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Renesas 7132SA35L48B
- Part No.:
- 7132SA35L48B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-LCC
- Datasheet:
-
7132SA35L48B.pdf
- Description:
- IC SRAM 16KBIT PARALLEL 48LCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
7132SA35L48B from IDT (Integrated Device Technology) is a high-speed 2K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag, 35 ns maximum read cycle time, TTL-compatible 5V ±10% operation, and 48-pin flatpack (FP48) packaging - used in real-time embedded systems requiring concurrent access to shared memory by two independent controllers, such as digital signal processors and microcontrollers.
For engineers reviewing the 7132SA35L48B datasheet, 7132SA35L48B pinout, 7132SA35L48B application, or 7132SA35L48B equivalent, this page delivers verified technical context, exact pin functions for FP48 layout, confirmed standby power (5 mW typ.), BUSY arbitration timing (tBAA ≤ 20 ns), and validated alternatives for width-expansion memory architectures.
Technical Context
The 7132SA35L48B implements independent left/right ports with separate address (A0–A10), control (CEL/CER, OEL/OER, R/WL/R/WR), and I/O (I/O0–I/O7) buses, enabling fully asynchronous read/write operations without external synchronization logic. Its on-chip arbitration logic resolves port contention via BUSYL/BUSYR open-drain outputs that assert when both ports access the same address simultaneously.
As a MASTER device, it drives BUSY signals to coordinate write inhibition in SLAVE-coupled configurations (e.g., with IDT7142), supports battery backup data retention only in LA variants (not applicable here), and requires 270 Ω pull-up resistors on BUSY pins per datasheet Note 1 and Figure 3. It operates across commercial temperature range (0°C to +70°C) and consumes 325 mW typical active power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit data width), enabling compact dual-access buffer storage |
| Access Time | 35 ns max read cycle time (tRC), supporting 28.6 MHz sustained throughput in synchronous bus interfaces |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V), compatible with legacy TTL and 5V CMOS system rails without level translation |
| Standby Power | 5 mW typical (ISB3), allowing low-power hold mode during processor idle cycles without data loss |
| Operating Temp | 0°C to +70°C (Commercial grade), validated for industrial control panels and test equipment environments |
| Arbitration Logic | On-chip port-to-port arbitration with tAPS = 5 ns setup, eliminating need for external priority encoders |
| BUSY Interface | Open-drain BUSYL/BUSYR outputs requiring 270 Ω pull-ups, providing hardware-level write-inhibit signaling |
Pinout & Package
7132SA35L48B is packaged in a 48-lead flatpack (FP48) with 0.75″ × 0.75″ body and side-braze construction per MIL-PRF-38535 QML compliance. Pin numbering follows top-view orientation with index corner marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Two dedicated ground pins ensure stable return path for both ports' I/O and core logic |
| VCC (Pin 25) | Power supply | Single 5V supply powers entire dual-port array and arbitration circuitry; all VCC pins must be connected |
| CEL / CER (Pins 3, 4) | Chip enable (left/right) | Active-low enables respective port; deassertion places port in ISB1/ISB3 low-power standby |
| OEL / OER (Pins 5, 48) | Output enable (left/right) | Controls tri-state of I/O drivers; high-Z state prevents bus contention during inactive reads |
| R/WL / R/WR (Pins 6, 47) | Read/write control (left/right) | Low = write, high = read; determines direction of data flow on associated I/O bus |
| BUSYL / BUSYR (Pins 7, 46) | BUSY flag (left/right) | Open-drain outputs asserting low during address collision; require external 270 Ω pull-up per Note 1 |
| A0L–A10L / A0R–A10R (Pins 8–18, 31–41) | Address inputs (left/right) | 11-bit address buses (2048 locations); matched routing required for deterministic arbitration |
| I/O0L–I/O7L / I/O0R–I/O7R (Pins 19–23, 26–30, 32–39, 42–45) | Data I/O (left/right) | Bi-directional 8-bit data paths; electrically isolated between ports to prevent coupling |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access without external logic, reducing BOM count and PCB area |
| Master-only BUSY output | Enables scalable width expansion with IDT7142 slaves using single BUSY signal fanout, avoiding discrete AND gates |
| TTL-compatible interface | Direct connection to 5V microcontrollers and DSPs without level shifters, simplifying interconnect design |
| Low-power standby mode | 5 mW typical consumption (ISB3) extends system battery life in portable instrumentation applications |
| 48-pin flatpack packaging | MIL-PRF-38535 QML-compliant hermetic package ensures reliability in vibration-prone military/aerospace platforms |
Applications
| Digital Signal Processing Buffer | Real-Time Industrial Controller |
|---|---|
|
Use Scenario: Dual-core DSP system where one core writes sensor-acquired data while the other reads and processes it in parallel. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as zero-latency shared buffer with hardware arbitration preventing data corruption during concurrent access. Use Value: Eliminates software semaphore overhead and guarantees deterministic 35 ns read response, enabling sub-microsecond loop execution. |
Use Scenario: PLC backplane with CPU and motion controller accessing shared configuration and status registers. IC Role / Device Role / Timing Role: Memory coherency enabler with BUSY-driven write inhibition ensuring atomic updates to critical I/O mapping tables. Use Value: Prevents race conditions during firmware updates or parameter changes, maintaining functional safety integrity. |
| Avionics Data Acquisition Module | Test Equipment Pattern Memory |
|
Use Scenario: Flight data recorder interfacing ARINC 429 receiver and Ethernet upload processor via shared memory. IC Role / Device Role / Timing Role: High-reliability MASTER SRAM with QML flatpack packaging and 0°C–70°C operation meeting DO-254 requirements. Use Value: Hermetic FP48 package withstands thermal cycling and shock, while 35 ns access meets real-time telemetry buffering deadlines. |
