My Inquiry
My Account
Renesas 7130LA35TF8
- Part No.:
- 7130LA35TF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130LA35TF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,527
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7130LA35TF8 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 access time, 1 mA typical standby current (LA version), and battery-backed data retention down to 2 V. It enables simultaneous independent read/write access from left and right ports in real-time interprocessor communication systems.
For engineers reviewing the 7130LA35TF8 datasheet, 7130LA35TF8 pinout, 7130LA35TF8 application, or 7130LA35TF8 equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, dual-supply compatibility, and industrial-temperature (-40°C to +85°C) performance for embedded control and military-grade systems.
Technical Context
The 7130LA35TF8 implements fully asynchronous dual-port architecture with separate address, data, and control lines per port (A0L–A9L/I/O0L–I/O7L/CEL/OEL/R/WL/BUSYL/INTL and A0R–A9R/I/O0R–I/O7R/CER/OER/R/WR/BUSYR/INTR). Its on-chip arbitration logic resolves contention when both ports access the same memory location, asserting BUSY outputs to stall the later-arriving write.
As a MASTER-only device, it features open-drain BUSY outputs requiring external pull-up resistors, supports INT flag generation for port-to-port signaling, and provides battery backup data retention at 2 V - a capability exclusive to LA variants and confirmed in Table 07 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 (1024 words × 8 bits), dual-port SRAM with independent left/right access paths |
| Access Time (max) | 35 ns - guarantees full-speed operation in 28 MHz bus systems with no wait states |
| Standby Current (typ) | 1 mA - enables ultra-low-power hold mode during system sleep or battery backup |
| Data Retention Voltage | 2.0 V - maintains stored data during main power loss using backup battery supply |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments without derating |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard TTL/CMOS 5 V rails and tolerant of ±10% variation |
| Arbitration Logic | On-chip port-to-port arbitration - eliminates need for external logic when expanding to 16-bit+ data buses |
Pinout & Package
7130LA35TF8 is supplied in a 64-pin STQFP (Small Thin Quad Flat Package) with 0.5 mm pitch and 10 mm × 10 mm body size (PPG64 package code).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus selecting one of 1024 locations for left-side access |
| A0R–A9R | Right port address inputs | Independent 10-bit address bus for concurrent right-side memory access |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; direction controlled by R/WL and OEL signals |
| I/O0R–I/O7R | Right port bidirectional data | 8-bit data path; direction controlled by R/WR and OER signals |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in low-power standby |
| OEL / OER | Output enable (left/right) | Active-low controls output drivers; high-Z when disabled |
| R/WL / R/WR | Read/write control (left/right) | High = read, low = write; determines I/O direction and internal memory action |
| BUSYL / BUSYR | Busy flag (open-drain outputs) | Indicate port contention; require external pull-up; stall writes when asserted low |
| INTL / INTR | Interrupt flag (open-drain outputs) | Signal inter-port events (e.g., flag set/reset); require external pull-up |
| VCC / GND | Power and ground | Multiple VCC (pins 32, 33, 47, 48, 63, 64) and GND (pins 17, 18, 25, 26, 30, 31) pins ensure low-noise, low-impedance supply distribution |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access conflicts without external logic, enabling deterministic MASTER/SLAVE expansion |
| Battery backup data retention | Maintains valid data at 2 V supply - critical for fail-safe logging and configuration storage |
| Open-drain BUSY/INT outputs | Support wired-OR interrupt and busy chaining across multiple dual-port devices |
| Independent port power-down | Each port can be placed in standby (ISB2/ISB4 modes) while the other remains active |
| TTL-compatible 5 V interface | Direct connection to legacy microcontrollers and FPGAs without level-shifting circuitry |
Applications
| Real-Time Interprocessor Communication | Digital Signal Processing Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange sensor data and control commands via shared memory without software handshaking. IC Role / Device Role / Timing Role: 7130LA35TF8 acts as MASTER dual-port SRAM with BUSY arbitration, enabling lock-free, cycle-accurate data transfer between asymmetric processors. Use Value: Eliminates polling delays and race conditions; 35 ns access ensures sub-microsecond inter-core latency. | Use Scenario: An FPGA-based DSP engine streams audio samples to a fixed-function codec IC using ping-pong buffering. IC Role / Device Role / Timing Role: 7130LA35TF8 provides synchronized, non-blocking read/write ports - one for FPGA write, one for codec read - with hardware arbitration. Use Value: Prevents buffer underrun/overrun; battery retention preserves last valid frame during power interruption. |
| Industrial PLC Memory Expansion | Military Avionics Data Logging |
