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Renesas 7132LA35J
- Part No.:
- 7132LA35J
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132LA35J.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,230
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Product details
Overview
IDT7132LA35J 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, 35 ns maximum read cycle time, 1 mW typical standby power, and battery-backed data retention at 2 V. It enables full-speed, error-free 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.
For engineers reviewing the IDT7132LA35J datasheet, IDT7132LA35J pinout, IDT7132LA35J application, or IDT7132LA35J equivalent, key selection considerations include BUSY arbitration timing (tBAA ≤ 35 ns), dual independent port access with TTL-compatible 5 V ±10% supply, industrial temperature range (–40°C to +85°C), and 48-pin flatpack (FP48) package compatibility.
Technical Context
The IDT7132LA35J implements asynchronous dual-port architecture with separate address, control, and I/O buses for left (L) and right (R) ports, enabling concurrent read/write operations without external logic. Its on-chip arbitration logic resolves contention via BUSYL/BUSYR open-drain outputs that assert when both ports access the same address-requiring 270 Ω pull-up resistors per BUSY line.
As a MASTER-only device, it supports width expansion by driving BUSY signals to IDT7142 SLAVE devices, which use BUSY as write-inhibit inputs. The LA variant provides 2 V data retention during battery backup mode, with full standby current ISB3 ≤ 0.2 mA (typ.) under CMOS-level inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8 (2048 words × 8 bits), dual independent ports |
| Access Time (tRC) | 35 ns max - defines minimum read cycle interval for sustained throughput |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no dual-supply sequencing required |
| Standby Current (ISB3) | 0.2 mA typ. - ultra-low power in full CMOS standby, enabling battery backup |
| Data Retention Voltage | 2.0 V min - retains valid data during main power loss; LA-specific feature |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Arbitration Logic | On-chip BUSY generation - resolves port contention without external gates |
Pinout & Package
Package: 48-pin Flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in; leadless ceramic construction with side-braze or solder-seal hermetic sealing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Must be connected to system ground plane; two dedicated pins reduce ground bounce |
| VCC (Pin 25) | Power supply | 5 V ±10% input; decoupling capacitor required within 0.5 inch of pin |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls automatic power-down into ISB1/ISB3 modes |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z state prevents bus contention during disable |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of data flow on I/O lines |
| BUSYL / BUSYR | BUSY flag (open-drain output) | Asserted low during address contention; requires 270 Ω pull-up to VCC per pin |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address bus per port; supports full 2K address space independently |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data bus per port; high-impedance when CE or OE inactive |
Key Features
| Feature | Design Value |
|---|---|
| MASTER arbitration logic | Resolves simultaneous same-address access without external logic; guarantees one port wins |
| Open-drain BUSY outputs | Enables wired-OR expansion across multiple MASTER/SLAVE arrays without gate logic |
| 2 V data retention (LA only) | Maintains stored data during main power failure using backup battery; no refresh needed |
| TTL-compatible interface | Direct connection to 5 V microcontrollers/FPGAs without level-shifting circuitry |
| Industrial temperature operation | Validated performance from –40°C to +85°C; no thermal derating required for tRC = 35 ns |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
|
Use Scenario: Concurrent FFT computation and coefficient update in motor drive firmware. IC Role / Device Role / Timing Role: MASTER IDT7132LA35J buffers incoming sensor samples on one port while feeding updated filter coefficients to DSP core on the other port. Use Value: 35 ns tRC enables sub-microsecond memory access, eliminating pipeline stalls during high-frequency PWM updates. |
Use Scenario: Synchronized multi-axis position tracking with shared trajectory buffer. IC Role / Device Role / Timing Role: Dual-port RAM serves as shared memory between motion controller CPU (left port) and FPGA-based servo loop engine (right port). Use Value: On-chip BUSY arbitration prevents write collisions when both CPU and FPGA access same trajectory point, ensuring deterministic motion execution. |
| Avionics Data Acquisition | Medical Imaging Buffering |
|
Use Scenario: Redundant flight sensor data capture with fail-safe logging. IC Role / Device Role / Timing Role: IDT7132LA35J stores raw ADC streams from dual independent sensor channels; BUSY flags coordinate timestamp alignment. Use Value: 2 V data retention preserves last valid sensor snapshot during brown-out events, meeting DO-254 safety requirements. |
Use Scenario: Real-time ultrasound frame buffering with simultaneous acquisition and display rendering. IC Role / Device Role / Timing Role: Left port accepts digitized RF echo data from ADC; right port feeds processed B-mode frames to display controller. Use Value: Independent port timing eliminates FIFO bottlenecks, sustaining 30 fps imaging at full resolution without dropped frames. |
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 CY7C136-35JC | 35 ns access, 2K × 8, but no on-chip arbitration logic; BUSY must be implemented externally | Requires additional logic for width expansion; not drop-in for MASTER/SLAVE topologies | Select when external arbitration control is preferred or legacy board reuse mandates identical pinout |
| ISSI IS61LV25616AL-10TLI | 10 ns access, 256K × 16 organization, 3.3 V supply; no BUSY or MASTER/SLAVE capability | Higher density and speed but incompatible voltage and arbitration architecture | Select for new designs needing higher bandwidth and lower voltage, accepting redesign of arbitration layer |
Compared with CY7C136-35JC and IS61LV25616AL-10TLI, the IDT7132LA35J uniquely integrates arbitration logic and 2 V data retention in a 5 V industrial-grade dual-port SRAM-enabling simpler, more reliable width-expansion systems without external glue logic or voltage translation.
