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Renesas 7130LA55JG8/2930
- Part No.:
- 7130LA55JG8/2930
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130LA55JG8/2930.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,765
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Product details
Overview
7130LA55JG8/2930 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 read/write cycle time, 1 mA typical standby current (LA version), and battery-backed data retention down to 2 V. It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130LA55JG8/2930 datasheet, 7130LA55JG8/2930 pinout, 7130LA55JG8/2930 application, or 7130LA55JG8/2930 equivalent, key selection considerations include BUSY-flag arbitration timing (tBAA ≤ 30 ns), INT flag port-to-port signaling, dual independent asynchronous access, and industrial temperature support (–40°C to +85°C).
Technical Context
The 7130LA55JG8/2930 implements fully asynchronous dual-port operation with separate address, control, and I/O buses for left (L) and right (R) ports. Its on-chip arbitration logic resolves contention via open-drain BUSYL/BUSYR outputs requiring external pull-ups, and supports priority-based write inhibition when address matches occur.
It features TTL-compatible 5 V ±10% single-supply operation, automatic power-down controlled by CE/CER, and battery backup capability enabling 2 V data retention - a defining characteristic of the LA variant confirmed in Table 07. The device is not a slave-only component and does not accept BUSY as input; BUSY signals are output-only on this MASTER part.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), supporting independent concurrent access from two ports |
| Access Time | 55 ns max (tAA, tACE, tAOE), enabling integration into 18 MHz synchronous bus systems |
| Standby Current | 1 mA typical (ISB3, CMOS-level CE inputs), critical for low-power battery-backed operation |
| Data Retention | 2 V minimum VCC (VDR), allowing retention during brown-out or backup-battery mode |
| Operating Temp | –40°C to +85°C (industrial grade), validated per MIL-PRF-38535 QML for reliability-critical use |
| Supply Voltage | 4.5 V to 5.5 V (VCC), TTL-compatible with standard 5 V logic families |
| Arbitration Logic | On-chip port arbitration with tAPS = 5 ns setup, eliminating need for external glue logic in MASTER/SLAVE configs |
Pinout & Package
7130LA55JG8/2930 is supplied in a 48-pin ceramic flatpack (FP48) package measuring approximately 0.75 in × 0.75 in × 0.11 in, with all VCC and GND pins requiring direct connection to respective supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25) | Ground reference | Three dedicated ground pins ensure low-noise return paths for both ports and reduce switching noise coupling |
| VCC (Pins 23, 48) | Power supply | Dual VCC pins provide distributed power delivery and reduce IR drop across the die |
| CEL / CER | Chip enable (left/right) | Independent active-low enables allow selective port activation and precise power gating per port |
| OEL / OER | Output enable (left/right) | Separate OE controls permit high-impedance tri-state management per port without affecting the other |
| R/WL / R/WR | Read/write direction (left/right) | Asynchronous R/W control enables true read-modify-write cycles without bus turnaround delay |
| BUSYL / BUSYR | Arbitration flag output (open drain) | Indicates port contention; requires external pull-up resistor to function as write-inhibit signal |
| INTL / INTR | Interrupt flag (open drain) | Signals inter-port events (e.g., flag set/clear at address 3FF/3FE); needs pull-up for logic-HIGH default |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit addressing per port supports full 1K memory map access independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Bi-directional data (left/right) | True dual-port I/O allows simultaneous read-from-one-port/write-to-other-port operations |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates external priority encoder or discrete logic for MASTER/SLAVE memory expansion |
| Battery backup data retention | Enables nonvolatile operation at 2 V, supporting fail-safe state preservation during main power loss |
| Open-drain BUSY and INT outputs | Allows wired-OR interrupt or arbitration bus sharing across multiple dual-port devices |
| Independent port power-down | Per-port CE control enables asymmetric power states - e.g., one port active while the other sleeps |
| Industrial temperature range | Validated operation from –40°C to +85°C ensures reliability in harsh environments like motor drives or base stations |
Applications
| Real-Time Motor Control | Digital Signal Processing Buffer |
|---|---|
Use Scenario: Coordinating FPGA-based motion profiling and microcontroller-based safety monitoring in servo drives. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as shared register bank between control and safety domains with deterministic BUSY-flag arbitration. Use Value: Enables lock-free, cycle-accurate data exchange without software semaphores or CPU intervention. | Use Scenario: Storing intermediate FFT coefficients between pipeline stages in radar signal processors. IC Role / Device Role / Timing Role: Provides simultaneous read (by downstream stage) and write (by upstream stage) access to same memory location with hardware-enforced collision avoidance. Use Value: Eliminates pipeline stalls caused by memory contention, sustaining >95% utilization of DSP compute resources. |
| Avionics Data Logger | Industrial PLC I/O Mapping |
Use Scenario: Capturing flight sensor data at 10 kHz while allowing ground-station readout via separate interface port. IC Role / Device Role / Timing Role: MASTER SRAM buffers incoming ADC streams on left port while exposing logged data over right port to ARINC-429 interface logic. Use Value: Guarantees uninterrupted capture during readout thanks to independent asynchronous ports and 2 V data retention. | Use Scenario: Synchronizing digital I/O state updates between PLC CPU and fieldbus controller in modular automation systems. IC Role / Device Role / Timing Role: Acts as deterministic handshake memory where CPU writes new output states and fieldbus reads prior states using INT flag signaling. Use Value: Prevents metastability and race conditions in distributed I/O updates across clock domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-55JC | 55 ns access, 5 V, 1K × 8, but no on-chip arbitration logic or BUSY output; requires external logic for MASTER/SLAVE coordination | Lacks native port-to-port contention resolution - unsuitable for systems requiring hardware arbitration without added components | Select only if arbitration is handled externally and footprint compatibility with 48-pin SOIC is required |
| AS7C31025B-55PCN | 55 ns, 1M × 8, 3.3 V core; no BUSY/INT flags, no battery retention, no dual-port arbitration logic | Single-port architecture - cannot replace dual-port functionality; incompatible voltage and feature set | Not a functional alternative; only consider for cost-sensitive, non-dual-port memory upgrades |
Compared with CY7C131-55JC and AS7C31025B-55PCN, the 7130LA55JG8/2930 uniquely delivers integrated arbitration, open-drain BUSY/INT signaling, and 2 V data retention - making it irreplaceable in deterministic real-time dual-access systems where hardware-enforced coherency is mandatory.