Use Scenario: A programmable logic controller expands its I/O mapping table using dual-port RAM accessible by both CPU and fieldbus interface ASIC. IC Role / Device Role / Timing Role: 7130LA35TF8 serves as MASTER memory hub with INT flags signaling register updates between domains. Use Value: Enables deterministic scan-cycle execution; -40°C to +85°C rating ensures reliability in uncontrolled cabinet environments. | Use Scenario: Flight data recorder captures telemetry during power loss using backup battery and retained memory state. IC Role / Device Role / Timing Role: 7130LA35TF8 operates as fault-tolerant data buffer with 2 V data retention and MIL-PRF-38535 QML-compliant construction. Use Value: Guarantees integrity of last 1 KB of flight-critical parameters after main power failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C131-35JC | 35 ns access, 5 V, 1K × 8, but no on-chip arbitration logic; BUSY must be implemented externally | Lacks integrated port arbitration and INT flag generation - requires additional logic for MASTER/SLAVE coordination | Select when cost sensitivity outweighs arbitration convenience and board space permits discrete logic |
| AS7C31025B-35TIN | 35 ns access, 3.3 V only, no battery retention, no BUSY/INT pins - pure dual-port SRAM without arbitration | Requires level shifters for 5 V systems; unsuitable for battery backup or real-time contention resolution | Choose only for 3.3 V designs where arbitration is handled in firmware or external FPGA logic |
Compared with CY7C131-35JC and AS7C31025B-35TIN, the 7130LA35TF8 uniquely integrates arbitration, interrupt signaling, and 2 V data retention - making it irreplaceable in deterministic, fail-safe, multi-processor embedded systems requiring hardware-enforced memory coherency.
Availability
7130LA35TF8 is available at Aetrix Electronics and suitable for real-time interprocessor communication, industrial PLC memory expansion, and military avionics data logging requiring stable component supply across extended product lifecycles.
Supply support for 7130LA35TF8 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 high-performance computing solutions, now part of Renesas Electronics.
The 7130LA35TF8 belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic, low-latency, multi-processor memory sharing in industrial, military, and telecom infrastructure.
FAQ
What is the guaranteed maximum access time for the 7130LA35TF8?
The 7130LA35TF8 has a guaranteed maximum access time of 35 ns across the full industrial temperature range (-40°C to +85°C) and supply voltage (4.5 V to 5.5 V), as specified in Table 09a of the official datasheet. This parameter applies to tAA, tACE, and tAOE under standard AC test conditions with 30 pF load.
Does the 7130LA35TF8 support battery backup operation, and what voltage is required?
Yes, the 7130LA35TF8 supports battery backup data retention at 2.0 V minimum, a feature exclusive to LA-series variants. Per Table 07, VDR is guaranteed at 2.0 V, and ICCDR remains ≤4000 µA (military/industrial) or ≤1500 µA (commercial) during retention mode.
How does the BUSY arbitration logic function in the 7130LA35TF8?
The 7130LA35TF8 uses on-chip arbitration to detect simultaneous access to the same address. When contention occurs, it asserts BUSYL or BUSYR (open-drain) to stall the later-arriving write. The tAPS parameter (5 ns minimum) defines the setup time required to guarantee correct priority assignment between ports.
Can the 7130LA35TF8 operate as a SLAVE device in a MASTER/SLAVE configuration?
No, the 7130LA35TF8 is exclusively a MASTER device. Only IDT7140-series parts function as SLAVES - they accept BUSY as inputs and lack on-chip arbitration. The 7130LA35TF8's BUSY pins are outputs only, and its functional block diagram confirms MASTER-only architecture.
What package type and pin count does the 7130LA35TF8 use?
The 7130LA35TF8 is packaged in a 64-pin STQFP (Small Thin Quad Flat Package) with PPG64 package code, measuring 10 mm × 10 mm × 1.4 mm. Pinout matches Figure 5 (drw 05) in the datasheet, including dedicated VCC/GND pairs and N/C pins in corner positions.
7130LA35TF8 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:
- 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)
7130LA35TF8 FAQ
1.How can I place an order for 7130LA35TF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130LA35TF8 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 7130LA35TF8 reliable?
The price and inventory of 7130LA35TF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130LA35TF8 is usually 5 days.
3.What payment methods are accepted for 7130LA35TF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130LA35TF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130LA35TF8?
7130LA35TF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130LA35TF8 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 7130LA35TF8?
For technical support, including 7130LA35TF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130LA35TF8 requirements.
6.How does Aetrix verify that 7130LA35TF8 is sourced from the original manufacturer or authorized distributors?
All 7130LA35TF8 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 7130LA35TF8 meets industry standards.
7.What is the process for return or replacement of 7130LA35TF8?
All 7130LA35TF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130LA35TF8, 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 7130LA35TF8 part is unused and in its original packaging.
Return procedure for 7130LA35TF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130LA35TF8 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…
