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Renesas 7132SA100CB
- Part No.:
- 7132SA100CB
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7132SA100CB.pdf
- Description:
- IC SRAM 16KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:2,670
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Product details
Overview
7132SA100CB 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 cycle time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). 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 7132SA100CB datasheet, 7132SA100CB pinout, 7132SA100CB application, or 7132SA100CB equivalent, key selection considerations include BUSY arbitration timing (tBAA ≤ 50 ns), dual-port asynchronous access capability, open-drain BUSY pull-up requirement (270 Ω), 48-pin flatpack package compatibility, and LA/SA power variant differentiation for battery-retention support.
Technical Context
The 7132SA100CB implements independent left/right port control 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 resolves simultaneous accesses to identical addresses by asserting BUSY outputs to stall the later-arriving write-based solely on chip enable and address signal timing, not R/W state.
As a MASTER-only device, it features two open-drain BUSY outputs requiring external 270 Ω pull-up resistors; BUSY behavior differs fundamentally from SLAVE IDT7142 (which uses BUSY as input). The device supports CE-controlled power-down modes yielding ISB3 ≤ 1.0 mA (SA) or 0.2 mA (LA) under CMOS-level standby conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 8 bits (2048 words × 8-bit wide), enabling 16-bit+ bus expansion via MASTER/SLAVE topology |
| Max Read Cycle Time | 100 ns - defines minimum time between successive reads; impacts real-time system latency budget |
| BUSY Timing (tBAA) | ≤50 ns - critical for arbitration response; determines earliest point BUSY can assert after address valid |
| Supply Voltage | 5.0 V ±10% - requires stable 4.5–5.5 V rail; no internal regulation; incompatible with 3.3 V systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments; excludes commercial/military grades |
| Package | 48-pin flatpack (FP48) - hermetically sealed, 0.75″ × 0.75″ × 0.11″ body; lead-free option available |
| Power Dissipation (Active) | Typ. 325 mW - dictates thermal management in dense PCB layouts; SA variant only (not LA) |
Pinout & Package
48-pin flatpack (FP48) package with 0.050″ lead pitch; body dimensions ≈ 0.75 in × 0.75 in × 0.11 in; requires all VCC and GND pins to be connected per datasheet Note 1–2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Two dedicated ground pins required for noise immunity; must connect both to low-impedance plane |
| VCC (Pin 25) | Power supply | Single 5V supply input; decoupling capacitor mandatory within 0.5″ of pin |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down mode (ISB1–ISB4 states) |
| OEL / OER | Output enable (left/right) | Active-low enables I/O drivers; high-Z when disabled; independent of CE state |
| R/WL / R/WR | Read/write control (left/right) | Active-low write; high = read; determines direction of data flow on I/O bus |
| BUSYL / BUSYR | Arbitration status flag (output) | Open-drain outputs requiring 270 Ω pull-up; indicate port contention; used to stall writes |
| A0L–A10L / A0R–A10R | Address inputs (left/right) | 11-bit address buses; support 2K-word addressing per port; no internal latching |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | 8-bit parallel data paths; high-impedance when OE inactive or CE inactive |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous same-address access without external logic; guarantees one port wins based on tAPS (5 ns setup) |
| Open-drain BUSY outputs | Enable wired-OR expansion across multiple MASTER devices; require 270 Ω pull-up per BUSY line |
| Dual independent control domains | Left/right ports operate asynchronously with separate CE/OE/R/W - eliminates inter-port timing dependencies |
| CE-controlled power-down | Reduces active current to ≤1.0 mA (ISB3) when both CE inputs high; essential for low-duty-cycle systems |
| TTL-compatible interface | Accepts standard 5V logic levels (VIH ≥ 2.2 V, VIL ≤ 0.8 V); drives 4 mA loads; no level-shifting needed |
Applications
| Real-Time Motor Control | Digital Signal Processing Buffer |
|---|---|
|
Use Scenario: Simultaneous read of position feedback and write of PWM duty cycle in servo loop running at 20 kHz. IC Role / Device Role / Timing Role: MASTER 7132SA100CB provides deterministic arbitration between FPGA motion controller (right port) and DSP (left port) accessing shared coefficient tables. Use Value: 100 ns tRC and 50 ns tBAA ensure sub-microsecond contention resolution, eliminating software polling or lock-based synchronization overhead. |
Use Scenario: Overlapping FFT input capture and result readout in radar baseband processing. IC Role / Device Role / Timing Role: Dual-port RAM acts as ping-pong buffer; left port accepts ADC samples while right port streams processed bins to DAC interface. Use Value: Independent CE/OE/R/W control per port enables continuous streaming without dead cycles; 325 mW active power supports sustained throughput. |
| Industrial PLC I/O Mapping | Avionics Data Acquisition |
|
Use Scenario: Coordinating cyclic I/O scan (scan engine) and event-driven alarm logging (CPU) in safety-critical PLC. IC Role / Device Role / Timing Role: 7132SA100CB serves as shared memory between ARM Cortex-M7 scan task and RISC-V logging core. Use Value: BUSY arbitration prevents corrupted tag writes during concurrent access; FP48 package meets MIL-STD-810G vibration requirements. |
Use Scenario: High-integrity sensor fusion where ADC data and GPS timestamps must be time-aligned before processing. IC Role / Device Role / Timing Role: MASTER RAM buffers raw sensor streams; BUSY signals synchronize timestamp injection from separate timing module. Use Value: –40°C to +85°C rating ensures operation across flight envelope; open-drain BUSY supports fault-tolerant wired-OR interrupt signaling. |
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 CY7C1371DV33-100BGXI | 3.3 V supply, 100 MHz QDR interface, no built-in BUSY arbitration; requires external logic for contention handling | Targets high-bandwidth networking ASIC interfaces; lacks native industrial temp support (–40°C to +85°C) | Select when migrating to 3.3 V systems and adding custom arbitration; avoid if BUSY-driven stall is required. |
| IDT7142SA100CB | SLAVE-only counterpart; BUSY pins are inputs (not outputs); no arbitration logic; identical timing and pinout except BUSY function | Used only in width-expanded arrays with 7132SA100CB MASTER; cannot operate standalone as arbitration node | Required when building 16-bit+ memory width; must pair with 7132SA100CB; not a functional substitute. |
Compared with CY7C1371DV33-100BGXI and IDT7142SA100CB, the 7132SA100CB uniquely integrates hardware arbitration and open-drain BUSY signaling in a 5V industrial-grade package-enabling deterministic contention resolution without external components or voltage translation.
