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Renesas 7130SA100CB
- Part No.:
- 7130SA100CB
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7130SA100CB.pdf
- Description:
- IC SRAM 8KBIT PARALLEL SB48
- Quantity:
- Payment:
- Shipping:
Inventory:3,771
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Product details
Overview
7130SA100CB from IDT (Integrated Device Technology) is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 100ns maximum read/write cycle time, open-drain BUSY outputs requiring external pull-up resistors, and TTL-compatible 5V ±10% operation - used in real-time inter-processor communication systems where concurrent left/right port access must avoid data collision.
For engineers reviewing the 7130SA100CB datasheet, 7130SA100CB pinout, 7130SA100CB application, or 7130SA100CB equivalent, key selection criteria include BUSY arbitration timing (tBDD ≤ 65ns), dual-port standby current (ISB1 = 20mA max), 48-pin ceramic flatpack package compatibility, and MASTER/SLAVE expansion capability with IDT7140 devices.
Technical Context
The 7130SA100CB implements fully asynchronous dual-port operation with independent address, control, and I/O buses for left and right ports. Its on-chip arbitration logic resolves contention via BUSY flag assertion when address matches occur, with tAPS = 5ns priority setup time ensuring deterministic port win resolution.
It supports R/W-controlled and CE-controlled write cycles, features open-drain BUSYL/BUSYR outputs (requiring external pull-ups), and provides INTL/INTR flags for port-to-port interrupt signaling - all operating within industrial temperature range (–40°C to +85°C) at 5.0V ±10% supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 bits (1024 words × 8-bit data width per port) |
| Max Read Cycle Time (tRC) | 100ns - defines minimum interval between successive reads on same port |
| Max Write Cycle Time (tWC) | 100ns - sets minimum duration for reliable write completion |
| Standby Current (ISB1) | 20mA max - power consumed when both ports are disabled (CE high) |
| Dynamic Operating Current (ICC) | 110mA typ - active power draw during concurrent port access at fMAX |
| Supply Voltage | 4.5V to 5.5V - TTL-compatible single-supply operation with ±10% tolerance |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems |
Pinout & Package
7130SA100CB is supplied in a 48-pin ceramic flatpack (FP48) package with 0.75″ × 0.75″ body size and side-brazed leads. Pin functions are electrically identical across FP48, LC48, and PDG48 variants per datasheet revision Jul.12.21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins reduce ground bounce and improve noise immunity in high-speed dual-port operation |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins ensure stable 5V distribution across die; both must be connected |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables memory access on respective port; controls ISB1/ISB2 standby modes |
| OEL / OER | Output Enable (Left/Right) | Active-low enables I/O drivers; high-Z state prevents bus contention during idle |
| R/WL / R/WR | Read/Write Control (Left/Right) | High = read, low = write; determines direction of data flow on I/O lines |
| BUSYL / BUSYR | Arbitration Flag Output (Left/Right) | Open-drain outputs asserting low during address contention; require external pull-up resistors |
| INTL / INTR | Interrupt Flag (Left/Right) | Open-drain signals indicating port-initiated interrupt events (e.g., address 3FE/3FF writes) |
| A0L–A9L / A0R–A9R | Address Inputs (Left/Right) | 10-bit address buses selecting one of 1024 memory locations 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 address without external logic; uses tAPS = 5ns setup to guarantee deterministic port priority |
| Open-drain BUSY outputs | Enable wired-OR arbitration signaling across multiple dual-port RAMs; require 4.7kΩ pull-up to VCC per datasheet recommendation |
| Port-to-port interrupt capability | INTL/INTR flags support software-triggered inter-processor messaging using dedicated addresses (3FEH/3FFH) |
| Asynchronous dual-port operation | Independent timing on left/right ports eliminates synchronization overhead; no clock required |
| Industrial temperature qualification | Guaranteed functionality from –40°C to +85°C supports deployment in factory automation and transportation control systems |
Applications
| Real-Time Motion Controller | Digital Signal Processor Interface |
|---|---|
Use Scenario: Coordinating servo motor position updates between FPGA motion sequencer and microcontroller host. IC Role / Device Role / Timing Role: MASTER 7130SA100CB acts as shared memory buffer with BUSY arbitration preventing write collisions during simultaneous access. Use Value: Enables deterministic 100ns-latency data exchange without CPU polling or external arbitration logic. | Use Scenario: Streaming sensor data from ADC interface to DSP core while firmware performs background analysis. IC Role / Device Role / Timing Role: Dual-port SRAM serves as zero-wait-state data pipeline; left port handles ADC DMA, right port serves DSP read requests. Use Value: Eliminates FIFO bottlenecks and guarantees atomic 8-bit word transfers at full system clock rate. |
| Redundant Communication Gateway | Avionics Data Concentrator |
Use Scenario: Maintaining synchronized configuration tables between primary and backup flight management units. IC Role / Device Role / Timing Role: 7130SA100CB provides fault-tolerant shared memory with INT-driven update notifications. Use Value: Ensures sub-100ns consistency window and automatic failover readiness without software intervention. | Use Scenario: Aggregating ARINC 429 bus data from multiple line-replaceable units into central health monitoring unit. IC Role / Device Role / Timing Role: Acts as time-critical scratchpad memory with separate ports for input capture and output formatting engines. Use Value: Supports concurrent 100ns-cycle data ingestion and packet assembly 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 |
|---|---|---|---|
| CY7C131-100AXC | 1K × 8, 100ns, 5V, but lacks on-chip arbitration logic and BUSY/INT flags | Requires external glue logic for contention resolution; not drop-in for MASTER role | Select only if arbitration handled by FPGA or processor; verify external pull-up requirements match |
| IDT7140SA100CB | SLAVE-only variant: BUSY inputs instead of outputs; no arbitration logic; identical timing and pinout | Used only in MASTER/SLAVE pairs to expand data width; cannot operate standalone as memory controller | Choose when building 16-bit+ systems with 7130SA100CB as MASTER; shares same footprint and timing |
Compared with CY7C131-100AXC and IDT7140SA100CB, the 7130SA100CB uniquely integrates arbitration and interrupt signaling - enabling simpler, lower-latency inter-processor designs without external logic, while IDT7140SA100CB serves strictly as a companion SLAVE in width-expansion configurations.
