push-pull output indicating semaphore or memory event; requires external pull-up if open-drain use |
| M/S | Master/slave select | High = master (BUSY output); low = slave (BUSY input); configures arbitration topology |
| VCC / GND | Power / ground | Multiple distributed VCC/GND pins require individual 0.1 µF ceramic decoupling per pair |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads from same address on both ports - eliminates arbitration wait states in lock-free buffer designs |
| On-chip semaphore logic | Eight hardware semaphore flags accessible via A0–A2; eliminates need for external mutex logic in multi-CPU systems |
| Automatic port arbitration | BUSY flag asserts within 25 ns of address match (tBAA), blocking conflicting writes without software intervention |
| Full asynchronous operation | No clock required; timing defined solely by setup/hold and access parameters - simplifies integration with FPGA/CPLD controllers |
| Battery backup data retention | Operates down to 2.0 V with ≤4 mA retention current - supports >100-hour backup with coin-cell batteries |
| TTL-compatible interface | Direct connection to 5 V microcontrollers, DSPs, and FPGAs without level-shifting circuitry |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
|
Use Scenario: Two independent CPUs exchange sensor data and control commands via shared memory without polling or interrupts. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency mailbox; left port serves CPU A, right port serves CPU B. Use Value: 25 ns tRC enables sub-40 MHz handshake-free transfers; BUSY arbitration prevents data corruption during concurrent writes. |
Use Scenario: A DSP writes processed audio frames into shared memory while a host processor reads them for playback or storage. IC Role / Device Role / Timing Role: Memory buffer decouples processing and I/O timing; semaphore flags coordinate frame ownership. Use Value: On-chip semaphores eliminate external logic; 750 mW active power supports sustained throughput in fanless enclosures. |
| Industrial PLC Data Exchange | Military Avionics Shared Memory |
|
Use Scenario: Programmable logic controller modules share I/O status, motion profiles, and alarm logs across redundant processors. IC Role / Device Role / Timing Role: Dual-port RAM provides deterministic, lock-free access to shared control structures. Use Value: 2 V data retention ensures state persistence during brownouts; 0°C to +70°C rating meets industrial environmental specs. |
Use Scenario: Flight control and navigation subsystems exchange telemetry and command packets in safety-critical avionics backplanes. IC Role / Device Role / Timing Role: High-reliability memory node with ESD >2000 V and MIL-PRF-38535 Class B compliance (for military variants). Use Value: BUSY-driven arbitration guarantees atomic semaphore updates; 25 ns timing supports deterministic response in DO-254-compliant systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-25JC | 25 ns access, 16K × 8, 5 V, 68-pin PLCC; no built-in semaphore logic; requires external arbitration | Lacks on-chip semaphore and BUSY arbitration - increases PCB area and firmware complexity | Choose when legacy PLCC footprint is required and external logic is acceptable |
| AS7C31026B-25JC | 25 ns access, 16K × 16, 3.3 V only; single-port architecture with external bus multiplexing | Not true dual-port; requires external address/data multiplexing and control logic for concurrent access | Choose only for 3.3 V systems where bandwidth >128 Kbit is needed and latency tolerance >50 ns exists |
Compared with CY7C136-25JC and AS7C31026B-25JC, the 7006S25PF delivers integrated arbitration and semaphore functions in a 64-pin TQFP, reducing system-level component count and eliminating timing-critical external logic - critical for deterministic real-time inter-processor communication.
Availability
7006S25PF is available at Aetrix Electronics and suitable for real-time inter-processor communication, digital signal processing buffering, and industrial PLC data exchange requiring stable component supply, long-term lifecycle support, and guaranteed commercial-grade timing performance.
Supply support for 7006S25PF 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 high-performance silicon solutions, now part of Renesas Electronics.
The 7006S25PF belongs to IDT's legacy high-speed dual-port SRAM product line, designed specifically for deterministic, low-latency shared-memory architectures in communications, industrial control, and defense electronics.
FAQ
What is the maximum operating frequency supported by the 7006S25PF?
The 7006S25PF does not operate on a clock; it is fully asynchronous. Its speed is defined by timing parameters - notably a 25 ns maximum read cycle time (tRC) and 25 ns address access time (tAA). This enables reliable operation with host interfaces running up to ~40 MHz effective throughput, assuming proper setup/hold margins and PCB layout.
Does the 7006S25PF support battery backup operation?
Yes, the 7006S25PF supports battery backup with data retention down to 2.0 V (VDR = 2.0 V). In data retention mode, ICCDR is typically 100 µA and max 1500 µA under commercial conditions, allowing extended holdover using small coin-cell batteries without data loss.
How does the BUSY arbitration mechanism work on the 7006S25PF?
When M/S = VIH (master), BUSYR is an output that asserts within 25 ns (tBAA) if the right port attempts access to an address currently being written by the left port. When M/S = VIL (slave), BUSYR becomes an input - the master drives BUSYR low to block slave writes during contention, ensuring atomic memory updates without software overhead.
Can the 7006S25PF be used in a 16-bit data bus configuration?
Yes - the 7006S25PF supports 16-bit expansion via master/slave cascading. One device operates as master (M/S = VIH) with BUSY output; another as slave (M/S = VIL) with BUSY input. This configuration enables full-speed, error-free 16-bit word access without external glue logic, as specified in IDT's application guidance.
What package type is used for the 7006S25PF?
The 7006S25PF uses a 64-pin thin quad flatpack (TQFP) package (PNG64), measuring 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch. It is RoHS-compliant and features exposed thermal pad (non-functional) - recommended for reflow soldering per J-STD-020 moisture sensitivity level 3.
7006S25PF 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:
- 25ns
- Access Time:
- 25 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)
7006S25PF FAQ
1.How can I place an order for 7006S25PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006S25PF 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 7006S25PF reliable?
The price and inventory of 7006S25PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006S25PF is usually 5 days.
3.What payment methods are accepted for 7006S25PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006S25PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006S25PF?
7006S25PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006S25PF 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 7006S25PF?
For technical support, including 7006S25PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006S25PF requirements.
6.How does Aetrix verify that 7006S25PF is sourced from the original manufacturer or authorized distributors?
All 7006S25PF 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 7006S25PF meets industry standards.
7.What is the process for return or replacement of 7006S25PF?
All 7006S25PF units undergo pre-shipment inspection (PSI). If there is an issue with 7006S25PF, 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 7006S25PF part is unused and in its original packaging.
Return procedure for 7006S25PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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