MAX6957 MAXIM [Maxim Integrated Products], MAX6957 Datasheet - Page 3

• Manufacturer Part Number: MAX6957
• Description: 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.5V to 5.5V, T
TIMING CHARACTERISTICS (Figure 3)
(V+ = 2.5V to 5.5V, T
Note 1: All parameters tested at T
Note 2: Guaranteed by design.
Port Sink Current
Output Short-Circuit Current
Port Drive LED Sink Current,
Port Configured as LED Driver
Port Drive Logic Sink Current,
Port Configured as LED Driver
Input High-Voltage SCLK, DIN,
CS
Input Low-Voltage SCLK, DIN, CS
Input Leakage Current SCLK,
DIN, CS
Output High-Voltage DOUT
Output Low-Voltage DOUT
CLK Clock Period
CLK Pulse Width High
CLK Pulse Width Low
CS Fall to SCLK Rise Setup Time
CLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
Output Data Propagation Delay
Minimum CS Pulse High
28-Port LED Display Driver and I/O Expander
PARAMETER
PARAMETER
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
A
_______________________________________________________________________________________
= T
MIN
to T
MAX
A
SYMBOL
= +25°C. Specifications over temperature are guaranteed by design.
I
DIGIT_SC
SYMBOL
I
I
, unless otherwise noted.) (Note 1)
I
IH
OLSC
DIGIT
V
V
V
I
V
t
t
OL
t
OH
OL
t
CSW
, I
t
CSH
t
IH
t
t
CSS
t
IL
DO
CH
DH
CP
CL
DS
IL
A
V
Port configured output low, shorted to V+
V+ = 2.5V, V
current
V+ = 3.3V, V
current (Note 2)
V+ = 5.5V, V
current
V+ = 2.5V, V
current
V+ = 5.5V, V
current
V+ ≤ 3.3V
V+ > 3.3V
I
I
SOURCE
SINK
= T
PORT
C
LOAD
MIN
= 1.6mA
= 0.6V
to T
= 1.6mA
= 25pF
MAX
LED
LED
LED
OUT
OUT
CONDITIONS
, unless otherwise noted.) (Note 1)
= 2.3V at maximum LED
= 2.4V at maximum LED
= 2.4V at maximum LED
= 0.6V at maximum LED
= 0.6V at maximum LED
CONDITIONS
MIN
2.75
18.5
18.5
V+ -
38.4
MIN
-50
9.5
1.6
0.5
9.5
9.5
19
19
19
19
19
2
2
0
0
TYP
13.5
TYP
10
11
24
25
23
24
MAX
27.5
28.0
MAX
+50
0.6
0.4
18
20
18
30
28
21
UNITS
UNITS
mA
mA
mA
mA
nA
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
3