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7134LA20JG - Renesas Electronics

Description: The 7134 is a high-speed 4K x 8 Dual-Port Static RAM designed to be used in systems where on-chip hardware port arbitration is not needed. This part lends itself to those systems which cannot tolerate wait states or are designed to be able to externally arbitrate or withstand contention when both sides simultaneously access the same Dual-Port RAM location. An automatic power down feature, controlled by CE, permits the on-chip circuitry of each port to enter a very low standby power mode. Military grade prod

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7134LA20JG - Renesas Electronics - PCB symbol
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7134LA20JG - Renesas Electronics PCB footprint - Plastic Leaded Chip Carrier - Plastic Leaded Chip Carrier - PLG52
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7134LA20JG Details

  • Manufacturer Part Number:

    7134LA20JG

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    PLCC

  • Pin Count:

    52

  • Manufacturer Package Code:

    PLG52

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.41

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Access Time-Max:

    20 ns

  • I/O Type:

    COMMON

  • JESD-30 Code:

    S-PQCC-J52

  • JESD-609 Code:

    e3

  • Length:

    19.1262 mm

  • Memory Density:

    32768 bit

  • Memory IC Type:

    MULTI-PORT SRAM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Ports:

    2

  • Number of Terminals:

    52

  • Number of Words:

    4096 words

  • Number of Words Code:

    4000

  • Operating Mode:

    ASYNCHRONOUS

  • Operating Temperature-Max:

    70 °C

  • Organization:

    4KX8

  • Output Characteristics:

    3-STATE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QCCJ

  • Package Equivalence Code:

    LDCC52,.8SQ

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER

  • Parallel/Serial:

    PARALLEL

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.57 mm

  • Standby Current-Max:

    0.0015 A

  • Standby Voltage-Min:

    2 V

  • Supply Current-Max:

    0.24 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    J BEND

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    19.1262 mm

7134LA20JG Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APL-AN-114) for the 7134LA20JG. It suggests using a 4-layer PCB with a thermal relief pattern on the bottom layer to improve heat dissipation.
  • To ensure reliable operation in high-temperature environments, it's essential to follow Renesas' guidelines for thermal design and layout. Additionally, consider using thermal interface materials (TIMs) and heat sinks to reduce the junction temperature. Renesas also recommends derating the output current and voltage according to the temperature derating curve provided in the datasheet.
  • Renesas recommends using low-ESR capacitors with a value of 10uF to 22uF for the input and output capacitors. The capacitors should be rated for the maximum operating voltage and have a low equivalent series resistance (ESR) to minimize voltage ripple and ensure stable operation.
  • To troubleshoot common issues like output voltage instability or oscillation, check the PCB layout for any signs of noise coupling or resonance. Ensure that the input and output capacitors are properly selected and placed close to the device. Also, verify that the feedback loop is properly compensated and the output voltage is within the specified range. Renesas provides a troubleshooting guide in their application note (APL-AN-114) that can help identify and resolve common issues.
  • Using a different inductor value or type than recommended can affect the performance and stability of the device. Renesas recommends using an inductor with a value of 1.5uH to 3.3uH and a saturation current rating of at least 2A. Using a different inductor value or type can lead to issues like output voltage instability, oscillation, or reduced efficiency. It's essential to evaluate the inductor's characteristics and ensure it meets the recommended specifications.

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7134LA20JG Overview

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