Texas Instruments MSP430G2001IN14

Overview

MSP430G2001IN14 from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller in a 14-pin PDIP package, featuring 512 B flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, and 10 general-purpose I/O pins. It operates from 1.8 V to 3.6 V and supports five low-power modes, enabling battery-powered sensor nodes and simple control systems requiring sub-1 µs wake-up.

For engineers reviewing the MSP430G2001IN14 datasheet, MSP430G2001IN14 pinout, MSP430G2001IN14 application, or MSP430G2001IN14 equivalent, this device serves as a cost-optimized entry-level MCU for analog-sensing and timing-critical embedded functions where flash size, standby current (0.1 µA), and Spy-Bi-Wire programmability are key selection criteria.

Technical Context

The MSP430G2001IN14 implements a 16-bit RISC CPU with constant generators and 16 general-purpose registers, executing instructions in 62.5 ns at 16 MHz. Its clock system integrates a digitally controlled oscillator (DCO), internal low-frequency oscillator (VLO), and external crystal support (32 kHz) - all configurable via BCSCTL registers.

It includes a brownout detector, watchdog timer (WDT+), and on-chip emulation logic with Spy-Bi-Wire interface. Unlike MSP430G2x11 variants, it lacks Comparator_A+; its peripheral set is limited to Timer_A2, digital I/O (P1.0–P1.7, P2.6–P2.7), and basic clock modules - making it suitable for deterministic timing and minimal analog interface tasks.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual-inline package (PDIP), N suffix, 0.300-inch body width, through-hole mounting compatible with legacy prototyping and industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MSP430G2101IN14, the MSP430G2001IN14 offers lower memory cost and smaller code footprint for fixed-function designs; compared with MSP430G2001IPW14, it provides through-hole compatibility for prototyping and repair while maintaining full functional equivalence.

Availability

MSP430G2001IN14 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial control panels, and energy harvesting endpoints requiring stable component supply and long-term manufacturability.

Supply support for MSP430G2001IN14 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with decades of MCU innovation.

The MSP430G2xx family targets cost-sensitive, battery-operated applications demanding ultralow power, integrated peripherals, and rapid development - exemplified by the MSP430G2001IN14's optimized balance of flash, I/O, and power efficiency.

FAQ

What is the maximum operating frequency of the MSP430G2001IN14?

The MSP430G2001IN14 supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ± 10%. At 2.7 V, the limit drops to 12 MHz, and at 1.8 V, it is 6 MHz. These ratings are defined in the Recommended Operating Conditions table of the SLAS695I datasheet and reflect guaranteed timing margins for reliable CPU and peripheral operation. The DCO is factory-calibrated for 1 MHz, 8 MHz, 12 MHz, and 16 MHz points.

Does the MSP430G2001IN14 include an analog comparator?

No, the MSP430G2001IN14 does not include Comparator_A+. This capability is exclusive to the MSP430G2x11 series (e.g., MSP430G2111IN14). The MSP430G2001IN14 belongs to the G2x01 family, which omits the comparator module entirely - confirmed by Table 1 (no Comp_A+ channel listed) and the functional block diagram in the SLAS695I datasheet. Designers requiring analog threshold detection must add external circuitry or select a G2x11 variant.

What debug interface does the MSP430G2001IN14 support?

The MSP430G2001IN14 supports the Spy-Bi-Wire (SBW) interface using pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This two-wire protocol replaces standard JTAG and is fully compatible with TI's MSP-FET and LaunchPad debuggers. It enables full flash programming, breakpoint debugging, and real-time register inspection without requiring four dedicated JTAG pins - a key advantage for pin-constrained designs.

Can the MSP430G2001IN14 operate from a 1.8 V supply during flash programming?

No. Flash programming or erasure on the MSP430G2001IN14 requires a minimum VCC of 2.2 V, as specified in the Recommended Operating Conditions table. While the device executes code down to 1.8 V, the flash controller needs higher voltage to tunnel charge into the memory cells. Attempting programming below 2.2 V may result in incomplete writes or corrupted flash contents - always verify supply stability and level before initiating BSL or Spy-Bi-Wire programming sequences.

How many I/O pins does the MSP430G2001IN14 provide?

The MSP430G2001IN14 provides 10 usable I/O pins: eight bits on Port 1 (P1.0–P1.7) and two bits on Port 2 (P2.6 and P2.7). This count is explicitly stated in the device description and confirmed in Table 1 of the SLAS695I datasheet. Pins XIN/P2.6 and XOUT/P2.7 are dual-function - they serve as crystal connections by default but become general-purpose I/O when the oscillator is disabled or bypassed via BCSCTL registers.