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Renesas 7130SA25PF8
- Part No.:
- 7130SA25PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA25PF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
7130SA25PF8 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, 25ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130SA25PF8 datasheet, 7130SA25PF8 pinout, 7130SA25PF8 application, or 7130SA25PF8 equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, dual-port power-down modes, and package-specific DC/AC electrical characteristics - all confirmed for the PF8 (48-pin ceramic flatpack) variant.
Technical Context
The 7130SA25PF8 implements fully asynchronous dual-port operation: left and right ports each have independent address (A0L–A9L / A0R–A9R), data (I/O0L–I/O7L / I/O0R–I/O7R), and control lines (CEL/OEL/R/WL and CER/OER/R/WR). Its on-chip arbitration logic resolves contention via BUSYL/BUSYR open-drain outputs (requiring external pull-ups) and supports priority-based write inhibition when address matches occur.
It features port-to-port interrupt signaling (INTL/INTR), battery-backed data retention only in LA variants (not applicable here), and four standby current modes (ISB1–ISB4) controlled by CE-level thresholds and input voltage states. The PF8 package uses ceramic flatpack construction with 0.75" × 0.75" footprint and 0.11" height.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual-port SRAM with separate left/right address/data/control buses |
| Access Time (tAA) | 25 ns max - defines minimum time from valid address to stable output data on either port |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; all VCC pins must be connected to 4.5–5.5 V |
| Operating Temperature | –40°C to +85°C - industrial grade; validated across full range for timing and leakage specs |
| Dynamic Current (ICC) | 110 mA typ. - measured at fMAX with both ports active and outputs disabled |
| Standby Current (ISB1) | 25 mA max - both ports disabled (CEL = CER = VIH), TTL-level inputs, f = fMAX |
| BUSY Output Type | Open-drain - requires external pull-up resistor; used for port arbitration and write blocking |
Pinout & Package
7130SA25PF8 is supplied in a 48-pin ceramic flatpack (FP48) package with 0.75" × 0.75" body size and 0.11" height. Pin 1 index corner is marked with a dot or bevel; all VCC pins require connection to 5V supply, and all GND pins must be tied to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground connections ensure low-impedance return paths for both ports and reduce switching noise coupling |
| VCC (Pins 23, 26) | Power supply | Two 5V supply pins - must be decoupled locally with 0.1 µF ceramic capacitors near each pin |
| CEL, CER | Chip enable (left/right) | Active-low enables; when high, corresponding port enters standby mode (ISB1/ISB2) |
| OEL, OER | Output enable (left/right) | Active-low controls I/O bus direction; when high, I/O pins enter high-impedance state |
| R/WL, R/WR | Read/write control (left/right) | High = read, low = write; determines data flow direction on respective I/O bus |
| BUSYL, BUSYR | Arbitration flag (left/right) | Open-drain outputs - drive low during address contention to block writes on opposing port |
| INTL, INTR | Interrupt flag (left/right) | Open-drain outputs - set/cleared via dedicated 3FFh/3FEh address writes for inter-port signaling |
| A0L–A9L, A0R–A9R | Address inputs (left/right) | 10-bit address buses - support full 1K addressing per port; no internal latching |
| I/O0L–I/O7L, I/O0R–I/O7R | Data I/O (left/right) | Bidirectional 8-bit data buses - driven actively during reads, tri-stated during writes or disables |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous access to same memory location without external logic; uses BUSY flags and tAPS setup timing |
| Dual independent asynchronous ports | Enables concurrent read/write operations - e.g., CPU writes via left port while DSP reads via right port - with no cycle penalties |
| Master-only BUSY output capability | 7130SA25PF8 asserts BUSYL/BUSYR as outputs (vs. IDT7140 SLAVE which accepts them as inputs), enabling standalone arbitration |
| Four selectable standby modes | ISB1–ISB4 provide graded power savings (25 mA → 0.2 mA) based on CE level and input voltage thresholds |
| Port-to-port interrupt signaling | INTL/INTR flags support software-triggered event notification between processors sharing memory - no polling required |
Applications
| Real-Time Motor Control | Digital Signal Processor Co-Processing |
|---|---|
Use Scenario: Dual-core system where ARM Cortex-M4 handles motion planning and TI C2000 DSP executes PWM generation and current loop control. IC Role / Device Role / Timing Role: 7130SA25PF8 serves as shared instruction/data buffer with deterministic 25ns access, enabling zero-latency handoff of position commands and feedback samples. Use Value: Eliminates FIFO buffering and synchronization overhead; BUSY arbitration prevents corrupted updates during simultaneous access to trajectory tables. |
Use Scenario: Audio codec interfacing where FPGA configures parameters and DSP performs real-time filtering on streaming PCM data. IC Role / Device Role / Timing Role: Acts as ping-pong buffer - FPGA writes next frame parameters to left port while DSP reads current frame coefficients from right port. Use Value: Sustains 192 kHz/24-bit audio throughput without pipeline stalls; INTL/INTR flags signal buffer swap completion with sub-25ns latency. |
| Industrial PLC I/O Mapping | Avionics Sensor Fusion Hub |
Use Scenario: Modular PLC backplane with multiple I/O modules writing sensor status to shared memory while main controller reads consolidated diagnostics. IC Role / Device Role / Timing Role: Provides non-blocking access for up to 8 I/O modules (via daisy-chained SLAVEs) coordinated by 7130SA25PF8 MASTER arbitration. Use Value: Guarantees atomic updates to critical fault registers; BUSY-driven write inhibition prevents partial writes during controller read cycles. |
