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Renesas 7132SA55P
- Part No.:
- 7132SA55P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7132SA55P.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,319
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Product details
Overview
IDT7132SA55P 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 55 ns maximum read/write cycle time. It operates on a single 5V ±10% supply, supports industrial temperature range (–40°C to +85°C), and enables error-free 16-bit-or-wider memory expansion when paired with IDT7142 SLAVE devices in real-time embedded control systems.
For engineers reviewing the IDT7132SA55P datasheet, IDT7132SA55P pinout, IDT7132SA55P application, or IDT7132SA55P equivalent, key selection criteria include its 55 ns access timing, open-drain BUSY outputs requiring 270 Ω pull-up, TTL-compatible I/O, 48-pin flatpack package, and master-side arbitration capability for concurrent port contention resolution.
Technical Context
The IDT7132SA55P implements independent left/right ports with separate address (A0–A10), data (I/O0–I/O7), and control lines (CEL/CER, OEL/OER, R/WL/R/WR, BUSYL/BUSYR). Its on-chip arbitration logic asserts BUSY outputs based on address and chip-enable match detection - not read/write state - enabling deterministic port priority resolution without external logic.
As a MASTER device, it features open-drain BUSYL and BUSYR outputs (requiring 270 Ω pull-ups), while SLAVE IDT7142 devices use those signals as write-inhibit inputs. The device supports full standby power-down via CE control, achieving 1.0 mA typical ISB3 current under CMOS-level inactive conditions at 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 8 (2048 words × 8 bits), dual-port asynchronous SRAM |
| Access Time (tAA) | 55 ns max - defines minimum address hold before valid data appears |
| Read Cycle Time (tRC) | 55 ns max - sets minimum interval between successive read operations |
| Write Cycle Time (tWC) | 55 ns max - determines shortest time between consecutive write initiations |
| Supply Voltage | 4.5 V to 5.5 V - single TTL-compatible rail; no auxiliary supplies required |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
| Standby Current (ISB3) | 1.0 mA typ. - ultra-low power consumption when both ports fully disabled |
Pinout & Package
Package: 48-lead flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, hermetically sealed, MIL-PRF-38535 QML-compliant for high-reliability operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Both pins must be connected to system ground; decoupling required per pin |
| VCC (Pin 25) | Power supply | Single 5V ±10% supply; all VCC pins must be connected to same rail |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down mode when high |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z when deasserted |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines data direction on I/O bus |
| BUSYL / BUSYR | Busy flag (left/right) | Open-drain outputs; require 270 Ω pull-up; indicate address contention |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses; support full 2K-word addressing 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 |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same memory location without external logic; ensures deterministic port priority |
| Master-only BUSY outputs | BUSYL/BUSYR are open-drain flags signaling contention - used to stall writes on slave devices in width-expanded arrays |
| Independent port power management | Each port enters low-power standby (ISB2 ≤ 40 mA typ.) when CE = VIH, enabling selective port shutdown |
| TTL-compatible interface | Direct connection to 5V logic families without level shifters; VIH = 2.2 V min., VIL = 0.8 V max. |
| Industrial temperature qualification | Validated operation from –40°C to +85°C across full speed grade (55 ns), supporting harsh-environment control systems |
Applications
| Real-Time Digital Signal Processing | Industrial Motion Control |
|---|---|
|
Use Scenario: Concurrent access to shared coefficient tables and buffer memory by DSP core and FPGA-based I/O controller. IC Role / Device Role / Timing Role: IDT7132SA55P acts as MASTER dual-port RAM providing synchronized, contention-free data exchange with sub-60 ns latency. Use Value: Eliminates software arbitration overhead and guarantees deterministic timing for servo loop updates at 20 kHz. |
Use Scenario: Coordinated read/write between PLC CPU and motion ASIC accessing position/velocity lookup tables. IC Role / Device Role / Timing Role: IDT7132SA55P serves as central memory hub with hardware BUSY arbitration preventing race conditions during axis synchronization. Use Value: Enables glitch-free multi-axis trajectory generation without CPU intervention or additional gate logic. |
| Avionics Data Acquisition | Medical Imaging Buffering |
|
Use Scenario: Simultaneous sampling of sensor data (ADC) and real-time telemetry packet assembly (FPGA). IC Role / Device Role / Timing Role: IDT7132SA55P functions as radiation-tolerant, QML-qualified memory buffer with deterministic 55 ns access. Use Value: Meets DO-254 timing closure requirements for Class E airborne systems with zero arbitration jitter. |
Use Scenario: High-throughput transfer of ultrasound frame data between acquisition front-end and image processing engine. IC Role / Device Role / Timing Role: IDT7132SA55P operates as MASTER RAM interfacing two independent DMA channels with hardware contention resolution. Use Value: Sustains 160 MB/s effective bandwidth (8-bit × 20 MHz) without frame drop or pipeline stall. |
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 CY7C136-55JC | 55 ns access, 2K × 8, but lacks on-chip arbitration logic and BUSY outputs; requires external glue logic for contention handling | Not suitable for MASTER/SLAVE width expansion without discrete AND/OR gates and timing compensation | Select only if arbitration is handled in FPGA or microcontroller firmware and board space permits added logic |
| Renesas R1LV22424AS-55SI | 55 ns, 2K × 8, supports industrial temp, but uses push-pull BUSY and different pinout; no open-drain compatibility | Incompatible with IDT7132SA55P's 270 Ω pull-up topology and arbitration signaling protocol | Use only in new designs where BUSY routing and arbitration architecture can be redesigned |
Compared with CY7C136-55JC and R1LV22424AS-55SI, IDT7132SA55P uniquely integrates arbitration logic and open-drain BUSY outputs - eliminating external components required for width-expansion reliability in real-time control systems.
