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Renesas 7132LA55P
- Part No.:
- 7132LA55P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7132LA55P.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,163
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Product details
Overview
IDT7132LA55P 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, 55 ns maximum read/write cycle time, 1 mW typical standby power, and battery-backed data retention at 2 V. It enables full-speed 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.
For engineers reviewing the IDT7132LA55P datasheet, IDT7132LA55P pinout, IDT7132LA55P application, or IDT7132LA55P equivalent, key selection considerations include BUSY arbitration timing (tBAA ≤ 30 ns), dual independent port access with TTL-compatible 5 V ±10% supply, and industrial temperature support (–40°C to +85°C) in 48-pin flatpack or LCC packages.
Technical Context
The IDT7132LA55P implements hardware-based port arbitration using dedicated BUSYL/BUSYR open-drain outputs that assert during address contention between left and right ports - enabling deterministic write-inhibit without external logic. Its CMOS design supports asynchronous, independent read/write operations on both ports with no internal synchronization overhead.
As a MASTER-only device, it integrates arbitration priority setup (tAPS = 5 ns), BUSY access/disable timing referenced to address or chip enable, and automatic power-down via CE-controlled standby modes (ISB3 ≤ 0.2 mA). The LA variant adds 2 V data retention capability absent in SA versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 (2048 words × 8 bits); supports independent addressing per port with A0–A10 inputs on each side. |
| Access Time | 55 ns max tRC/tWC; guarantees full-speed operation in 16-bit bus systems using MASTER/SLAVE expansion. |
| Standby Current | 0.2 mA typ ISB3 (full CMOS-level standby); enables ultra-low-power hold mode during system sleep states. |
| Data Retention | 2.0 V minimum VCC; retains valid data without refresh during brown-out or backup-battery operation. |
| Operating Voltage | 5.0 V ±10%; compatible with legacy TTL logic families and eliminates need for level-shifting circuitry. |
| Temperature Range | –40°C to +85°C industrial grade; qualified for extended-life deployment in motor control and avionics subsystems. |
| Arbitration Logic | On-chip BUSY flag generation (tBDD ≤ 50 ns); resolves port conflicts deterministically without software intervention. |
Pinout & Package
Package: 48-pin Flatpack (FP48) or Leadless Ceramic Chip Carrier (LC48), both RoHS-compliant and MIL-PRF-38535 QML-qualified for high-reliability applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Active-low port selection; controls power-down entry (ISB1–ISB4) and enables arbitration logic activation. |
| OEL / OER | Output Enable (Left/Right) | Active-low tri-state control for I/O pins; allows shared bus operation without external bus transceivers. |
| R/WL / R/WR | Read/Write Control (Left/Right) | Active-low signal defining data direction; combined with CE determines whether port performs read or write. |
| BUSYL / BUSYR | BUSY Flag (Left/Right Output) | Open-drain outputs requiring 270 Ω pull-up; indicate address contention and gate writes on contested ports. |
| A0L–A10L / A0R–A10R | Address Inputs (Left/Right) | 11-bit independent addressing per port; supports simultaneous access to different memory locations. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O Lines (Left/Right) | Bidirectional 8-bit data paths; high-impedance when OE or CE inactive, eliminating bus contention risk. |
| VCC / GND | Power Supply | Single 5 V ±10% supply; all VCC/GND pins must be connected - decoupling required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| MASTER arbitration logic | Enables deterministic 16-bit+ memory expansion with IDT7142 SLAVE parts - no external glue logic required. |
| 2 V data retention (LA only) | Preserves memory contents during main power loss using backup battery; validated at TA = +25°C. |
| Open-drain BUSY outputs | Support wired-OR BUSY signaling across multiple MASTER/SLAVE arrays - simplifies interrupt-driven conflict handling. |
| TTL-compatible interface | Direct connection to legacy microcontrollers and FPGAs without level translation; VIH = 2.2 V min, VIL = 0.8 V max. |
| Industrial temperature range | Qualified from –40°C to +85°C; suitable for under-hood automotive ECUs and industrial PLC backplanes. |
Applications
| Real-Time Motor Control | Digital Signal Processing Buffer |
|---|---|
|
Use Scenario: Simultaneous position feedback capture (left port) and PWM update (right port) in servo drive firmware. IC Role / Device Role / Timing Role: MASTER dual-port SRAM providing zero-latency, conflict-free access to shared motion profile tables. Use Value: Eliminates software arbitration delays; BUSY logic prevents corrupted torque commands during rapid direction reversals. |
Use Scenario: Co-processor offloading where DSP writes processed samples while host MCU reads results. IC Role / Device Role / Timing Role: Asymmetric buffer with independent clock domains - left port synchronized to ADC sampling, right to CPU bus. Use Value: Enables lock-free data exchange; 55 ns access ensures no pipeline stalls in 20 MIPS+ embedded processors. |
| Avionics Display Frame Buffer | Redundant Flight Control Memory |
|