Use Scenario: Flight control computer integrating GPS, IMU, and air data inputs - each sensor driver writes raw data to dedicated memory regions. IC Role / Device Role / Timing Role: Serves as time-aligned data staging area where AHRS algorithm reads synchronized samples from left port while GNSS module writes timestamps to right port. Use Value: Enables sub-microsecond timestamp correlation across sensors; tBDD < 35 ns ensures valid fused output within 100 µs of last input arrival. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-25AXC | 25 ns access, 1K × 16 organization, 3.3V core (5V-tolerant I/O), no built-in arbitration logic | Requires external glue logic for BUSY arbitration; better suited for wider data paths without MASTER/SLAVE expansion | Select when 16-bit native width is preferred and board space allows discrete arbitration circuitry |
| IDT7140SA25PF8 | Same 25 ns speed, identical FP48 package, but SLAVE-only - BUSYL/BUSYR are inputs, no on-chip arbitration | Must be paired with 7130SA25PF8 MASTER; cannot operate standalone in arbitration-critical roles | Choose only as companion SLAVE in 16-bit+ memory expansions; not a functional substitute for 7130SA25PF8 |
Compared with CY7C024AV-25AXC and IDT7140SA25PF8, the 7130SA25PF8 uniquely integrates arbitration logic and MASTER functionality in a 1K × 8 configuration - eliminating external logic for contention resolution while maintaining pin compatibility with SLAVE devices for scalable memory width.
Availability
7130SA25PF8 is available at Aetrix Electronics and suitable for real-time motor control, digital signal processor co-processing, industrial PLC I/O mapping, and avionics sensor fusion applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 7130SA25PF8 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 signal processing solutions, now part of Renesas Electronics.
The IDT7130/7140 family was designed specifically for deterministic dual-processor memory sharing in industrial automation, aerospace, and test equipment - prioritizing arbitration integrity, low-latency access, and robustness across extended temperature ranges.
FAQ
What is the function of BUSYL and BUSYR on the 7130SA25PF8?
BUSYL and BUSYR are open-drain arbitration outputs on the 7130SA25PF8. When asserted low, they block write operations on the opposing port during address contention. Each requires an external pull-up resistor (typically 4.7 kΩ to VCC) to ensure proper HIGH state when inactive. This behavior is exclusive to the MASTER 7130SA25PF8 - SLAVE devices like IDT7140 accept BUSY as inputs only.
Can the 7130SA25PF8 operate with a 3.3V supply?
No, the 7130SA25PF8 requires a 5.0 V ±10% supply (4.5 V to 5.5 V) and is not 3.3V-compatible. Its input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and internal circuitry are designed for TTL-level signaling. Using 3.3V risks undefined operation, excessive ISB current, and failure to meet 25ns timing specifications.
How does port-to-port interrupt work on the 7130SA25PF8?
The 7130SA25PF8 supports hardware interrupts via INTL and INTR open-drain outputs. Writing to address 3FFh sets the opposite port's interrupt flag (e.g., left-port write to 3FFh asserts INTR); writing to 3FEh clears it. These flags remain latched until explicitly reset, enabling reliable event signaling between processors without polling overhead or shared register conflicts.
What is the difference between ISB1 and ISB3 standby current modes on the 7130SA25PF8?
ISB1 (25 mA max) activates when both CE pins are high (VIH) with TTL-level inputs - suitable for quick wake-up. ISB3 (0.2 mA typ.) engages when both CE pins exceed VCC – 0.2 V and all inputs are driven to rail (VCC or GND), achieving ultra-low power. ISB3 requires CMOS-level input drivers and yields >100× reduction in quiescent current versus ISB1.
Is the 7130SA25PF8 pin-compatible with the IDT7140SA25PF8?
Yes, the 7130SA25PF8 and IDT7140SA25PF8 share identical 48-pin FP48 packaging and pinout - including matching I/O, address, control, and power pin locations. However, their functional roles differ: 7130SA25PF8 is MASTER (BUSY outputs, arbitration logic), while IDT7140SA25PF8 is SLAVE (BUSY inputs, no arbitration). They are mechanically compatible but not functionally interchangeable.
7130SA25PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- 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:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7130SA25PF8 FAQ
1.How can I place an order for 7130SA25PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA25PF8 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 7130SA25PF8 reliable?
The price and inventory of 7130SA25PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA25PF8 is usually 5 days.
3.What payment methods are accepted for 7130SA25PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA25PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA25PF8?
7130SA25PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA25PF8 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 7130SA25PF8?
For technical support, including 7130SA25PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA25PF8 requirements.
6.How does Aetrix verify that 7130SA25PF8 is sourced from the original manufacturer or authorized distributors?
All 7130SA25PF8 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 7130SA25PF8 meets industry standards.
7.What is the process for return or replacement of 7130SA25PF8?
All 7130SA25PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA25PF8, 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 7130SA25PF8 part is unused and in its original packaging.
Return procedure for 7130SA25PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA25PF8 Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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