MAX6957ATL+ Maxim Integrated Products, MAX6957ATL+ Datasheet - Page 21
![IC DRVR DSPL LED 40-TQFN](/photos/6/65/66502/40-qfn_pkg_sml.jpg)
MAX6957ATL+
Manufacturer Part Number
MAX6957ATL+
Description
IC DRVR DSPL LED 40-TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6957ANI.pdf
(25 pages)
Specifications of MAX6957ATL+
Display Type
LED
Configuration
7, 16, 20 Segment
Interface
4-Wire Serial
Current - Supply
180µA
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
40-TQFN Exposed Pad
Number Of Segments
28
Low Level Output Current
18 mA
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Supply Current
230 uA
Maximum Power Dissipation
2963 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Digits Or Characters
-
Lead Free Status / Rohs Status
Details
28-Port LED Display Driver and I/O Expander
4-WIRE CLOCK IN
4-WIRE DATA IN
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
4-WIRE DATA OUT
CHIP SELECT
IRQ OUT
______________________________________________________________________________________
SW1
SW2
1
47nF
47nF
SW3
2
2
3V
3V
39kΩ
39kΩ
36
34
33
35
31
29
27
25
24
23
22
21
36
34
33
35
31
29
27
25
24
23
22
21
3
2
1
4
3
2
1
4
V+
GND
GND
ISET
DIN
SCLK
CS
DOUT
P31
P30
P29
P28
P27
P26
P25
P24
V+
GND
GND
ISET
DIN
SCLK
CS
DOUT
P31
P30
P29
P28
P27
P26
P25
P24
MAX6957AAX
MAX6957AAX
U1
U2
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P4
P5
P6
P7
P8
P9
P4
P5
P6
P7
P8
P9
32
30
28
26
5
7
9
11
6
8
10
12
13
14
15
16
17
18
19
20
32
30
28
26
5
7
9
11
6
8
10
12
13
14
15
16
17
18
19
20
Typical Operating Circuit
3V
a1
a2
b
c
d1
d2
e
f
g1
g2
h
i
j
k
l
m
dp
ca
a1
a2
b
c
d1
d2
e
f
g1
g2
h
i
j
k
l
m
dp
ca
a1
a2
b
c
d1
d2
e
f
g1
g2
h
i
j
k
l
m
dp
ca
LED1
LED2
LED3
21