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Renesas 7132LA25L48B
- Part No.:
- 7132LA25L48B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-LCC
- Datasheet:
-
7132LA25L48B.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48LCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,708
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Product details
Overview
IDT7132LA25L48B 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 IDT7132LA25L48B datasheet, IDT7132LA25L48B pinout, IDT7132LA25L48B application, or IDT7132LA25L48B equivalent, key selection criteria include its 25ns max access time, 1mW standby power, 48-pin flatpack package, and MASTER-specific BUSY arbitration timing - critical for deterministic contention resolution in dual-CPU architectures.
Technical Context
The IDT7132LA25L48B implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs within 20ns (tBAA/tBAC), enabling deterministic resolution of simultaneous accesses to identical memory locations. Its open-drain BUSY outputs require 270Ω pull-up resistors and drive write-inhibit logic on slave devices like IDT7142.
It features separate CE/OE/R/W controls per port, TTL-compatible I/O, and automatic power-down when CE = VIH. The LA variant delivers 1mW typical standby current and retains data down to 2V, supporting battery backup operation without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit wide), sufficient for small real-time buffers or register-mapped shared memory |
| Access Time | 25ns maximum (industrial temp range), enabling synchronization with 40MHz bus clocks |
| Supply Voltage | 5.0V ±10%, compatible with legacy TTL/CMOS logic families without level-shifting |
| Standby Current | 1mW typical (ISB3), reducing system power during idle cycles in battery-critical applications |
| Data Retention | 2V minimum VCC, allowing direct connection to backup lithium coin cell without regulator |
| Operating Temp | –40°C to +85°C, qualified for industrial environments including factory automation and motor drives |
| Package | 48-lead flatpack (FP48), hermetically sealed for high-reliability aerospace and defense use |
Pinout & Package
48-pin flatpack (FP48) package with 0.75″ × 0.75″ footprint and 0.11″ height; body material is ceramic-metal hermetic seal compliant with MIL-PRF-38535 QML.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Two dedicated ground pins minimize ground bounce during simultaneous port switching |
| VCC (Pin 25) | Power supply | Single 5V supply powers both ports; all VCC pins must be decoupled locally |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; unselected port enters low-power ISB1/ISB2 mode |
| OEL / OER | Output enable (left/right) | Controls tri-state of I/O pins independently per port, enabling bus sharing |
| R/WL / R/WR | Read/write control (left/right) | Determines direction of data transfer; write requires concurrent CE and R/W assertion |
| BUSYL / BUSYR | Busy flag (output only) | Open-drain outputs requiring 270Ω pull-up; signal contention on corresponding port |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit addressing for full 2K space; matched routing required to meet tAPS setup time |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit buses; high-impedance when OE = VIH or CE = VIH |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves port contention without external logic by asserting BUSY within 20ns of address/CE match |
| Master-only BUSY output | Enables plug-and-play expansion with IDT7142 slaves; eliminates need for external AND gates in width-expansion arrays |
| Battery backup support | Maintains data integrity at 2V VCC, allowing seamless switchover to backup power during main supply failure |
| TTL-compatible I/O | Direct interface with 5V microcontrollers, FPGAs, and ASICs without level translation circuitry |
| MIL-PRF-38535 QML compliance | Qualified for high-reliability military/aerospace applications with full traceability and screening |
Applications
| Industrial PLC Communication Buffer | Avionics Dual-Processor Shared Memory |
|---|---|
Use Scenario: Two independent PLC CPUs share status registers and I/O mapping tables via common memory. IC Role / Device Role / Timing Role: MASTER IDT7132LA25L48B arbitrates simultaneous access attempts and asserts BUSY to stall conflicting writes. Use Value: Prevents data corruption during real-time task switching without software overhead or polling delays. |
Use Scenario: Flight control computer and monitoring processor exchange sensor fusion results and actuator commands. IC Role / Device Role / Timing Role: Provides deterministic 25ns-latency memory access with hardware-enforced write serialization. Use Value: Meets DO-254 timing constraints for safety-critical avionics data exchange. |
| Medical Imaging Data Pipeline | Test Equipment Pattern Generator |
Use Scenario: High-speed ADC front-end streams raw image frames into memory while DSP backend reads and processes them. IC Role / Device Role / Timing Role: Dual-port architecture enables continuous streaming (write port) and burst processing (read port) without FIFO bottlenecks. Use Value: Eliminates pipeline stalls during CT/MRI frame capture, sustaining >40MB/s throughput. |
Use Scenario: Automated test system stores stimulus patterns in memory and outputs them synchronously to DUT via high-speed parallel bus. IC Role / Device Role / Timing Role: MASTER configuration ensures glitch-free pattern updates during test execution using BUSY-controlled write gating. Use Value: Guarantees atomic pattern changes without partial writes corrupting test vectors. |
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 CY7C024AV-25AXC | 25ns access, 2K × 16 organization, 52-pin TQFP; no built-in BUSY arbitration | Requires external logic for contention management; better suited for fixed-width 16-bit systems | Select when wider data bus is needed and arbitration can be handled externally |
| ISSI IS61LV25616AL-10TLI | 10ns access, 256K × 16, 3.3V core; no dual-port arbitration or BUSY signaling | Higher density but lacks hardware contention resolution; incompatible voltage and pinout | Choose for cost-sensitive, non-contention applications requiring higher capacity and lower voltage |
Compared with IDT7132LA25L48B, CY7C024AV-25AXC offers double data width but adds design complexity for arbitration, while IS61LV25616AL-10TLI provides faster speed and larger memory but removes the deterministic BUSY mechanism essential for real-time dual-CPU coordination.
