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71256SA20TPG - Renesas Electronics

Description: The 71256SA 5V CMOS SRAM is organized as 32K x 8. All bidirectional inputs and outputs of the 71256SA are TTL-compatible and operation is from a single 5V supply. Fully static asynchronous circuitry is used, requiring no clocks or refresh for operation.

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71256SA20TPG - Renesas Electronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 7164S20TPG
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71256SA20TPG - Renesas Electronics  - 3D model - Dual-In-Line Packages - 7164S20TPG
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71256SA20TPG Details

  • Manufacturer Part Number:

    71256SA20TPG

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    PDIP

  • Package Description:

    DIP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    PTG28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.41

  • Date Of Intro:

    2020-06-29

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Access Time-Max:

    20 ns

  • I/O Type:

    COMMON

  • JESD-30 Code:

    R-PDIP-T28

  • JESD-609 Code:

    e3

  • Length:

    34.671 mm

  • Memory Density:

    262144 bit

  • Memory IC Type:

    STANDARD SRAM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Ports:

    1

  • Number of Terminals:

    28

  • Number of Words:

    32768 words

  • Number of Words Code:

    32000

  • Operating Mode:

    ASYNCHRONOUS

  • Operating Temperature-Max:

    70 °C

  • Organization:

    32KX8

  • Output Characteristics:

    3-STATE

  • Output Enable:

    YES

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP28,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Parallel/Serial:

    PARALLEL

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    4.572 mm

  • Standby Current-Max:

    0.015 A

  • Standby Voltage-Min:

    4.5 V

  • Supply Current-Max:

    0.145 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

71256SA20TPG Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) which includes thermal design considerations, such as thermal vias, copper pours, and component placement, to ensure optimal thermal performance.
  • Renesas recommends a specific power sequencing scheme in their datasheet, which involves powering up the VCC and VCCIO pins simultaneously, followed by the VREF pin. A detailed power sequencing diagram is provided in the datasheet.
  • Renesas recommends using 0.1uF to 1uF decoupling capacitors with a voltage rating of 2.5V or higher, placed as close as possible to the VCC and VCCIO pins. The datasheet provides more information on decoupling capacitor selection and placement.
  • Renesas provides a JTAG troubleshooting guide in their application note (APL-AN-1202) which covers common issues, such as JTAG signal integrity, clock frequency, and voltage level issues. Additionally, Renesas recommends using their JTAG adapter (RTCK-001) for debugging and programming.
  • The 71256SA20TPG has an operating temperature range of -40°C to +125°C, as specified in the datasheet. However, it's essential to note that the device's performance and reliability may degrade at extreme temperatures.

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