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7164L70DB - Renesas Electronics

Description: The 7164 5V CMOS SRAM is organized as 8K x 8. The 7164 offers a reduced power standby mode. The low-power (L) version also offers a battery backup data retention capability at power supply levels as low as 2V. All inputs and outputs of the IDT7164 are TTL-compatible and operation is from a single 5V supply, simplifying system designs. Fully static asynchronous circuitry is used, requiring no clocks or refreshing for operation. Military grade product is available.

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7164L70DB - Renesas Electronics PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - CD28-
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7164L70DB Details

  • Manufacturer Part Number:

    7164L70DB

  • Brand Name:

    Renesas

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    CDIP

  • Package Description:

    DIP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    CD28

  • ECCN Code:

    3A001.A.2.C

  • HTS Code:

    8542.32.00.41

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Access Time-Max:

    70 ns

  • I/O Type:

    COMMON

  • JESD-30 Code:

    R-CDIP-T28

  • JESD-609 Code:

    e0

  • Memory Density:

    65536 bit

  • Memory IC Type:

    STANDARD SRAM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Number of Words:

    8192 words

  • Number of Words Code:

    8000

  • Operating Mode:

    ASYNCHRONOUS

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Organization:

    8KX8

  • Output Characteristics:

    3-STATE

  • Package Body Material:

    CERAMIC, METAL-SEALED COFIRED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP28,.6

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Parallel/Serial:

    PARALLEL

  • Peak Reflow Temperature (Cel):

    240

  • Qualification Status:

    Not Qualified

  • Screening Level:

    MIL-STD-883 Class B

  • Standby Current-Max:

    0.0002 A

  • Standby Voltage-Min:

    2 V

  • Supply Current-Max:

    0.12 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

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

7164L70DB 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 using an external overcurrent protection circuit, such as a current sense resistor and a comparator, to detect overcurrent conditions. The 7164L70DB also has an internal overcurrent detection feature, but it's not enabled by default and requires external resistors to set the detection threshold.
  • Although the datasheet specifies a maximum VCC voltage of 5.5V, Renesas recommends limiting the voltage to 5V during power-up to prevent damage to the internal voltage regulator. Exceeding 5V may cause the regulator to malfunction or fail.
  • Renesas provides EMC design guidelines in their application note (APL-AN-1202) which include recommendations for PCB layout, component selection, and shielding to minimize electromagnetic interference (EMI) and ensure compliance with relevant EMC standards.
  • Renesas recommends a clock signal with a frequency tolerance of ±100 ppm and a duty cycle of 45% to 55% to ensure reliable operation. The clock signal should also have a rise and fall time of less than 10 ns to prevent clock skew and jitter.

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Part Image 7164L70DB Integrated Device Technology Inc

Standard SRAM, 8KX8, 70ns, CMOS, CDIP28