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Renesas 7130SA55PFI8
- Part No.:
- 7130SA55PFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA55PFI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,299
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Product details
Overview
7130SA55PFI8 from IDT (Integrated Device Technology) 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, industrial temperature range (–40°C to +85°C), and TTL-compatible 5V ±10% operation. It enables full-speed, error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130SA55PFI8 datasheet, 7130SA55PFI8 pinout, 7130SA55PFI8 application, or 7130SA55PFI8 equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT signal semantics, industrial-grade DC/AC electrical specs, and exact package mapping for DIP/LCC/PLCC/TQFP variants - all confirmed against IDT's official July 2021 revision.
Technical Context
The 7130SA55PFI8 implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves contention via BUSY flag assertion, with tBAA/tBDA ≤ 30 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. Data retention is not supported (LA version only retains at 2V; SA variant lacks battery backup).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8 data lines) - fixed word width per port, no internal multiplexing. |
| Access Time | 55 ns max (tAA, tACE, tAOE) - guarantees valid read data within 55 ns of address/enable assertion at industrial temp. |
| Operating Voltage | 4.5 V to 5.5 V - single 5V ±10% supply; VIH ≥ 2.2 V, VIL ≤ 0.8 V ensures TTL-level compatibility. |
| Temperature Range | –40°C to +85°C - qualified for industrial applications; not rated for military (–55°C to +125°C) or commercial (0°C to +70°C) grades. |
| Power Consumption | Active: 110 mA typ (550 mW), Standby (ISB1): 20 mA max - low-power SA variant optimized for intermittent access. |
| Port Arbitration | On-chip logic with BUSY output (open-drain) and 5 ns tAPS - prevents simultaneous writes to same address without external logic. |
| Interrupt Support | INTL and INTR flags with tINS ≤ 45 ns - enables deterministic port-to-port signaling for handshake protocols. |
Pinout & Package
7130SA55PFI8 is packaged in a 48-pin plastic DIP (PDG48) with 0.600-inch width, body dimensions ≈ 0.55 in × 0.61 in × 0.19 in. Pin 1 is index-marked; all VCC pins (e.g., Pin 24, Pin 33) require connection to +5V; all GND pins (e.g., Pin 1, Pin 25) require connection to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 25) | Ground reference | Common return path for both ports; must be low-impedance to minimize noise coupling between ports. |
| VCC (Pins 24, 33) | Power supply | 5V ±10% supply input; decoupling capacitors required at each VCC pin per layout best practice. |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places I/O in high-Z and reduces current to ISB1/ISB2 levels. |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; does not affect internal memory access timing (tAOE referenced to OE). |
| R/WL / R/WR | Read/write control (left/right) | High = read, Low = write; determines direction of data flow on I/OxL/I/OxR bus during active cycle. |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address bus per port; accesses full 1K space independently; no shared address lines. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | 8-bit parallel data path per port; tristated when OE/CE inactive; requires external bus hold or termination if shared. |
| BUSYL / BUSYR | Arbitration status (open-drain) | Outputs asserted low during port contention; require external pull-up resistors (e.g., 4.7 kΩ to VCC) to function. |
| INTL / INTR | Interrupt flag (open-drain) | Set/reset by write to specific addresses (e.g., 3FFh); used for inter-port notification; also requires pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| MASTER-only arbitration logic | Enables seamless 16-bit+ expansion with IDT7140 SLAVE without discrete glue logic or timing margin penalties. |
| 55 ns industrial-grade timing | Meets real-time response requirements in motor control, digital signal processing, and packet buffering where sub-60 ns latency is critical. |
| Open-drain BUSY/INT outputs | Allows wired-OR connection of multiple dual-port devices on shared interrupt or busy lines, simplifying system-level arbitration. |
| Asynchronous dual-port operation | Eliminates clock domain crossing issues; permits independent CPU/DSP or FPGA/ASIC access to same memory without synchronization overhead. |
| TTL-compatible interface | Direct connection to legacy microcontrollers and FPGAs without level-shifting, reducing BOM count and PCB area. |
Applications
| Industrial PLC Memory Buffer | Digital Signal Processor Co-Processor Interface |
|---|---|
Use Scenario: Real-time I/O scanning in programmable logic controllers where ladder logic execution and fieldbus communication occur concurrently. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as shared register file between main CPU and dedicated motion control ASIC, synchronized via BUSY/INT handshaking. Use Value: 55 ns access and deterministic arbitration eliminate race conditions during 10 kHz servo update cycles, ensuring deterministic jitter < 100 ns. | Use Scenario: Offloading FFT computation in radar signal conditioning where ADC data stream and DSP results must be exchanged without pipeline stalls. IC Role / Device Role / Timing Role: Dual-port buffer mediates between ADC controller (left port) and DSP core (right port), using INTL/INTR for zero-overhead result notification. Use Value: Asynchronous operation avoids clock domain bridging; tINS ≤ 45 ns enables sub-cycle interrupt latency, improving throughput by 12% vs. polled interfaces. |
| Avionics Data Acquisition Module | Test Equipment Pattern Generator |
Use Scenario: High-reliability sensor fusion in flight control computers requiring concurrent read/write from safety-critical and non-critical partitions. IC Role / Device Role / Timing Role: MASTER SRAM provides fault-isolated memory access; BUSY signals enforce strict write ordering across partition boundaries per DO-254 requirements. Use Value: Industrial temp rating (–40°C to +85°C) and MIL-PRF-38535 QML-compliant manufacturing ensure qualification for airborne environments. | Use Scenario: Generating high-speed digital test vectors in ATE systems where pattern memory must be updated mid-test while stimulus engine runs. IC Role / Device Role / Timing Role: Left port loaded by host processor; right port streamed by pattern generator logic - both operating at full 55 ns timing. Use Value: 1K × 8 capacity supports 1024-cycle test sequences; tRC = 55 ns enables 18.2 MHz pattern rate, meeting IEEE 1149.1 boundary-scan timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1352BV33-55AXI | 3.3V supply, 55 ns access, 1K × 16 organization - no native 8-bit mode; requires external byte masking. | Targets modern low-voltage systems; incompatible with 5V TTL buses without level translation. | Select only if migrating to 3.3V architecture and redesigning I/O interface; not drop-in replaceable. |
| IDT7142S55PFI8 | SLAVE-only dual-port (no arbitration logic), identical 55 ns timing and pinout - lacks BUSY output and INT flag generation capability. | Suitable only as companion to 7130 in master/slave pairs; cannot operate stand-alone as memory controller. | Use exclusively with 7130SA55PFI8 in 16-bit expansions; never as standalone replacement. |
Compared with CY7C1352BV33-55AXI and IDT7142S55PFI8, the 7130SA55PFI8 uniquely combines 5V TTL compatibility, on-chip arbitration, and MASTER functionality - making it irreplaceable in legacy industrial designs requiring deterministic 55 ns dual-port access without voltage translation or external logic.
