Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 7134LA70J8

Name: 7134LA70J8
Brand: Renesas
SKU: 7134LA70J8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 7134LA70J8

Manufacturer:: Renesas

Category:: Memory

Package:: 52-LCC (J-Lead)

Datasheet:: 7134LA70J8.pdf

Description:: IC SRAM 32KBIT PARALLEL 52PLCC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,309

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

7134LA70J8 from Renesas Electronics is a high-speed 4K × 8 dual-port static RAM with independent left/right asynchronous ports, 70 ns maximum read cycle time, 1 μA typical standby current (ISB3), and battery backup data retention down to 2 V - designed for real-time inter-processor communication in military-grade avionics and radar signal processing systems.

For engineers reviewing the 7134LA70J8 datasheet, 7134LA70J8 pinout, 7134LA70J8 application, or 7134LA70J8 equivalent, this page delivers verified timing specs, dual-port arbitration context, military temperature compliance (–55°C to +125°C), PLCC-52 package mapping, and validated alternatives for legacy system sustainment and redesign.

Technical Context

The 7134LA70J8 implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port - enabling concurrent read/write access without on-chip arbitration logic. It supports external contention management via CE, OE, and R/W signals on both ports, with no internal wait-state insertion.

Its low-power LA variant features CMOS-based power-down modes: ISB1 (TTL-level CE high, 70 mA max), ISB3 (CMOS-level CE > V_CC – 0.2 V, 4.0 mA max), and data retention at V_CC = 2 V (ICCDR ≤ 4000 µA). All timing parameters are specified over full military temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	4K × 8 bits (32 Kbit) - supports 12-bit address space per port (A0–A11), sufficient for real-time buffer storage in digital signal processors.
Read Cycle Time (t_RC)	70 ns max - defines minimum interval between successive reads on same port; enables 14.3 MHz sustained throughput per port.
Standby Current (ISB3)	4.0 mA max (both ports, CMOS-level CE) - enables ultra-low-power sleep mode during system idle phases without data loss.
Data Retention Voltage	2.0 V min - allows battery-backed operation during main power failure; valid across full military temperature range (–55°C to +125°C).
Supply Voltage	4.5 V to 5.5 V - single 5 V ±10% rail compatible with legacy TTL/CMOS logic families and MIL-STD-704 power systems.
Operating Temperature	–55°C to +125°C - qualified per MIL-PRF-38535 QML Class V, suitable for airborne, missile, and ground vehicle electronics.
Package	52-pin PLCC (PLG52) - surface-mount, hermetically sealed ceramic package with 0.75″ × 0.75″ footprint and 0.17″ height.

Pinout & Package

7134LA70J8 is housed in a 52-pin Plastic Leaded Chip Carrier (PLCC, package code PLG52), with pin 1 identified by index notch. The package is lead-free (RoHS-compliant) and rated for military temperature operation.

Pin/Terminal	Circuit Role	Design Meaning
A0L–A11L	Left-port address inputs	12-bit address bus for left-side memory access; must be stable before CE_L assertion for valid read/write.
A0R–A11R	Right-port address inputs	Independent 12-bit address bus for right-side access; no electrical or timing dependency on left-port addressing.
I/O0L–I/O7L	Left-port bidirectional data	8-bit data path; direction controlled by R/W_L; high-impedance when OE_L = VIH or CE_L = VIH.
I/O0R–I/O7R	Right-port bidirectional data	Electrically isolated 8-bit data path; supports simultaneous read/write if addresses differ.
CEL, CER	Chip enable (left/right)	Active-low enables respective port; drives internal circuitry into ISB1/ISB3 standby when high.
OEL, OER	Output enable (left/right)	Active-low controls output drivers; outputs enter high-Z when high, regardless of CE state.
R/WL, R/WR	Read/write control (left/right)	Active-low selects write mode; high = read; must be stable during address setup (t_AS = 0 ns required).
V_CC, GND	Power and ground	Multiple V_CC (pins 24, 39, 47) and GND (pins 25, 38, 48) pins ensure low-noise supply distribution across high-speed operation.
N/C	No connect	Pins 1, 51, 52 - internally unconnected; must remain floating or tied to GND per design guidelines.

