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8 Mbit LPC Flash
A Microchip Technology Company
SST49LF080A
Data Sheet
The SST49LF080A flash memory device is designed to interface with the LPC
bus for PC and Internet Appliance application in compliance with Intel Low Pin
Count (LPC) Interface Specification 1.0. Two interface modes are supported: LPC
mode for in-system operations and Parallel Programming (PP) mode to interface
with programming equipment. The SST49LF080A flash memory device is manu-
factured with SST's proprietary, high-performance SuperFlash? Technology. The
split-gate cell design and thick-oxide tunneling injector attain better reliability and
manufacturability compared with alternate approaches
Features
? LPC Interface Flash
– SST49LF080A: 1024K x8 (8 Mbit)
? Conforms to Intel LPC Interface Specification 1.0
? Flexible Erase Capability
– Uniform 4 KByte Sectors
– Uniform 64 KByte overlay blocks
– 64 KByte Top Boot Block protection
– Chip-Erase for PP Mode Only
? Single 3.0-3.6V Read and Write Operations
? Superior Reliability
– Endurance: 100,000 Cycles (typical)
– Greater than 100 years Data Retention
? Low Power Consumption
– Active Read Current: 6 mA (typical)
– Standby Current: 10 μA (typical)
? Fast Sector-Erase/Byte-Program Operation
– Sector-Erase Time: 18 ms (typical)
– Block-Erase Time: 18 ms (typical)
– Chip-Erase Time: 70 ms (typical)
– Byte-Program Time: 14 μs (typical)
– Chip Rewrite Time: 16 seconds (typical)
– Single-pulse Program or Erase
– Internal timing generation
? Two Operational Modes
– Low Pin Count (LPC) Interface mode for
in-system operation
– Parallel Programming (PP) Mode for fast production pro-
gramming
? LPC Interface Mode
– 5-signal communication interface supporting byte Read
and Write
– 33 MHz clock frequency operation
– WP# and TBL# pins provide hardware write protect for
entire chip and/or top boot block
– Standard SDP Command Set
– Data# Polling and Toggle Bit for End-of-Write detection
– 5 GPI pins for system design flexibility
– 4 ID pins for multi-chip selection
? Parallel Programming (PP) Mode
– 11-pin multiplexed address and 8-pin data
I/O interface
– Supports fast programming In-System on
programmer equipment
? CMOS and PCI I/O Compatibility
? Packages Available
– 32-lead PLCC
– 32-lead TSOP (8mm x 14mm)
? All non-Pb (lead-free) devices are RoHS compliant
?2011 Silicon Storage Technology, Inc.
www.microchip.com
DS25086A
11/11
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