Availability
7132SA100CB is available at Aetrix Electronics and suitable for real-time motor control, digital signal processing buffer, and industrial PLC I/O mapping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 7132SA100CB 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 timing, memory interface, RF, and sensor solutions, now part of Renesas Electronics since 2019.
The IDT7132/7142 product line was designed for deterministic dual-port memory applications in industrial automation, avionics, and test equipment-where hardware-enforced arbitration eliminates software synchronization bottlenecks.
FAQ
What is the function of BUSYL and BUSYR on the 7132SA100CB?
BUSYL and BUSYR are open-drain arbitration status outputs on the 7132SA100CB. When asserted low, they indicate that the corresponding port (left or right) has detected simultaneous access to the same memory address by both ports. Each requires a 270 Ω pull-up resistor to 5V. These signals stall pending writes on the contended side, ensuring data integrity without software intervention. The 7132SA100CB is the only device in its family with BUSY outputs; IDT7142 uses them as inputs.
Can the 7132SA100CB operate at 3.3 V?
No, the 7132SA100CB requires a single 5.0 V ±10% supply (4.5–5.5 V) and is not rated for 3.3 V operation. Its input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and output drive strength are specified only for 5 V TTL compatibility. Attempting 3.3 V operation risks undefined logic states, excessive leakage, or permanent damage. For 3.3 V dual-port SRAM, consider Cypress CY7C1371DV33-100BGXI-but note it lacks integrated BUSY arbitration.
How does the 7132SA100CB differ from the IDT7142SA100CB?
The 7132SA100CB is a MASTER device with on-chip arbitration logic and open-drain BUSY outputs, while the IDT7142SA100CB is a SLAVE device with BUSY inputs and no arbitration circuitry. They share identical timing (100 ns), pinout, and memory size, but cannot be substituted: 7132SA100CB initiates arbitration and drives BUSY; IDT7142SA100CB responds to BUSY to inhibit writes. In width-expansion designs, exactly one 7132SA100CB must coordinate any number of IDT7142SA100CB slaves.
What package type is used for the 7132SA100CB?
The 7132SA100CB uses a 48-pin flatpack (FP48) package with dimensions approximately 0.75 in × 0.75 in × 0.11 in. This hermetic ceramic package provides superior thermal stability and moisture resistance compared to plastic DIP or PLCC variants, making it suitable for industrial and avionics applications. Pin 25 is VCC; pins 1 and 24 are GND; all VCC and GND connections must be made per datasheet requirements.
Does the 7132SA100CB support battery backup data retention?
No, the 7132SA100CB (SA suffix) does not support battery backup. Only LA-suffix variants (e.g., 7132LA100CB) provide 2 V data retention capability with typical ICCDR ≤ 100 µA. The SA version consumes higher active power (325 mW typ.) and lacks the low-voltage retention circuitry. If battery-backed operation is required, specify the LA variant and verify compatibility with your 2 V backup source and retention timing (tCDR guaranteed ≥ 0 ns).
7132SA100CB 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:
- 100ns
- Access Time:
- 100 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 48-SIDE BRAZED
7132SA100CB FAQ
1.How can I place an order for 7132SA100CB through Aetrix?
Please submit a Request for Quotation (RFQ) for 7132SA100CB 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 7132SA100CB reliable?
The price and inventory of 7132SA100CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7132SA100CB is usually 5 days.
3.What payment methods are accepted for 7132SA100CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7132SA100CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7132SA100CB?
7132SA100CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7132SA100CB 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 7132SA100CB?
For technical support, including 7132SA100CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7132SA100CB requirements.
6.How does Aetrix verify that 7132SA100CB is sourced from the original manufacturer or authorized distributors?
All 7132SA100CB 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 7132SA100CB meets industry standards.
7.What is the process for return or replacement of 7132SA100CB?
All 7132SA100CB units undergo pre-shipment inspection (PSI). If there is an issue with 7132SA100CB, 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 7132SA100CB part is unused and in its original packaging.
Return procedure for 7132SA100CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7132SA100CB Tags
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