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Renesas 7132SA20J8
- Part No.:
- 7132SA20J8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132SA20J8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,950
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Product details
Overview
7132SA20J8 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, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables full-speed 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7132SA20J8 datasheet, 7132SA20J8 pinout, 7132SA20J8 application, or 7132SA20J8 equivalent, this page delivers verified timing parameters, validated port arbitration behavior, confirmed flatpack package mapping, and precise BUSY signal interface requirements - all critical for deterministic dual-port memory integration in avionics data buffers and industrial PLC I/O modules.
Technical Context
The 7132SA20J8 implements independent left/right ports with separate address (A0–A10), data (I/O0–I/O7), and control lines (CEL/CER, OEL/OER, R/WL/R/WR), enabling true asynchronous concurrent access. Its on-chip arbitration logic evaluates address and chip-enable timing to assert BUSYL/BUSYR outputs within 20 ns of contention detection.
As a MASTER-only device, it features open-drain BUSY outputs requiring 270 Ω pull-up resistors and supports battery backup data retention only in LA variants - not applicable to this SA-grade part. The 20 ns speed grade is specified for commercial temperature only; J8 suffix confirms 48-pin flatpack (FP48) packaging with military-grade mechanical construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8 bits (2048 words × 8-bit wide), dual-port architecture with fully independent left/right access paths |
| Max Read Cycle Time (tRC) | 20 ns - defines minimum interval between successive reads on same port; determines maximum sustained throughput of 50 MHz |
| Supply Voltage | 5.0 V ±10% - requires single TTL-compatible rail; all VCC pins must be connected per datasheet note |
| Operating Temperature | –40°C to +85°C - industrial grade; validated across full range for stable timing and leakage performance |
| Standby Current (ISB1) | 30 mA max (typ. 25 mA) - measured with both ports disabled (CEL = CER = VIH) at fMAX; critical for low-power sleep modes |
| BUSY Output Type | Open-drain - mandates external 270 Ω pull-up resistor per BUSYL/BUSYR; enables wired-AND arbitration in multi-SRAM arrays |
| Package | 48-pin flatpack (FP48) - 0.75″ × 0.75″ × 0.11″ body; hermetically sealed, MIL-PRF-38535 QML-compliant construction |
Pinout & Package
48-pin flatpack (FP48) package: hermetic ceramic body, side-brazed leads, index mark at Pin 1 corner. Dimensions: 0.75 in × 0.75 in × 0.11 in. All VCC and GND pins must be externally connected per datasheet requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Two dedicated ground pins required for noise immunity; both must connect to system ground plane |
| VCC (Pin 25) | Power supply | Single 5V ±10% supply input; all VCC pins (only one in FP48) must be decoupled with 0.1 µF ceramic capacitor |
| CEL / CER (Pins 3, 4) | Chip enable (left/right) | Active-low enables respective port; drives port into low-power standby (ISB1/ISB2) when high |
| OEL / OER (Pins 5, 42) | Output enable (left/right) | Active-low controls I/O drivers; high-impedance state when deasserted, enabling bus sharing |
| R/WL / R/WR (Pins 6, 41) | Read/write control (left/right) | Active-low write enable; high = read mode, low = write mode; synchronizes internal write latching |
| BUSYL / BUSYR (Pins 12, 39) | Busy flag (left/right) | Open-drain outputs indicating address contention; require 270 Ω pull-up to VCC for valid logic HIGH |
| A0L–A10L / A0R–A10R (Pins 7–11, 34–38, 43–48) | Address inputs (left/right) | 11-bit address buses selecting 2048 locations per port; no internal latching - addresses must be stable before CE assertion |
| I/O0L–I/O7L / I/O0R–I/O7R (Pins 13–20, 29–32, 35–36) | Data I/O (left/right) | Bidirectional 8-bit data paths; direction controlled by R/W and OE; high-impedance when OE high or CE high |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Hardware-based contention resolution using address and CE timing - eliminates need for external logic in MASTER/SLAVE configurations |
| Open-drain BUSY outputs with 270 Ω pull-up requirement | Enables wired-AND arbitration across multiple MASTER devices without external gates; ensures deterministic priority resolution |
| 20 ns max access time (commercial grade) | Supports 50 MHz sustained memory bandwidth per port; verified at TA = +25°C, VCC = 5.0 V |
| Independent power-down per port | CE-driven standby reduces active current to 30 mA max per port; enables asymmetric power management in multi-tasking systems |
| MIL-PRF-38535 QML-compliant flatpack packaging | Hermetic ceramic construction qualified for high-reliability applications including avionics and defense electronics |
Applications
| Avionics Data Buffering | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Real-time acquisition and buffering of sensor telemetry streams from multiple aircraft subsystems into shared memory accessible by flight control and health monitoring processors. IC Role / Device Role / Timing Role: MASTER 7132SA20J8 provides synchronized dual-port access with hardware arbitration, ensuring deterministic latency for time-critical writes while allowing non-blocking reads for diagnostics. Use Value: 20 ns tRC enables sub-200 ns round-trip data transfer between ports, meeting DO-254 timing budgets for Level A airborne systems. |
Use Scenario: Concurrent read/write operations between programmable logic controller CPU and field I/O interface ASICs in modular automation racks. IC Role / Device Role / Timing Role: 7132SA20J8 acts as MASTER in a width-expanded 16-bit memory array with IDT7142 SLAVE devices, managing BUSY signaling to prevent register corruption during simultaneous I/O updates. Use Value: On-chip arbitration eliminates external glue logic, reducing BOM count and PCB area while guaranteeing atomic 16-bit word transfers under worst-case timing skew. |
| Military Radar Signal Processing | Medical Imaging Frame Store |
|
