MAX7370 Maxim, MAX7370 Datasheet - Page 3

• Manufacturer Part Number: MAX7370
• Description: The MAX7370 I²C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with optional GPIO and PWM-controlled LED drivers
• Manufacturer: Maxim

with I
ELECTRICAL CHARACTERISTICS (continued)
(V
10mA Port Sink Current
COL7–COL4
20mA Port Sink Current
COL7–COL4
Input High Voltage
COL_, ROW_
Input Low Voltage
COL_, ROW_
Input Leakage Current
COL3–COL0, ROW_
Input Leakage Current
COL7–COL4
Input Capacitance
COL _, ROW_
Maximum Allowable Load Capacitance
for Keyscan Function
Output Low Voltage
COL_, ROW_
Output High Voltage
COL3–COL0, ROW_
Output Logic-Low Voltage
(INT)
PWM Frequency
SERIAL-INTERFACE SPECIFICATIONS
Input High Voltage
SDA, SCL, AD0
Input Low Voltage
SDA, SCL, AD0
Input Leakage Current
SDA, SCL, AD0
Output Logic-Low Voltage
SDA
Input Capacitance
SDA, SCL, AD0
CC
8 x 8 Key-Switch Controller and LED Driver/GPIOs
= 1.62V to 3.6V, T
PARAMETER
2
C Interface and High Level of ESD Protection
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A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
SYMBOL
I
I
I
LEAKAGE
LEAKAGE
LEAKAGE
f
V
V
V
PWM
V
C
C
V
V
I
I
V
V
OL
OL
OH
OL
OL
OL
IH
IN
IH
IN
IL
IL
V
V
V
V
V
reference logic level setting
Input voltage = V
Input voltage = 5V
N keys pressed simultaneously
V
V
V
V
I
Derived from oscillator clock
Input voltage = 5.5V or V
I
(Notes 4, 5)
SINK
SINK
OL
OL
OL
OL
S
CC
CC
CC
CC
= V
= 1V
= 0.5V
= 1V
= 0.5V
= 1.62V and I
= 1.62V and I
= 1.62V and I
= 1.62V and I
= 6mA
= 6mA
CC
or V
CONDITIONS
LA
depending on
CC
T
V
V
T
T
V
V
T
SINK
SINK
SOURCE
SOURCE
A
A
A
A
CC
CC
CC
CC
or V
= +25NC
= +25NC
= +25NC
= +25NC
= 3.3V
= 3.6V,
= 3.3V
= 3.6V,
= 2.5mA
= 5mA
GND
GND
= 2.5mA
= 5mA
CC
0.7 O V
0.7 O V
18.13
18.47
V
V
9.04
MIN
120
250
8.6
CC
CC
= 3.3V, T
-2
-1
-1
-
-
CC
S
19.05
V
V
A
TYP
500
500
9.5
CC
CC
10
20
20
50
80
40
70
= +25NC.) (Notes 2, 3)
MAX7370
-
-
0.3 O V
0.3 O V
10.96
21.52
21.34
MAX
11.4
100
250
0.6
0.6
+2
+1
+1
10
CC
S
UNITS
mA
mA
mV
mV
FA
FA
pF
pF
Hz
FA
pF
V
V
V
V
V
V