s71jl064ha0bfw62 Advanced Micro Devices, s71jl064ha0bfw62 Datasheet - Page 38

• Manufacturer Part Number: s71jl064ha0bfw62
• Description: Stacked Multi-chip Product Mcp Flash Memory And Psram Cmos 3.0volt-only, Simultaneous Operation Flash Memories And Static Ram/pseudo-static Ram
• Manufacturer: Advanced Micro Devices

General Description
38
Simultaneous Read/Write Operations with Zero Latency
S71JLxxxHxx_00 Features
Bank 1
Bank 2
Bank 3
Bank 4
Bank
The S71JLxxxHxx_00 is a 64 megabit, 3.0 volt-only flash memory device, orga-
nized as 4,194,304 words of 16 bits each or 8,388,608 bytes of 8 bits each. Word
mode Data appears on DQ15–DQ0; byte mode data appears on DQ7–DQ0. The
device is designed to be programmed in-system with the standard 3.0 volt V
supply, and can also be programmed in standard EPROM programmers.
Standard control pins—chip enable (CE#), write enable (WE#), and output en-
able (OE#)—control normal read and write operations, and avoid bus contention
issues.
The device requires only a single 3.0 volt power supply for both read and write
functions. Internally generated and regulated voltages are provided for the pro-
gram and erase operations.
The Simultaneous Read/Write architecture provides simultaneous operation
by dividing the memory space into four banks, two 8 Mb banks with small and
large sectors, and two 24 Mb banks of large sectors. Sector addresses are fixed,
system software can be used to form user-defined bank groups.
During an Erase/Program operation, any of the three non-busy banks may be
read from. Note that only two banks can operate simultaneously. The device can
improve overall system performance by allowing a host system to program or
erase in one bank, then immediately and simultaneously read from the other
bank, with zero latency. This releases the system from waiting for the completion
of program or erase operations.
The S71JLxxxHxx_00 can be organized as both a top and bottom boot sector
configuration.
The SecSi™ (Secured Silicon) Sector is an extra 256 byte sector capable of
being permanently locked by FASL or customers. The SecSi Customer Indicator
Bit (DQ6) is permanently set to 1 if the part has been customer locked, perma-
nently set to 0 if the part has been factory locked, and is 0 if customer lockable.
This way, customer lockable parts can never be used to replace a factory locked
part.
Factory locked parts provide several options. The SecSi Sector may store a se-
cure, random 16 byte ESN (Electronic Serial Number), customer code
(programmed through Spansion programming services), or both. Customer Lock-
able parts may utilize the SecSi Sector as bonus space, reading and writing like
any other flash sector, or may permanently lock their own code there.
Megabits
24 Mb
24 Mb
8 Mb
8 Mb
S29JL064H
P r e l i m i n a r y
Forty-eight 64 Kbyte/32 Kword
Forty-eight 64 Kbyte/32 Kword
Fifteen 64 Kbyte/32 Kword
Fifteen 64 Kbyte/32 Kword
Eight 8 Kbyte/4 Kword,
Eight 8 Kbyte/4 Kword,
Sector Sizes
S71JLxxxHxx_00A1 February 25, 2004
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