Availability
7130SA100CB is available at Aetrix Electronics and suitable for real-time motion control, avionics data concentration, and redundant communication gateway applications requiring stable component supply across extended product lifecycles.
Supply support for 7130SA100CB 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 semiconductor company specializing in timing, memory interface, RF, and sensor solutions, now part of Renesas Electronics since 2019.
The IDT7130/7140 family was designed specifically for deterministic inter-processor communication in industrial, military, and aerospace systems requiring concurrent, collision-free dual-port memory access.
FAQ
What is the function of BUSYL and BUSYR on the 7130SA100CB?
BUSYL and BUSYR are open-drain arbitration flag outputs on the 7130SA100CB. When asserted low, they indicate address contention on the respective port - blocking writes until the competing port completes its access. Per datasheet note 1, these outputs require external pull-up resistors to VCC and are exclusive to the MASTER 7130 device; the SLAVE IDT7140 uses them as inputs instead.
Can the 7130SA100CB operate with a 3.3V supply?
No, the 7130SA100CB is specified only for 5.0V ±10% operation (4.5V to 5.5V). Its input thresholds (VIH = 2.2V min, VIL = 0.8V max) and internal circuitry are TTL-compatible and not rated for 3.3V logic levels. Using 3.3V violates the Recommended DC Operating Conditions table and risks unreliable operation or damage.
How does the 7130SA100CB handle simultaneous writes to the same memory location?
The 7130SA100CB uses on-chip arbitration logic to resolve simultaneous writes. When address match occurs, tAPS = 5ns priority setup time determines which port wins; the losing port's BUSY signal goes low, inhibiting its write. The winning port completes the write, and BUSY deasserts after tBDD ≤ 65ns (for 100ns version), ensuring deterministic, hardware-enforced collision avoidance without software intervention.
What is the purpose of the INTL and INTR pins on the 7130SA100CB?
INTL and INTR are open-drain interrupt flag outputs on the 7130SA100CB. Writing to specific addresses (e.g., 3FEH on left port sets INTL, 3FFH on right port sets INTR) asserts the corresponding flag, signaling inter-processor events. These pins enable hardware-triggered notification between systems sharing the dual-port RAM, eliminating polling overhead and supporting low-latency event-driven architectures.
Is the 7130SA100CB pin-compatible with the IDT7140SA100CB?
Yes, the 7130SA100CB and IDT7140SA100CB share identical 48-pin FP48/LC48/PDG48 pinouts and AC/DC specifications, but differ functionally: 7130SA100CB is MASTER (BUSY outputs, arbitration logic), while IDT7140SA100CB is SLAVE (BUSY inputs, no arbitration). They are designed for direct pairing in 16-bit+ systems, not as drop-in replacements for standalone use.
7130SA100CB 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:
- 8Kbit
- Memory Organization:
- 1K 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
7130SA100CB FAQ
1.How can I place an order for 7130SA100CB through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA100CB 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 7130SA100CB reliable?
The price and inventory of 7130SA100CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA100CB is usually 5 days.
3.What payment methods are accepted for 7130SA100CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA100CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA100CB?
7130SA100CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA100CB 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 7130SA100CB?
For technical support, including 7130SA100CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA100CB requirements.
6.How does Aetrix verify that 7130SA100CB is sourced from the original manufacturer or authorized distributors?
All 7130SA100CB 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 7130SA100CB meets industry standards.
7.What is the process for return or replacement of 7130SA100CB?
All 7130SA100CB units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA100CB, 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 7130SA100CB part is unused and in its original packaging.
Return procedure for 7130SA100CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA100CB Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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