at49sv163d ATMEL Corporation, at49sv163d Datasheet - Page 3

• Manufacturer Part Number: at49sv163d
• Description: 16-megabit 1m X 16 1.8-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

3. Block Diagram
4. Device Operation
4.1
3656A–FLASH–2/07
A0 - A19
Command Sequences
Y-DECODER
X-DECODER
ADDRESS
BUFFER
LATCH
INPUT
When the device is first powered on, it will be reset to the read or standby mode, depending
upon the state of the control line inputs. In order to perform other device functions, a series of
command sequences are entered into the device. The command sequences are shown in the
“Command Definition Table” on page 12
codes). The command sequences are written by applying a low pulse on the WE or CE input
with CE or WE low (respectively) and OE high. The address is latched on the falling edge of
CE or WE, whichever occurs last. The data is latched by the first rising edge of CE or WE.
Standard microprocessor write timings are used. The address locations used in the command
sequences are not affected by entering the command sequences.
OUTPUT
BUFFER
COMPARATOR
I/O0 - I/O15
MEMORY
IDENTIFIER
REGISTER
REGISTER
Y-GATING
STATUS
MAIN
DATA
BUFFER
INPUT
(I/O8 - I/O15 are don’t care inputs for the command
WRITE STATE
COMMAND
REGISTER
MACHINE
VOLTAGE SWITCH
PROGRAM/ERASE
AT49SV163D(T)
CE
WE
OE
RESET
RDY/BUSY
VPP
VCC
GND
3