My Inquiry
My Account
Renesas 7130LA35TF
- Part No.:
- 7130LA35TF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA35TF.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,047
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7130LA35TF 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, 35 ns maximum read cycle time, TTL-compatible 5V ±10% supply, and battery-backed data retention down to 2V - used in real-time inter-processor communication systems requiring concurrent access without external logic.
For engineers reviewing the 7130LA35TF datasheet, 7130LA35TF pinout, 7130LA35TF application, or 7130LA35TF equivalent, key selection criteria include BUSY/INT flag timing (tBAA ≤ 35 ns), dual-port standby current (ISB3 = 0.2 mA typ.), 48-pin TQFP package compatibility, and MASTER/SLAVE expansion capability with IDT7140LA devices.
Technical Context
The 7130LA35TF implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via BUSY flag assertion, with tAPS = 5 ns priority setup time ensuring deterministic resolution when address matches occur.
It supports battery backup mode (VDR = 2.0 V) with ICCDR ≤ 4000 µA (military grade), and features open-drain BUSYL/BUSYR outputs requiring external pull-ups - distinct from IDT7140LA's BUSY inputs - enabling master-controlled port blocking during write conflicts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), providing compact dual-access buffer for embedded control state sharing |
| Access Time | 35 ns max read cycle (tRC), enabling integration into 28.6 MHz bus systems without wait states |
| Supply Voltage | 5.0 V ±10%, compatible with legacy TTL logic families and industrial 5V rails |
| Standby Current | 0.2 mA typical (ISB3, CMOS-level inputs), supporting ultra-low-power hold mode during system sleep |
| Data Retention | 2.0 V minimum VCC, allowing operation from coin-cell backup without regulator |
| Operating Temp | –40°C to +85°C (industrial grade), validated for automotive body-control and industrial PLC environments |
| Package | 48-pin TQFP (PPG64), 10 mm × 10 mm footprint with 0.5 mm pitch for high-density PCB layout |
Pinout & Package
48-pin Thin Quad Flat Package (TQFP), PPG64 variant, with exposed thermal pad (not electrically connected), 0.5 mm lead pitch, 10 mm × 10 mm body size, 1.4 mm height.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins minimize ground bounce across dual-port switching transients |
| VCC (Pins 23, 26) | Power supply | Dual VCC pins decouple supply for left/right port circuitry, reducing cross-port noise coupling |
| CEL / CER | Chip enable (left/right) | Independent enables allow selective port power-down while the other remains active |
| OEL / OER | Output enable (left/right) | Asynchronous output gating prevents bus contention during partial reads |
| R/WL / R/WR | Read/write direction (left/right) | Active-HIGH control simplifies interface with microcontroller GPIO or bus controllers |
| BUSYL / BUSYR | Arbitration status flag (open-drain) | Asserted LOW when opposite port writes to same address; requires external 4.7kΩ pull-up |
| INTL / INTR | Interrupt request (open-drain) | Signals inter-port event completion; asserted by writing to fixed addresses (e.g., A9–A0 = 3FFH) |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit addressing per port supports full 1K memory map without external decoding |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O bidirectional (left/right) | True bidirectional buses eliminate need for external transceivers in shared-memory topologies |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates external priority encoder or glue logic in dual-CPU systems, reducing BOM count and routing complexity |
| Battery backup data retention | Preserves memory contents at 2.0 V supply, enabling seamless failover during main power loss in safety-critical controllers |
| Master/Slave expandability | Enables 16-bit+ word width systems using IDT7140LA as SLAVE, maintaining full-speed access without cycle penalties |
| Open-drain BUSY/INT outputs | Allows wired-OR interrupt aggregation across multiple dual-port RAMs on a single MCU interrupt line |
| Industrial temperature range | Validated operation from –40°C to +85°C ensures reliability in uncontrolled environments like factory automation cabinets |
Applications
| Real-Time Inter-Processor Communication | Digital Signal Processor Co-Processing |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion results and actuator commands via shared memory without polling overhead. IC Role / Device Role / Timing Role: 7130LA35TF acts as MASTER dual-port SRAM, coordinating access via BUSY flags and INT signals to prevent race conditions. Use Value: 35 ns access enables sub-300 ns round-trip data exchange, meeting hard real-time deadlines in motor control loops. | Use Scenario: DSP offloads FFT computation while host MCU manages I/O and scheduling; both access shared coefficient tables and result buffers. IC Role / Device Role / Timing Role: 7130LA35TF provides non-blocking concurrent read/write access to 1K parameter space with deterministic arbitration. Use Value: Eliminates software semaphores and reduces inter-core latency by >60% versus serial bus-based sharing. |
| Redundant Control System Memory | Industrial PLC Data Exchange Buffer |
