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Renesas 7132LA100P
- Part No.:
- 7132LA100P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7132LA100P.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,615
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Product details
Overview
IDT7132LA100P 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/right ports, operates on single 5V ±10% supply, and delivers 100ns max read cycle time for real-time inter-processor communication in embedded control systems.
For engineers reviewing the IDT7132LA100P datasheet, IDT7132LA100P pinout, IDT7132LA100P application, or IDT7132LA100P equivalent, key selection criteria include its 2V data retention capability, open-drain BUSY outputs requiring 270Ω pull-up, master/slave expandability to 16-bit+ word width, and industrial temperature range (–40°C to +85°C) compliance.
Technical Context
The IDT7132LA100P implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs-open-drain signals that indicate contention when both ports access the same memory location simultaneously. Its arbitration logic ignores read/write direction and triggers BUSY based solely on timing alignment of address/enable transitions.
This device integrates two fully independent memory ports with separate A0–A10, I/O0–I/O7, CE/OE/R/W, and BUSY terminals per side. The LA variant enables ultra-low-power standby (1mW typ.) and 2V battery backup retention, distinguishing it from SA versions. All VCC and GND pins must be externally connected per package requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit data width), enabling compact buffer storage for dual-CPU or FPGA-ASIC co-processing. |
| Access Time | 100ns maximum read cycle time (tRC), defining worst-case latency for deterministic real-time data exchange between ports. |
| Supply Voltage | 5.0V ±10% (4.5–5.5V), compatible with standard TTL-level logic families without level-shifting circuitry. |
| Data Retention | 2.0V minimum VCC for data retention (LA-only), supporting battery backup during main power loss without volatile data corruption. |
| Standby Power | 1mW typical (ISB3), achieved via CMOS full-standby mode when both CE inputs are high and all inputs are CMOS-leveled. |
| Operating Temp | –40°C to +85°C industrial range, validated for deployment in automotive engine control units and industrial PLCs. |
| BUSY Output Type | Open-drain BUSYL/BUSYR (requires external 270Ω pull-up), enabling wired-OR expansion across multiple MASTER devices in wide-memory arrays. |
Pinout & Package
Package: 48-pin Flatpack (FP48), dimensions ≈ 0.75 in × 0.75 in × 0.11 in; also available in 48-pin LCC, 48-pin DIP (PDG/SB48), and 52-pin PLCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Active-low enable controlling port power-down; drives ISB1/ISB2/ISB3/ISB4 current states depending on input voltage level and port activity. |
| OEL / OER | Output Enable (Left/Right) | Active-low control for I/O bus drivers; sets I/O0–I/O7 to high-impedance when deasserted, enabling shared bus architectures. |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low signal determining data flow direction: low = write, high = read; used with CE/OE to decode internal memory operation. |
| BUSYL / BUSYR | BUSY Flag (Left/Right) | Open-drain output (MASTER only) indicating port contention; requires 270Ω pull-up to VCC and asserts low when opposite port accesses same address. |
| A0L–A10L / A0R–A10R | Address Inputs (Left/Right) | 11-bit address bus selecting one of 2048 memory locations per port; timing-critical for tAA, tACE, tBAA, and tAPS setup. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O Bus (Left/Right) | Bidirectional 8-bit data path; transitions between input (write) and output (read) states controlled by R/W and OE; capacitance ≤11pF. |
| VCC / GND | Power Supply | Single 5V supply; all VCC pins must be connected to decoupled 5V rail, all GND pins to common ground plane per package layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Hardware-based contention resolution using address/CE timing alignment (tAPS = 5ns min.), eliminating need for external glue logic in multi-processor systems. |
| Master/slave expandability | Enables seamless 16-bit or wider memory word construction using IDT7132 (MASTER) + IDT7142 (SLAVE), with automatic BUSY propagation across slave devices. |
| 2V battery backup retention | Preserves stored data during main power failure using external 2V battery source, critical for nonvolatile configuration storage in telecom line cards. |
| Ultra-low standby power | 1mW typical ISB3 current at 5V enables energy-efficient operation in always-on industrial gateways and edge sensor nodes. |
| Open-drain BUSY outputs | Supports wired-OR connection of multiple MASTER devices in depth-expanded arrays without external AND gates, simplifying board-level arbitration routing. |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion data via shared memory without software handshaking. IC Role / Device Role / Timing Role: MASTER dual-port RAM providing synchronized, contention-managed access to 2K×8 shared buffer space with 100ns deterministic latency. Use Value: Eliminates CPU polling overhead and race conditions through hardware BUSY arbitration, ensuring data integrity during concurrent read/write operations. |
Use Scenario: An FPGA processes streaming audio frames while a DSP core performs real-time filtering on the same dataset. IC Role / Device Role / Timing Role: Dual-port SRAM acting as zero-wait-state ping-pong buffer between FPGA and DSP, with independent clock domains. Use Value: Enables simultaneous frame capture and processing without pipeline stalls, leveraging 100ns access time and separate I/O buses per port. |
| Industrial PLC Data Exchange | Telecom Line Card Configuration Storage |
