900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Winbond

W49V002A Datasheet Preview

W49V002A Datasheet

256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE

No Preview Available !

Preliminary W49V002A
256K x 8 CMOS FLASH MEMORY
WITH LPC INTERFACE
GENERAL DESCRIPTION
The W49V002A is a 2-megabit, 3.3-volt only CMOS flash memory organized as 256K × 8 bits. The
device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt VPP is
not required. The unique cell architecture of the W49V002A results in fast program/erase operations with
extremely low current consumption. This device can operate at two modes, Programmer bus interface
mode and LPC bus interface mode. As in the Programmer interface mode, it acts like the traditional
flash but with a multiplexed address inputs. But in the LPC interface mode, this device complies with the
Intel LPC specification 1.0. The device can also be programmed and erased using standard EPROM
programmers.
FEATURES
Single 3.3-volt operations:
3.3-volt Read
3.3-volt Erase
3.3-volt Program
Fast Program operation:
Byte-by-Byte programming: 50 µS (typ.)
Fast Erase operation: 150 mS (typ.)
Endurance: 10K cycles (typ.)
Twenty-year data retention
Hardware data protection
#TBL & #WP serve as hardware protection
One 16K bytes Boot Block with lockout
protection
Two 8K bytes Parameter Blocks
Four Main Memory Blocks (with 32K bytes, 64K
bytes, 64K bytes, 64K bytes each)
Low power consumption
Active current: 25 mA (typ.)
Standby current: 20 µA (typ.)
Automatic program and erase timing with
internal VPP generation
End of program or erase detection
Toggle bit
Data polling
Latched address and data
TTL compatible I/O
Available packages: 32L PLCC and 32L
STSOP
Publication Release Date: April 2001
- 1 - Revision A1




Winbond

W49V002A Datasheet Preview

W49V002A Datasheet

256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE

No Preview Available !

Preliminary W49V002A
PIN CONFIGURATIONS
NC
NC
NC
GND
MODE
A10(GPI4)
R/#C(CLK)
VDD
NC
#RESET
A9(GPI3)
A8(GPI2)
A7(GPI1)
A6(GPI0)
A5(#WP)
A4(#TBL)
A
8
^
G
P
I
2
v
A
9
^#
GR
PE
IS
V
3 END
v T CD
R
#
C
^
C
L
K
v
A
1
0
^
G
P
I
4
v
4 3 2 1 32 31 30
A7(GPI1)
A6(GPI0)
A5(#WP)
A4(#TBL)
A3(RSV)
A2(RSV)
A1(RSV)
A0(RSV)
DQ0(LAD0)
5 29
6 28
7 27
8
32-pin
26
9
PLCC
25
10 24
11 23
12 22
13 21
14 15 16 17 18 19 20
MODE
GND
NC
NC
VDD
#OE(#INIT)
#WE(#LFRAM)
NC
DQ7(RSV)
DD G D DD D
QQ N QQ Q Q
12D3 4 5 6
^^
^^ ^ ^
LL
L RR R
AA
A S SS
DD
D V VV
12
3vvv
vv
v
1
2
3
4
5
6
7
8 32-pin
9 TSOP
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
#OE(#INIT)
#WE(#LFRAM)
NC
DQ7(RSV)
DQ6(RSV)
DQ5(RSV)
DQ4(RSV)
DQ3(LAD3)
GND
DQ2(LAD2)
DQ1(LAD1)
DQ0(LAD0)
A0(RSV)
A1(RSV)
A2(RSV)
A3(RSV)
BLOCK DIAGRAM
#WP
#TBL
CLK
LAD[3:0]
#LFRAM
MODE
#INIT
#RESET
LPC
Interface
R/#C
A[10:0]
DQ[7:0]
#OE
#WE
Program-
mer
Interface
BOOT BLOCK
16K BYTES
PARAMETER
BLOCK1
8K BYTES
PARAMETER
BLOCK2
8K BYTES
MAIN MEMORY
BLOCK1
32K BYTES
MAIN MEMORY
BLOCK2
64K BYTES
MAIN MEMORY
BLOCK3
64K BYTES
MAIN MEMORY
BLOCK4
64K BYTES
3FFFF
3C000
3BFFF
3A000
39FFF
38000
37FFF
30000
2FFFF
20000
1FFFF
10000
0FFFF
00000
PIN DESCRIPTION
SYMB INTERFACE
PIN NAME
PGM LPC
MODE
*
* Interface Mode Selection
#RESET *
* Reset
#INIT
* Initialize
#TBL
* Top Boot Block Lock
#WP
* Write Protect
CLK * CLK Input
GPI[4:0]
* General Purpose
Inputs
LAD[3:0]
* Address/Data Inputs
#LFRAM
* LPC Cycle Initial
R/#C
*
Row/Column Select
A[10:0]
*
Address Inputs
DQ[7:0] *
Data Inputs/Outputs
#OE
*
Output Enable
#WE
*
Write Enable
VDD * * Power Supply
GND
*
* Ground
RSV * * Reserve Pins
NC * * No Connection
-2-


Part Number W49V002A
Description 256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE
Maker Winbond
PDF Download

W49V002A Datasheet PDF





Similar Datasheet

1 W49V002A 256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE
Winbond
2 W49V002FA 256K x 8 CMOS FLASH MEMORY
Winbond





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy