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Renesas 7132LA25JI8
- Part No.:
- 7132LA25JI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132LA25JI8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,212
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Product details
Overview
IDT7132LA25JI8 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 operates at 25ns max access time, supports independent asynchronous read/write on left/right ports, and targets real-time inter-processor communication in industrial control systems.
For engineers reviewing the IDT7132LA25JI8 datasheet, IDT7132LA25JI8 pinout, IDT7132LA25JI8 application, or IDT7132LA25JI8 equivalent, key selection criteria include its 25ns read cycle time, 1μA full-standby current (ISB3), 2V data retention capability, open-drain BUSY outputs requiring 270Ω pull-up, and compatibility with TTL-level 5V ±10% supply.
Technical Context
The IDT7132LA25JI8 implements hardware-based port arbitration using address and chip-enable inputs to assert BUSYL/BUSYR outputs-open-drain signals that inhibit writes during contention. Its dual-port architecture enables simultaneous access without external logic, with tAPS = 5ns arbitration priority setup ensuring deterministic resolution when both ports target the same address.
It features two independent control domains: left port (A0L–A10L, CEL, OEL, R/WL, I/O0L–I/O7L, BUSYL) and right port (A0R–A10R, CER, OER, R/WR, I/O0R–I/O7R, BUSYR), each supporting TTL-compatible signaling and automatic power-down via CE-driven ISB3 = 0.2mA (typ) standby mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit wide), enabling compact buffer storage for dual-CPU or DSP+host interfaces |
| Access Time (tAA) | 25ns max - guarantees deterministic latency for real-time interrupt response in industrial PLCs |
| Data Retention Voltage | 2.0V min - supports battery backup operation without external voltage regulators |
| Full Standby Current (ISB3) | 0.2mA typ at VCC = 5V - enables ultra-low-power hold mode during system sleep states |
| BUSY Output Type | Open-drain (BUSYL/BUSYR) - requires external 270Ω pull-up for proper arbitration signaling |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and motor drives |
| Supply Voltage | 5.0V ±10% - compatible with standard TTL logic rails without level-shifting circuitry |
Pinout & Package
Package: 48-pin Flatpack (FP48), hermetically sealed, 0.75″ × 0.75″ × 0.11″ body size, suitable for high-reliability industrial and military applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Must be connected to system ground plane; dual GND pins reduce ground bounce in high-speed dual-port operation |
| VCC (Pin 25) | Power supply | 5V ±10% supply input; all VCC pins must be decoupled locally with 0.1μF ceramic capacitor |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls ISB1/ISB3 standby modes and arbitration activation |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z state prevents bus contention during multi-port sharing |
| R/WL / R/WR | Read/write control (left/right) | Active-low write; determines direction of data flow on I/O lines during enabled cycles |
| BUSYL / BUSYR | Arbitration status (open-drain) | Outputs LOW when local port loses arbitration; requires 270Ω pull-up to VCC per datasheet note |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses selecting one of 2048 memory locations independently per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data paths; high-impedance when OE or CE inactive to avoid signal conflicts |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves port contention deterministically using tAPS = 5ns setup time-eliminates need for external priority encoders |
| Battery backup data retention | Maintains stored data at 2V supply-enables seamless operation during main power loss in safety-critical controllers |
| Ultra-low full-standby current | 0.2mA typical (ISB3) with CMOS-level inputs-reduces system power budget in always-on embedded nodes |
| Dual independent port control | Separate CE/OE/RW per port allows asymmetric access patterns-e.g., CPU reads while DSP writes concurrently |
| TTL-compatible 5V interface | Direct connection to legacy microcontrollers and FPGAs without level translation-simplifies board design |
Applications
| Industrial PLC Memory Buffer | Real-Time Inter-Processor Communication |
|---|---|
Use Scenario: Dual-CPU architecture where one processor handles motion control and another manages HMI updates, sharing sensor data and command queues. IC Role / Device Role / Timing Role: MASTER IDT7132LA25JI8 acts as shared memory hub with hardware arbitration preventing race conditions during concurrent access. Use Value: Eliminates software semaphore overhead and guarantees sub-25ns memory coherency between processors. |
Use Scenario: FPGA-based video processing pipeline where frame buffers are accessed simultaneously by image capture and display engines. IC Role / Device Role / Timing Role: Dual-port SRAM provides zero-wait-state buffering with independent read/write timing on each port. Use Value: Enables continuous 60fps video streaming without frame drops or pipeline stalls. |
| Motor Drive Control Co-Processor Interface | Redundant Safety Controller Data Exchange |
Use Scenario: High-precision servo drive with separate position-loop and current-loop controllers exchanging torque commands and feedback values. IC Role / Device Role / Timing Role: IDT7132LA25JI8 serves as deterministic, low-latency data conduit with BUSY signaling to prevent write collisions. Use Value: Ensures <1μs worst-case synchronization delay between control loops-critical for field-oriented control stability. |
Use Scenario: SIL3-certified safety PLC where primary and secondary controllers validate each other's state via shared memory. IC Role / Device Role / Timing Role: MASTER device with 2V data retention preserves critical fault logs during brownout events. Use Value: Maintains forensic data integrity across power interruptions-required for IEC 61508 compliance. |
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, 3.3V core with 5V-tolerant I/O; no built-in BUSY arbitration | Requires external logic for port contention management; better suited for 3.3V systems with wider data paths | Select when migrating to lower-voltage designs and external arbitration is acceptable |
| ISSI IS61LV25616AL-25TQLI | 25ns, 256K × 16, 3.3V only, no dual-port arbitration; asynchronous single-port with depth expansion support | Lacks hardware BUSY logic and true dual-port concurrency-requires software coordination | Choose for cost-sensitive applications where deterministic arbitration is not required |
Compared with CY7C024AV-25AXC and IS61LV25616AL-25TQLI, the IDT7132LA25JI8 uniquely delivers integrated arbitration, 2V data retention, and 5V TTL compatibility-making it irreplaceable in legacy industrial systems demanding hardware-enforced memory coherency.
