ml2258 Microsemi Corporation, ml2258 Datasheet - Page 2

• Manufacturer Part Number: ml2258
• Description: Compatible 8-bit Converter With 8-channel Multiplexer
• Manufacturer: Microsemi Corporation

ML2258
PIN CONFIGURATION
PIN DESCRIPTION
2
PIN# NAME
10 CLK
12 +V
11 V
1
2
3
4
5
6
7
8
9
IN3
IN4
IN5
IN6
IN7
START
EOC
DB3
OE
CC
REF
START
+V
GND
EOC
DB3
DB1
CLK
V
IN3
IN4
IN5
IN6
IN7
REF
OE
CC
FUNCTION
Analog input 3.
Analog input 4.
Analog input 5.
Analog input 6.
Analog input 7.
Start of conversion. Active high digital
input pulse initiates conversion.
End of conversion. This output goes
low after a START pulse occurs, stays
low for the entire A/D conversion, and
goes high after conversion is
completed. Data on DB0–DB7 is valid
on rising edge of EOC and stays valid
until next EOC rising edge.
Data output 3.
Output enable input. When OE = 0,
DB0–DB7 are in high impedance
state; OE = 1, DB0–DB7 are active
outputs.
Clock. Clock input provides timing for
A/D converter, S/H, and digital
interface.
Positive supply. 5V ± 10%.
Positive reference voltage.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
28-Pin DIP (P28)
ML2258
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
IN2
IN1
IN0
ADDR0
ADDR1
ADDR2
ALE
DB7
DB6
DB5
DB4
DB0
–V
DB2
REF
PIN# NAME
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
DB1
DB2
–V
DB0
DB4
DB5
DB6
DB7
ALE
ADDR0
ADDR1
ADDR2
IN0
IN1
IN2
START
EOC
DB3
REF
CLK
V
IN7
OE
CC
5
6
7
8
9
10
11
12
4
FUNCTION
Ground. 0V, all analog and digital
inputs or outputs are reference to this
point.
Data output 1.
Data output 2.
Negative reference voltage.
Data output 0.
Data output 4.
Data output 5.
Data output 6.
Data output 7.
Address latch enable. Input to latch in
the digital address (ADDR2–0) on the
rising edge of the multiplexer.
Address input 0 to multiplexer. Digital
input for selecting analog input.
Address input 1 to multiplexer. Digital
input for selecting analog input.
Address input 2 to multiplexer. Digital
input for selecting analog input.
Analog input 0.
Analog input 1.
Analog input 2.
28-Pin PCC (Q28)
13 14
3
ML2258
2
TOP VIEW
15
1
28
16
27
17
26
18
25
24
23
22
21
20
19
ADDR0
ADDR1
ADDR2
ALE
DB7
DB6
DB5