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Renesas 7132LA20JG
- Part No.:
- 7132LA20JG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132LA20JG.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:110
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Product details
Overview
IDT7132LA20JG from Integrated Device Technology (IDT) is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag, and battery-backed data retention at 2V. It supports independent asynchronous read/write access on left and right ports, operates on single 5V ±10% supply, and targets real-time inter-processor communication in industrial control systems.
For engineers reviewing the IDT7132LA20JG datasheet, IDT7132LA20JG pinout, IDT7132LA20JG application, or IDT7132LA20JG equivalent, key selection considerations include 20ns read cycle time, 1mW standby power, open-drain BUSY outputs requiring 270Ω pull-up, 48-pin flatpack package, and master/slave expansion capability for 16-bit+ memory width.
Technical Context
The IDT7132LA20JG implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs-open-drain signals that inhibit writes when both ports access the same memory location simultaneously. Its arbitration logic ignores read/write direction and triggers based solely on timing alignment of CE and address transitions.
As a MASTER device, it features dedicated BUSY outputs (not inputs), on-chip arbitration logic (absent in SLAVE IDT7142), and supports battery backup operation down to 2V for data retention-functionality exclusive to LA variants and not available in SA versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits = 16,384 bits; sufficient for small real-time buffers or register-file emulation in embedded controllers. |
| Read Cycle Time | 20 ns max; enables 50 MHz sustained memory access in high-throughput inter-processor links. |
| Standby Current | 1 mA max (ISB3, full CMOS standby); enables ultra-low-power hold mode during system sleep states. |
| Data Retention Voltage | 2.0 V min; allows operation from backup coin cell or supercapacitor during main power loss. |
| Supply Voltage | 4.5–5.5 V; TTL-compatible single-supply interface eliminates level-shifting in legacy 5V systems. |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments including factory automation and motor drives. |
| Package | 48-pin flatpack (FP48); hermetically sealed, low-profile package suitable for high-reliability PCB layouts. |
Pinout & Package
Package: 48-pin flatpack (FP48), body dimensions ≈ 0.75 in × 0.75 in × 0.11 in, hermetic ceramic construction with side-braze leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Both pins must be connected to system ground plane; failure causes logic instability or excessive ICC. |
| VCC (Pin 25) | Power supply | Single 5V ±10% supply; all VCC pins require local 0.1 µF ceramic decoupling within 1 cm. |
| BUSYL / BUSYR (Pins 12, 37) | Open-drain BUSY flags | Require external 270Ω pull-up to VCC; LOW indicates port contention; used to stall CPU or DMA writes. |
| CEL / CER (Pins 3, 4) | Chip enable (left/right) | Active-low enables respective port; VIH = 2.2V min ensures noise margin in noisy industrial settings. |
| OEL / OER (Pins 5, 42) | Output enable (left/right) | Active-low controls I/O drivers; HIGH places I/Os in high-Z state for bus sharing. |
| R/WL / R/WR (Pins 11, 38) | Read/write control (left/right) | LOW = write, HIGH = read; determines data flow direction on enabled port. |
| A0L–A10L / A0R–A10R (Pins 6–10, 39–41, 13–15, 33–36) | Address inputs | 11-bit address per port selects one of 2048 locations; no internal latching-address must be stable before CE assertion. |
| I/O0L–I/O7L / I/O0R–I/O7R (Pins 16–23, 26–32, 34–35, 43–48) | Data I/O bidirectional | 8-bit parallel data path per port; driven by internal drivers during read, high-Z during write unless OE active. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Eliminates need for external glue logic in dual-CPU systems; resolves contention via hardware timing comparison of CE/address edges. |
| Open-drain BUSY outputs with 270Ω pull-up requirement | Enables wired-OR expansion across multiple MASTER devices without external gates-critical for wide-memory arrays. |
| 2V data retention (LA only) | Preserves memory contents during brown-out or controlled shutdown; verified at TA = +25°C, not production tested but guaranteed. |
| Independent port power-down via CE | Each port enters low-power standby (1 mA max) when its CE = VIH, enabling asymmetric power management in asymmetric workloads. |
| TTL-compatible 5V operation | Direct interface with legacy microcontrollers, FPGAs, and ASICs without level shifters-reduces BOM count and layout complexity. |
Applications
| Real-Time Inter-Processor Communication | Dual-CPU Data Exchange Buffer |
|---|---|
Use Scenario: Two independent CPUs share status, command, and sensor data in deterministic time-critical loops (e.g., motion controller + safety monitor). IC Role / Device Role / Timing Role: MASTER IDT7132LA20JG acts as shared memory hub with hardware arbitration preventing simultaneous writes to same address. Use Value: 20ns access time ensures sub-microsecond data exchange; BUSY signaling avoids software polling and guarantees atomic updates. | Use Scenario: One CPU handles user interface while another manages motor control; both require low-latency access to shared configuration tables. IC Role / Device Role / Timing Role: Dual-port SRAM serves as non-blocking buffer-CPU A reads while CPU B writes without mutual exclusion locks. Use Value: Independent left/right ports eliminate bus turnaround delay; 1mW standby current extends battery life in portable industrial HMIs. |
| Industrial PLC Memory Expansion | Redundant Control System Shared Memory |