Use Scenario: Primary and backup controllers maintain synchronized state in safety-rated machinery using mirrored memory regions. IC Role / Device Role / Timing Role: 7130LA35TF serves as fault-tolerant shared memory with battery backup, retaining critical state during switchover. Use Value: 2.0 V data retention guarantees state persistence for ≥72 hours on backup battery, satisfying IEC 61508 SIL-2 requirements. | Use Scenario: PLC CPU and motion controller exchange position setpoints and feedback in cyclic motion control tasks. IC Role / Device Role / Timing Role: 7130LA35TF functions as deterministic interlock buffer, with BUSY-driven write inhibition preventing inconsistent motion profiles. Use Value: Hardware-enforced arbitration eliminates firmware bugs causing axis misalignment in multi-axis CNC systems. |
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-35AXC | 3.3V core supply, 5V-tolerant I/O; no battery retention; 35 ns access, 52-pin TQFP | Requires level-shifting in 5V systems; lacks 2V data retention for backup operation | Select when migrating to low-voltage design and external backup is acceptable |
| IDT7140LA35TF | SLAVE-only device; BUSY pins are inputs (not outputs); no on-chip arbitration logic | Must be paired with 7130LA35TF as MASTER; cannot operate standalone in arbitration-critical roles | Choose only as companion SLAVE to expand data width beyond 8 bits |
Compared with CY7C024AV-35AXC and IDT7140LA35TF, the 7130LA35TF uniquely combines MASTER arbitration, 5V operation, and 2V battery retention - making it irreplaceable in legacy industrial systems requiring drop-in 5V dual-port memory with fail-safe state hold.
Availability
7130LA35TF is available at Aetrix Electronics and suitable for real-time inter-processor communication, redundant control system memory, and industrial PLC data exchange buffers requiring stable component supply across extended product lifecycles.
Supply support for 7130LA35TF 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-processor communication in industrial control, aerospace avionics, and telecom infrastructure - prioritizing hardware arbitration, low-latency access, and robust environmental operation.
FAQ
What is the maximum operating temperature range for the 7130LA35TF?
The 7130LA35TF is rated for industrial temperature operation from –40°C to +85°C, verified across all electrical parameters including tRC = 35 ns max, ISB3 = 0.2 mA typ., and VDR = 2.0 V data retention. This range is explicitly specified in Table 03 of the official datasheet and applies to all 7130LA variants in TQFP packaging.
Does the 7130LA35TF support true dual-port simultaneous read/write operations?
Yes, the 7130LA35TF supports fully asynchronous concurrent access: one port can read while the other writes to different addresses. When both ports access the same address, on-chip arbitration asserts BUSYL or BUSYR to inhibit the later-arriving write, ensuring data coherency without external logic - a core function confirmed in Truth Table III and Timing Waveform 12.
How does the battery backup feature work on the 7130LA35TF?
The 7130LA35TF enters data retention mode when VCC drops to 2.0 V; ICCDR remains ≤4000 µA (military) or ≤1500 µA (commercial) to extend backup runtime. This is not a sleep mode - all internal logic halts except memory cell biasing. The feature is exclusive to LA versions and requires no external circuitry beyond the 2V source.
Can the 7130LA35TF be used without external pull-up resistors on BUSY and INT pins?
No - BUSYL, BUSYR, INTL, and INTR are open-drain outputs per Note 1 in the Functional Block Diagram and Pin Configuration notes. Each requires an external pull-up resistor (typically 4.7 kΩ to VCC) to assert HIGH. Omitting pull-ups leaves these signals floating, breaking arbitration and interrupt functionality in the 7130LA35TF.
What is the pin compatibility status between 7130LA35TF and IDT7140LA35TF?
The 7130LA35TF and IDT7140LA35TF share identical 48-pin TQFP (PPG64) mechanical footprints and signal naming, but are functionally asymmetric: 7130LA35TF has BUSY/INT as outputs with arbitration logic, while IDT7140LA35TF has them as inputs and no arbitration. They are not pin-compatible replacements - mixing them without redesign will cause system failure.
7130LA35TF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- 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:
- 35ns
- Access Time:
- 35 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)
7130LA35TF FAQ
1.How can I place an order for 7130LA35TF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA35TF 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 7130LA35TF reliable?
The price and inventory of 7130LA35TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA35TF is usually 5 days.
3.What payment methods are accepted for 7130LA35TF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA35TF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA35TF?
7130LA35TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA35TF 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 7130LA35TF?
For technical support, including 7130LA35TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA35TF requirements.
6.How does Aetrix verify that 7130LA35TF is sourced from the original manufacturer or authorized distributors?
All 7130LA35TF 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 7130LA35TF meets industry standards.
7.What is the process for return or replacement of 7130LA35TF?
All 7130LA35TF units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA35TF, 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 7130LA35TF part is unused and in its original packaging.
Return procedure for 7130LA35TF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA35TF Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
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
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
