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W49V002FA Datasheet Preview

W49V002FA Datasheet

256K x 8 CMOS FLASH MEMORY

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W49V002FA
256K × 8 CMOS FLASH MEMORY
WITH FWH INTERFACE
GENERAL DESCRIPTION
The W49V002FA 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 W49V002FA results in fast program/erase operations
with extremely low current consumption. This device can operate at two modes, Programmer bus
interface mode and FWH bus interface mode. As in the Programmer interface mode, it acts like the
traditional flash but with a multiplexed address inputs. But in the FWH interface mode, this device
complies with the Intel FWH specification. 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.)
Fast read access time: Tkq 11 nS
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: 40 mA (typ. for FWH)
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, 32L STSOP
Publication Release Date: February 19, 2002
- 1 - Revision A2




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W49V002FA Datasheet Preview

W49V002FA Datasheet

256K x 8 CMOS FLASH MEMORY

No Preview Available !

W49V002FA
PIN CONFIGURATIONS
BLOCK DIAGRAM
A
AA
1
89
R0
^
F
G
P
^
F
G
P
#
R
E
#^
CF
^G
CP
IIS
VLI
2 3 END K4
v v T CD v v
4 3 2 1 32 31 30
A7(FGPI1)
A6(FGPI0)
A5(#WP)
A4(#TBL)
A3(ID3)
A2(ID2)
A1(ID1)
A0(ID0)
DQ0(FWH0)
5 29
6 28
7 27
8
32L
26
9 PLCC 25
10 24
11 23
12 22
13 21
14 15 16 17 18 19 20
IC
GND
NC
GND
VDD
#OE(#INIT)
#WE(FWH4)
NC
DQ7(RSV)
DDGDD DD
QQN QQ Q Q
12D 34 5 6
^^
^^ ^^
FF
FRRR
WW WS S S
HH
HV VV
12
3v v v
vv
v
NC
NC
NC
GND
IC
A10(FGPI4)
R/#C(CLK)
VDD
NC
#RESET
A9(FGPI3)
A8(FGPI2)
A7(FGPI1)
A6(FGPI0)
A5(#WP)
A4(#TBL)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32L
TSOP
32 #OE(#INIT)
31 #WE(FWH4)
30 NC
29 DQ7(RSV)
28 DQ6(RSV)
27 DQ5(RSV)
26 DQ4(RSV)
25 DQ3(FWH3)
24 GND
23 DQ2(FWH2)
22 DQ1(FWH1)
21 DQ0(FWH0)
20 A0(ID0)
19 A1(ID1)
18 A2(ID2)
17 A3(ID3)
#WP
#TBL
CLK
FWH[3:0]
FWH4
IC
Interface
#RESET
#INIT
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
SYM.
IC
#RESET
INTERFACE
PGM FWH
**
**
PIN NAME
Interface Mode Selection
Reset
#INIT
#TBL
#WP
CLK
FGPI[4:0]
ID[3:0]
FWH[3:0]
FWH4
R/#C
A[10:0]
DQ[7:0]
#OE
#WE
VDD
GND
RSV
NC
*
*
*
*
*
*
*
*
*
* Initialize
* Top Boot Block Lock
* Write Protect
* CLK Input
* General Purpose Inputs
* Identification Inputs They
Are Internal Pull Down to
VSS
* Address/Data Inputs
* FWH Cycle Initial
Row/Column Select
Address Inputs
Data Inputs/Outputs
Output Enable
Write Enable
* Power Supply
* Ground
* Reserved Pins
* No Connection
-2-


Part Number W49V002FA
Description 256K x 8 CMOS FLASH MEMORY
Maker Winbond
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