Use Scenario: Graphics controller rendering new frame (right port) while display engine scans out previous frame (left port). IC Role / Device Role / Timing Role: Dual-port video memory with pixel-aligned read/write isolation; BUSY prevents tearing during mid-frame updates. Use Value: Guarantees glitch-free overlay rendering; 2 V retention preserves last known display state during power transitions. |
Use Scenario: Cross-checked flight parameter storage where two independent channels write identical data to mirrored addresses. IC Role / Device Role / Timing Role: Fault-tolerant memory node with hardware-enforced write coordination via BUSY handshake. Use Value: Detects and blocks conflicting writes before corruption occurs - satisfies DO-254 Level A deterministic requirements. |
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 | 3.3 V core, 150 MHz sync interface, no built-in arbitration logic; requires external BUSY management. | Targets modern low-voltage SoC designs; unsuitable for 5 V legacy systems or autonomous arbitration use cases. | Select only if migrating to 3.3 V architecture and implementing custom arbitration in FPGA logic. |
| IDT7142LA55P | SLAVE-only variant; BUSY pins are inputs (not outputs); lacks on-chip arbitration logic and MASTER functionality. | Used exclusively in width-expanded arrays with IDT7132; cannot operate stand-alone as memory controller. | Choose only as companion part in multi-chip 16-bit+ configurations - never as direct replacement for IDT7132LA55P. |
Compared with CY7C1371DV33 and IDT7142LA55P, the IDT7132LA55P uniquely delivers self-contained 5 V MASTER arbitration in a single package - reducing BOM count and eliminating timing-critical external logic for safety-critical real-time memory access.
Availability
IDT7132LA55P is available at Aetrix Electronics and suitable for real-time motor control, avionics display buffering, and redundant flight control systems requiring stable component supply across extended product lifecycles.
Supply support for IDT7132LA55P 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.
The IDT7132/7142 family was designed specifically for deterministic, low-latency dual-access memory in hard real-time embedded systems - emphasizing hardware arbitration, battery backup, and military-grade reliability.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132LA55P?
BUSYL and BUSYR are open-drain arbitration outputs on the IDT7132LA55P that signal address contention between left and right ports. When asserted low, they internally inhibit writes on the corresponding port - ensuring deterministic resolution without software overhead. Each requires a 270 Ω pull-up resistor to 5 V per datasheet specification.
Does the IDT7132LA55P support true 55 ns access in industrial temperature range?
Yes, the IDT7132LA55P guarantees 55 ns maximum read/write cycle time (tRC/tWC) over the full industrial temperature range of –40°C to +85°C, as confirmed in Table 08b and Table 09 of the official datasheet revision May.27.21. This applies to FP48 and LC48 packages.
Can the IDT7132LA55P operate as a standalone 8-bit memory without IDT7142 slaves?
Yes, the IDT7132LA55P functions fully as a stand-alone 2K × 8 dual-port SRAM. Its MASTER arbitration logic remains active but unused unless address contention occurs. All control, address, and I/O signals operate independently on both ports - no slave device is required for basic dual-access operation.
What is the minimum VCC required to retain data in the IDT7132LA55P?
The IDT7132LA55P maintains valid data down to VCC = 2.0 V in retention mode, as specified in Table 06 (Data Retention Characteristics). This applies only to LA variants; SA versions do not support battery backup. Retention current is ≤ 100 µA typical at +25°C.
Which packages are available for the IDT7132LA55P?
The IDT7132LA55P is offered in 48-pin Flatpack (FP48), 48-pin LCC (LC48), and 48-pin sidebraze DIP (SB48) packages. PLCC variants (52-pin) exist for the broader 7132/7142 family but are not rated for the 55 ns speed grade - only FP48 and LC48 support IDT7132LA55P.
7132LA55P 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:
- 55ns
- Access Time:
- 55 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
7132LA55P FAQ
1.How can I place an order for 7132LA55P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132LA55P 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 7132LA55P reliable?
The price and inventory of 7132LA55P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132LA55P is usually 5 days.
3.What payment methods are accepted for 7132LA55P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132LA55P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132LA55P?
7132LA55P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132LA55P 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 7132LA55P?
For technical support, including 7132LA55P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132LA55P requirements.
6.How does Aetrix verify that 7132LA55P is sourced from the original manufacturer or authorized distributors?
All 7132LA55P 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 7132LA55P meets industry standards.
7.What is the process for return or replacement of 7132LA55P?
All 7132LA55P units undergo pre-shipment inspection (PSI). If there is an issue with 7132LA55P, 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 7132LA55P part is unused and in its original packaging.
Return procedure for 7132LA55P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132LA55P Tags
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