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Renesas 7132LA35PDG
- Part No.:
- 7132LA35PDG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7132LA35PDG.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,237
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Product details
Overview
IDT7132LA35PDG 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 delivers 35ns max read cycle time for real-time inter-processor communication in embedded control systems.
For engineers reviewing the IDT7132LA35PDG datasheet, IDT7132LA35PDG pinout, IDT7132LA35PDG application, or IDT7132LA35PDG equivalent, key selection considerations include its 48-pin PDIP package, open-drain BUSY outputs requiring 270Ω pull-up, 1mW standby power, industrial temperature range (–40°C to +85°C), and master/slave expansion capability for 16-bit+ memory width.
Technical Context
The IDT7132LA35PDG implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs when simultaneous accesses to identical addresses occur. Its arbitration logic ignores R/W polarity and triggers BUSY before write pulse initiation, enforcing deterministic priority via tAPS (5ns setup).
This device features two fully independent TTL-compatible ports with separate CE/OE/R/W controls, address decoders, and I/O drivers - enabling full-speed concurrent access without external logic. The LA variant adds 2V data retention mode with ISB3 ≤ 0.2mA (typ.) and ICC = 80mA (typ.) at 35ns speed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8 bits (2048 words × 8-bit wide), dual-port architecture enabling true parallel access |
| Access Time (tRC) | 35ns max - defines minimum read cycle interval for sustained throughput in real-time systems |
| Supply Voltage | 5.0V ±10% - single-rail operation compatible with legacy 5V TTL logic families |
| Standby Current (ISB3) | 0.2mA typ. - enables ultra-low-power battery backup mode with 2V VCC retention |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications including motor control and instrumentation |
| Package | 48-pin Plastic DIP (PDG48) - through-hole mounting with 0.55″ × 2.43″ footprint and standard socket compatibility |
| BUSY Output Type | Open-drain (BUSYL/BUSYR) - requires external 270Ω pull-up for proper arbitration signaling in master configuration |
Pinout & Package
48-pin Plastic Dual In-line Package (PDG48) with 0.3″ row spacing and standard DIP mechanical dimensions (approx. 0.55 in × 2.43 in × 0.18 in). Pin 1 index corner marked; all VCC pins must be connected to 5V supply, all GND pins to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 48) | Ground reference | Three dedicated ground pins ensure low-impedance return paths for both ports and reduce switching noise coupling |
| VCC (Pins 23, 47) | Power supply | Dual VCC pins provide distributed power delivery to minimize IR drop across die during high-speed access |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables respective port; drives ISB1/ISB2 current states and initiates BUSY arbitration evaluation |
| OEL / OER | Output Enable (Left/Right) | Active-low controls I/O driver output state; allows high-impedance tri-state during port contention or idle cycles |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low determines data direction per port; combined with CE/OE to define functional mode per Truth Table I |
| BUSYL / BUSYR | Arbitration Status Flag (Master only) | Open-drain outputs asserted low during address match; require 270Ω pull-up to VCC for valid logic levels |
| A0L–A10L / A0R–A10R | Address Inputs (Left/Right) | 11-bit address buses (2048 locations) - independent addressing enables non-overlapping memory mapping per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left/Right) | Bidirectional 8-bit data buses - internally isolated to prevent cross-port signal corruption during concurrent access |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Hardware-enforced priority resolution for simultaneous same-address access, eliminating need for external glue logic |
| Battery backup data retention | Valid data hold at 2V VCC with ISB3 ≤ 0.2mA - enables non-volatile operation during main power loss |
| Master/Slave expandability | Single IDT7132LA35PDG master coordinates multiple IDT7142 slaves for seamless 16-bit+ word width without timing penalties |
| Ultra-low standby power | 1mW typical standby (ISB3) - reduces system-level power budget in always-on industrial controllers |
| TTL-compatible interface | Direct connection to 5V microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Applications
| Industrial PLC Communication Buffer | Real-Time Signal Processing Memory |
|---|---|
Use Scenario: Dual-CPU architecture where one processor handles I/O scanning and another executes control algorithms, sharing status and command data via shared memory. IC Role / Device Role / Timing Role: IDT7132LA35PDG acts as MASTER dual-port SRAM providing synchronized, contention-free data exchange between CPUs with deterministic BUSY arbitration. Use Value: Eliminates software semaphores and polling overhead; 35ns access ensures sub-microsecond inter-processor latency for closed-loop motion control. |
Use Scenario: High-speed ADC/DAC interface in test equipment requiring simultaneous capture of analog input and generation of waveform output. IC Role / Device Role / Timing Role: IDT7132LA35PDG serves as ping-pong buffer memory - one port receives digitized samples while the other streams reconstructed signals. Use Value: Full 2K × 8 depth supports 2048-sample buffers; independent port timing prevents FIFO overflow under 20MHz sampling rates. |
| Military Avionics Data Hub | Automotive Engine Control Unit |
Use Scenario: Fault-tolerant flight management system where redundant processors validate sensor fusion results before actuator commands are issued. IC Role / Device Role / Timing Role: IDT7132LA35PDG functions as certified shared memory with BUSY-driven write inhibition to prevent conflicting updates during failover transitions. Use Value: MIL-PRF-38535 QML-compliant construction ensures reliability; 2V data retention preserves critical state during brownout events. |
