Texas Instruments MSP430F5632IPZR

Overview

MSP430F5632IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 256 KB flash, 16 KB + 2 KB RAM, USB 2.0 full-speed interface, dual 12-bit DACs, four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), and 74 GPIO pins in a 100-pin LQFP package. It targets battery-powered sensor systems and portable measurement devices requiring fast wake-up (3 µs) and RTC-backed operation.

For engineers reviewing the MSP430F5632IPZR datasheet, MSP430F5632IPZR pinout, MSP430F5632IPZR application, or MSP430F5632IPZR equivalent, key selection criteria include USB integration without external PHY, ultra-low standby current (1.8 µA at 3.0 V), 12-bit ADC channel count (0 external inputs), DAC presence, and LQFP-100 package compatibility with industrial layout constraints.

Technical Context

The MSP430F5632IPZR implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system including FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power architecture integrates a programmable LDO, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5).

Peripherals are tightly coupled via 6-channel DMA and share memory-mapped registers. The USB subsystem includes integrated PHY, 3.3-V/1.8-V power system, USB-PLL, and eight endpoints - all operating independently of main CPU execution. The absence of ADC12_A and DAC12_A channels (per Device Comparison Table 6-1) distinguishes it from higher-pin-count variants like MSP430F5638.

Key Specifications

Pinout & Package

LQFP-100 (PZ) package, 14 mm × 14 mm body size, 0.5 mm pitch, thermally enhanced with exposed thermal pad (per TI SLAS650G Section 11).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5632IPZR, MSP430F5637IPZR trades 64 KB flash for lower unit cost while retaining all peripherals, whereas MSP430F5636IPZR offers identical analog-less functionality at further reduced density - both maintain full pin and software compatibility for seamless design reuse.

Availability

MSP430F5632IPZR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB data loggers, and smart thermostat interfaces requiring stable component supply across long-lifecycle production programs.

Supply support for MSP430F5632IPZR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The MSP430F563x product line was designed for ultra-low-power mixed-signal applications demanding integrated USB, rich timer resources, and extended battery life - targeting portable instrumentation and intelligent edge nodes.

FAQ

What is the maximum system clock frequency supported by MSP430F5632IPZR?

The MSP430F5632IPZR supports a maximum system clock frequency of 20 MHz, achieved via its integrated FLL control loop using either internal DCO or external high-frequency crystal (XT2) up to 32 MHz. This frequency governs CPU execution speed, peripheral timing, and USB frame generation - all verified in TI's SLAS650G specification table 8.19 (DCO Frequency) and section 4 functional block diagrams.

Does MSP430F5632IPZR include an analog-to-digital converter (ADC)?

No, the MSP430F5632IPZR does not include an ADC12_A module. Per Table 6-1 (Device Comparison) in the official datasheet SLAS650G, the "ADC12_A (Ch)" column for MSP430F5632 shows "–", confirming zero external or internal ADC channels - unlike MSP430F5638 which lists "12 ext, 4 int". This omission is intentional for USB-focused control applications.

What USB speed and endpoint configuration does MSP430F5632IPZR support?

The MSP430F5632IPZR supports full-speed USB 2.0 (12 Mbps) with eight bidirectional endpoints (four IN, four OUT), integrated PHY, and dedicated 3.3-V/1.8-V USB power system. This configuration enables CDC, HID, and MSC class implementations without external components - confirmed in sections 1 (Features), 4 (Functional Block Diagram), and 8.50–8.52 of SLAS650G.

What is the standby current consumption of MSP430F5632IPZR in LPM3 mode?

In LPM3 (standby mode) with watchdog, crystal oscillator, and supply supervisor active plus full RAM retention, the MSP430F5632IPZR consumes 1.8 µA at 2.2 V and 2.1 µA at 3.0 V (typical values per section 1, Features). This ultra-low current enables multi-year operation on coin-cell or primary battery sources in always-listening applications.

Which package type and pin count does MSP430F5632IPZR use?

The MSP430F5632IPZR uses a 100-pin LQFP (PZ) package with 14 mm × 14 mm body size and 0.5 mm pitch, as documented in the Device Information table (page 1) and Package Option Addendum (Section 11) of SLAS650G. This package provides 74 usable I/O pins alongside power, ground, and debug signals.