MAXQ2000-QBX Maxim Integrated Products, MAXQ2000-QBX Datasheet - Page 8

• Manufacturer Part Number: MAXQ2000-QBX
• Description: Microcontrollers (MCU) Low-Power LCD MCU
• Manufacturer: Maxim Integrated Products

Specifications of MAXQ2000-QBX

• Processor Series: MAXQ2000
• Core: RISC
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 2 KB
• Interface Type: 1-Wire, SPI, JTAG, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 50
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 2.75 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-56
• Development Tools By Supplier: MAXQ2000-KIT
• Minimum Operating Temperature: - 40 C

Low-Power LCD Microcontroller
8
TQFN-EP QFN-EP
9–12
1–8
29
30
_____________________________________________________________________
68; 1–5
66, 67,
6–13
PIN
34
35
11, 14–
97, 98,
LQFP
9, 10,
3–8
52
53
18
32KOUT
SEG16–
NAME
SEG8–
SEG15
SEG23
32KIN
P1.0–
P2.0–
P1.7;
P2.7;
32kHz Crystal Input. Connect an external, 32kHz watch crystal between 32KIN and
32KOUT as the low-frequency system clock. Alternatively, 32KIN is the input for an
external, 32kHz clock source when 32KOUT is floating.
32kHz Crystal Output/Input. Connect an external, 32kHz watch crystal between
32KIN and 32KOUT as the low-frequency system clock. Alternatively, float 32KOUT
when an external, 32kHz clock source is connected to the 32KIN pin.
General-Purpose, 8-Bit, Digital, I/O, Type-C Port; LCD Segment-Driver Output.
These port pins function as both bidirectional I/O pins and LCD segment-drive
outputs. All port pins are defaulted as input with weak pullup after a reset. Enabling
a pin’s LCD function disables the general-purpose I/O on the pin. Setting the PCF1
bit enables the LCD for all pins on this port and disables the general-purpose I/O
function on all pins.
General-Purpose, 8-Bit, Digital, I/O, Type-C Port; LCD Segment-Driver Output.
These port pins function as both bidirectional I/O pins and LCD segment-drive
outputs. All port pins are defaulted as input with weak pullup after a reset. Enabling
a pin’s LCD function disables the general-purpose I/O on the pin. Setting the PCF2
bit enables the LCD for all pins on this port and disables the general-purpose I/O
function on all pins.
56-PIN
56-PIN
10
11
12
—
—
—
—
1
2
3
4
5
6
7
8
9
68-PIN
68-PIN
66
67
68
10
11
12
13
1
2
3
4
5
6
7
8
9
100-PIN
100-PIN
97
98
10
11
14
15
16
17
18
3
4
5
6
7
8
9
PORT
PORT
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
Pin Description (continued)
FUNCTION
56-PIN
SEG16
SEG17
SEG18
SEG19
ALTERNATE FUNCTIONS
ALTERNATE FUNCTION
—
—
—
—
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG8
SEG9
68-PIN
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23