Availability
IDT7132LA25L48B is available at Aetrix Electronics and suitable for industrial PLC communication buffers, avionics dual-processor shared memory, and medical imaging data pipelines requiring stable component supply across extended product lifecycles.
Supply support for IDT7132LA25L48B 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 inter-processor communication in real-time embedded systems, emphasizing hardware arbitration, low-latency access, and robustness under temperature and voltage stress.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132LA25L48B?
BUSYL and BUSYR are open-drain output signals indicating port contention on the left and right ports respectively. When asserted low, they inhibit writes to the corresponding port. The IDT7132LA25L48B uses these signals to resolve simultaneous accesses to identical addresses, ensuring deterministic arbitration without external logic. Each requires a 270Ω pull-up resistor to operate correctly.
Does the IDT7132LA25L48B support battery backup operation?
Yes, the IDT7132LA25L48B (LA version) supports data retention at 2V VCC, enabling direct connection to a backup lithium coin cell. This feature maintains memory contents during main power loss without external regulators or switching circuitry. Data retention current is specified at ≤4000µA (military/industrial) and ≤1500µA (commercial) under VCC = 2.0V conditions.
Can the IDT7132LA25L48B be used as a standalone dual-port RAM without a slave device?
Yes, the IDT7132LA25L48B functions fully as a standalone 2K × 8 dual-port SRAM with independent left and right port access. Its on-chip arbitration logic and BUSY outputs operate internally even without an IDT7142 slave. The MASTER designation reflects capability-not requirement-for width expansion; standalone use is explicitly supported in the datasheet and functional description.
What is the significance of the '25' in IDT7132LA25L48B?
The '25' in IDT7132LA25L48B denotes the maximum access time rating: 25ns for both address access (tAA) and chip-enable access (tACE) under industrial temperature conditions (–40°C to +85°C). This speed grade ensures compatibility with 40MHz synchronous buses and meets timing requirements for real-time control loops in industrial automation equipment.
How does the IDT7132LA25L48B differ from the IDT7142LA25L48B?
The IDT7132LA25L48B is the MASTER device with on-chip arbitration logic and BUSY outputs, while the IDT7142LA25L48B is the SLAVE device with BUSY inputs and no arbitration circuitry. The IDT7132LA25L48B can operate standalone or coordinate multiple IDT7142 slaves in width-expanded configurations; the IDT7142LA25L48B requires a master to manage contention and cannot arbitrate independently.
7132LA25L48B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-LCC
- 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:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LCC (14.22x14.22)
7132LA25L48B FAQ
1.How can I place an order for 7132LA25L48B through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA25L48B 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 7132LA25L48B reliable?
The price and inventory of 7132LA25L48B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA25L48B is usually 5 days.
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7132LA25L48B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA25L48B 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 7132LA25L48B?
For technical support, including 7132LA25L48B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA25L48B requirements.
6.How does Aetrix verify that 7132LA25L48B is sourced from the original manufacturer or authorized distributors?
All 7132LA25L48B 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 7132LA25L48B meets industry standards.
7.What is the process for return or replacement of 7132LA25L48B?
All 7132LA25L48B units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA25L48B, 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 7132LA25L48B part is unused and in its original packaging.
Return procedure for 7132LA25L48B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA25L48B Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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AT24C04C-SSHM-T
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AT24C08C-STUM-T
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