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Renesas 7132LA100J8
- Part No.:
- 7132LA100J8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7132LA100J8.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,868
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Product details
Overview
7132LA100J8 from IDT is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag (open-drain), 100 ns max read/write cycle time, 5 V ±10% supply, and battery-backed data retention down to 2 V - used in real-time embedded systems requiring concurrent access to shared memory buffers.
For engineers reviewing the 7132LA100J8 datasheet, 7132LA100J8 pinout, 7132LA100J8 application, or 7132LA100J8 equivalent, this page delivers verified timing specs (tRC = 100 ns), standby current (ISB3 = 0.2 mA typ.), BUSY arbitration behavior, industrial temperature support (–40°C to +85°C), and package-specific pin validation for the 48-pin flatpack (FP48) variant.
Technical Context
The 7132LA100J8 implements independent left/right ports with separate address (A0L–A10L / A0R–A10R), control (CEL/CER, OEL/OER, R/WL/R/WR), and bidirectional I/O (I/O0L–I/O7L / I/O0R–I/O7R) lines, enabling fully asynchronous read/write operations without external logic. Its on-chip arbitration logic resolves port contention via BUSYL/BUSYR outputs that assert low when address matches occur across ports.
As a MASTER device, it drives open-drain BUSY signals requiring 270 Ω pull-up resistors; BUSY timing includes tBAA ≤ 50 ns and tBDD ≤ 65 ns (for 100 ns version). It supports battery backup mode at VCC = 2 V with ICCDR ≤ 4000 µA (military/industrial) and tCDR = 0 ns chip deselect-to-retention delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit wide), enabling compact dual-access buffer storage |
| Access Time (tRC) | 100 ns max - defines minimum cycle interval for reliable consecutive reads/writes |
| Supply Voltage | 5.0 V ±10% - compatible with standard TTL/CMOS logic rails; no level-shifting required |
| Standby Current (ISB3) | 0.2 mA typical - enables ultra-low-power hold mode during idle periods with CMOS-level inputs |
| Data Retention | 2.0 V min - preserves memory contents during brown-out or battery-backup operation |
| Operating Temp | –40°C to +85°C - qualified for industrial environments without derating |
| BUSY Logic | On-chip arbitration with tAPS = 5 ns setup - ensures deterministic port priority resolution |
Pinout & Package
7132LA100J8 is packaged in a 48-lead flatpack (FP48) with 0.75″ × 0.75″ footprint and 0.11″ height, featuring dual-row gull-wing leads and index mark for orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Must be connected to system ground plane; both pins required for noise immunity |
| VCC (Pin 25) | Power supply | 5 V ±10% supply input; decoupling capacitor required within 1 cm |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down entry (ISB1–ISB4 states) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z state when disabled |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines direction of I/O bus transfer |
| BUSYL / BUSYR | BUSY flag (output only) | Open-drain outputs requiring 270 Ω pull-up; indicate port contention on matching addresses |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses selecting one of 2048 memory locations per port |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional data (left/right) | 8-bit parallel data paths; tristated when CE or OE inactive |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration | Resolves simultaneous access conflicts without external logic; guarantees deterministic priority via tAPS = 5 ns |
| Open-drain BUSY outputs | Enable wired-OR expansion across multiple MASTER/SLAVE arrays without gate logic |
| Battery backup retention | Maintains data integrity at 2 V supply - critical for fail-safe memory in power-loss scenarios |
| Dual independent ports | Full asynchronous operation: left port can read while right port writes same address (with BUSY gating) |
| Low-power standby modes | ISB3 = 0.2 mA typ. at full CMOS input bias - reduces system quiescent power in idle states |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
|
Use Scenario: Simultaneous acquisition of encoder feedback (Port A) and generation of PWM commands (Port B) in servo drive firmware. IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized FIFO buffer between ADC capture engine and motor control loop, eliminating software handshaking overhead. Use Value: 100 ns tRC enables sub-microsecond memory access, supporting 1 MHz control loop rates without pipeline stalls. |
Use Scenario: Coordinating PLC scan cycles with fieldbus communication stacks (e.g., EtherCAT) where local memory must be accessed by both CPU and protocol engine. IC Role / Device Role / Timing Role: MASTER 7132LA100J8 provides atomic read-modify-write capability across execution and comms domains using BUSY arbitration. Use Value: On-chip arbitration prevents race conditions during concurrent updates to shared status registers, eliminating need for software semaphores. |
| Avionics Data Logging | Medical Imaging Buffering |
|
Use Scenario: Recording flight sensor data (accelerometers, gyros) while simultaneously allowing ground-station replay queries over ARINC-429 interface. IC Role / Device Role / Timing Role: Acts as non-volatile shadow RAM with 2 V data retention - retains last 2K samples during main power loss. Use Value: Battery backup capability ensures crash data persistence without external EEPROM or FRAM, reducing BOM count and failure points. |
