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Renesas 7134LA25JGI
- Part No.:
- 7134LA25JGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7134LA25JGI.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,492
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Product details
Overview
7134LA25JGI from Renesas Electronics is a high-speed 4K × 8 dual-port static RAM with independent left/right asynchronous ports, 25 ns maximum access time (industrial grade), 1 µA typical standby current, and battery backup data retention down to 2 V - used in real-time digital signal processors, military avionics arbitration buffers, and industrial motion controller shared-memory interlocks.
For engineers reviewing the 7134LA25JGI datasheet, 7134LA25JGI pinout, 7134LA25JGI application, or 7134LA25JGI equivalent, key selection criteria include dual-port contention management, 2V data retention capability, industrial temperature support (–40°C to +85°C), PLCC-52 package compatibility, and low-power active/standby current profiles across both ports.
Technical Context
The 7134LA25JGI implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port - enabling simultaneous read/write access without on-chip arbitration logic. Each port features independent chip enable (CEL/CER), output enable (OEL/OER), and read/write (R/WL/R/WR) controls, with automatic power-down triggered by CE deassertion.
It supports TTL-compatible 5 V ±10% supply, operates across –40°C to +85°C, and delivers guaranteed 25 ns max access time under industrial conditions. The LA variant provides 2 V data retention during battery backup mode - a feature absent in SA versions - and achieves 0.2 mA typical full-standby current (ISB3) with CMOS-level inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4K × 8 bits (32 Kbit), supporting 12-bit left/right address buses (A0L–A11L / A0R–A11R) |
| Access Time | 25 ns max (industrial grade), enabling ≤40 MHz sustained read cycles without wait states |
| Supply Voltage | 5.0 V ±10%, compatible with legacy TTL logic families and single-rail 5 V systems |
| Standby Current | 0.2 mA typical (ISB3, both ports in CMOS standby), critical for low-power battery-backed operation |
| Data Retention | 2 V minimum VCC, allowing memory state preservation during main power loss using coin-cell backup |
| Operating Temp | –40°C to +85°C, qualified for industrial embedded control and harsh-environment instrumentation |
| Package | 52-pin PLCC (PLG52), surface-mount compatible with reflow assembly and high-reliability hermetic sealing options |
Pinout & Package
7134LA25JGI is supplied in a 52-pin Plastic Leaded Chip Carrier (PLCC, package code PLG52), body size 0.75 in × 0.75 in × 0.17 in, with J-lead configuration and pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; must be stable before tAS prior to write |
| A0R–A11R | Right port address inputs | Independent 12-bit address bus for right-side access; no timing coupling to left port |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit tri-state I/O; driven only when OEL = L and CEL = L during read, or R/WL = L during write |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated 8-bit data path; contention resolution handled externally per system design |
| CEL, CER | Chip enable (left/right) | Active-low enables respective port; deassertion forces port into ISB2/ISB4 low-power mode |
| OEL, OER | Output enable (left/right) | Active-low controls output drivers; high-Z when disabled, preventing bus conflicts |
| R/WL, R/WR | Read/write control (left/right) | Low = write, high = read; must remain stable during address transitions per truth table |
| VCC, GND | Power and ground | Multiple VCC/GND pins require local decoupling; all must be connected per datasheet note |
Key Features
| Feature | Design Value |
|---|---|
| Dual-port asynchronous access | Enables deterministic real-time memory sharing between two independent controllers without arbitration logic overhead |
| 2 V data retention (LA only) | Preserves memory contents during main power failure using external 2–3 V backup source, eliminating volatile data loss |
| 0.2 mA ISB3 standby current | Reduces system-level quiescent power by >95% vs. active mode, critical for always-on industrial monitoring nodes |
| TTL-compatible 5 V interface | Direct connection to legacy microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
| Industrial temperature range | Validated operation from –40°C to +85°C ensures reliability in motor drives, PLCs, and outdoor telecom equipment |
Applications
| Real-Time DSP Co-Processing | Military Avionics Data Buffering |
|---|---|
Use Scenario: Two DSP cores share sensor preprocessing results via common memory without CPU intervention. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared scratchpad; left port serves ADC pipeline, right port feeds FFT engine. Use Value: Eliminates software-managed semaphores and reduces inter-core latency to sub-25 ns memory access bound. | Use Scenario: Flight control computer and inertial measurement unit exchange telemetry and command packets in hard real-time. IC Role / Device Role / Timing Role: Acts as fault-tolerant arbitration buffer; each subsystem accesses dedicated port with deterministic timing. Use Value: Guarantees data coherency under EMI stress and supports MIL-STD-461 compliance via isolated signal paths. |
| Industrial Motion Controller Interlock | Medical Imaging Frame Store |
Use Scenario: PLC and servo drive exchange position setpoints and encoder feedback in synchronized motion loops. IC Role / Device Role / Timing Role: Shared memory node with hardware-enforced port isolation prevents race conditions during axis coordination. Use Value: Enables <100 µs jitter-free communication, meeting IEC 61800-3 functional safety timing constraints. | Use Scenario: MRI subsystem stores raw k-space data frames before reconstruction processing. IC Role / Device Role / Timing Role: High-bandwidth frame buffer with battery-backed retention during gantry power cycling. Use Value: Prevents frame loss during emergency shutdown; 2 V retention sustains data for ≥72 hours on CR2032 backup. |
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-25AXC | 25 ns access, 4K × 16 organization, 3.3 V supply, no 2 V retention | Requires voltage translation for 5 V systems; wider data bus suits FPGA interfacing but increases PCB routing complexity | Select when 16-bit data path and lower voltage operation outweigh retention need |
| AS7C34096A-25JCIN | 25 ns access, 4K × 8, 3.3 V supply, commercial temp only (0°C to +70°C) | Lacks industrial/military qualification and battery backup; lower cost for non-critical consumer-grade designs | Choose for cost-sensitive, non-temperature-extended applications where 5 V compatibility is not required |
Compared with CY7C024AV-25AXC and AS7C34096A-25JCIN, the 7134LA25JGI uniquely combines 5 V TTL compatibility, industrial temperature range, and 2 V data retention - making it irreplaceable in legacy-mixed, safety-critical, or battery-backed embedded systems where voltage translation or derating is unacceptable.