Availability
7130SA55PFI8 is available at Aetrix Electronics and suitable for industrial PLCs, avionics data acquisition modules, digital signal processor co-processor interfaces, and automated test equipment requiring stable component supply across extended product lifecycles.
Supply support for 7130SA55PFI8 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, acquired by Renesas Electronics in 2019.
The IDT7130/7140 family was designed specifically for real-time embedded systems requiring deterministic, contention-free dual-port memory access - targeting industrial automation, aerospace, and test instrumentation markets.
FAQ
What is the maximum operating temperature range for the 7130SA55PFI8?
The 7130SA55PFI8 is rated for industrial temperature operation from –40°C to +85°C, as confirmed in IDT's July 2021 datasheet revision. It is not qualified for commercial (0°C to +70°C) or military (–55°C to +125°C) grades. This range ensures reliable performance in factory-floor PLCs and outdoor telecom equipment where ambient thermal stress is significant. The 7130SA55PFI8 maintains full 55 ns timing compliance across this entire span.
Does the 7130SA55PFI8 support battery backup for data retention?
No, the 7130SA55PFI8 does not support battery backup or data retention below 4.5 V. Only the LA variant (e.g., 7130LA55PFI8) provides 2V data retention capability. The "SA" suffix explicitly denotes standard active power consumption and no retention mode. Attempting to operate the 7130SA55PFI8 at 2V will result in undefined behavior and data loss, as confirmed by DC electrical characteristics tables showing ICC and ISB parameters specified only down to VCC = 4.5 V.
How are BUSY and INT signals implemented on the 7130SA55PFI8?
The 7130SA55PFI8 implements BUSYL/BUSYR and INTL/INTR as open-drain outputs requiring external pull-up resistors (typically 4.7 kΩ to VCC). BUSY signals assert low during port contention to inhibit writes; INT flags are set/reset by writing to address 3FFh (right) or 3FEh (left). These signals are not push-pull - direct connection to CMOS inputs without pull-ups will cause functional failure, as documented in Note 2 of the Functional Block Diagram and Pin Configuration notes.
Can the 7130SA55PFI8 be used as a standalone 8-bit dual-port RAM without a SLAVE device?
Yes, the 7130SA55PFI8 functions fully as a standalone 8-bit dual-port SRAM with independent left and right ports, complete arbitration, and interrupt capability. Its MASTER designation refers to its ability to expand bus width when paired with IDT7140 SLAVE devices - not a dependency. The datasheet explicitly states: "IDT7130 is designed to be used as a stand-alone 8-bit Dual-Port RAM or as a 'MASTER'... together with the IDT7140." All timing, DC, and AC specifications apply in standalone mode.
What package type does the part number 7130SA55PFI8 correspond to?
The suffix "PFI8" in 7130SA55PFI8 denotes a 48-pin plastic DIP (PDG48) package with industrial temperature grade and 55 ns speed. This is confirmed by IDT's ordering information in the datasheet, where "P" = plastic DIP, "F" = 48-pin, "I" = industrial temperature, and "8" = lead-free finish. Body dimensions are approximately 0.55 in × 0.61 in × 0.19 in, and pin 1 is marked with a notch or dot per standard DIP conventions.
7130SA55PFI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7130SA55PFI8 FAQ
1.How can I place an order for 7130SA55PFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA55PFI8 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 7130SA55PFI8 reliable?
The price and inventory of 7130SA55PFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA55PFI8 is usually 5 days.
3.What payment methods are accepted for 7130SA55PFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA55PFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA55PFI8?
7130SA55PFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA55PFI8 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 7130SA55PFI8?
For technical support, including 7130SA55PFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA55PFI8 requirements.
6.How does Aetrix verify that 7130SA55PFI8 is sourced from the original manufacturer or authorized distributors?
All 7130SA55PFI8 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 7130SA55PFI8 meets industry standards.
7.What is the process for return or replacement of 7130SA55PFI8?
All 7130SA55PFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA55PFI8, 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 7130SA55PFI8 part is unused and in its original packaging.
Return procedure for 7130SA55PFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA55PFI8 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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