Availability
IDT7132LA25JI8 is available at Aetrix Electronics and suitable for industrial PLCs, real-time inter-processor communication links, and motor drive control co-processor interfaces requiring stable component supply across extended product lifecycles.
Supply support for IDT7132LA25JI8 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 in 2019. Known for high-reliability industrial and military-grade memory products.
The IDT7132/7142 family was designed specifically for deterministic dual-processor memory sharing in harsh environments-emphasizing hardware arbitration, low-power standby, and extended temperature operation.
FAQ
What is the maximum operating temperature range for IDT7132LA25JI8?
IDT7132LA25JI8 is rated for industrial temperature operation from –40°C to +85°C, verified per manufacturer specifications and qualified for use in factory automation, motor drives, and outdoor control cabinets where ambient thermal stress is present. This range is explicitly confirmed in the "Recommended Operating Temperature" table of the official datasheet.
Does IDT7132LA25JI8 support battery backup, and what voltage is required?
Yes, IDT7132LA25JI8 supports battery backup data retention at 2.0V minimum supply voltage, as specified in the "Data Retention Characteristics" section. This LA-series feature enables nonvolatile hold mode during main power loss, with ICCDR ≤ 4000µA (military/industrial) and tCDR = 0ns-ensuring immediate resumption of operation upon VCC restoration.
How is BUSY signaling implemented on IDT7132LA25JI8, and what external components are needed?
IDT7132LA25JI8 provides open-drain BUSYL and BUSYR outputs requiring 270Ω pull-up resistors to VCC, as stated in Note 1 and Figure 3 of the datasheet. These signals go LOW during port contention to inhibit writes, and their open-drain nature allows wired-OR expansion in multi-SRAM arrays without additional logic gates.
What is the full standby current (ISB3) specification for IDT7132LA25JI8?
IDT7132LA25JI8 delivers 0.2mA typical full standby current (ISB3) when both ports are disabled with CMOS-level inputs (CE > VCC − 0.2V), as documented in Table 04a for LA versions at 25°C. This ultra-low quiescent draw enables energy-efficient hold modes in battery-backed or low-power industrial systems.
Can IDT7132LA25JI8 be used as a standalone dual-port RAM without a slave device?
Yes, IDT7132LA25JI8 functions fully as a standalone 8-bit dual-port SRAM with complete left/right port independence, arbitration, and BUSY signaling. Its MASTER designation indicates capability-not requirement-for pairing with IDT7142 SLAVE devices; no external slave is needed for basic dual-access operation.
7132LA25JI8 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:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7132LA25JI8 FAQ
1.How can I place an order for 7132LA25JI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA25JI8 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 7132LA25JI8 reliable?
The price and inventory of 7132LA25JI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA25JI8 is usually 5 days.
3.What payment methods are accepted for 7132LA25JI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA25JI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA25JI8?
7132LA25JI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA25JI8 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 7132LA25JI8?
For technical support, including 7132LA25JI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA25JI8 requirements.
6.How does Aetrix verify that 7132LA25JI8 is sourced from the original manufacturer or authorized distributors?
All 7132LA25JI8 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 7132LA25JI8 meets industry standards.
7.What is the process for return or replacement of 7132LA25JI8?
All 7132LA25JI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA25JI8, 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 7132LA25JI8 part is unused and in its original packaging.
Return procedure for 7132LA25JI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA25JI8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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