MAX6956
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port LED Display Driver and I/O Expander
22 ______________________________________________________________________________________
P5
P4
P7
P8
P6
P10
P9
P12
P13
P11
P15
P14
P17
P18
P16
P20
P19
a2
a1
c
d1
b
e
d2
g1
g2
f
i
h
k
l
j
dp
m
ca
P22
P23
P21
36
2
1
3
4
33
35
34
29
27
31
24
25
22
21
23
V+
GND
ISET
GND
AD0
AD1
SCL
P30
P29
P31
P27
P28
P25
P24
P26
32
30
26
5
7
9
28
6
8
11
10
12
14
15
13
17
16
19
20
18
SDA
MAX6956AAX
U1
39k
3V
3V
DATA
CLOCK
LED1
P5
P4
P7
P8
P6
P10
P9
P12
P13
P11
P15
P14
P17
P18
P16
P20
P19
a2
a1
c
d1
b
e
d2
g1
g2
f
i
h
k
l
j
dp
m
ca
P22
P23
P21
36
2
1
3
4
33
35
34
29
27
31
24
25
22
21
23
V+
GND
ISET
GND
AD0
AD1
SCL
P30
P29
P31
P27
P28
P25
P24
P26
32
30
26
5
7
9
28
6
8
11
10
12
14
15
13
17
16
19
20
18
SDA
MAX6956AAX
39k
3V
IRQ OUT
LED3
a2
a1
c
d1
b
e
d2
g1
g2
f
i
h
k
l
j
dp
m
ca
LED2
212
SW3
SW2SW1
U2
47nF
47nF
Typical Operating Circuit
MAX6956
MAX6956
P4
P31
P30
P6
P28
P27
P26
P29
P7
P5
P9
P13
P10
P14
P11
P15
P16
P17
P12
P8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
P21
P22
P23
P25
N.C.
P20
P19
P18
N.C.
GND
GND
GND
ISET
V+
AD1
SCL
SDA
N.C.
AD0
TQFN
P24
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port LED Display Driver and I/O Expander
______________________________________________________________________________________ 23
36
35
34
33
32
31
30
29
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V+
AD1
SCL
SDA
P4
P31
P26
P5
P30
P6
P29
P7
P28
P27
P17
P16
P15
P11
P14
P10
P13
P9
P12
P8
AD0
GND
GND
ISET
SSOP
TOP VIEW
MAX6956
22
21
20
19
15
16
17
18 P22
P25
P24
P23
P21
P20
P19
P18
Pin Configurations (continued)
Chip Information
PROCESS: CMOS
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages
. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
28 DIP N28+2
21-0043
28 SSOP A28+1
21-0056 90-0095
36 SSOP A36+4
21-0040 90-0098
40 Thin QFN-EP T4066+5
21-0141 90-0055
MAX6956
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port LED Display Driver and I/O Expander
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
24
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
2 11/03
3 3/09 Added exposed pad information and updated packaging information 1, 2, 5, 23
4 6/10 Added lead-free and automotive qualified parts to Ordering Information 1

MAX6956ATL+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
LED Display Drivers 2.5-5.5V 20/28Port LED Display Driver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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