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Renesas 7006S55PFI
- Part No.:
- 7006S55PFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7006S55PFI.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,648
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Product details
Overview
7006S55PFI from IDT is a high-speed 16K × 8 true dual-port static RAM with independent left/right ports, 55 ns max read cycle time, TTL-compatible 5 V ±10% supply, and industrial temperature range (–40°C to +85°C). It supports simultaneous reads of the same memory location and enables 16-bit-or-wider bus expansion via Master/Slave cascading in real-time control systems.
For engineers reviewing the 7006S55PFI datasheet, 7006S55PFI pinout, 7006S55PFI application, or 7006S55PFI equivalent, key selection criteria include BUSY arbitration timing (tBDD ≤ 40 ns), semaphore flag support (8 flags, A0–A2 addressed), low-power standby (1 mA typ), 64-pin TQFP package compatibility, and dual-port contention resolution without external logic.
Technical Context
The 7006S55PFI implements fully asynchronous dual-port operation with on-chip arbitration logic that resolves port conflicts using either address-match or chip-enable priority schemes. Its BUSY flag behavior differs by M/S pin state: when M/S = VIH, BUSY is an output signaling contention; when M/S = VIL, BUSY is an input used for slave-side write gating.
It integrates full hardware semaphore signaling across ports-eight dedicated flags accessed via I/O0–I/O7 with address lines A0–A2-and supports both RAM access (CE = VIL, SEM = VIH) and semaphore access (CE = VIH, SEM = VIL) with distinct timing windows (tSOP = 15 ns, tSWRD = 5 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 8 bits (128 Kbit); supports independent concurrent access on left and right ports |
| Max Read Cycle Time (tRC) | 55 ns - defines minimum interval between successive read operations on same port |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no auxiliary supplies required |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Standby Current (ISB1) | 13 mA (typ) - measured with both ports disabled (CEL = CER = VIH), enabling low-power idle states |
| Busy Arbitration Delay (tBDD) | ≤ 40 ns - maximum delay from BUSY deassertion to valid read data, critical for real-time synchronization |
| Semaphore Access Time (tSAA) | ≤ 55 ns - latency to read/write semaphore flags, enabling fast inter-processor coordination |
Pinout & Package
7006S55PFI is packaged in a 64-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, with 0.5 mm lead pitch and exposed thermal pad. All VCC and GND pins must be connected per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A13L / A0R–A13R | Address Inputs (Left/Right) | 14-bit independent address buses; A0L–A13L ≠ A0R–A13R - no shared address decoding |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional Data (Left/Right) | 8-bit parallel data paths; tri-state controlled per port via OEL/OER |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables; controls power-up/down per port independently |
| OEL / OER | Output Enable (Left/Right) | Active-low enables output drivers; allows read-only mode while CE remains active |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low write enable; determines direction of data flow on respective I/O bus |
| SEML / SEMR | Semaphore Enable (Left/Right) | Active-low selects semaphore register access instead of RAM array |
| BUSYL / BUSYR | Busy Flag (Left/Right) | Open-drain push-pull outputs (M/S = VIH) or inputs (M/S = VIL); signals port contention |
| INTL / INTR | Interrupt Flag (Left/Right) | Push-pull outputs indicating semaphore or memory event; requires initialization at power-up |
| M/S | Master/Slave Select | VIH configures device as Master (BUSY output); VIL configures as Slave (BUSY input) |
| VCC / GND | Power Supply | Multiple VCC/GND pins distributed for noise reduction; all must be connected |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables simultaneous, independent read/write access to any memory location from left and right ports without arbitration overhead |
| On-Chip Semaphore Logic | Eight hardware semaphore flags accessible via A0–A2 and I/O0–I/O7, eliminating need for external locking circuitry in multi-processor systems |
| Configurable BUSY Arbitration | Supports both address-match and chip-enable priority modes (tAPS = 5 ns), ensuring deterministic contention resolution |
| Low-Power Standby Mode | 13 mA typical ISB1 current with both ports disabled - reduces system power during idle without losing data |
| 2V Data Retention | Maintains stored data with VCC ≥ 2.0 V, enabling battery backup operation during main power loss |
| TTL-Compatible Interface | Direct connection to 5 V TTL logic families without level-shifting; VIH = 2.2 V min, VIL = 0.8 V max |
Applications
| Real-Time Motion Control | Digital Signal Processing Subsystem |
|---|---|
Use Scenario: Coordinating FPGA-based servo loop execution with microcontroller-based trajectory planning in CNC machines. IC Role / Device Role / Timing Role: Dual-port RAM buffers position/velocity commands and status feedback between FPGA (right port) and MCU (left port) with sub-60 ns latency. Use Value: Eliminates FIFO handshaking delays; BUSY arbitration ensures deterministic command sequencing during axis synchronization. | Use Scenario: Sharing filter coefficients and streaming audio samples between two DSP cores in telecom baseband processing. IC Role / Device Role / Timing Role: Acts as shared coefficient/data memory with semaphore-controlled access to prevent corruption during coefficient updates. Use Value: 8 hardware semaphores enable lock-free updates of 8 independent filter banks; tSAA ≤ 55 ns minimizes processing stalls. |
| Avionics Display Management | Industrial PLC Redundancy Module |