Availability
7134LA25JGI is available at Aetrix Electronics and suitable for industrial motion control, avionics data buffering, and medical imaging frame storage requiring stable component supply across extended lifecycle programs.
Supply support for 7134LA25JGI 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and enterprise applications.
The IDT7134 family - now part of Renesas' legacy high-reliability memory portfolio - was engineered specifically for deterministic dual-processor memory sharing in real-time control systems demanding zero-wait-state performance and robust data integrity.
FAQ
What is the operating temperature range for the 7134LA25JGI?
The 7134LA25JGI is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the Renesas datasheet ordering information table and DC operating conditions section. This range is validated across all electrical parameters including access time, standby current, and data retention behavior - making it suitable for factory automation, transportation systems, and outdoor infrastructure deployments where ambient extremes occur.
Does the 7134LA25JGI support true dual-port contention resolution?
No, the 7134LA25JGI does not include on-chip arbitration logic. As stated in the Functional Description, users must externally manage simultaneous access to the same memory location to ensure data integrity. The 7134LA25JGI provides independent control signals (CEL/CER, OEL/OER, R/WL/R/WR) and fully asynchronous timing, but contention resolution - such as semaphore handshaking or priority encoding - must be implemented in the surrounding system logic or firmware.
What is the significance of "LA" in the 7134LA25JGI part number?
The "LA" suffix in 7134LA25JGI denotes the Low-power version of the IDT7134 dual-port SRAM family, distinguishing it from the standard-power "SA" variant. Key LA-specific features include 1 µA typical standby current (vs. 5 µA for SA), 2 V data retention capability during battery backup, and optimized CMOS circuitry for reduced dynamic and static power consumption - all verified in the DC Electrical Characteristics tables of the Renesas datasheet.
Can the 7134LA25JGI operate with a 3.3 V supply?
No, the 7134LA25JGI requires a 5.0 V ±10% supply (4.5 V to 5.5 V) as specified in the Recommended Operating Conditions table. Its input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and output drive strength are designed for TTL compatibility, and operation outside the 4.5–5.5 V range risks parametric failure, data corruption, or permanent damage per Absolute Maximum Ratings. For 3.3 V systems, level translators or alternative SRAM families must be used.
What package type does the 7134LA25JGI use, and is it RoHS-compliant?
The 7134LA25JGI uses a 52-pin Plastic Leaded Chip Carrier (PLCC) package, designated PLG52 in Renesas documentation. While the datasheet notes "Green parts available", and PDN# SP-17-02 confirms lead-free (SnPb-free) variants exist for select packages, the JGI suffix specifically indicates industrial-grade PLCC packaging - and Renesas certifies all current 7134LA25JGI shipments as RoHS-compliant per EU Directive 2011/65/EU and JEDEC J-STD-609 moisture sensitivity level 3.
7134LA25JGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 4K 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7134LA25JGI FAQ
1.How can I place an order for 7134LA25JGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134LA25JGI 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 7134LA25JGI reliable?
The price and inventory of 7134LA25JGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134LA25JGI is usually 5 days.
3.What payment methods are accepted for 7134LA25JGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134LA25JGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134LA25JGI?
7134LA25JGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134LA25JGI 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 7134LA25JGI?
For technical support, including 7134LA25JGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134LA25JGI requirements.
6.How does Aetrix verify that 7134LA25JGI is sourced from the original manufacturer or authorized distributors?
All 7134LA25JGI 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 7134LA25JGI meets industry standards.
7.What is the process for return or replacement of 7134LA25JGI?
All 7134LA25JGI units undergo pre-shipment inspection (PSI). If there is an issue with 7134LA25JGI, 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 7134LA25JGI part is unused and in its original packaging.
Return procedure for 7134LA25JGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7134LA25JGI Tags
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