MAXQ2000 Maxim, MAXQ2000 Datasheet - Page 3

• Manufacturer Part Number: MAXQ2000
• Description: The MAXQ2000 microcontroller is a low-power, 16-bit device that incorporates a liquid-crystal display (LCD) interface that can drive up to 100 (-RBX/-RBX+) or 132 (-RAX/-RAX+/-RFX/-RFX+) segments
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
Input High Voltage:
HFIN and 32KIN
Input High Voltage:
P6.4–P6.5 and P7.0–P7.1
Input High Voltage:
All Other Pins
Input Low Voltage:
HFIN and 32KIN
Input Low Voltage:
All Other Pins
Output High Voltage:
P6.4–P6.5 and P7.0–P7.1
Output High Voltage:
All Other Pins
Output Low Voltage for
All Other Pins
Output Low Voltage for
P6.4–P6.5 and P7.0–P7.1
Input Leakage Current
Input Pullup Current
LCD INTERFACE
LCD Reference Voltage
LCD Bias Voltage 1
LCD Bias Voltage 2
LCD Adjustment Voltage
LCD Bias Resistor
LCD Adjustment Resistor
LCD Segment Voltage
DD
= V
PARAMETER
DD(MIN)
to V
DD(MAX)
, V
SYMBOL
DDIO
V
R
V
V
V
V
R
V
V
V
V
SEGxx
V
V
V
V
V
LCD1
LCD2
LADJ
OH1
OH2
I
OL1
OL2
LCD
ADJ
LCD
IH1
IH2
IH3
I
IL1
IL2
IP
L
= 2.7V to 3.6V, T
_____________________________________________________________________
Low-Power LCD Microcontroller
SVS on, V
SVS on; I
I
I
I
Internal pullup disabled
Internal pullup enabled
1/3 bias
1/3 bias
Guaranteed by design
LRA4:LRA0 = 11111b
When segment is driven at V
V
guaranteed by design
When segment is driven at V
V
guaranteed by design
When segment is driven at V
V
guaranteed by design
When segment is driven at V
V
guaranteed by design
OH(MAX)
OL
OL
LCD
LCD1
LCD2
ADJ
= 1.0mA; V
= 1.4mA; V
= 3V; I
= 0V; I
= 2V; I
= 1V; I
A
OH(MAX)
LCD
= 0.75mA; V
= -40°C to +85°C.) (Note 1)
SEGxx
SEGxx
SEGxx
SEGxx
= 3.3V
CONDITIONS
DDIO
DDIO
= 0.75mA; V
= -3μA;
= 3μA;
= -3μA;
= -3μA;
= 1.8V
= 2.7V
DDIO
=1.8V
LCD
LCD1
LCD2
ADJ
LCD
level;
level;
level;
level;
= 2.7V
V
V
V
V
V
V
V
0.8 x
0.8 x
V
0.8 x
GND
GND
V
DDIO
LCD1
LCD2
-100
0.02
0.02
0.02
MIN
DDIO
DDIO
LCD
0.2
0.2
-20
2.7
LCD
LCD
ADJ
0
0
V
V
0
ADJ
ADJ
-
-
-
-
-
+ 2/3 (V
+ 1/3 (V
TYP
100
200
3.3
LCD
LCD
- V
- V
ADJ
ADJ
V
V
V
V
V
V
+100
MAX
0.2 x
0.2 x
0.4 x
V
V
V
DDIO
DDIO
DDIO
DDIO
0.2
0.2
3.6
LCD1
LCD2
0.1
LCD
LCD
LCD
-5
)
)
UNITS
k
k
nA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
3