L017D70VC Advanced Micro Devices, Inc., L017D70VC Datasheet - Page 16
L017D70VC
Manufacturer Part Number
L017D70VC
Description
16 Megabit (2 M x 8-bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory
Manufacturer
Advanced Micro Devices, Inc.
Datasheet
1.L017D70VC.pdf
(48 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
18
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
Figure 2. Temporary Sector Unprotect Operation
again.
Unprotect Completed
Program Operations
Temporary Sector
Perform Erase or
RESET# = V
RESET# = V
(Note 1)
(Note 2)
START
ID
IH
Am29LV017D
against inadvertent writes (refer to Table 8 for com-
mand definitions). In addition, the following hardware
data protection measures prevent accidental erasure
or programming, which might otherwise be caused by
spurious system level signals during V
power-down transitions, or from system noise.
Low V
When V
cept any write cycles. This protects data during V
power-up and power-down. The command register and
all internal program/erase circuits are disabled, and the
device resets. Subsequent writes are ignored until V
is greater than V
proper signals to the control pins to prevent uninten-
tional writes when V
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE# or
WE# do not initiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE#
= V
cle, CE# and WE# must be a logical zero while OE#
is a logical one.
Power-Up Write Inhibit
If WE# = CE# = V
up, the device does not accept commands on the
rising edge of WE#. The internal state machine is
a u t o m a ti c a l l y r e s e t to r e a d i n g a r ray d at a o n
power-up.
IL
, CE# = V
CC
CC
Write Inhibit
is less than V
IH
or WE# = V
LKO
IL
CC
. The system must provide the
and OE# = V
is greater than V
LKO
, the device does not ac-
IH
. To initiate a write cy-
IH
CC
LKO
during power
power-up and
.
CC
CC