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Renesas 7132LA20JG8
- Part No.:
- 7132LA20JG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132LA20JG8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,176
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Product details
Overview
7132LA20JG8 from IDT is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag (open-drain), 20 ns max read cycle time, 2 V data retention capability, and industrial temperature range (–40°C to +85°C). It enables full-speed 16-bit-or-more memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control and digital signal processing systems.
For engineers reviewing the 7132LA20JG8 datasheet, 7132LA20JG8 pinout, 7132LA20JG8 application, or 7132LA20JG8 equivalent, key selection considerations include BUSY arbitration timing (tBAA ≤ 20 ns), low-power standby current (ISB3 = 0.2 mA typ.), battery backup support, and compatibility with 48-pin flatpack (JG) packaging for space-constrained industrial PCB layouts.
Technical Context
The 7132LA20JG8 implements independent left/right port access with separate address, control, and I/O buses, enabling true asynchronous concurrent read/write operations. Its on-chip arbitration logic resolves contention via BUSY assertion-triggered by address match between ports-and enforces deterministic priority based on tAPS (5 ns setup).
This device uses CMOS process technology to achieve 325 mW typical active power and 1 mW typical standby power (ISB3), with dedicated 2 V data retention mode for LA variants. The open-drain BUSY outputs require external 270 Ω pull-up resistors and are not present on SLAVE counterparts like IDT7142.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit wide), providing 16 KB addressable space per port |
| Access Time | 20 ns max read cycle time (tRC), enabling operation up to 50 MHz in synchronous bus environments |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V), TTL-compatible single-supply interface with no level-shifting required |
| Standby Current | 0.2 mA typical (ISB3), supporting ultra-low-power hold mode during system sleep states |
| Data Retention | 2 V minimum VCC for data retention, allowing backup from coin-cell batteries without external regulators |
| Operating Temp | –40°C to +85°C industrial grade, qualified for extended-life deployment in motor drives and PLCs |
| Package | 48-lead flatpack (JG), hermetically sealed, 0.75″ × 0.75″ footprint with 0.11″ height for ruggedized mounting |
Pinout & Package
48-pin flatpack (JG) package with side-braze construction, compliant with MIL-PRF-38535 QML for high-reliability applications. All VCC and GND pins must be externally decoupled; BUSY pins require 270 Ω pull-up resistors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Two dedicated ground pins ensure stable return path for both ports' I/O and core logic |
| VCC (Pin 25) | Power supply | Single 5 V supply powers entire device; all VCC pins must be connected and decoupled locally |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down entry/exit (ISB1–ISB4 modes) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z state prevents bus contention during idle cycles |
| R/WL / R/WR | Read/write control (left/right) | Active-low initiates write; high enables read; determines direction of data flow on I/O lines |
| BUSYL / BUSYR | BUSY flag (output only) | Open-drain outputs indicating address contention; require external 270 Ω pull-up to VCC |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses select one of 2048 locations independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | 8-bit parallel data paths; direction controlled by R/W and OE signals per port |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access deterministically using tAPS (5 ns setup), eliminating need for external glue logic |
| Master-only BUSY output | Open-drain BUSYL/BUSYR flags provide hardware stall signaling to external controllers without software polling |
| Battery backup support | Retains data at 2 V VCC-enables seamless transition to backup power during main supply failure |
| Low-power standby mode | 0.2 mA ISB3 current allows >1-year coin-cell life in always-on monitoring applications |
| Industrial temperature rating | Qualified from –40°C to +85°C with full parameter guarantee, suitable for under-hood automotive ECUs |
Applications
| Motor Control Feedback Buffer | Digital Signal Processor Co-Processor Memory |
|---|---|
Use Scenario: Real-time capture of encoder position and current sensor data in servo drives with simultaneous access by FPGA motion controller and ARM-based safety monitor. IC Role / Device Role / Timing Role: MASTER dual-port SRAM buffers time-critical feedback streams; BUSY arbitration prevents corrupted writes during concurrent reads by safety watchdog. Use Value: Eliminates software synchronization overhead and guarantees atomic 16-bit word updates across domains using hardware arbitration. |
Use Scenario: Shared memory between TI C6000 DSP and Xilinx Zynq SoC in radar beamforming systems requiring low-latency coefficient exchange. IC Role / Device Role / Timing Role: 20 ns access enables full utilization of DSP's EMIF bandwidth; 2 V retention preserves calibration tables during power cycling. Use Value: Enables deterministic inter-processor communication without DMA arbitration logic or cache coherency protocols. |
| Programmable Logic Controller Data Table | Avionics Sensor Fusion Hub |
Use Scenario: Storing ladder logic I/O mapping tables and real-time process variables in industrial PLCs with redundant CPU modules. IC Role / Device Role / Timing Role: MASTER SRAM provides non-blocking read access to primary CPU while secondary CPU performs diagnostics via BUSY-gated writes. Use Value: Ensures continuous I/O scanning during firmware updates without scan interruption or data loss. |
Use Scenario: Aggregating inertial measurement unit (IMU), GPS, and barometric pressure data in UAV flight controllers with dual-core ARM Cortex-M7 processors. IC Role / Device Role / Timing Role: Dual-port architecture allows one core to write raw sensor frames while the other runs Kalman filter algorithms on prior frame. Use Value: Achieves sub-millisecond latency between sensor acquisition and state estimation without shared bus bottlenecks. |
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 CY7C1371DV33-200BZI | 2.5 V core, 165 BGA, 200 MHz DDR interface, no built-in BUSY arbitration | Requires external logic for contention resolution; suited for high-bandwidth video buffering, not legacy 5 V industrial control | Select if migrating to modern low-voltage designs with FPGA-based arbitration; not drop-in compatible |
| IDT7142LA20JG8 | SLAVE-only variant: BUSY pins are inputs (not outputs); no on-chip arbitration logic | Must be used with IDT7132 master in width-expanded configurations; cannot operate standalone as memory controller | Choose only when building 16-bit+ memory arrays where 7132LA20JG8 serves as master and multiple 7142LA20JG8 act as slaves |
Compared with CY7C1371DV33-200BZI, the 7132LA20JG8 offers native 5 V operation and hardware BUSY arbitration but lower bandwidth; compared with IDT7142LA20JG8, it provides autonomous master functionality essential for single-device implementations in motion control and safety-critical buffers.
