用户手册 — Microchip Technology 25AA02E48T-I/OT Memory IC SOT-23-6 2 K 256 x 8

目录

• Device Selection Table

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• Features:

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• Description:

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• Pin Function Table

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• 1.0 Electrical Characteristics

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• Absolute Maximum Ratings(†)

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  • TABLE 1-1: DC Characteristics

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  • TABLE 1-2: AC Characteristics

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  • TABLE 1-3: AC Test Conditions

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  • FIGURE 1-1: Hold Timing

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  • FIGURE 1-2: Serial Input Timing

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  • FIGURE 1-3: Serial Output Timing

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• 2.0 Functional Description

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• 2.1 Principles of Operation

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• 2.2 Read Sequence

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• 2.3 Write Sequence

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• Block Diagram

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  • TABLE 2-1: Instruction set

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  • FIGURE 2-1: Read Sequence

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  • FIGURE 2-2: Byte Write Sequence

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  • FIGURE 2-3: Page Write Sequence

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• 2.4 Write Enable (WREN) and Write Disable (WRDI)

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  • FIGURE 2-4: Write Enable Sequence (WREN)

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  • FIGURE 2-5: Write Disable Sequence (WRDI)

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• 2.5 Read Status Register Instruction (RDSR)

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  • TABLE 2-2: Status Register

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  • FIGURE 2-6: Read Status Register Timing Sequence (RDSR)

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• 2.6 Write Status Register Instruction (WRSR)

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  • TABLE 2-3: Array Protection

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  • FIGURE 2-7: Write Status Register Timing Sequence (WRSR)

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• 2.7 Data Protection

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• 2.8 Power-On State

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  • TABLE 2-4: Write-Protect Functionality Matrix

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• 3.0 Pre-Programmed EUI-48™ or eui-64™ Node Address

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  • FIGURE 3-1: Memory Organization

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• 3.1 Factory-Programmed Write Protection

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• 3.2 EUI-48™ Node Address (25AA02E48)

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  • FIGURE 3-2: EUI-48 Node Address Physical Memory Map Example (25AA02E48)

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• 3.3 EUI-64™ Node Address (25AA02E64)

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  • FIGURE 3-3: EUI-64 Node Address Physical Memory Map Example (25AA02E64)

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• 4.0 PIN DESCRIPTIONS

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  • TABLE 4-1: Pin Function Table

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• 4.1 Chip Select (CS)

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• 4.2 Serial Output (SO)

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• 4.3 Write-Protect (WP)

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• 4.4 Serial Input (SI)

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• 4.5 Serial Clock (SCK)

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• 4.6 Hold (HOLD)

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• 5.0 Packaging Information

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• 5.1 Package Marking Information

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• Appendix A: REVISION HISTORY

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• The Microchip Web Site

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• Customer Change Notification Service

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• Customer Support

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• Reader Response

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• Product Identification System

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• Trademarks

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• Worldwide Sales

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