MAX6955 Maxim, MAX6955 Datasheet - Page 3

• Manufacturer Part Number: MAX6955
• Description: 2-Wire Interfaced / 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
• Manufacturer: Maxim

DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.7V to 5.5V, T
Segment Drive Source Current
Segment Current Slew Rate
Segment Drive Current Matching
LOGIC INPUTS AND OUTPUTS
Input High Voltage
SDA, SCL, AD0, AD1
Input Low Voltage
SDA, SCL, AD0, AD1
Input Leakage Current
SDA, SCL, AD0, AD1, OSC, P0,
P1, P2, P3, P4
SDA Output Low Voltage
Port Logic-High Input Voltage
P0, P1, P2, P3, P4
Port Logic-Low Input Voltage
P0, P1, P2, P3, P4
Port Hysteresis Voltage
P0, P1, P2, P3, P4
Port Input Pullup Current from V+
Port Output Low Voltage
Blink Output Low Voltage
OSC_OUT Output High Voltage
OSC_OUT Output Low Voltage
PARAMETER
2-Wire Interfaced, 2.7V to 5.5V LED Display
_______________________________________________________________________________________
Driver with I/O Expander and Key Scan
SYMBOL
V
∆I
V
V
V
I
OHOSC
∆I
OLSDA
V
OLOSC
IH
I
V
V
SEG
∆V
I
OLBK
SEG
V
V
IPU
OLP
IHP
SEG
ILP
, I
IH
IL
IP
IL
/∆t
A
= T
V
V+ = 3.3V
V
V+ = 2.7V
T
T
I
P0 to P3 configured as key-scan inputs,
V+ = 3.3V
I
I
I
I
SINK
SINK
SINK
SOURCE
SINK
A
A
LED
LED
MIN
= +25°C, V+ = 3.3V
= +25°C, V+ = 3.3V
= 1.6mA
= 2.2V,
= 2.2V,
= 6mA
= 8mA
= 0.6mA
to T
= 1.6mA
MAX
, unless otherwise noted.) (Note 1)
CONDITIONS
T
A
= +25°C
0.7 x
0.7 x
V+ -
MIN
-32
0.4
V+
V+
-1
0.03 x
TYP
-40
V+
0.3
0.1
75
11
5
MAX
0.3 x
0.3 x
-48
0.4
0.5
0.3
0.4
V+
+1
V+
UNITS
mA/µs
mA
µA
µA
%
V
V
V
V
V
V
V
V
V
V
3