PIN CONFIGURATION
CLK
= Clock Input that can be tied to the system
or microprocessor clock and provides the
fundamental timing and internal operating
frequency.
A–1
= Least significant address bit for the 16-bit
data bus, and selects between the high
and low word. A –1 is not used for the
32-bit mode (WORD# = VIH).
ADV#
IND#
= Load Burst Address input. Indicates that
the valid address is present on the address
inputs.
A0–A18
= 19-bit address bus for 16 Mb device. A9
supports 12 V autoselect inputs.
DQ0–DQ31 = 32-bit data inputs/outputs/float
= End of burst indicator for finite bursts only.
IND is low when the last word in the burst
sequence is at the data outputs.
WORD#
= Selects 16-bit or 32-bit mode. When
WORD# = VIH, data is output on
DQ31–DQ0. When WORD# = VIL, data is
output on DQ15–DQ0.
WAIT#
WP#
= Provides data valid feedback only when
the burst length is set to continuous.
CE#
OE#
= Chip Enable Input. This signal is asynchro-
nous relative to CLK for the burst mode.
= Write Protect input. When WP# = VOL, the
two outermost bootblock sector in the 75%
bank are write protected regardless of
other sector protection configurations.
= Output Enable Input. This signal is asyn-
chronous relative to CLK for the burst
mode.
ACC
= Acceleration input. When taken to 12 V,
program and erase operations are acceler-
ated. When not used for acceleration, ACC
WE#
=
Write enable. This signal is asynchronous
relative to CLK for the burst mode.
= VSS to VCC
.
VSS
= Device ground
V
IO (VCCQ
)
= Output Buffer Power Supply (1.65 V to
2.75 V)
NC
= Pin not connected internally
RY/BY#
=
Ready/Busy output and open drain. When
RY/BY# = VIH, the device is ready to ac-
cept read operations and commands.
When RY/BY# = VOL, the device is either
executing an embedded algorithm or the
device is executing a hardware reset oper-
ation.
VCC
= Chip Power Supply (2.5 V to 2.75 V)
= Hardware reset input
RESET#
LOGIC SYMBOLS
x16 Mode
x32 Mode
20
19
A-1 to A18
16
A0–A18
32
DQ0–DQ15
DQ0–DQ31
CLK
CLK
CE#
CE#
OE#
OE#
WE#
WE#
IND/WAIT#
RY/BY#
IND/WAIT#
RY/BY#
RESET#
ADV#
ACC
RESET#
ADV#
ACC
WP#
WP#
V
IO (VCCQ
)
VIO (VCCQ
)
WORD#
WORD#
June 7, 2006
Am29BDD160G
9
SPANSION [ SPANSION ]
