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Renesas 7007S25G
- Part No.:
- 7007S25G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7007S25G.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,404
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Product details
Overview
IDT7007S25G from IDT (now Renesas) is a high-speed 32K × 8 dual-port static RAM with true independent left/right ports, 25 ns maximum access time (industrial/military grade), TTL-compatible 5 V ±10% operation, and on-chip semaphore/interrupt arbitration logic-designed for real-time interprocessor communication in embedded control systems.
For engineers reviewing the IDT7007S25G datasheet, IDT7007S25G pinout, IDT7007S25G application, or IDT7007S25G equivalent, key selection considerations include BUSY-flag arbitration timing (tBDD ≤ 30 ns), dual-port power-down modes (ISB3 ≤ 0.2 mA), M/S-selectable master/slave cascading, and 80-pin TQFP packaging for high-density board layouts.
Technical Context
The IDT7007S25G implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (A0L–A14L/I/O0L–I/O7L/R/WL/CEL/OEL vs. A0R–A14R/I/O0R–I/O7R/R/WR/CER/OER), enabling simultaneous read/write to the same memory location without contention when BUSY arbitration is properly managed.
It integrates hardware semaphore logic (8 flags, addressed via A0–A2), interrupt flag generation (INTL/INTR triggered at fixed addresses 7FFEh/7FFFh), and push-pull BUSY outputs (not open-drain), with M/S pin configuring port behavior: HIGH enables BUSY output (Master), LOW enables BUSY input (Slave).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 8 bits (256 Kbit total), two independent addressable arrays accessible concurrently |
| Access Time (tAA) | 25 ns max - guarantees deterministic latency for real-time deterministic bus cycles |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5 V TTL logic families without level translation |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor drives and PLCs |
| Standby Current (ISB3) | 0.2 mA max (full standby, CMOS inputs) - enables ultra-low-power sleep states in battery-backed systems |
| Bus Interface | TTL-compatible inputs/outputs - direct interfacing with microcontrollers, FPGAs, and ASICs using standard 5 V logic thresholds |
| Arbitration Logic | On-chip BUSY, semaphore (SEML/SEMR), and interrupt (INTL/INTR) - eliminates need for external glue logic in multi-processor designs |
Pinout & Package
Package: 80-pin thin quad flatpack (TQFP), 14 mm × 14 mm × 1.4 mm body, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Active-low enable per port; controls port power-down (ISB1–ISB4) and memory access gating |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low write strobe; determines direction of data transfer on I/O bus during CE assertion |
| OEL / OER | Output Enable (Left/Right) | Active-low tri-state control for I/O pins; allows shared bus operation without external transceivers |
| A0L–A14L / A0R–A14R | Address Inputs (Left/Right) | 15-bit address bus per port; supports full 32K address space independently on each side |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional Data Bus (Left/Right) | 8-bit parallel data path per port; electrically isolated with independent output drivers |
| SEML / SEMR | Semaphore Enable (Left/Right) | Active-low select for accessing 8 internal semaphore flags (via A0–A2); decouples semaphore from RAM access |
| INTL / INTR | Interrupt Flag Output (Left/Right) | Open-collector compatible (push-pull), asserted when opposite port writes to mailbox address (7FFEh/7FFFh) |
| BUSYL / BUSYR | Busy Flag (Left/Right) | Push-pull output (Master) or input (Slave); indicates port contention during simultaneous address match |
| M/S | Master/Slave Select | Configures BUSY pin function: HIGH = BUSY output (arbitration master), LOW = BUSY input (slave wait state) |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port concurrent access | Enables simultaneous read/write to identical memory locations without external arbitration logic |
| Hardware semaphore support | Eight dedicated flags accessed via A0–A2, eliminating software mutex overhead in RTOS environments |
| Configurable master/slave cascading | M/S pin enables expansion to 16-bit+ data width using multiple IDT7007 devices without discrete logic |
| Low-power standby modes | Three distinct standby currents (ISB1–ISB4) allow fine-grained power management per active/inactive port |
| Integrated interrupt mailboxes | Dedicated 7FFEh/7FFFh addresses provide hardware-triggered interprocessor signaling with user-defined payload |
Applications
| Industrial PLC Communication | Real-Time Motor Control |
|---|---|
Use Scenario: Two independent microcontrollers exchange status, setpoints, and fault codes across a shared memory buffer in a programmable logic controller. IC Role / Device Role / Timing Role: Dual-port SRAM acts as a zero-latency interprocessor mailbox with hardware BUSY arbitration preventing write collisions. Use Value: Eliminates polling delays and software semaphores; tBDD ≤ 30 ns ensures deterministic response under worst-case contention. |
Use Scenario: FPGA-based motion controller and ARM host processor coordinate trajectory updates and encoder feedback in servo drives. IC Role / Device Role / Timing Role: IDT7007S25G provides synchronized access to position buffers and control registers with interrupt-driven notification (INTL/INTR). Use Value: Enables sub-25 ns memory access for closed-loop timing; ISB3 ≤ 0.2 mA reduces idle power in energy-sensitive drives. |
| Avionics Data Concentrator | Test Equipment Pattern Memory |
Use Scenario: Multiple ARINC-429 interface modules write sensor data into shared memory while a safety-critical processor reads and validates it. IC Role / Device Role / Timing Role: Acts as radiation-tolerant (military-grade) dual-port buffer with M/S-configured master/slave hierarchy for priority arbitration. Use Value: −55°C to +125°C operation meets DO-160 environmental requirements; push-pull BUSY prevents latch-up in noisy avionics busses. |
