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AT49F8192 Datasheet(PDF) 4 Page - ATMEL Corporation

Part No. AT49F8192
Description  8-Megabit 512K x 16 5-volt Only CMOS Flash Memory
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT49F8192 Datasheet(HTML) 4 Page - ATMEL Corporation

 
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AT49F8192/8192T
4
will be read. Examining the toggle bit may begin at any time
during a program cycle.
HARDWARE DATA PROTECTION: Hardware features
protect against inadvertent programs to the AT49F8192 in
the following ways: (a) VCC sense: if VCC is below 3.8V
(typical), the program function is inhibited. (b) VCC power
on delay: once VCC has reached the VCC sense level, the
device will automatically time out 10 ms (typical) before
programming. (c) Program inhibit: holding any one of OE
low, CE high or WE high inhibits program cycles. (d) Noise
filter: pulses of less than 15 ns (typical) on the WE or CE
inputs will not initiate a program cycle.
Notes:
1. The DATA FORMAT in each bus cycle is as follows:
I/O15 - I/O8 (Don't Care); I/O7 - I/O0 (Hex)
2. The 8K word boot sector has the address range
00000H to 01FFFH for the AT49F8192 and 7E000H
to 7FFFFH for the AT49F8192T.
3. Either one of the Product ID Exit commands can be
used.
4. SA = sector addresses:
For the AT49F8192
SA = 03XXX for PARAMETER BLOCK 1
SA = 05XXX for PARAMETER BLOCK 2
SA = 7FXXX for MAIN MEMORY ARRAY
For the AT49F8192T
SA = 7DXXX for PARAMETER BLOCK 1
SA = 7BXXX for PARAMETER BLOCK 2
SA = 79XXX for MAIN MEMORY ARRAY
5. When the boot block programming lockout feature is
not enabled, the boot block and the main memory
block will erase together (form the same sector erase
command). Once the boot region has been pro-
tected, only the main memory array sector will erase
when its sector erase command is issued.
Command Definition (in Hex)(1)
Command
Sequence
Bus
Cycles
1st Bus
Cycle
2nd Bus
Cycle
3rd Bus
Cycle
4th Bus
Cycle
5th Bus
Cycle
6th Bus
Cycle
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read
1
Addr
DOUT
Chip Erase
6
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
5555
10
Sector
Erase
6
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
SA(4)(5)
30
Word
Program
4
5555
AA
2AAA
55
5555
A0
Addr
DIN
Boot Block
Lockout (2)
6
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
5555
40
Product ID
Entry
3
5555
AA
2AAA
55
5555
90
Product ID
Exit(3)
3
5555
AA
2AAA
55
5555
F0
Product ID
Exit(3)
1xxxx
F0
Absolute Maximum Ratings*
Temperature Under Bias ................................ -55
°C to +125°C
*NOTICE:
Stresses beyong those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Storage Temperature ..................................... -65
°C to +150°C
All Input Voltages (including NC pins)
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground ......................... -0.6V to VCC to +0.6V
Voltage on OE
with Respect to Ground ...................................-0.6V to +13.5V


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