AM29F400B AMD [Advanced Micro Devices], AM29F400B Datasheet - Page 3

• Manufacturer Part Number: AM29F400B
• Description: 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

PRODUCT SELECTOR GUIDE
Note: See “AC Characteristics” for full specifications.
BLOCK DIAGRAM
Family Part Number
Speed Option
Max access time, ns (t
Max CE# access time, ns (t
Max OE# access time, ns (t
RESET#
BYTE#
A0–A17
WE#
OE#
V
CE#
V
CC
SS
RY/BY#
V
V
V
CC
Command
CC
CC
Register
Control
ACC
State
Detector
= 5.0 V ± 5%
= 5.0 V ± 10%
)
CE
OE
)
)
PGM Voltage
Generator
Timer
-55
55
55
30
P R E L I M I N A R Y
Sector Switches
Erase Voltage
Am29F400B
Generator
STB
-60
60
60
30
Output Enable
Chip Enable
Logic
-70
70
70
30
Y-Decoder
X-Decoder
Am29F400B
-90
90
90
35
STB
DQ0
Input/Output
–
Buffers
Cell Matrix
DQ15 (A-1)
Y-Gating
-120
120
120
Latch
Data
50
21505C-1
-150
150
150
55
3