AS29LV800 ANADIGICS Inc, AS29LV800 Datasheet - Page 3

• Manufacturer Part Number: AS29LV800
• Description: 3V 1M8/512K16 CMOS Flash EEPROM
• Manufacturer: ANADIGICS Inc

October 2000
Operating modes
L = Low (<V
In ×16 mode, BYTE = V
†
Mode definitions
Mode
ID read MFR code
ID read device code
Read
Standby
Output disable
Write
Enable sector protect
Sector unprotect
Temporary sector
unprotect
Verify sector protect
Verify sector unprotect
Hardware Reset
Verification of sector protect/unprotect during A9 = V
Item
ID MFR code,
device code
Read mode
Standby
Output disable Part remains powered up; but outputs disabled with OE pulled high.
Write
Enable
sector protect
Sector
unprotect
DID 11-40002-A. 10/19/00
IL
) = logic 0; H = High (>V
Description
Selected by A9 = V
When A0 is low (V
products. When A0 is high (V
Selected with CE = OE = L, WE = H. Data is valid in t
low and t
Selected with CE = H. Part is powered down, and I
RESET. If activated during an automated on-chip algorithm, the device completes the operation before
entering standby.
Selected with CE = WE = L, OE = H. Accomplish all Flash erasure and programming through the
command register. Contents of command register serve as inputs to the internal state machine. Address
latching occurs on the falling edge of WE or CE, whichever occurs later. Data latching occurs on the rising
edge WE or CE, whichever occurs first. Filters on WE prevent spurious noise events from appearing as
write commands.
Hardware protection circuitry implemented with external programming equipment causes the device to
disable program and erase operations for specified sectors. For in-system sector protection, refer to Sector
protect algorithm on page14.
Disables sector protection for all sectors using external programming equipment. All sectors must be
protected prior to sector unprotection. For in-system sector unprotection, refer to Sector unprotect
algorithm on page 14.
IH
†
. In ×8 mode, BYTE = V
†
OE
CE
L
L
L
H
L
L
L
L
X
L
L
X
after OE is low.
IH
) = logic 1; V
OE
L
L
L
X
H
H
V
V
X
L
L
X
IL
ID
) the output data = 52h, a unique Mfr. code for Alliance Semiconductor Flash
ID
ID
(9.5V–10.5V), CE = OE = A1 = A6 = L, enabling outputs.
ALLIANCE SEMICONDUCTOR
IL
with DQ8-DQ14 in high Z and DQ15 = A-1.
ID.
ID
WE
H
H
H
X
H
L
Pulse/L
Pulse/L
X
H
H
X
IH
= 10.0 ± 1.0V; X = don’t care.
), D
OUT
A0
L
H
A0
X
X
A0
L
L
X
L
L
X
represents the device code for the AS29LV800.
®
A1
L
L
A1
X
X
A1
H
H
X
H
H
X
CC
reduced to <1.0 µA when CE = V
ACC
time after addresses are stable, t
A6
L
L
A6
X
X
A6
L
H
X
L
H
X
A9
V
V
A9
X
X
A9
V
V
X
V
V
X
ID
ID
ID
ID
ID
ID
RESET
H
H
H
H
H
H
H
H
V
H
H
L
ID
CC
± 0.3V =
CE
AS29LV800
DQ
Code
Code
D
High Z
High Z
D
X
X
X
Code
Code
High Z
OUT
IN
after CE is
3