Datasheet

MAX6953
2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5
✕
7
Matrix LED Display Driver
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical operating circuit, V+ = 3.0V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Segment Current Slew Rate ∆I
SEG
/∆tT
A
= +25
o
C
12.5
mA/µs
Segment Drive Current
Matching (Within IC)
∆I
SEG
T
A
= +25°C 4 %
LOGIC INPUTS
Input High Voltage
SDA, SCL, AD0, AD1
V
IH
0.7 x
V+
V
Input Low Voltage
SDA, SCL, AD0, AD1
V
IL
0.3
✕
V+
V
Input Hysteresis
SDA, SCL, AD0, AD1
V
HYST
0.05
✕
V+
V
Input Leakage Current I
IL
, I
IH
-2 2 µA
Input Capacitance C
I
10 pF
DIGITAL OUTPUT
SDA Output Low Voltage V
OLSDA
I
SINK
= 4mA 0.4 V
BLINK Output Low Voltage V
OLBK
I
SINK
= 1.6mA 0.4 V
MAX6953 TIMING CHARACTERISTICS
(V+ = 2.7V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Serial Clock Frequency f
SCL
400
kHz
Bus Free Time Between a STOP
and a START Condition
t
BUF
1.3 µs
Hold Time (Repeated) START
Condition
t
HD
,
STA
0.6 µs
Repeated START Condition
Setup Time
t
SU
,
STA
0.6 µs
STOP Condition Setup Time
t
SU
,
STO
0.6 µs
Data Hold Time
t
HD
,
DAT
(Note 3) 0.9 µs
Data Setup Time
t
SU
,
DAT
100
ns
SCL Clock Low Period t
LOW
1.3 µs
SCL Clock High Period t
HIGH
0.6 µs
Rise Time of Both SDA and SCL
Signals, Receiving
t
R
(Notes 2, 4)
20 +
0.1C
B
300
ns
Fall Time of Both SDA and SCL
Signals, Receiving
t
F
(Notes 2, 4)
20 +
0.1C
B
300
ns