Availability
7132LA20JG8 is available at Aetrix Electronics and suitable for motor control feedback buffers, programmable logic controller data tables, and avionics sensor fusion hubs requiring stable component supply across extended product lifecycles.
Supply support for 7132LA20JG8 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, and RF solutions, now part of Renesas Electronics since 2019.
The IDT7132/7142 product line was designed for deterministic, low-latency memory sharing between heterogeneous processors in industrial automation, aerospace, and test equipment-prioritizing hardware arbitration and battery-backed reliability over raw density or speed.
FAQ
What is the function of BUSYL and BUSYR on the 7132LA20JG8?
BUSYL and BUSYR are open-drain output pins unique to the MASTER 7132LA20JG8 that assert low when address contention occurs between left and right ports. They require external 270 Ω pull-up resistors to VCC and serve as hardware stall signals to external controllers-preventing invalid writes without software intervention. These pins are inputs on SLAVE IDT7142 devices.
Does the 7132LA20JG8 support true simultaneous read/write operations?
Yes-the 7132LA20JG8 supports fully independent asynchronous access: one port can read while the other writes to any memory location. When both ports access the same address, on-chip arbitration logic asserts BUSY to stall the later-arriving write, ensuring data integrity. This behavior is guaranteed by tAPS (5 ns setup) and tBDD (≤25 ns) timing parameters.
Can the 7132LA20JG8 operate without external pull-up resistors on BUSY pins?
No-BUSYL and BUSYR are open-drain outputs and will not drive high without external 270 Ω pull-up resistors to VCC, as specified in the datasheet. Omitting these resistors results in undefined BUSY logic levels, causing unreliable arbitration and potential data corruption during contention events. This requirement applies only to MASTER devices like the 7132LA20JG8.
How does the 2 V data retention feature work in the 7132LA20JG8?
The 7132LA20JG8 maintains stored data when VCC drops to 2.0 V (minimum), drawing only 100 µA typical ICCDR current. This enables direct connection to lithium coin cells or supercapacitors for backup power-no voltage regulation or switching circuitry is needed. Data retention is guaranteed but not production-tested per datasheet Table 6.
Is the 7132LA20JG8 pin-compatible with other members of the IDT7132/7142 family?
The 7132LA20JG8 shares identical 48-pin flatpack (JG) pinout with all IDT7132XxxJG8 variants (e.g., 7132SA20JG8) and IDT7142XxxJG8 SLAVE devices. However, functional differences exist: BUSY pins are outputs on 7132LA20JG8 but inputs on IDT7142, and arbitration logic is present only in MASTER parts. Electrical compatibility requires matching speed grade and LA/SA suffix.
7132LA20JG8 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:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 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)
7132LA20JG8 FAQ
1.How can I place an order for 7132LA20JG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA20JG8 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 7132LA20JG8 reliable?
The price and inventory of 7132LA20JG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA20JG8 is usually 5 days.
3.What payment methods are accepted for 7132LA20JG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA20JG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA20JG8?
7132LA20JG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA20JG8 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 7132LA20JG8?
For technical support, including 7132LA20JG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA20JG8 requirements.
6.How does Aetrix verify that 7132LA20JG8 is sourced from the original manufacturer or authorized distributors?
All 7132LA20JG8 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 7132LA20JG8 meets industry standards.
7.What is the process for return or replacement of 7132LA20JG8?
All 7132LA20JG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA20JG8, 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 7132LA20JG8 part is unused and in its original packaging.
Return procedure for 7132LA20JG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA20JG8 Tags
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