Use Scenario: PLC main CPU and safety-monitoring co-processor share I/O status and diagnostic logs in real time. IC Role / Device Role / Timing Role: Industrial-grade (–40°C to +85°C) MASTER SRAM with battery-backed retention preserving critical state during brownouts. Use Value: Guarantees fail-safe operation by retaining last-known safe state in nonvolatile 2V backup mode, meeting IEC 61508 functional safety requirements. |
Use Scenario: Storing firmware configuration parameters and calibration tables in carrier-grade optical line cards. IC Role / Device Role / Timing Role: Low-power LA variant serving as persistent configuration store with 1mW standby current and 2V data retention. Use Value: Reduces system power budget while maintaining parameter integrity during hot-swap maintenance cycles and power cycling. |
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 | 3.3V supply, 10ns faster access (90ns), no 2V retention; uses push-pull BUSY, not open-drain. | Requires level-shifting for 5V systems; lacks battery backup capability but offers lower latency in high-speed digital signal processors. | Select when migrating to 3.3V infrastructure and prioritizing speed over power-off data persistence. |
| ISSI IS61LV25616AL | Single-port, 256K × 16 organization, 3.3V only, no BUSY arbitration logic or master/slave expansion support. | Suitable for simpler buffering where port independence isn't required; cannot replace IDT7132LA100P in contention-prone dual-CPU designs. | Choose only for cost-sensitive, non-contention applications needing larger memory density without arbitration complexity. |
Compared with CY7C1371DV33 and IS61LV25616AL, the IDT7132LA100P uniquely combines 5V compatibility, hardware arbitration, 2V battery retention, and open-drain BUSY expandability-making it irreplaceable in legacy industrial and military dual-processor systems requiring deterministic, fault-tolerant shared memory.
Availability
IDT7132LA100P is available at Aetrix Electronics and suitable for real-time inter-processor communication, industrial PLC data exchange, and telecom line card configuration storage requiring stable component supply across extended product lifecycles.
Supply support for IDT7132LA100P 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 pioneered high-performance dual-port SRAM architectures for mission-critical embedded systems.
The IDT7132/7142 product line was designed specifically for deterministic, contention-free memory sharing between heterogeneous processors in aerospace, industrial automation, and telecommunications infrastructure-emphasizing hardware arbitration, low-power retention, and ruggedized packaging.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132LA100P?
BUSYL and BUSYR are open-drain outputs on the IDT7132LA100P that signal port contention when both left and right ports attempt to access the same memory address simultaneously. They require external 270Ω pull-up resistors to VCC and drive low to stall the contending port's write operation, ensuring data integrity in dual-processor systems.
Does the IDT7132LA100P support battery backup operation?
Yes, the IDT7132LA100P supports battery backup operation with guaranteed data retention at VCC = 2.0V, a feature exclusive to LA variants. This allows the device to maintain stored memory contents during main power loss, making it suitable for configuration storage in telecom and industrial control applications.
Can the IDT7132LA100P be used as a standalone 8-bit dual-port RAM?
Yes, the IDT7132LA100P functions as a complete standalone 8-bit dual-port SRAM with independent left/right address, control, and I/O buses. Its on-chip arbitration logic and BUSY outputs operate without external components, enabling immediate deployment in systems requiring two asynchronous memory interfaces.
What package options are available for the IDT7132LA100P?
The IDT7132LA100P is offered in 48-pin Flatpack (FP48), 48-pin LCC (LC48), 48-pin DIP (PDG48/SB48), and 52-pin PLCC (PLG52) packages. Each variant maintains identical electrical specifications and pinout mapping, allowing direct substitution based on mechanical or thermal design constraints.
How does the IDT7132LA100P differ from the IDT7142LA100P?
The IDT7132LA100P is the MASTER device with on-chip arbitration logic and BUSY outputs, while the IDT7142LA100P is the SLAVE device with BUSY inputs only. The IDT7132LA100P enables width expansion to 16-bit+ word widths when paired with IDT7142LA100P, whereas the SLAVE cannot operate independently in MASTER mode.
7132LA100P 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:
- 100ns
- Access Time:
- 100 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
7132LA100P FAQ
1.How can I place an order for 7132LA100P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA100P 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 7132LA100P reliable?
The price and inventory of 7132LA100P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA100P is usually 5 days.
3.What payment methods are accepted for 7132LA100P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA100P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA100P?
7132LA100P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA100P 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 7132LA100P?
For technical support, including 7132LA100P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA100P requirements.
6.How does Aetrix verify that 7132LA100P is sourced from the original manufacturer or authorized distributors?
All 7132LA100P 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 7132LA100P meets industry standards.
7.What is the process for return or replacement of 7132LA100P?
All 7132LA100P units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA100P, 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 7132LA100P part is unused and in its original packaging.
Return procedure for 7132LA100P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA100P Tags
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