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Am49LV128BM Product Overview
Stacked Multi-Chip Package
(MCP) 128 Megabit (8 M x 16 Bit) MirrorBit Uniform Sector Flash Memory and
32 Mbit (2 M x 16-Bit) pseudo-static RAM with Page Mode
General Description
The 128 Mbit MirrorBit device is a 128 Mbit, 3.0 volt single power supply
flash memory devices organized as 8,388,608 words. The device has a 16-bit
wide data bus. The device can be programmed either in the host system or
in standard EPROM programmers.
Distinctive Characteristics
Architectural Advantages
- Single power supply operation
- 3 volt read, erase, and program operations
- Manufactured on 0.23 µm MirrorBit process technology
- SecSi™ (Secured Silicon) Sector region
- 128-word sector for permanent, secure identification through an
8-word random Electronic Serial Number, accessible through a command
sequence
- May be programmed and locked by the customer
- Flexible sector architecture
- Two hundred fifty-six 32 Kword sectors
- Compatibility with JEDEC standards
- Provides pinout and software compatibility for single-power supply
flash, and superior inadvertent write protection
- Minimum 100,000 erase cycle guarantee per sector
20-year data retention at 125?C
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Performance Characteristics
- High performance
- As fast as 105 ns access time
- 25 ns page read times
- 0.5 s typical sector erase time
- 15 µs typical write buffer word programming time: 16-word
write buffer reduces overall programming time for multiple-word
updates
- 4-word page read buffer
- 16-word write buffer
- Low power consumption (typical values at 3.0 V, 5 MHz)
- 30 mA typical active read current
- 50 mA typical erase/program current
- 1 µA typical standby mode current
- Package option
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Software Features
- Program Suspend & Resume: read other sectors before programming
operation is completed
- Erase Suspend & Resume: read/program other sectors before an
erase operation is completed
- Data# polling & toggle bits provide status
- Unlock Bypass Program command reduces overall multiple-word or byte
programming time
- CFI (Common Flash Interface) compliant: allows host system to identify
and accommodate multiple flash devices
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Hardware Features
- Sector Group Protection: hardware-level method of preventing write
operations within a sector group
- Temporary Sector Group Unprotect: VID-level method of changing code
in locked sector groups
- WP#/ACC input accelerates programming time (when high voltage is
applied) for greater throughput during system production. Protects last
sector regardless of sector protection settings
- Hardware reset input (RESET#) resets device
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