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Renesas 7130LA25TF8
- Part No.:
- 7130LA25TF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA25TF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,446
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Product details
Overview
7130LA25TF8 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, 25 ns maximum access time, industrial temperature range (–40°C to +85°C), and battery-backed data retention down to 2.0 V. It enables concurrent read/write access from independent left/right ports in real-time inter-processor communication systems.
For engineers reviewing the 7130LA25TF8 datasheet, 7130LA25TF8 pinout, 7130LA25TF8 application, or 7130LA25TF8 equivalent, this page delivers verified electrical timing (tRC = 25 ns, tAA = 25 ns), low-power standby current (ISB3 = 0.2 mA typ.), BUSY/INT arbitration behavior, and TQFP-64 package compatibility for embedded control and military-grade data coherency designs.
Technical Context
The 7130LA25TF8 implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention via BUSY flag assertion when both ports access the same memory location, requiring tAPS ≥ 5 ns setup to guarantee deterministic priority.
As a MASTER device, it features open-drain BUSYL/BUSYR outputs (requiring external pull-ups) and INTL/INTR flags for port-to-port interrupt signaling. The LA variant supports 2 V data retention with ISB3 = 0.2 mA typical at full CMOS-level standby - enabled by internal power gating controlled by CE and CER inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), supporting independent left/right port access without external logic |
| Access Time | 25 ns max (tAA, tACE, tAOE), enabling 40 MHz sustained throughput in synchronous bus interfaces |
| Data Retention Voltage | 2.0 V min (LA-only), allowing backup from coin-cell or supercapacitor during main supply loss |
| Standby Current | 0.2 mA typical (ISB3, CMOS-level inputs), reducing system power in sleep modes without data loss |
| Operating Temperature | –40°C to +85°C (industrial grade), qualified for automotive engine control and industrial PLC environments |
| Supply Voltage | 4.5 V to 5.5 V (VCC), TTL-compatible with standard 5 V logic families and noise margin ≥ 0.4 V |
| Package | 64-pin TQFP (PNG64), 14 mm × 14 mm footprint with 0.5 mm pitch, suitable for automated SMT assembly |
Pinout & Package
64-pin Thin Quad Flat Package (TQFP), body size 14 mm × 14 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 33, 49) | Ground reference | Two dedicated ground pins reduce ground bounce and improve signal integrity across both ports |
| VCC (Pins 32, 48) | Power supply | Dual VCC pins ensure stable 5 V distribution to core logic and I/O drivers independently |
| CEL / CER | Chip enable (left/right) | Active-low enables per port; controls dynamic current (ICC) and entry into ISB1–ISB4 standby states |
| R/WL / R/WR | Read/write direction (left/right) | High = read, low = write; determines data flow direction on bidirectional I/O lines |
| OEL / OER | Output enable (left/right) | Active-low enables output drivers; when high, I/O pins enter high-impedance state for bus sharing |
| BUSYL / BUSYR | Arbitration status (open-drain) | Low indicates port contention; requires external 4.7 kΩ pull-up to VCC for proper logic level translation |
| INTL / INTR | Interrupt flag (open-drain) | Signals completion of cross-port operations (e.g., write to 3FFH sets INTR); needs pull-up resistor |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses support full 1K address space per port; no internal address latching |
| I/O0L–I/O7L / I/O0R–I/O7R | Bidirectional data (left/right) | 8-bit parallel data paths; drivers automatically tri-state when OE or CE inactive |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to identical addresses without external glue logic, using tAPS ≥ 5 ns priority setup |
| Open-drain BUSY/INT outputs | Enables wired-OR interrupt and arbitration signaling across multiple dual-port devices on shared buses |
| 2 V data retention (LA version) | Maintains memory contents during brown-out or main supply interruption, critical for fault-tolerant systems |
| Four standby current modes | ISB1–ISB4 offer scalable power savings: 0.2 mA (full CMOS standby) to 65 mA (TTL-level one-port active) |
| Master/Slave expandability | 7130LA25TF8 acts as MASTER; pairs with IDT7140LA25TF8 to build 16-bit+ word-width memory without speed penalty |
Applications
| Real-Time Inter-Processor Communication | Redundant Control Systems |
|---|---|
Use Scenario: Two microcontrollers exchange sensor data and command status in an avionics flight control unit with strict determinism requirements. IC Role / Device Role / Timing Role: 7130LA25TF8 serves as shared memory buffer with hardware-enforced atomic access via BUSY arbitration. Use Value: Eliminates software semaphores and polling delays; guarantees sub-25 ns response to port contention events. | Use Scenario: Dual-channel motor controller where primary and backup processors maintain synchronized state tables. IC Role / Device Role / Timing Role: 7130LA25TF8 stores mirrored control registers accessible by both channels with automatic conflict resolution. Use Value: Enables seamless failover within 100 ns of primary channel failure, preserving position and torque continuity. |
| Industrial PLC Data Exchange | Military Radios with Secure Boot |
Use Scenario: Programmable logic controller uses separate CPU cores for I/O scanning and motion control, sharing real-time axis parameters. IC Role / Device Role / Timing Role: 7130LA25TF8 provides non-blocking dual-port access to motion profile buffers and encoder feedback registers. Use Value: Sustains 40 kHz servo update rate with zero-cycle jitter from arbitration overhead. | Use Scenario: Secure radio firmware validates cryptographic keys before booting; keys must persist through power cycles and voltage dips. IC Role / Device Role / Timing Role: 7130LA25TF8 stores encrypted key material with 2 V retention capability during battery backup mode. Use Value: Guarantees key integrity during 100 ms brown-out events without external supervisor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C130-25JC | 48-pin PLCC; no built-in arbitration; requires external logic for BUSY generation | Lacks native port-to-port interrupt (INT) and arbitration flags; higher BOM count | Choose only if legacy PLCC layout exists and arbitration logic is already implemented externally |
| IDT7140LA25TF8 | SLAVE-only device; BUSY inputs instead of outputs; no arbitration logic | Must be paired with 7130LA25TF8 as MASTER; cannot operate standalone | Select when expanding 8-bit to 16-bit data path while maintaining 25 ns timing and LA retention |
Compared with CY7C130-25JC and IDT7140LA25TF8, the 7130LA25TF8 uniquely integrates arbitration, interrupt, and 2 V retention in a single TQFP-64 package - eliminating discrete logic, reducing PCB area by 32%, and enabling true drop-in replacement in new industrial and defense designs requiring deterministic dual-port behavior.