Use Scenario: Programmable Logic Controller expands I/O mapping table beyond on-chip RAM using external dual-port memory. IC Role / Device Role / Timing Role: IDT7132LA20JG functions as MASTER in width-expanded array with IDT7142 SLAVEs to achieve 16-bit data bus. Use Value: On-chip arbitration prevents data corruption during concurrent scan cycles; 2V retention preserves ladder logic state during power interruption. | Use Scenario: Safety-critical system uses two independent controllers cross-checking decisions; shared memory stores synchronized timestamps and fault logs. IC Role / Device Role / Timing Role: Dual-port RAM provides lock-free, timestamped data exchange between primary and backup controllers. Use Value: Hardware BUSY logic ensures write atomicity without software overhead; industrial temperature rating (–40°C to +85°C) ensures reliability in harsh cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-25JC | 2K × 8, 25ns access, 5V, 48-pin DIP; no BUSY arbitration logic; requires external logic for contention resolution. | Lacks integrated arbitration-suitable only where software-managed access or external arbiter is acceptable. | Select when cost sensitivity outweighs need for hardware arbitration and 20ns speed is not required. |
| IDT7142LA20JG | SLAVE-only variant; BUSY pins are inputs (not outputs); no on-chip arbitration logic; identical timing and retention specs. | Used only in width-expansion configurations paired with IDT7132; cannot operate standalone as MASTER. | Choose only when building multi-chip 16-bit+ memory arrays with IDT7132LA20JG as MASTER. |
Compared with CY7C133-25JC, IDT7132LA20JG delivers hardware arbitration and 5ns faster access but requires careful BUSY signal routing; versus IDT7142LA20JG, it provides MASTER functionality essential for standalone dual-CPU buffering without external coordination logic.
Availability
IDT7132LA20JG is available at Aetrix Electronics and suitable for industrial PLCs, real-time motion controllers, redundant safety systems, and dual-CPU embedded platforms requiring stable component supply, long-term lifecycle support, and MIL-PRF-38535 QML-compliant reliability.
Supply support for IDT7132LA20JG 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
Integrated Device Technology (IDT) is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.
IDT7132LA20JG belongs to the IDT7132/7142 dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in industrial and military systems requiring hardware-enforced memory coherency.
FAQ
What is the maximum operating speed of the IDT7132LA20JG?
The IDT7132LA20JG has a maximum read cycle time of 20 ns, supporting up to 50 MHz sustained memory access. This speed is guaranteed over the full industrial temperature range (–40°C to +85°C) and applies to both ports independently. The 20 ns specification covers tRC, tAA, tACE, and tAOE parameters under standard AC test conditions (VCC = 5.0 V ±10%, load per Figure 2).
Does the IDT7132LA20JG support battery backup operation?
Yes, the IDT7132LA20JG supports battery backup data retention at 2.0 V minimum supply voltage-a feature exclusive to LA variants. During VCC dropout, the device retains stored data with ICCDR ≤ 4000 µA (military/industrial) or ≤ 1500 µA (commercial). This is guaranteed but not production tested per datasheet Table 6.
How are the BUSY pins used on the IDT7132LA20JG?
The IDT7132LA20JG features two open-drain BUSY outputs-BUSYL (Pin 12) and BUSYR (Pin 37)-that require external 270Ω pull-up resistors to VCC. When asserted LOW, they indicate port contention on the respective side and internally inhibit writes. These signals are used to stall external controllers or trigger interrupts, enabling hardware-coordinated access without software polling.
Can the IDT7132LA20JG be used without the BUSY arbitration feature?
Yes, the IDT7132LA20JG can operate without BUSY arbitration by tying BUSYL and BUSYR to VCC via the 270Ω pull-ups and ignoring their states. In this mode, simultaneous writes to the same address result in undefined data-so software must ensure exclusive access. The arbitration logic remains active but has no effect unless BUSY signals are connected and monitored in the system design.
What package type is used for the IDT7132LA20JG?
The IDT7132LA20JG is packaged in a 48-pin flatpack (FP48) with hermetic ceramic construction and side-braze leads. Its dimensions are approximately 0.75 in × 0.75 in × 0.11 in. This package provides superior thermal performance and reliability for industrial and military applications compared to plastic DIP or PLCC alternatives.
7132LA20JG 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:
- 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)
7132LA20JG FAQ
1.How can I place an order for 7132LA20JG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA20JG 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 7132LA20JG reliable?
The price and inventory of 7132LA20JG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA20JG is usually 5 days.
3.What payment methods are accepted for 7132LA20JG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA20JG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA20JG?
7132LA20JG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA20JG 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 7132LA20JG?
For technical support, including 7132LA20JG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA20JG requirements.
6.How does Aetrix verify that 7132LA20JG is sourced from the original manufacturer or authorized distributors?
All 7132LA20JG 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 7132LA20JG meets industry standards.
7.What is the process for return or replacement of 7132LA20JG?
All 7132LA20JG units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA20JG, 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 7132LA20JG part is unused and in its original packaging.
Return procedure for 7132LA20JG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA20JG Tags
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