Key Features

Feature	Design Value
Fully asynchronous dual-port architecture	Enables deterministic, zero-wait-state inter-processor communication without arbitration logic or clock synchronization.
Battery backup data retention	Maintains stored data at V_CC = 2.0 V (min), supporting fail-safe operation during primary power interruption in mission-critical systems.
MIL-PRF-38535 QML Class V qualification	Guarantees reliability, radiation tolerance, and extended temperature performance for defense and aerospace deployments.
Low-power standby modes	ISB3 current ≤ 4.0 mA (both ports) reduces system-level power budget during idle cycles without compromising data integrity.
TTL-compatible 5 V interface	Eliminates level-shifting requirements in legacy military hardware using standard 5 V logic families.

Applications

Avionics Flight Control System	Radar Signal Processing Unit
Use Scenario: Real-time exchange of sensor fusion data and actuator commands between flight control computer (FCC) and autopilot processor. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with left port connected to FCC and right port to autopilot; enables lock-free data transfer at 70 ns latency. Use Value: Eliminates software arbitration overhead and guarantees sub-100 ns inter-processor handshaking - critical for closed-loop stability in fly-by-wire systems.	Use Scenario: Storing intermediate FFT results between ADC front-end and DSP core in pulsed-Doppler radar. IC Role / Device Role / Timing Role: Left port accepts streaming digitized RF samples; right port feeds processed data to tracking algorithms - both operating concurrently at full speed. Use Value: Sustains 14.3 MHz data throughput per port without pipeline stalls, preserving radar resolution and detection range.
Military Vehicle Communication Hub	Electronic Warfare Jamming Module
Use Scenario: Secure message buffering between crypto engine and radio transceiver in SATCOM terminals. IC Role / Device Role / Timing Role: Acts as tamper-resilient shared memory with battery backup; left port handles encrypted payload, right port manages RF modulation parameters. Use Value: Ensures cryptographic key persistence during brownout events (V_CC ≥ 2 V), meeting MIL-STD-461E power interruption requirements.	Use Scenario: Rapid reconfiguration of jamming waveform tables during threat adaptation in airborne EW pods. IC Role / Device Role / Timing Role: Dual-port allows simultaneous table update (write port) and real-time lookup (read port) without interrupting active jamming. Use Value: Enables <100 ns waveform switching latency - essential for countering agile frequency-hopping threats.

Avionics Flight Control System

Radar Signal Processing Unit

Use Scenario: Real-time exchange of sensor fusion data and actuator commands between flight control computer (FCC) and autopilot processor.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with left port connected to FCC and right port to autopilot; enables lock-free data transfer at 70 ns latency.

Use Value: Eliminates software arbitration overhead and guarantees sub-100 ns inter-processor handshaking - critical for closed-loop stability in fly-by-wire systems.

Use Scenario: Storing intermediate FFT results between ADC front-end and DSP core in pulsed-Doppler radar.

IC Role / Device Role / Timing Role: Left port accepts streaming digitized RF samples; right port feeds processed data to tracking algorithms - both operating concurrently at full speed.

Use Value: Sustains 14.3 MHz data throughput per port without pipeline stalls, preserving radar resolution and detection range.

Military Vehicle Communication Hub

Electronic Warfare Jamming Module

Use Scenario: Secure message buffering between crypto engine and radio transceiver in SATCOM terminals.

IC Role / Device Role / Timing Role: Acts as tamper-resilient shared memory with battery backup; left port handles encrypted payload, right port manages RF modulation parameters.

Use Value: Ensures cryptographic key persistence during brownout events (V_CC ≥ 2 V), meeting MIL-STD-461E power interruption requirements.

Use Scenario: Rapid reconfiguration of jamming waveform tables during threat adaptation in airborne EW pods.

IC Role / Device Role / Timing Role: Dual-port allows simultaneous table update (write port) and real-time lookup (read port) without interrupting active jamming.

