LH53259 SHARP [Sharp Electrionic Components], LH53259 Datasheet - Page 2

• Manufacturer Part Number: LH53259
• Description: CMOS 256K (32K x 8) MROM
• Manufacturer: SHARP [Sharp Electrionic Components]

PIN DESCRIPTION
LH53259
NOTE:
1. The active level of OE/OE is mask-programmable.
TRUTH TABLE
NOTE:
1. X = H or L
2
A
NOTE: Pin numbers apply to the 28-pin DIP or SOP.
D
SIGNAL
OE/OE
0
0
CE
CE
H
L
– A
– D
OE/OE
14
7
A
A
A
A
A
CE
A
A
A
A
A
A
A
A
A
A
14
13
12
10
11
4
3
2
9
8
7
6
5
1
0
OE/OE
Address input
Data output
Chip enable input
Output enable input
27
26
23
25
10
20
L/H
H/L
21
24
22
3
2
4
5
6
7
8
9
X
PIN NAME
Non selected
Selected
MODE
BUFFER
BUFFER
CE
OE
Figure 3. LH53259 Block Diagram
High-Z
D
D
V
GENERATOR
28
0
CC
OUT
- D
NOTE
TIMING
GND
7
1
14
SUPPLY CURRENT
Operating
Standby
ABSOLUTE MAXIMUM RATINGS
Supply voltage
11
D
0
SIGNAL
GND
V
NC
CC
12
D
PARAMETER
1
COLUMN SELECTOR
13
D
SENSE AMPLIFIER
OUTPUT BUFFER
2
NOTE
Power supply (+5 V)
Ground
No connection
1
(32,768 x 8)
MEMORY
MATRIX
15
D
3
16
D
PIN NAME
4
17
D
SYMBOL
5
V
CC
18
D
6
CMOS 256K MROM
D
19
7
–0.3 to +7.0
RATING
NOTE
53259-2
UNIT
V