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Renesas 7130SA55TF
- Part No.:
- 7130SA55TF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA55TF.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,270
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Product details
Overview
7130SA55TF from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 55 ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables full-speed 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130SA55TF datasheet, 7130SA55TF pinout, 7130SA55TF application, or 7130SA55TF equivalent, this page delivers verified timing parameters, dual-port arbitration behavior, BUSY/INT flag operation, package-specific pin mapping for TQFP-64, and validated alternative part selection guidance.
Technical Context
The 7130SA55TF implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via BUSY flag assertion, with tBDD ≤ 55 ns and tAPS = 5 ns minimum priority setup time.
It supports R/W-controlled and CE-controlled write cycles, features open-drain BUSY outputs requiring external pull-ups, and provides INTL/INTR flags for inter-port communication - all while maintaining 55 ns read cycle time (tRC) and 55 ns write cycle time (tWC) at VCC = 5.0 V ±10%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit data width per port) |
| Access Time | 55 ns max - defines minimum read/write cycle interval for guaranteed data validity |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard TTL logic rails and industrial 5V systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
| Standby Current | 20 mA max (ISB1, TTL-level inputs) - enables low-power sleep modes without external power gating |
| Package | 64-pin TQFP (PNG64) - surface-mount, 14 mm × 14 mm footprint with 0.8 mm pitch |
| Arbitration Logic | On-chip, master-only - eliminates need for external glue logic in multi-processor shared-memory designs |
Pinout & Package
7130SA55TF is housed in a 64-pin Thin Quad Flat Package (TQFP), designated PNG64, with 14 mm × 14 mm body and 0.8 mm lead pitch. All VCC and GND pins must be externally decoupled per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 33, 49) | Ground reference | Common return path for both ports; requires low-inductance connection to PCB ground plane |
| VCC (Pins 32, 48, 63, 64) | Power supply | 5V ±10% supply input; four dedicated pins reduce IR drop and improve noise immunity |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls dynamic current draw and power-down entry |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; allows high-impedance tri-state during bus sharing |
| R/WL / R/WR | Read/write direction (left/right) | High = read, low = write; determines data flow direction on bidirectional I/O lines |
| BUSYL / BUSYR | Arbitration status (open-drain) | Low indicates port contention; requires external 4.7 kΩ pull-up to VCC for proper logic level |
| INTL / INTR | Interrupt flag (open-drain) | Signals inter-port event (e.g., address match at 3FFh/3FEh); also requires pull-up |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address bus per port; supports full 1K-word addressing independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data path per port; shares pins for read and write operations |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous access to same memory location without external logic or software coordination |
| Open-drain BUSY and INT outputs | Enables wired-OR interrupt/arb signaling across multiple dual-port devices on shared bus |
| Master-only BUSY flag generation | Distinguishes 7130SA55TF from SLAVE 7140; enables hierarchical memory expansion topologies |
| 55 ns read/write cycle time | Supports real-time deterministic response in DSP, motion control, and packet buffering applications |
| TTL-compatible voltage levels | Direct interface with legacy 5V microcontrollers, FPGAs, and ASICs without level-shifting |
Applications
| Industrial PLC Data Exchange | DSP Co-Processor Shared Memory |
|---|---|
Use Scenario: Two independent CPU cores (e.g., ARM + FPGA) access shared configuration and status registers in real time. IC Role / Device Role / Timing Role: MASTER dual-port SRAM providing atomic read-modify-write capability with hardware arbitration. Use Value: Eliminates software semaphores and race conditions; guarantees data coherency at 55 ns latency. | Use Scenario: A DSP offloads FFT computation while a host MCU manages I/O and scheduling. IC Role / Device Role / Timing Role: High-speed buffer between processing domains with independent clock domains. Use Value: Enables zero-wait-state data transfer; supports burst reads/writes without pipeline stalls. |
| Military Avionics Sensor Fusion | Medical Imaging Frame Buffer |
Use Scenario: Radar and INS data streams converge into a central fusion processor operating under MIL-STD-810 conditions. IC Role / Device Role / Timing Role: Radiation-tolerant (QML-compliant) shared memory with deterministic arbitration. Use Value: Meets –55°C to +125°C extended industrial spec; ensures fault-free operation during rapid thermal transients. | Use Scenario: Real-time acquisition of ultrasound or MRI frames at >30 fps with concurrent display rendering. IC Role / Device Role / Timing Role: Dual-port frame buffer allowing simultaneous capture (port A) and display scan-out (port B). Use Value: Prevents frame tearing; sustains 55 ns pixel-data throughput without external FIFO or controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV25 | 2K × 16 organization, 25 ns access, 3.3V core with 5V-tolerant I/O | Requires voltage translation for pure 5V systems; larger memory but incompatible pinout | Select only if migrating to 3.3V architecture and needing wider data bus |
| AS7C31026B-55JIN | Single-port SRAM, 55 ns, 128K × 16, no arbitration or BUSY logic | No hardware arbitration; requires external logic or software protocol for multi-CPU access | Use only in non-contention scenarios where one controller owns memory exclusively |
Compared with CY7C1362BV25 and AS7C31026B-55JIN, the 7130SA55TF uniquely delivers 5V-native dual-port arbitration in a compact 64-pin TQFP - making it irreplaceable for legacy industrial systems requiring plug-in compatibility and deterministic contention resolution.