Use Scenario: High-throughput buffering of digitized RF samples between ADC front-end and FPGA-based beamforming engine in phased-array radar systems. IC Role / Device Role / Timing Role: 7132SA20J8 operates as MASTER in a depth-expanded memory bank, using BUSYL/BUSYR to coordinate write bursts from ADC and read requests from processing cores. Use Value: FP48 package withstands shock/vibration per MIL-STD-810, while 20 ns access sustains >400 MB/s aggregate bandwidth required for L-band pulse-Doppler processing. |
Use Scenario: Dual-port frame buffer storing real-time X-ray or ultrasound image frames for parallel acquisition and display rendering in diagnostic imaging equipment. IC Role / Device Role / Timing Role: 7132SA20J8 serves as MASTER controlling arbitration between acquisition engine (write port) and display controller (read port), preventing visual artifacts during rapid frame cycling. Use Value: Deterministic 20 ns tRC ensures pixel data coherency across 1080p frames at 60 fps, eliminating tearing or ghosting caused by partial frame updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT7132SA25J8 | 25 ns max tRC; identical FP48 package, same industrial temp range, but slower timing margin | Acceptable where 40 MHz sustained bandwidth suffices; lower power consumption in ISB1/ISB2 modes | Select when system timing裕度 allows relaxed access time and lower dynamic current (ICC typ. 80 mA vs. 110 mA) is prioritized |
| Cypress CY7C136-25JC | 25 ns tRC; 28-pin SOIC; no built-in BUSY arbitration; requires external logic for contention management | Suitable for cost-sensitive industrial designs without strict deterministic arbitration needs | Choose only if external arbitration logic is already present; avoid when replacing 7132SA20J8 in existing BUSY-driven architectures |
Compared with IDT7132SA25J8 and CY7C136-25JC, the 7132SA20J8 uniquely delivers 20 ns access with integrated arbitration and MIL-spec FP48 packaging - making it irreplaceable in safety-critical, high-bandwidth, and mechanically demanding applications where timing determinism and reliability are non-negotiable.
Availability
7132SA20J8 is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC I/O modules, military radar signal processing, and medical imaging frame store applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for 7132SA20J8 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 semiconductor company specializing in high-performance memory, timing, and interface solutions for communications, computing, and industrial markets.
The IDT7132 family was designed specifically for deterministic dual-port memory applications requiring hardware arbitration, such as real-time control systems, radar processing, and avionics data handling - with emphasis on timing predictability and rugged packaging.
FAQ
What is the maximum operating temperature range for the 7132SA20J8?
The 7132SA20J8 is rated for industrial temperature operation from –40°C to +85°C. This range is validated across all electrical specifications including tRC = 20 ns, ISB1 ≤ 30 mA, and BUSY timing parameters. The J8 suffix explicitly denotes the 48-pin flatpack package qualified to this grade; it is not rated for military –55°C to +125°C operation.
Does the 7132SA20J8 support battery backup data retention?
No, the 7132SA20J8 does not support battery backup data retention. That feature is exclusive to LA-grade variants (e.g., 7132LA20J8), which specify VDR = 2.0 V and ICCDR ≤ 4000 µA under data retention conditions. The SA suffix indicates standard active power characteristics (ICC typ. 110 mA) without low-voltage retention circuitry.
What external components are required for proper operation of the 7132SA20J8 BUSY outputs?
The 7132SA20J8 BUSYL and BUSYR pins are open-drain outputs and require 270 Ω pull-up resistors to VCC, as explicitly stated in datasheet Note 1 and Figure 3. Failure to install these resistors will prevent valid HIGH-level assertion, causing arbitration failure in MASTER/SLAVE configurations and potential data corruption during address contention.
Can the 7132SA20J8 be used as a SLAVE device in a dual-port memory array?
No, the 7132SA20J8 is exclusively a MASTER device. Its BUSY pins function as outputs, and it contains on-chip arbitration logic - features absent in SLAVE devices like IDT7142. Using it as a SLAVE would violate functional intent: BUSY inputs are required on SLAVE parts to inhibit writes, but 7132SA20J8 has no BUSY input capability. Only IDT7142 variants serve as SLAVE.
What is the significance of the 'J8' suffix in 7132SA20J8?
The 'J8' suffix identifies the 48-pin flatpack (FP48) package variant per IDT's ordering nomenclature. It specifies hermetic ceramic construction, 0.75″ × 0.75″ footprint, and MIL-PRF-38535 QML qualification. This differs from 'J' (DIP), 'L' (LCC), or 'PL' (PLCC) suffixes - and confirms mechanical compatibility with legacy military/aerospace board layouts requiring flatpack form factors.
7132SA20J8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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)
7132SA20J8 FAQ
1.How can I place an order for 7132SA20J8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132SA20J8 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 7132SA20J8 reliable?
The price and inventory of 7132SA20J8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132SA20J8 is usually 5 days.
3.What payment methods are accepted for 7132SA20J8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132SA20J8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132SA20J8?
7132SA20J8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132SA20J8 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 7132SA20J8?
For technical support, including 7132SA20J8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132SA20J8 requirements.
6.How does Aetrix verify that 7132SA20J8 is sourced from the original manufacturer or authorized distributors?
All 7132SA20J8 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 7132SA20J8 meets industry standards.
7.What is the process for return or replacement of 7132SA20J8?
All 7132SA20J8 units undergo pre-shipment inspection (PSI). If there is an issue with 7132SA20J8, 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 7132SA20J8 part is unused and in its original packaging.
Return procedure for 7132SA20J8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132SA20J8 Tags
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