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AS7C256A-12JIN

Standard SRAM, 32KX8, 12ns, CMOS, PDSO28, 0.300 INCH, LEAD FREE, PLASTIC, SOJ-28

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Overview of AS7C256A-12JIN

Functional descriptionThe AS7C256A is a 5.0V high-performance CMOS 262,144-bit Static Random-Access Memory (SRAM) device organized as 32,768 words × 8 bits. It is designed for memory applications requiring fast data access at low voltage, including PentiumTM, PowerPCTM, and portable computing. Alliance’s advanced circuit design and process techniques permit 5.0V operation without sacrificing performance or operating margins.Features• Pin compatible with AS7C256• Industrial and commercial temperature options• Organization: 32,768 words × 8 bits• High speed - 10/12/15/20 ns address access time - 5, 6, 7, 8 ns output enable access time• Very low power consumption: ACTIVE - 412.5 mW max @ 10 ns• Very low power consumption: STANDBY - 11 mW max CMOS I/O• Easy memory expansion with CE and OE inputs• TTL-compatible, three-state I/O• 28-pin JEDEC standard packages - 300 mil SOJ - 8 × 13.4 mm TSOP 1• ESD protection ≥ 2000 volts• Latch-up current ≥ 200 mA• 2.0V Data retention

Key Features

  • Pin compatible with AS7C256
  • Industrial and commercial temperature options
  • Organization: 32,768 words × 8 bits
  • High speed
  • - 10/12/15/20 ns address access time
  • - 5, 6, 7, 8 ns output enable access time
  • Very low power consumption: ACTIVE
  • - 412.5 mW max @ 10 ns
  • Very low power consumption: STANDBY
  • - 11 mW max CMOS I/O
  • Easy memory expansion with CE and OE inputs
  • TTL-compatible, three-state I/O
  • 28-pin JEDEC standard packages
  • - 300 mil SOJ
  • - 8 × 13.4 mm TSOP 1
  • ESD protection ≥ 2000 volts
  • Latch-up current ≥ 200 mA
  • 2.0V Data retention

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Pbfree Code Yes Rohs Code Yes
Part Life Cycle Code Active Ihs Manufacturer ALLIANCE MEMORY INC
Part Package Code SOJ Package Description SOJ, SOJ28,.34
Pin Count 28 Reach Compliance Code compliant
ECCN Code EAR99 HTS Code 8542.32.00.41
Factory Lead Time 20 Weeks Samacsys Manufacturer Alliance Memory
Access Time-Max 12 ns I/O Type COMMON
JESD-30 Code R-PDSO-J28 JESD-609 Code e3/e6
Length 18.415 mm Memory Density 262144 bit
Memory IC Type STANDARD SRAM Memory Width 8
Moisture Sensitivity Level 3 Number of Functions 1
Number of Terminals 28 Number of Words 32768 words
Number of Words Code 32000 Operating Mode ASYNCHRONOUS
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Organization 32KX8 Output Characteristics 3-STATE
Package Body Material PLASTIC/EPOXY Package Code SOJ
Package Equivalence Code SOJ28,.34 Package Shape RECTANGULAR
Package Style SMALL OUTLINE Parallel/Serial PARALLEL
Power Supplies 5 V Qualification Status Not Qualified
Seated Height-Max 3.759 mm Standby Current-Max 0.002 A
Standby Voltage-Min 4.5 V Supply Current-Max 0.07 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 INDUSTRIAL
Terminal Form J BEND Terminal Pitch 1.27 mm
Terminal Position DUAL

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