Availability
IDT7132LA35J is available at Aetrix Electronics and suitable for real-time digital signal processing, industrial motion control, and avionics data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for IDT7132LA35J 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) was a fabless semiconductor company specializing in timing, memory interface, and RF solutions before its acquisition by Renesas Electronics in 2019. IDT products remain widely deployed in industrial and aerospace systems.
The IDT7132/7142 family was designed specifically for deterministic, contention-free memory expansion in real-time embedded systems-emphasizing hardware arbitration, low-power standby, and robust industrial temperature operation.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132LA35J?
BUSYL and BUSYR are open-drain outputs on the IDT7132LA35J that assert low when the corresponding port contends for the same memory address as the opposite port. They require 270 Ω pull-up resistors to VCC and serve as write-inhibit signals when cascading with IDT7142 SLAVE devices. This hardware arbitration eliminates race conditions without external logic.
Does the IDT7132LA35J support battery backup operation?
Yes, the IDT7132LA35J supports battery backup operation with guaranteed data retention at VCC = 2.0 V, a feature exclusive to the LA suffix variant. In this mode, ISB3 current is ≤ 0.2 mA (typ.), allowing extended retention from a small backup cell. The SA variant does not support this capability.
Can the IDT7132LA35J be used as a standalone 8-bit dual-port RAM?
Yes, the IDT7132LA35J functions as a complete standalone 8-bit dual-port SRAM with independent left and right ports. Its on-chip arbitration logic remains active even without SLAVE devices, providing BUSY signaling for internal contention detection-making it suitable for any application requiring concurrent access to shared memory.
What package type is used for the IDT7132LA35J?
The IDT7132LA35J is packaged in a 48-pin Flatpack (FP48) with dimensions approximately 0.75 in × 0.75 in × 0.11 in. This hermetically sealed ceramic package meets MIL-PRF-38535 QML requirements and is rated for industrial temperature operation (–40°C to +85°C).
How does the IDT7132LA35J differ from the IDT7142LA35J?
The IDT7132LA35J is the MASTER device with on-chip arbitration logic and BUSY outputs, while the IDT7142LA35J is the SLAVE device with BUSY inputs and no arbitration circuitry. They share identical memory size, speed (35 ns), and power specs, but only the IDT7132LA35J can initiate width expansion and generate BUSY flags for system-level contention management.
7132LA35J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tube
- 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:
- 35ns
- Access Time:
- 35 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)
7132LA35J FAQ
1.How can I place an order for 7132LA35J through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA35J 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 7132LA35J reliable?
The price and inventory of 7132LA35J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA35J is usually 5 days.
3.What payment methods are accepted for 7132LA35J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA35J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA35J?
7132LA35J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA35J 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 7132LA35J?
For technical support, including 7132LA35J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA35J requirements.
6.How does Aetrix verify that 7132LA35J is sourced from the original manufacturer or authorized distributors?
All 7132LA35J 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 7132LA35J meets industry standards.
7.What is the process for return or replacement of 7132LA35J?
All 7132LA35J units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA35J, 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 7132LA35J part is unused and in its original packaging.
Return procedure for 7132LA35J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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