Use Scenario: Synchronizing graphics rendering (GPU) and flight parameter overlay (MCU) on a multifunction display unit. IC Role / Device Role / Timing Role: Provides frame-buffer memory accessible concurrently by GPU (right port) and safety-critical MCU (left port) under DO-254 constraints. Use Value: 55 ns tRC and tBDD ≤ 40 ns guarantee pixel update deadlines; M/S configuration enables master-slave failover without software intervention. | Use Scenario: Maintaining identical I/O state images between primary and backup PLC CPUs in safety-rated control systems. IC Role / Device Role / Timing Role: Stores mirrored process image with atomic semaphore writes ensuring consistent state transfer during hot-switchover. Use Value: Hardware semaphore flags (tSPS = 5 ns) prevent race conditions during state snapshot; 2 V retention preserves last-known-safe state during brownouts. |
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-55AXC | 55 ns access, 16K × 16 organization, 3.3 V core with 5 V tolerant I/O; no built-in semaphore logic | Requires external logic for inter-processor coordination; better suited for wider data paths than byte-level sharing | Select when 16-bit data width and lower voltage operation outweigh semaphore integration needs |
| AS7C3256A-55PCN | 55 ns access, 32K × 8 organization, single-port architecture; no BUSY/semaphore features | Needs external arbitration logic and dual-clock domain bridging for multi-processor use | Select only for cost-sensitive, non-contention applications where dual-port functionality is not required |
Compared with CY7C024AV-55AXC and AS7C3256A-55PCN, the 7006S55PFI uniquely delivers integrated semaphore arbitration and configurable BUSY signaling in a 16K × 8 dual-port format - reducing BOM count and PCB area in tightly coupled processor systems where deterministic inter-core communication is mandatory.
Availability
7006S55PFI is available at Aetrix Electronics and suitable for real-time motion control, avionics display management, digital signal processing subsystems, industrial PLC redundancy modules, and safety-critical embedded systems requiring stable component supply across extended product lifecycles.
Supply support for 7006S55PFI 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions, now part of Renesas Electronics.
The 7006S55PFI belongs to IDT's legacy high-speed dual-port SRAM family, designed specifically for deterministic inter-processor communication in industrial automation, aerospace, and test equipment where hardware-enforced memory coherency is essential.
FAQ
What is the maximum operating temperature range for the 7006S55PFI?
The 7006S55PFI 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 and applies to all speed grades including the 55 ns variant. The device maintains full specification compliance across this range without derating.
Does the 7006S55PFI support battery backup operation?
Yes, the 7006S55PFI supports battery backup operation with data retention down to VCC = 2.0 V. This is specified in the "Data Retention Characteristics" section, where VDR = 2.0 V (min) and ICCDR ≤ 4000 µA (max) over the military/industrial temperature range. The L-version variants emphasize this capability, but the S-version (including 7006S55PFI) retains it.
How does the M/S pin affect BUSY signal behavior on the 7006S55PFI?
When M/S = VIH, the 7006S55PFI operates as a Master: BUSYL and BUSYR are push-pull outputs asserting during port contention. When M/S = VIL, it operates as a Slave: BUSYL and BUSYR become inputs used to gate writes on the respective port. This dual-mode behavior is defined in the Functional Block Diagram notes and Truth Table I.
Can the 7006S55PFI perform simultaneous reads from both ports to the same memory address?
Yes, the 7006S55PFI supports true simultaneous reads of the same memory location from both ports. This is explicitly stated in the "Features" section as "True Dual-Ported memory cells which allow simultaneous reads of the same memory location." No arbitration or BUSY assertion occurs during concurrent reads.
What package type is used for the 7006S55PFI?
The 7006S55PFI uses a 64-pin thin quad flatpack (TQFP) package, identified as PNG64 in IDT documentation. The package measures 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch and includes an exposed thermal pad. Pin configuration diagrams confirm all signal assignments for this variant.
7006S55PFI 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:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7006S55PFI FAQ
1.How can I place an order for 7006S55PFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7006S55PFI 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 7006S55PFI reliable?
The price and inventory of 7006S55PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7006S55PFI is usually 5 days.
3.What payment methods are accepted for 7006S55PFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7006S55PFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7006S55PFI?
7006S55PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7006S55PFI 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 7006S55PFI?
For technical support, including 7006S55PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7006S55PFI requirements.
6.How does Aetrix verify that 7006S55PFI is sourced from the original manufacturer or authorized distributors?
All 7006S55PFI 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 7006S55PFI meets industry standards.
7.What is the process for return or replacement of 7006S55PFI?
All 7006S55PFI units undergo pre-shipment inspection (PSI). If there is an issue with 7006S55PFI, 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 7006S55PFI part is unused and in its original packaging.
Return procedure for 7006S55PFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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