Use Scenario: Automated test system storing stimulus/response vectors for semiconductor wafer probing. IC Role / Device Role / Timing Role: Deterministic dual-port memory enabling simultaneous vector loading (via GPIB) and pattern playback (to DUT). Use Value: 2K × 8 capacity supports 2048-cycle test sequences; 35 ns tRC allows >28 MHz pattern rates without pipeline stalls. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT7132SA25L48B | 25 ns max read cycle (vs. 35 ns); identical FP48 package, pinout, and arbitration logic | Suitable for higher-clock-rate systems requiring <25 ns latency; consumes same 325 mW active power | Select when system timing budget demands tighter tRC; verify BUSY propagation delay compatibility in master/slave chains |
| Cypress CY7C136-25JC | 2K × 8, 25 ns, 5V, 48-pin PLCC; no integrated BUSY arbitration - requires external logic for contention resolution | Used where board space permits discrete arbitration or where simpler point-to-point dual-port use cases dominate | Choose when cost sensitivity outweighs integration benefit; accept added design complexity for equivalent speed |
Compared with IDT7132SA25L48B, the 7132SA35L48B trades 10 ns slower access for broader timing margin in noise-prone environments; versus CY7C136-25JC, it delivers plug-and-play arbitration at the cost of vendor-specific ecosystem lock-in.
Availability
7132SA35L48B is available at Aetrix Electronics and suitable for digital signal processing buffers, real-time industrial controllers, and avionics data acquisition modules requiring stable component supply, long-term obsolescence management, and MIL-PRF-38535-compliant packaging.
Supply support for 7132SA35L48B 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) was a fabless semiconductor company specializing in high-performance memory, timing, and interface solutions before its acquisition by Renesas Electronics in 2019.
The IDT7132 family was designed specifically for real-time embedded systems needing deterministic dual-port memory access with hardware arbitration - targeting military, industrial, and communications infrastructure applications.
FAQ
What is the maximum operating temperature range for the 7132SA35L48B?
The 7132SA35L48B is rated for commercial temperature operation from 0°C to +70°C, as specified in the Recommended Operating Conditions table. It does not support industrial (–40°C to +85°C) or military (–55°C to +125°C) ranges - those require suffix variants like 7132SA35I or 7132SA35M. This grading is fixed per the FP48 package and SA speed bin.
Does the 7132SA35L48B support battery backup data retention?
No, the 7132SA35L48B does not support battery backup data retention. That feature is exclusive to LA-suffixed variants (e.g., 7132LA35L48B), which specify 2V data retention capability per Table 6. The "SA" suffix denotes standard active power profile with 5 mW standby current, not low-power retention mode.
How should the BUSY pins on the 7132SA35L48B be terminated?
BUSYL and BUSYR on the 7132SA35L48B are open-drain outputs requiring external 270 Ω pull-up resistors to VCC, as explicitly stated in Note 1 of the datasheet and Figure 3. Failure to install these resistors will prevent proper BUSY assertion during address contention, risking data corruption in master/slave configurations.
Can the 7132SA35L48B be used as a SLAVE device in a width-expanded memory array?
No, the 7132SA35L48B is functionally designated as a MASTER device only. SLAVE functionality - including BUSY input behavior and absence of on-chip arbitration logic - is implemented exclusively in the IDT7142 series (e.g., 7142SA35L48B). Using a 7132 as a slave violates the functional block diagram and truth tables, leading to undefined BUSY signaling and potential write failures.
What is the pin-compatible replacement for the 7132SA35L48B in PLCC packaging?
There is no pin-compatible PLCC replacement for the 7132SA35L48B, as it is specified for 48-pin flatpack (FP48) only. The 52-pin PLCC variant is assigned to the IDT7132SA35PGI (PLG52), which has different pin count, layout, and mechanical dimensions. Direct substitution would require PCB redesign due to incompatible footprint and signal mapping.
7132SA35L48B 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:
- 35ns
- Access Time:
- 35 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)
7132SA35L48B FAQ
1.How can I place an order for 7132SA35L48B through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132SA35L48B 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 7132SA35L48B reliable?
The price and inventory of 7132SA35L48B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132SA35L48B is usually 5 days.
3.What payment methods are accepted for 7132SA35L48B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132SA35L48B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132SA35L48B?
7132SA35L48B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132SA35L48B 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 7132SA35L48B?
For technical support, including 7132SA35L48B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132SA35L48B requirements.
6.How does Aetrix verify that 7132SA35L48B is sourced from the original manufacturer or authorized distributors?
All 7132SA35L48B 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 7132SA35L48B meets industry standards.
7.What is the process for return or replacement of 7132SA35L48B?
All 7132SA35L48B units undergo pre-shipment inspection (PSI). If there is an issue with 7132SA35L48B, 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 7132SA35L48B part is unused and in its original packaging.
Return procedure for 7132SA35L48B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132SA35L48B Tags
-
M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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