Availability
IDT7132SA55P is available at Aetrix Electronics and suitable for industrial motion control, avionics data acquisition, and medical imaging buffering requiring stable component supply, long-term lifecycle assurance, and QML-compliant packaging.
Supply support for IDT7132SA55P 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; legacy IDT products remain widely deployed in high-reliability systems.
IDT7132SA55P belongs to the IDT7132/7142 dual-port SRAM family, designed specifically for deterministic, low-latency memory sharing between heterogeneous processors, FPGAs, and ASICs in real-time embedded environments.
FAQ
What is the function of BUSYL and BUSYR on the IDT7132SA55P?
BUSYL and BUSYR are open-drain outputs on the IDT7132SA55P that signal address contention between left and right ports. When asserted low, they indicate that both ports attempted access to the same memory location simultaneously. These signals require 270 Ω pull-up resistors and are used to stall writes on SLAVE IDT7142 devices in width-expanded configurations. The IDT7132SA55P does not use BUSY as an input - it is master-only.
Can the IDT7132SA55P operate in battery backup mode?
No, the IDT7132SA55P cannot operate in battery backup mode. Only the LA variant (e.g., IDT7132LA55P) supports 2V data retention. The 'SA' suffix denotes standard active power consumption (325 mW typ.), while 'LA' indicates low-power design with battery backup capability. The IDT7132SA55P retains data only while powered by its primary 5V supply.
Which packages are available for the IDT7132SA55P?
The IDT7132SA55P is available in 48-pin flatpack (FP48), 48-pin LCC (LC48), 48-pin sidebraze DIP (SB48), and 52-pin PLCC (PLG52) packages. The FP48 variant is QML-qualified per MIL-PRF-38535 and specified for industrial temperature operation. Package selection affects thermal performance, board area, and soldering process - FP48 and LC48 offer hermetic sealing for high-reliability applications.
How does the IDT7132SA55P handle simultaneous read and write to the same address?
The IDT7132SA55P uses on-chip arbitration logic to resolve simultaneous access: one port proceeds (determined by tAPS setup time), while the other receives a BUSY assertion. For reads, data remains valid after tBDD delay; for writes, the inhibited port's R/W signal is gated internally. This hardware arbitration eliminates race conditions without software intervention - a core design feature of the IDT7132SA55P.
Is the IDT7132SA55P pin-compatible with the IDT7142SA55P?
No, the IDT7132SA55P is not pin-compatible with the IDT7142SA55P. Although both share identical pin counts and physical layout in FP48/LCC/DIP packages, their BUSY pin functionality differs fundamentally: IDT7132SA55P has BUSYL/BUSYR as open-drain outputs, while IDT7142SA55P has them as inputs. Swapping them without redesigning BUSY routing and pull-up logic will cause functional failure.
7132SA55P 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
7132SA55P FAQ
1.How can I place an order for 7132SA55P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132SA55P 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 7132SA55P reliable?
The price and inventory of 7132SA55P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132SA55P is usually 5 days.
3.What payment methods are accepted for 7132SA55P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132SA55P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132SA55P?
7132SA55P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132SA55P 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 7132SA55P?
For technical support, including 7132SA55P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132SA55P requirements.
6.How does Aetrix verify that 7132SA55P is sourced from the original manufacturer or authorized distributors?
All 7132SA55P 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 7132SA55P meets industry standards.
7.What is the process for return or replacement of 7132SA55P?
All 7132SA55P units undergo pre-shipment inspection (PSI). If there is an issue with 7132SA55P, 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 7132SA55P part is unused and in its original packaging.
Return procedure for 7132SA55P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132SA55P Tags
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