MCP Features

• Power supply voltage of 2.7 to 3.3 volt
• High performance
  • Access time as fast as 70 ns
• Package
  • 73-Ball FBGA
• Operating Temperature
  • - 40°C to +85°C

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Flash Memory Features
(Am29DL640G/Am29DL320G)

• Features apply to Am29DL640G and Am29DL320G independently.

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Architectural Advantages

• Simultaneous Read/Write operations
  • Data can be continuously read from one bank while executing erase/program functions in another bank. Zero latency between read and write operations
• Flexible Bank™ architecture
  • Read may occur in any of the three banks not being written or erased. Four banks may be grouped by customer to achieve desired bank divisions.
• Manufactured on 0.17 µm process technology
• SecSi™ (Secured Silicon) Sector
  • Extra 256 byte sector on Am29DL640G
  • Extra 256 byte sector on Am29DL320G
  • Factory locked and identifiable: 16 bytes available for secure, random factory Electronic Serial Number; verifiable as factory locked through autoselect function. ExpressFlash option allows entire sector to be available for factory-secured data
  • Customer lockable: Sector is one-time programmable. Once sector is locked, data cannot be changed.
• Zero Power Operation
  • Sophisticated power management circuits reduce power consumed during inactive periods to nearly zero.
• Boot sectors
  • Top and bottom boot sectors in Am29DL640G
  • Top or bottom boot options in Am29DL320G
• Compatible with JEDEC standards
  • Pinout and software compatible with single-power-supply flash standard

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Performance Characteristics

• High performance
  • Access time as fast as 70 ns
  • Program time: 4 µs/word typical utilizing Accelerate function
• Ultra low power consumption (typical values)
  • 2 mA active read current at 1 MHz
  • 10 mA active read current at 5 MHz
  • 200 nA in standby or automatic sleep mode
• Minimum 1 million write cycles guaranteed per sector
• 20 year data retention at 125°C
  • Reliable operation for the life of the system

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Software Features

• Supports Common Flash Memory Interface (CFI)
• Program/Erase Suspend/Erase Resume
  • Suspends program/erase operations to allow programming/erasing in same bank
• Data# Polling and Toggle Bits
  • Provides a software method of detecting the status of program or erase cycles

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Hardware Features

• Any combination of sectors can be erased
• Ready/Busy# output (RY/BY#)
  • Hardware method for detecting program or erase cycle completion
• Hardware reset pin (RESET#)
  • Hardware method of resetting the internal state machine to the read mode
• WP#/ACC input pin
  • Write protect (WP#) protects sectors 0, 1, 140, and 141 in Am29DL640G, and two outermost boot sectors in Am29DL320G
  • Acceleration (ACC) function accelerates program timing
• Sector protection
  • Hardware method of locking a sector, either in-system or using programming equipment, to prevent any program or erase operation within that sector
  • Temporary Sector Unprotect allows changing data in protected sectors in-system

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pSRAM Features

• Power dissipation
  • Operating: 30 mA maximum
  • Standby: 70 µA maximum
• CE1s# and CE2s Chip Select
• Power down features using CE1s# and CE2s
• Data retention supply voltage: 2.7 to 3.3 volt
• Byte data control: LB#s (DQ7-DQ0), UB#s (DQ15-DQ8)

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