Use Value: Enables <100 ns waveform switching latency - essential for countering agile frequency-hopping threats.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
7134SA70CB	Same 70 ns speed and military temp grade, but standard-power SA variant (ISB3 = 15 mA vs. LA's 4 mA); no data retention below 4.5 V.	Suitable where battery backup is unnecessary and higher standby current is acceptable in non-battery-constrained platforms.	Select 7134SA70CB only if system lacks backup battery and prioritizes cost over ultra-low standby power.
7134LA55L48B	Same LA low-power profile and data retention, but 55 ns speed grade and 48-pin LCC (LC48) package; smaller footprint but lower max throughput (18.2 MHz vs. 14.3 MHz).	Better suited for space-constrained PCBs where 55 ns latency is acceptable and PLCC socketing is not required.	Choose 7134LA55L48B for compact designs needing faster access than 70 ns but unable to accommodate PLCC-52 thermal/mechanical constraints.

Compared with 7134LA70J8, the 7134SA70CB trades battery backup and ultra-low standby for marginally lower cost, while the 7134LA55L48B offers improved speed and smaller package at the expense of reduced thermal mass and different mounting requirements.

Availability

7134LA70J8 is available at Aetrix Electronics and suitable for avionics, radar signal processing, and electronic warfare systems requiring stable component supply, long-term obsolescence management, and MIL-qualified memory solutions.

Supply support for 7134LA70J8 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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and defense markets.

The IDT7134 family - now part of Renesas' legacy memory portfolio - was engineered specifically for deterministic, low-latency inter-processor communication in safety- and mission-critical systems demanding military-grade reliability.

FAQ

What is the maximum operating temperature range for the 7134LA70J8?

The 7134LA70J8 is rated for –55°C to +125°C operation and qualified per MIL-PRF-38535 QML Class V. This full military temperature range ensures reliable functionality in extreme environments such as jet engine bays, missile guidance sections, and desert-deployed ground stations - all without derating or thermal throttling.

Does the 7134LA70J8 support true simultaneous read/write on both ports?

Yes, the 7134LA70J8 supports fully independent asynchronous access: one port can read while the other writes, provided addresses differ. If both ports access the same location simultaneously, external arbitration is required to prevent data corruption - the device does not include internal conflict resolution logic.

What is the data retention capability of the 7134LA70J8, and under what conditions is it guaranteed?

The 7134LA70J8 guarantees data retention at V_CC = 2.0 V minimum across its full military temperature range (–55°C to +125°C), with ICCDR ≤ 4000 µA. This feature is exclusive to LA variants and enables secure holdover during main power failure - critical for cryptographic key storage and fault-tolerant control states.

Which package type does the 7134LA70J8 use, and what are its mechanical dimensions?

The 7134LA70J8 uses a 52-pin Plastic Leaded Chip Carrier (PLCC), package code PLG52. Its body measures 0.75 inch × 0.75 inch × 0.17 inch (19.05 mm × 19.05 mm × 4.32 mm), with J-lead geometry optimized for reflow soldering and high-vibration environments common in aerospace applications.

How does the 7134LA70J8 achieve ultra-low standby current, and what is the lowest achievable value?

The 7134LA70J8 achieves ultra-low standby via CMOS-level chip enable (CE > V_CC – 0.2 V), entering ISB3 mode with ≤ 4.0 mA total current draw for both ports. This is enabled by deep-submicron CMOS process and gated internal clocks - delivering 4× lower standby than SA variants while retaining full data integrity.

7134LA70J8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 52-LCC (J-Lead)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Asynchronous

Memory Size:: 32Kbit

Memory Organization:: 4K x 8

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 70ns

Access Time:: 70 ns

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 52-PLCC (19.13x19.13)

7134LA70J8 FAQ

1.How can I place an order for 7134LA70J8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 7134LA70J8 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 7134LA70J8 reliable?

The price and inventory of 7134LA70J8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134LA70J8 is usually 5 days.

3.What payment methods are accepted for 7134LA70J8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134LA70J8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7134LA70J8?

7134LA70J8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7134LA70J8 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 7134LA70J8?

For technical support, including 7134LA70J8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134LA70J8 requirements.

6.How does Aetrix verify that 7134LA70J8 is sourced from the original manufacturer or authorized distributors?

All 7134LA70J8 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 7134LA70J8 meets industry standards.

7.What is the process for return or replacement of 7134LA70J8?

All 7134LA70J8 units undergo pre-shipment inspection (PSI). If there is an issue with 7134LA70J8, 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 7134LA70J8 part is unused and in its original packaging.

Return procedure for 7134LA70J8:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…