A D V A N C E I N F O R M A T I O N
PRODUCT SELECTOR GUIDE
Am29BDS640G
Synchronous/Burst
98, 99,
Asynchronous
Part
Number
Speed/VIO/Handshaking
78, 79
73, 74
Speed/VIO/Handshaking 78, 79,
98, 99,
93, 94
93, 94
Option
(54 MHz) (54 MHz)
Option
73, 74
(40 MHz)
Max Initial Access Time,
Max Access Time,
95
87.5
88
70
90
ns (tIACC
)
ns (tACC
)
V
=
CC
1.65 –
1.95 V
Max Burst Access Time,
Max CE# Access,
ns (tCE)
20
20
13.5
13.5
14
14
70
20
90
ns (tBACC
)
Max OE# Access, ns (tOE
)
Max OE# Access, ns (tOE
)
20.5
BLOCK DIAGRAM
VCC
VSS
VSSIO
VIO
DQ15–DQ0
RDY
Buffer
RDY
Erase Voltage
Generator
Input/Output
Buffers
WE#
RESET#
WP#
State
Control
Command
Register
ACC
PGM Voltage
Generator
Data
Latch
Chip Enable
Output Enable
Logic
CE#
OE#
Y-Decoder
X-Decoder
Y-Gating
VCC
Detector
Timer
Cell Matrix
Burst
State
Control
Burst
Address
Counter
AVD#
CLK
A21–A0
May 9, 2002
Am29BDS640G
5
SPANSION [ SPANSION ]