Availability
7130LA55JG8/2930 is available at Aetrix Electronics and suitable for real-time motor control, avionics data logging, industrial PLC I/O mapping, and digital signal processing buffer applications requiring stable component supply and long-term industrial-grade availability.
Supply support for 7130LA55JG8/2930 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 IDT7130 product line was designed specifically for deterministic, low-latency dual-port memory expansion in real-time embedded systems - emphasizing hardware arbitration, battery backup, and industrial temperature resilience.
FAQ
What is the maximum operating temperature range for the 7130LA55JG8/2930?
The 7130LA55JG8/2930 is rated for industrial temperature operation from –40°C to +85°C, verified per MIL-PRF-38535 QML requirements. This specification is explicitly confirmed in Table 03 of the official datasheet and applies to all LA-speed variants including the 55 ns version. Operation outside this range may compromise data retention or arbitration timing margins.
Does the 7130LA55JG8/2930 support battery backup, and what voltage is required?
Yes, the 7130LA55JG8/2930 supports battery backup with guaranteed data retention down to 2.0 V (VDR), as specified in Table 07. This is a defining feature of the LA variant - the SA version does not offer this capability. At 2 V, typical data retention current is 100 µA (military/industrial grade), enabling multi-year backup with small coin cells.
How does the BUSY arbitration logic work on the 7130LA55JG8/2930?
The 7130LA55JG8/2930 implements on-chip arbitration with open-drain BUSYL and BUSYR outputs. When address contention occurs, the port asserting CE first wins; the losing port's BUSY signal goes LOW (requiring external pull-up), inhibiting writes. Timing parameters tBAA (≤30 ns) and tAPS (5 ns setup) govern this behavior - confirmed in Tables 11a/b and Figure 12.
Can the 7130LA55JG8/2930 be used as a SLAVE device in a MASTER/SLAVE configuration?
No, the 7130LA55JG8/2930 is exclusively a MASTER device. It features BUSY outputs and arbitration logic, whereas SLAVE operation (e.g., IDT7140) requires BUSY inputs and lacks internal arbitration. Attempting to use 7130LA55JG8/2930 as a SLAVE violates functional intent and pin behavior - BUSYL/BUSYR are outputs only, not inputs.
What package type is used for the 7130LA55JG8/2930, and are there lead-free options?
The 7130LA55JG8/2930 uses a 48-pin ceramic flatpack (FP48) package, with dimensions approximately 0.75 in × 0.75 in × 0.11 in. Green (lead-free) variants are available per ordering information in the datasheet - the "JG8" suffix indicates ceramic flatpack, and "2930" denotes the industrial temperature, 55 ns, LA-version configuration.
7130LA55JG8/2930 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 52-PLCC (19.13x19.13)
7130LA55JG8/2930 FAQ
1.How can I place an order for 7130LA55JG8/2930 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA55JG8/2930 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 7130LA55JG8/2930 reliable?
The price and inventory of 7130LA55JG8/2930 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA55JG8/2930 is usually 5 days.
3.What payment methods are accepted for 7130LA55JG8/2930?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA55JG8/2930 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA55JG8/2930?
7130LA55JG8/2930 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA55JG8/2930 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 7130LA55JG8/2930?
For technical support, including 7130LA55JG8/2930 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA55JG8/2930 requirements.
6.How does Aetrix verify that 7130LA55JG8/2930 is sourced from the original manufacturer or authorized distributors?
All 7130LA55JG8/2930 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 7130LA55JG8/2930 meets industry standards.
7.What is the process for return or replacement of 7130LA55JG8/2930?
All 7130LA55JG8/2930 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA55JG8/2930, 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 7130LA55JG8/2930 part is unused and in its original packaging.
Return procedure for 7130LA55JG8/2930:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA55JG8/2930 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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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24C04C-SSHM-T
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