LH28F020SU-N
2M (256K × 8) Flash Memory
32-PIN TSOP
TOP VIEW
FEATURES
• 256K × 8 Bit Configuration
A11
A9
1
32
31
30
OE
A10
CE
• 5 V Write/Erase Operation (5 V V )
PP
2
3
– No Requirement for DC/DC Converter to
A8
Write Erase
A13
A14
4
5
29
28
27
26
25
24
DQ7
DQ6
DQ5
DQ4
DQ3
GND
• 80 ns Maximum Access Time
A17
WE
6
7
• 16 Independently Lockable Blocks (16K)
• 100,000 Erase Cycles per Block
8
VCC
VPP
A16
9
• Automated Byte Write/Block Erase
– Command User Interface
– Status Register
10
11
12
13
14
15
16
23
22
21
20
19
18
17
DQ2
DQ1
DQ0
A0
A15
A12
A7
• System Performance Enhancement
– Erase Suspend for Read
– Two-Byte Write
A6
A1
A5
A2
A4
– Full Chip Erase
A3
• Data Protection
28F020SUN80-1
– Hardware Erase/Write Lockout during
Power Transitions
Figure 1. TSOP Configuration
– Software Erase/Write Lockout
32-PIN SOP
TOP VIEW
• Independently Lockable for Write/Erase on
Each Block (Lock Block and Protect
Set/Reset)
VPP
A16
A15
1
2
3
32
31
30
VCC
WE
A17
• 5 µA (TYP.) I in CMOS Standby
CC
• State-of-the-Art 0.55 µm ETOX™ Flash
Technology
A12
A7
A6
A5
A4
A3
4
5
29
28
27
26
A14
A13
A8
6
7
• Packages
A9
– 32-Pin, 525 mil. SOP Package
– 32-Pin, 1.2 mm × 8 mm × 20 mm
TSOP (Type I) Package
8
25
24
A11
OE
9
A2
A1
10
11
12
13
14
15
16
23
A10
22
21
20
19
18
17
CE
A0
DQ7
DQ6
DQ5
DQ4
DQ3
DQ0
DQ1
DQ2
GND
28F020SUN80-20
Figure 2. SOP Configuration
1