Use Scenario: Multi-core ECU architecture coordinating fuel injection, ignition timing, and emissions control across separate processing domains. IC Role / Device Role / Timing Role: IDT7132LA35PDG operates as MASTER SRAM enabling time-critical parameter exchange between safety-critical and non-safety partitions. Use Value: Industrial temperature rating (–40°C to +85°C) guarantees operation in under-hood environments; 1mW standby extends battery life during vehicle sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-35PC | 35ns access, 2K × 8, but no built-in BUSY arbitration logic; requires external priority encoder for contention resolution | Lacks master/slave expansion capability; suitable only for point-to-point dual-processor links without array scaling needs | Select when system design already includes discrete arbitration logic or when cost sensitivity outweighs integration benefit |
| IDT7142LA35PDG | Same speed/package/power, but SLAVE-only configuration with BUSY inputs instead of outputs; no on-chip arbitration logic | Designed exclusively for width expansion with IDT7132 master; cannot operate standalone as memory controller | Choose only as companion part in multi-chip 16-bit+ memory systems; not a functional substitute for IDT7132LA35PDG |
Compared with CY7C133-35PC and IDT7142LA35PDG, the IDT7132LA35PDG uniquely integrates arbitration logic and BUSY signaling in a master configuration - reducing BOM count and PCB area in scalable memory architectures while maintaining deterministic timing behavior under contention.
Availability
IDT7132LA35PDG is available at Aetrix Electronics and suitable for industrial PLC communication buffers, real-time signal processing memory, and military avionics data hubs requiring stable component supply across extended product lifecycles.
Supply support for IDT7132LA35PDG 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, and RF solutions for communications, computing, and industrial markets.
IDT7132LA35PDG belongs to the IDT7132/7142 dual-port SRAM family designed specifically for deterministic, low-latency inter-processor communication in mission-critical embedded systems requiring hardware-enforced memory coherency.
FAQ
What is the operating temperature range for IDT7132LA35PDG?
IDT7132LA35PDG is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Recommended Operating Temperature and Supply Voltage" table, where the LA suffix explicitly denotes industrial-grade qualification. The device maintains full functionality and timing compliance across this range without derating.
Does IDT7132LA35PDG support battery backup operation?
Yes, IDT7132LA35PDG supports battery backup operation with guaranteed data retention at VCC = 2.0V. As stated in the "Data Retention Characteristics (LA Version Only)" section, it draws ≤ 4000µA (max) during retention mode and holds valid data indefinitely at 2V, making it suitable for systems requiring non-volatile state preservation during main power loss.
How does the BUSY arbitration work on IDT7132LA35PDG?
IDT7132LA35PDG implements hardware arbitration by monitoring address and chip-enable inputs on both ports. When matching addresses are detected, BUSYL or BUSYR is asserted low within 20ns (tBAA max) to inhibit writes on the contending port. The arbitration priority is determined by which port's enable/address signals stabilize first, with tAPS = 5ns ensuring deterministic resolution.
What package type is used for IDT7132LA35PDG?
IDT7132LA35PDG uses a 48-pin Plastic Dual In-line Package (PDG48), as confirmed in the "Pin Configurations" section and "Ordering Information" tables. The PDG48 variant has mechanical dimensions of approximately 0.55 in × 2.43 in × 0.18 in and is distinct from SB48 (side-braze) and PLCC variants.
Can IDT7132LA35PDG be used without external pull-up resistors on BUSY pins?
No, IDT7132LA35PDG cannot operate correctly without external 270Ω pull-up resistors on BUSYL and BUSYR pins. The datasheet explicitly states these are open-drain outputs requiring pull-up to VCC for valid logic-high levels during arbitration. Omitting them will prevent BUSY signals from reaching VIH thresholds, causing uncontrolled write contention.
7132LA35PDG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-DIP (0.600", 15.24mm)
- 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:
- Through Hole
- Supplier Device Package:
- 48-PDIP
7132LA35PDG FAQ
1.How can I place an order for 7132LA35PDG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA35PDG 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 7132LA35PDG reliable?
The price and inventory of 7132LA35PDG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA35PDG is usually 5 days.
3.What payment methods are accepted for 7132LA35PDG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA35PDG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA35PDG?
7132LA35PDG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA35PDG 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 7132LA35PDG?
For technical support, including 7132LA35PDG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA35PDG requirements.
6.How does Aetrix verify that 7132LA35PDG is sourced from the original manufacturer or authorized distributors?
All 7132LA35PDG 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 7132LA35PDG meets industry standards.
7.What is the process for return or replacement of 7132LA35PDG?
All 7132LA35PDG units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA35PDG, 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 7132LA35PDG part is unused and in its original packaging.
Return procedure for 7132LA35PDG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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