Availability
7130SA55TF is available at Aetrix Electronics and suitable for industrial PLCs, avionics subsystems, medical imaging controllers, and real-time DSP co-processing applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 7130SA55TF 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 solutions, now part of Renesas Electronics.
The 7130SA55TF belongs to IDT's legacy dual-port SRAM product line, designed specifically for deterministic shared-memory architectures in military, industrial, and communications equipment where hardware arbitration and 5V interoperability are mandatory.
FAQ
What is the maximum access time specification for the 7130SA55TF?
The 7130SA55TF has a maximum access time of 55 ns, measured as tAA (address access time), tACE (chip enable access time), and tAOE (output enable access time) under industrial temperature conditions (–40°C to +85°C) and VCC = 5.0 V ±10%. This value is guaranteed across the full operating range and applies to both read and write cycles.
Does the 7130SA55TF support battery backup data retention?
No, the 7130SA55TF does not support battery backup data retention. That feature is exclusive to LA-suffixed variants (e.g., 7130LA55TF), which guarantee data retention down to 2.0 V. The 'SA' suffix denotes standard active power consumption (550 mW typ.) without low-voltage retention circuitry.
How many power and ground pins does the 7130SA55TF have in its TQFP-64 package?
The 7130SA55TF in the PNG64 (64-pin TQFP) package has four VCC pins (pins 32, 48, 63, 64) and two GND pins (pins 33 and 49). This distribution supports low-noise power delivery and robust grounding for high-speed dual-port operation, consistent with IDT's layout recommendations for signal integrity.
Can the 7130SA55TF operate as a SLAVE device in a MASTER/SLAVE configuration?
No, the 7130SA55TF is strictly a MASTER device. It contains on-chip arbitration logic and drives BUSY outputs. SLAVE functionality - including BUSY input behavior and absence of arbitration - is implemented only in the IDT7140 series. Using 7130SA55TF as a SLAVE would violate timing and functional specifications.
What is the function of the INTL and INTR pins on the 7130SA55TF?
The INTL (pin 25) and INTR (pin 27) pins are open-drain interrupt flags used for inter-port communication. Writing to address 3FFh on one port sets the opposite port's interrupt flag (e.g., writing to right port address 3FFh asserts INTL), and writing to 3FEh clears it. Both require external pull-up resistors to VCC for proper logic-level operation.
7130SA55TF 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:
- 8Kbit
- Memory Organization:
- 1K 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (10x10)
7130SA55TF FAQ
1.How can I place an order for 7130SA55TF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA55TF 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 7130SA55TF reliable?
The price and inventory of 7130SA55TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA55TF is usually 5 days.
3.What payment methods are accepted for 7130SA55TF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA55TF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA55TF?
7130SA55TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA55TF 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 7130SA55TF?
For technical support, including 7130SA55TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA55TF requirements.
6.How does Aetrix verify that 7130SA55TF is sourced from the original manufacturer or authorized distributors?
All 7130SA55TF 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 7130SA55TF meets industry standards.
7.What is the process for return or replacement of 7130SA55TF?
All 7130SA55TF units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA55TF, 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 7130SA55TF part is unused and in its original packaging.
Return procedure for 7130SA55TF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA55TF Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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