Use Scenario: Automated test equipment stores stimulus/response patterns for high-speed digital IC validation, accessed concurrently by pattern generator and analyzer cores. IC Role / Device Role / Timing Role: Provides deterministic 25 ns read/write access to 256 Kbit pattern memory with no wait states. Use Value: Enables 40 MHz sustained throughput (1/tRC); 80-pin TQFP supports dense PCB routing for multi-channel ATE 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 |
|---|---|---|---|
| Cypress CY7C028V-25AXC | 25 ns access, 32K × 8, but uses 3.3 V core (5 V tolerant I/O); no integrated semaphore logic | Requires external arbitration logic for semaphore use; better suited for low-voltage mixed-signal systems | Select when migrating to 3.3 V domains and external arbitration is acceptable |
| Renesas R1EX24032AS0C-25 | 25 ns access, 32K × 8, but only commercial temperature range (0°C to +70°C); no BUSY arbitration | Lacks hardware BUSY/semaphore/interrupt - requires FPGA or MCU firmware arbitration | Select for cost-sensitive commercial applications where full hardware arbitration is unnecessary |
Compared with CY7C028V-25AXC and R1EX24032AS0C-25, the IDT7007S25G uniquely delivers integrated M/S-configurable BUSY arbitration, semaphore flags, and interrupt mailboxes in a single 5 V device qualified for industrial/military temperatures-reducing BOM count and firmware complexity in safety-critical dual-processor systems.
Availability
IDT7007S25G is available at Aetrix Electronics and suitable for industrial PLC communication, real-time motor control, and avionics data concentrators requiring stable component supply, long-term lifecycle support, and guaranteed military-grade temperature performance.
Supply support for IDT7007S25G 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), now part of Renesas Electronics, is a semiconductor company specializing in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The IDT7007 product line was designed specifically for deterministic interprocessor communication in real-time embedded systems-delivering hardware-accelerated arbitration, low-latency dual-port access, and robust 5 V operation without external logic.
FAQ
What is the maximum operating temperature range for the IDT7007S25G?
The IDT7007S25G is rated for industrial and military temperature operation from −40°C to +85°C. This specification is confirmed in the Absolute Maximum Ratings and DC Operating Conditions tables of the official IDT7007 datasheet (DSC 2940/16, September 2019), making it suitable for harsh-environment applications such as motor drives and avionics subsystems.
Does the IDT7007S25G support true simultaneous read/write to the same memory location?
Yes, the IDT7007S25G features true dual-ported memory cells that permit simultaneous reads of the same memory location from both ports. Its architecture allows concurrent access without contention, provided BUSY arbitration is correctly implemented via the M/S pin and associated timing constraints (e.g., tAPS ≥ 5 ns).
How does the M/S pin affect BUSY signal behavior on the IDT7007S25G?
When M/S = HIGH, the IDT7007S25G operates as a Master: BUSYL and BUSYR are push-pull outputs indicating port contention. When M/S = LOW, it operates as a Slave: BUSYL and BUSYR become inputs that inhibit writes when driven LOW by a Master device-enabling hierarchical arbitration in multi-device configurations.
What are the key differences between IDT7007S25G and IDT7007L variants?
The "S" suffix in IDT7007S25G denotes standard power consumption (e.g., ICC = 170 mA typ. at fMAX), while "L" indicates low-power operation (ICC = 160 mA typ.). Both share identical 25 ns access time, pinout, and feature set-but the S version offers higher drive strength and slightly higher active current, optimized for speed-critical industrial systems.
Can the IDT7007S25G be used in a 16-bit data bus configuration?
Yes, the IDT7007S25G supports 16-bit expansion via Master/Slave cascading. By connecting two devices with M/S = HIGH (Master) and M/S = LOW (Slave), and tying their BUSY lines appropriately, the system achieves full-speed 16-bit word access without additional discrete logic-explicitly documented in the IDT7007 functional description and block diagram.
7007S25G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-BPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 256Kbit
- Memory Organization:
- 32K 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:
- Through Hole
- Supplier Device Package:
- 68-PGA (29.46x29.46)
7007S25G FAQ
1.How can I place an order for 7007S25G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7007S25G 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 7007S25G reliable?
The price and inventory of 7007S25G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7007S25G is usually 5 days.
3.What payment methods are accepted for 7007S25G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7007S25G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7007S25G?
7007S25G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7007S25G 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 7007S25G?
For technical support, including 7007S25G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7007S25G requirements.
6.How does Aetrix verify that 7007S25G is sourced from the original manufacturer or authorized distributors?
All 7007S25G 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 7007S25G meets industry standards.
7.What is the process for return or replacement of 7007S25G?
All 7007S25G units undergo pre-shipment inspection (PSI). If there is an issue with 7007S25G, 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 7007S25G part is unused and in its original packaging.
Return procedure for 7007S25G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7007S25G Tags
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