MAXQ3120 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAXQ3120

High-Precision ADC Mixed-Signal Microcontroller

Maxim Integrated 

High-Precision ADC

Mixed-Signal Microcontroller

Type C port pins have Schmitt Trigger receivers and

full CMOS output drivers, and can support alternate

functions. The pin is either tri-stated or a weak pullup

when defined as an input, dependent on the state of

the corresponding bit in the output register.

Type D port pins have Schmitt Trigger receivers and

full CMOS output drivers, and can support alternate

functions. The pin is either tri-stated or a weak pullup

when defined as an input, dependent on the state of

the corresponding bit in the output register. All Type D

pins also have interrupt capability.

High-Speed Hardware Multiplier

The hardware multiplier module performs high-speed

multiply, square, and accumulate operations, and can

complete a 16-bit x 16-bit multiply-and-accumulate

operation in a single cycle. The hardware multiplier

consists of two 16-bit parallel-load operand registers

(MA, MB), a 40-bit accumulator that is formed by three

16-bit parallel registers (MC2, MC1, and MC0), and a

status/control register (MCNT). Loading the registers

can automatically initiate the operation, saving time on

repetitive calculations. The accumulate function of the

hardware multiplier is an essential element of digital fil-

tering, signal processing, and proportional/integral/

derivative (PID) algorithm-based control systems.

The hardware multiplier module supports the following

operations:

• Multiply unsigned (16 bit x 16 bit)

• Multiply signed (16 bit x 16 bit)

• Multiply-accumulate unsigned (16 bit x 16 bit)

• Multiply-accumulate signed (16 bit x 16 bit)

• Square unsigned (16 bit)

• Square signed (16 bit)

• Square-accumulate unsigned (16 bit)

• Square-accumulate signed (16 bit)

VDDIO

PD.x

SF DIRECTION

SF ENABLE

PO.x

SF OUTPUT

WEAK

VDDIO

MAXQ3120

I/O PAD

PI.x OR SF INPUT

FLAG

INTERRUPT

FLAG

DETECT

CIRCUIT

EIES.x

TYPE D PORT ONLY

Figure 3. Type C/D Port Pin Schematic

PORT PIN

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