Microchip Technology 93LC66A/SN Memory IC SOIC-8 User Manuals

Table of Contents

• Device Selection Table

  1
• Features:

  1
• Pin Function Table

  1
• Description:

  1
• Package Types (not to scale)

  2
• 1.0 Electrical Characteristics

  3
  • Absolute Maximum Ratings(†)

    3
  • TABLE 1-1: DC Characteristics

    3
  • TABLE 1-2: AC Characteristics

    4
    • FIGURE 1-1: Synchronous Data Timing

      5
  • TABLE 1-3: Instruction Set for X16 Organization (93XX66B or 93XX66C with ORG = 1)

    5
  • TABLE 1-4: Instruction Set for X8 Organization (93XX66A or 93XX66C with ORG = 0)

    5
• 2.0 Functional Description

  6
  • 2.1 Start Condition

    6
  • 2.2 Data In/Data Out (DI/DO)

    6
  • 2.3 Data Protection

    6
    • Block Diagram

      6
  • 2.4 Erase

    7
    • FIGURE 2-1: Erase Timing for 93AA and 93LC Devices

      7
    • FIGURE 2-2: Erase Timing for 93C Devices

      7
  • 2.5 Erase All (ERAL)

    8
    • FIGURE 2-3: ERAL Timing for 93AA and 93LC Devices

      8
    • FIGURE 2-4: ERAL Timing for 93C Devices

      8
  • 2.6 Erase/Write Disable and Enable (EWDS/EWEN)

    9
    • FIGURE 2-5: EWDS Timing

      9
    • FIGURE 2-6: EWEN Timing

      9
  • 2.7 Read

    9
    • FIGURE 2-7: Read Timing

      9
  • 2.8 Write

    10
    • FIGURE 2-8: Write Timing for 93AA and 93LC Devices

      10
    • FIGURE 2-9: Write Timing for 93C Devices

      10
  • 2.9 Write All (WRAL)

    11
    • FIGURE 2-10: WRAL Timing for 93AA and 93LC Devices

      11
    • FIGURE 2-11: WRAL Timing for 93C Devices

      11
• 3.0 Pin Descriptions

  12
  • TABLE 3-1: Pin Descriptions

    12
  • 3.1 Chip Select (CS)

    12
  • 3.2 Serial Clock (CLK)

    12
  • 3.3 Data In (DI)

    12
  • 3.4 Data Out (DO)

    12
  • 3.5 Organization (ORG)

    12
• 4.0 Packaging Information

  13
  • 4.1 Package Marking Information

    13
• Product Identification System

  35
• Trademarks

  37
• Worldwide Sales

  38