MAXQ2010 Maxim, MAXQ2010 Datasheet - Page 16

• Manufacturer Part Number: MAXQ2010
• Description: The MAXQ2010 microcontroller is a low-power, 16-bit device that incorporates a high-performance, 12-bit, multichannel ADC and a liquid-crystal display (LCD) interface
• Manufacturer: Maxim

16-Bit Mixed-Signal Microcontroller
with LCD Interface
16
40, 63, 96
41, 66, 95
98, 99
78, 77
76, 75
74, 73
72, 71
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PIN
82
79
70
92
81
80
64
65
45
44
AN0, AN1
AN2, AN3
AN4, AN5
AN6, AN7
REGOUT
32KOUT
HFXOUT
AVREF
NAME
DGND
AGND
32KIN
HFXIN
DVDD
AVDD
V
V
RST
LCD1
LCD
Digital Supply Voltage
Digital Ground
Regulator Capacitor. These pins must be shorted together at the pins and then connected to
ground through a 1.0μF ceramic capacitor.
Analog Supply Voltage
Analog Ground
Analog Voltage Reference. When using an external reference source, this pin must be
connected to 1μF and 0.01μF filter capacitors in parallel. When using an internal reference
source, this pin must be connected to a 0.01μF capacitor.
Analog Input 0:1. This pair of analog inputs can function as two single-ended inputs or one
differential pair. When functioning in differential mode, AN0 is the positive input and AN1 is
the negative input.
Analog Input 2:3. This pair of analog inputs can function as two single-ended inputs or one
differential pair. When functioning in differential mode, AN2 is the positive input and AN3 is
the negative input.
Analog Input 4:5. This pair of analog inputs can function as two single-ended inputs or one
differential pair. When functioning in differential mode, AN4 is the positive input and AN5 is
the negative input.
Analog Input 6:7. This pair of analog inputs can function as two single-ended inputs or one
differential pair. When functioning in differential mode, AN6 is the positive input and AN7 is
the negative input.
Digital, Active-Low, Reset Input/Output. The CPU is held in reset when this pin is low and
begins executing from the reset vector when released. The pin includes pullup current source
and should be driven by an open-drain, external source capable of sinking in excess of 4mA.
This pin is driven low as an output when an internal reset condition occurs.
32kHz Crystal Input/Output. Connect an external 6pF, 32kHz watch crystal between 32KIN
and 32KOUT to generate the system clock. Alternatively, 32KIN is the input for an external
clock source when 32KOUT is disconnected.
High-Frequency Crystal Input. Connect an external crystal or resonator between HFXIN and
HFXOUT as the high-frequency system clock. Alternatively, HFXIN is the input for an external,
high-frequency clock source when HFXOUT is disconnected.
LCD Bias Control Voltage. Highest LCD drive voltage used with static bias. Connected to an
external source.
LCD Bias, Voltage 1. LCD drive voltage used with 1/2 and 1/3 LCD bias. An internal resistor-
divider sets the voltage. External resistors and capacitors can be used to change the LCD
voltage or drive capability at this pin.
ANALOG MEASUREMENT PINS
POWER PINS
CLOCK PINS
RESET PIN
LCD PINS
FUNCTION
Pin Description