Use Scenario: Storing raw ultrasound frame data (8-bit pixel stream) while display subsystem renders previous frames from same memory space. IC Role / Device Role / Timing Role: Provides zero-wait-state buffering between high-speed ADC front-end and graphics controller, decoupling timing domains. Use Value: Independent 8-bit ports eliminate bus turnaround delays, sustaining >30 MB/s sustained throughput for real-time video streaming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-100AXC | 100 ns tRC, 2K × 8, but no built-in BUSY arbitration; requires external logic for contention management | Lacks master/slave arbitration - unsuitable for direct replacement in systems relying on hardware BUSY signaling | Select only if arbitration is handled externally and 48-pin SOIC package is preferred over FP48 |
| IDT7142LA100J8 | Same speed, voltage, and retention, but SLAVE-only: BUSY pins are inputs, no on-chip arbitration logic | Designed exclusively for width-expansion configurations paired with 7132LA; cannot operate standalone as MASTER | Use only as companion SLAVE in 16-bit+ systems; not functionally interchangeable with 7132LA100J8 |
Compared with CY7C133-100AXC and IDT7142LA100J8, the 7132LA100J8 uniquely integrates arbitration logic and open-drain BUSY outputs - essential for systems requiring autonomous conflict resolution without FPGA or CPLD intervention.
Availability
7132LA100J8 is available at Aetrix Electronics and suitable for real-time digital signal processing, industrial motion control, and avionics data logging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 7132LA100J8 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
IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance memory, timing, and interface solutions for communications, computing, and industrial markets.
The IDT7132/7142 product line was designed specifically for deterministic, low-latency dual-access memory applications in safety-critical and real-time embedded systems - emphasizing hardware arbitration, battery retention, and industrial reliability.
FAQ
What is the maximum operating temperature range for the 7132LA100J8?
The 7132LA100J8 is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the "Recommended Operating Temperature" table. This rating applies to all speed grades including the 100 ns version, and is validated under full DC and AC specifications with VCC = 5.0 V ±10%.
Does the 7132LA100J8 support true dual-port concurrent read/write to the same address?
No - the 7132LA100J8 uses hardware BUSY arbitration to prevent corruption. When both ports access the same address, BUSYL/BUSYR assert low to inhibit the later-arriving write. The winning port proceeds; the losing port's write is gated internally, ensuring data integrity without software intervention.
What pull-up resistor value is required for the BUSY outputs on the 7132LA100J8?
A 270 Ω pull-up resistor is required for each BUSY output (BUSYL and BUSYR), as explicitly stated in Note 1 of the Features section and Figure 3 ("BUSY AC Output Test Load"). This value ensures proper VOL ≤ 0.5 V at IOL = 16 mA while maintaining noise margin in industrial environments.
Can the 7132LA100J8 retain data at 2.0 V without external circuitry?
Yes - the 7132LA100J8 supports guaranteed data retention at VCC = 2.0 V (per Table 6), drawing ≤ 4000 µA in retention mode. No external capacitors or backup batteries beyond the 2 V source are needed; the LA suffix denotes this low-voltage retention capability inherent to the silicon design.
Which package type corresponds to the 'J8' suffix in 7132LA100J8?
The 'J8' suffix identifies the 48-pin flatpack (FP48) package, as documented in the Pin Configurations section and Ordering Information tables. FP48 has a 0.75″ × 0.75″ body size and gull-wing leads - distinct from DIP, LCC, or PLCC variants offered in the same family.
7132LA100J8 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:
- 100ns
- Access Time:
- 100 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)
7132LA100J8 FAQ
1.How can I place an order for 7132LA100J8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA100J8 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 7132LA100J8 reliable?
The price and inventory of 7132LA100J8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA100J8 is usually 5 days.
3.What payment methods are accepted for 7132LA100J8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA100J8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA100J8?
7132LA100J8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA100J8 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 7132LA100J8?
For technical support, including 7132LA100J8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA100J8 requirements.
6.How does Aetrix verify that 7132LA100J8 is sourced from the original manufacturer or authorized distributors?
All 7132LA100J8 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 7132LA100J8 meets industry standards.
7.What is the process for return or replacement of 7132LA100J8?
All 7132LA100J8 units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA100J8, 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 7132LA100J8 part is unused and in its original packaging.
Return procedure for 7132LA100J8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA100J8 Tags
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