D A T A S H E E T
PRODUCT SELECTOR GUIDE
Part Number
Am29BDS128H/Am29BDS640H
Burst Frequency
66 MHz
E8, E9
54 MHz
D8, D9
Speed Option
VCC, VIO = 1.65 – 1.95 V
Max Initial Synchronous Access Time, ns (TIACC
)
56
69
Reduced Wait-state Handshaking; Even Address
Max Initial Synchronous Access Time, ns (TIACC
Reduced Wait-state Handshaking; Odd Address; or Standard Handshaking
Max Burst Access Time, ns (TBACC
Max Asynchronous Access Time, ns (TACC
Max CE# Access Time, ns (TCE
Max OE# Access Time, ns (TOE
)
71
11
87.5
13.5
)
)
50
55
)
)
11
13.5
Note: Speed Options ending in “8” indicate the “reduced wait-state handshaking” option, which speeds initial synchronous
accesses for even addresses. Speed Options ending in “9” indicate the “standard handshaking” option. See the AC
Characteristics section of this data sheet for full specifications.
BLOCK DIAGRAM
VCC
DQ15–DQ0
VSS
VIO
RDY
Buffer
RDY
Erase Voltage
Generator
Input/Output
Buffers
WE#
State
Control
RESET#
WP#
Command
Register
ACC
PGM Voltage
Generator
Data
Latch
Chip Enable
Output Enable
Logic
CE#
OE#
Y-Decoder
Y-Gating
VCC
Detector
Timer
Cell Matrix
X-Decoder
Burst
State
Control
Burst
Address
Counter
AVD#
CLK
Amax–A0
Note: Amax = A22 (128 Mb) or A21 (64 Mb)
May 10, 2006 27024B3
Am29BDS128H/Am29BDS640H
5
SPANSION [ SPANSION ]
