32 Megabit (4M x 8-Bit/2M x 16-Bit),
CMOS 3.0 Volt-only, Boot Sector Flash Memory

General Description
The Am29LV320D is a 32 megabit, 3.0 Volt-only Flash memory device. The device is designed to be programmed in-system with the standard 3.0 Volt V_CC supply, and can also be programmed in standard EPROM programmers. The device is available with an access time of 90 or 120 ns. The devices are offered in 48-pin TSOP and 48-ball FBGA packages.

Distinctive Characteristics

Architectural Advantages

• Security on Silicon (SecSi™ Sector)
• Current version of device has 64 Kbytes; future versions will have 256 bytes
• Factory locked and identifiable: 16 bytes (8 words) 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: Can be programmed once and then permanently locked after being shipped from AMD
• Zero Power Operation
• Sophisticated power management circuits reduce power consumed during inactive periods to nearly zero
• Top or bottom boot block
• Manufactured on 0.23 µm process technology
• Compatible with JEDEC standards
• Pinout and software compatible with single power supply Flash

• 48-pin TSOP
• 48-ball FBGA

Performance Characteristics

• High performance
• Access time as fast 90 ns
• Program time: 7µs/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 erase cycle guarantee per sector
• 20-year data retention at 125°C
• Reliable operation for the life of the system

Software Features

• Supports Common Flash Memory Interface (CFI)
• Erase Suspend/Erase Resume
• Suspends erase operations to allow programming in non-suspended sectors
• Data# Polling and toggle bits
• Provides a software method of detecting program or erase operation completion
• Unlock Bypass Mode Program Command
• Reduces overall programming time when issuing multiple program command sequences

Hardware Features

• 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#) function allows protection of two outermost boot sectors, regardless of sector protect status
• Acceleration (ACC) function provides accelerated program times
• 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