Availability
7130LA25TF8 is available at Aetrix Electronics and suitable for real-time inter-processor communication, redundant control systems, and industrial PLC data exchange requiring stable component supply across extended product lifecycles.
Supply support for 7130LA25TF8 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 high-performance memory, timing, and interface solutions, now part of Renesas Electronics since 2019.
The IDT7130/7140 family was designed specifically for deterministic dual-port memory applications in aerospace, defense, and industrial automation where concurrent access, hardware arbitration, and data retention under brown-out conditions are mandatory.
FAQ
What is the guaranteed maximum access time for the 7130LA25TF8?
The 7130LA25TF8 has a guaranteed maximum access time of 25 ns for tAA (address access), tACE (chip enable access), and tAOE (output enable access) over the full industrial temperature range (–40°C to +85°C) and supply voltage (4.5 V to 5.5 V). This ensures reliable 40 MHz operation in synchronous bus environments without wait states.
Does the 7130LA25TF8 support battery backup operation, and what is the minimum retention voltage?
Yes, the 7130LA25TF8 supports battery backup operation with guaranteed data retention down to 2.0 V (VDR), as specified in Table 7 of the datasheet. At VCC = 2.0 V and TA = +25°C, ICCDR remains ≤ 4000 µA (military/industrial) or ≤ 1500 µA (commercial), enabling long-term retention from small Li-MnO₂ cells.
How does the BUSY arbitration logic function on the 7130LA25TF8, and what timing constraint must be met?
The 7130LA25TF8 asserts BUSYL or BUSYR low when both ports attempt to access the same address. To guarantee deterministic priority, the arbitration priority setup time tAPS must be ≥ 5 ns - meaning the winning port's address and control signals must stabilize at least 5 ns before the losing port's corresponding signals. Failure risks indeterminate BUSY assertion.
Can the 7130LA25TF8 be used as a standalone dual-port RAM, or does it require a companion SLAVE device?
The 7130LA25TF8 functions fully as a standalone 8-bit dual-port SRAM with integrated arbitration and interrupt logic. It does not require a companion SLAVE device. However, it can also serve as MASTER in a MASTER/SLAVE configuration with IDT7140LA25TF8 to construct wider (e.g., 16-bit) memory systems without performance degradation.
What are the key differences between the SA and LA versions of the 7130 series, and why choose the LA variant?
The LA variant of the 7130 series offers significantly lower standby current (ISB3 = 0.2 mA typ. vs. 1.0 mA typ. for SA) and 2 V data retention capability - features absent in the SA version. Choose 7130LA25TF8 when designing for battery-backed systems, energy-constrained edge nodes, or applications requiring guaranteed data persistence during power interruptions.
7130LA25TF8 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 (10x10)
7130LA25TF8 FAQ
1.How can I place an order for 7130LA25TF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA25TF8 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 7130LA25TF8 reliable?
The price and inventory of 7130LA25TF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA25TF8 is usually 5 days.
3.What payment methods are accepted for 7130LA25TF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA25TF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA25TF8?
7130LA25TF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA25TF8 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 7130LA25TF8?
For technical support, including 7130LA25TF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA25TF8 requirements.
6.How does Aetrix verify that 7130LA25TF8 is sourced from the original manufacturer or authorized distributors?
All 7130LA25TF8 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 7130LA25TF8 meets industry standards.
7.What is the process for return or replacement of 7130LA25TF8?
All 7130LA25TF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA25TF8, 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 7130LA25TF8 part is unused and in its original packaging.
Return procedure for 7130LA25TF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA25TF8 Tags
-
M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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