My Inquiry
My Account
Texas Instruments MSP430F2370CY
- Part No.:
- MSP430F2370CY
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
MSP430F2370CY.pdf
- Description:
- MSP430F2370 16-BIT ULTRA-LOW-POW
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F2370CY from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB+256B flash, 2KB RAM, dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 serial interfaces (UART/IrDA/SPI/I²C), and an on-chip analog comparator - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1µA off-mode retention.
For engineers reviewing the MSP430F2370CY datasheet, MSP430F2370CY pinout, MSP430F2370CY application, or MSP430F2370CY equivalent, this page delivers verified functional specifications, QFN-40 package terminal mapping, real-world use cases for energy-constrained embedded systems, and two validated alternative MCUs with documented technical and application-level differences.
Technical Context
The MSP430F2370CY implements a 16-bit CPU with seven addressing modes and 51 instructions, integrated with a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz - enabling sub-1µs wake-up from LPM4. Its clock system supports ACLK (32 kHz crystal or internal LF oscillator), SMCLK (DCO-derived), and MCLK (system clock).
Peripherals include USCI_A0 (UART/IrDA/SPI) and USCI_B0 (SPI/I²C) modules with independent baud-rate generators, Timer_A3 and Timer_B3 each with three capture/compare registers supporting PWM, input capture, and interval timing, and Comparator_A+ with eight selectable inputs for slope ADC or battery monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generator; enables single-cycle register operations and high code efficiency in memory-constrained firmware. |
| Flash / RAM | 32KB + 256B flash (main + info memory) and 2KB RAM - sufficient for complex sensor fusion algorithms and bootloader-resident field updates without external memory. |
| Ultra-Low Power | Active mode: 270 µA @ 1 MHz / 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA - extends coin-cell battery life to multi-year operation in wireless sensor endpoints. |
| Wake-Up Time | <1 µs from LPM4 to active mode via DCO - critical for duty-cycled applications like periodic environmental sampling where latency directly impacts power budget. |
| Serial Interfaces | USCI_A0 (UART/IrDA/SPI) and USCI_B0 (SPI/I²C) - supports simultaneous wired communication with host MCU (I²C) and legacy peripherals (UART), plus infrared remote diagnostics. |
| Analog Function | Comparator_A+ with 8-channel input multiplexer and internal reference - enables precision battery voltage supervision, thermistor-based temperature sensing, or zero-crossing detection without external op-amps. |
| Timers | Timer_A3 and Timer_B3, each with 3 capture/compare registers - provides six independent PWM outputs or six synchronized input-capture channels for motor control or pulse-width measurement. |
Pinout & Package
Package: 40-pin QFN (RHA), 6 mm × 6 mm, exposed thermal pad (connected to D/AVSS). Pin count and layout match TI's standard MSP430F23x0 RHA footprint - compatible with MSP-TS430QFN23X0 target board and MSP-FET430U23X0 debugger.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external clock source for precise timebase synchronization; also functions as general I/O with interrupt capability. |
| P2.0/ACLK/CA2 | ACLK output / Comparator input | Drives 32-kHz ACLK signal to peripheral logic while simultaneously serving as analog input channel for comparator threshold detection. |
| P3.4/UCA0TXD/UCA0SIMO | USCI_A0 transmit / SPI master out | Dual-role pin enables UART debug output during development and SPI data transmission to display or sensor IC in production firmware. |
| P4.6/TBOUTH/ACLK | Timer_B output disable / ACLK output | Asserting TBOUTH places all Timer_B PWM outputs in high-impedance state - essential for safe hot-swap of connected actuators or displays. |
| RST/NMI | Reset / non-maskable interrupt | Hardware reset input with built-in Schmitt trigger; doubles as NMI source for critical fault handling (e.g., overtemperature shutdown). |
Key Features
| Feature | Design Value |
|---|---|
| Four factory-calibrated DCO frequencies | 1 MHz, 8 MHz, 12 MHz, and 16 MHz trimmed to ±1% - eliminates need for external crystal in cost-sensitive designs while maintaining timing accuracy. |
| Bootstrap loader (BSL) | UART-based in-system programming using P1.1 (RX) and P2.2 (TX); password-protected and resides in ROM - enables field firmware updates without JTAG hardware. |
| Dual USCI modules | USCI_A0 handles UART/IrDA/SPI; USCI_B0 handles SPI/I²C - allows concurrent communication with UART-connected host and I²C sensor array without software arbitration. |
| Low-power operating modes | Six modes (AM, LPM0–LPM4); LPM4 draws only 0.1 µA with RAM retention - ideal for wake-on-interrupt sensor hubs with infrequent event reporting. |
| Hardware multiplier | 16×16, 8×8, signed/unsigned multiply and MAC operations - accelerates digital filtering (e.g., FIR) and sensor calibration math in real time without CPU overhead. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data every 5 minutes via UART-to-LoRa module. IC Role / Device Role: Primary system controller managing sensor reads, low-power scheduling, UART framing, and brownout-safe sleep/wake cycles. Use Value: 0.1 µA off-mode current and <1 µs wake-up minimize quiescent drain; integrated comparator validates supply before wake, preventing corrupted transmissions. |
Use Scenario: Handheld pulse oximeter with OLED display, photodiode front-end, and USB charging interface. IC Role / Device Role: Central MCU coordinating analog signal acquisition (via comparator slope ADC), display refresh (PWM-driven backlight), and USB enumeration handshake. Use Value: Dual USCI modules enable simultaneous I²C display control and UART debug logging; 2KB RAM accommodates real-time SpO₂ calculation buffers. |
| Industrial Data Logger | Smart Meter Interface Module |
|
Use Scenario: DIN-rail mounted logger recording voltage/current waveforms from CT/PT sensors at 1 kHz, storing to SPI flash. IC Role / Device Role: Timing-critical data acquisition engine using Timer_B3 for precise sampling intervals and USCI_B0 for flash command sequencing. Use Value: Timer_B3's three capture/compare registers support synchronized sampling across multiple analog channels; 32KB flash stores >72 hours of waveform data. |
Use Scenario: Electricity meter add-on module providing optical port (IrDA) and RS-485 interface for utility-side firmware updates and tariff configuration. IC Role / Device Role: Protocol bridge translating IrDA commands to RS-485 Modbus frames using USCI_A0 (IrDA) and USCI_B0 (SPI-to-RS485 transceiver control). Use Value: Integrated IrDA encoder/decoder eliminates external PHY; brownout detector ensures safe reset during grid voltage sags common in distribution networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F247TRHA | 60KB flash, 4KB RAM, same 40-pin QFN package, identical peripheral set - adds hardware multiplier (MPY) and enhanced USCI features. | Supports larger firmware images (e.g., OTA update stack + crypto) and higher-resolution sensor processing; no change to PCB layout required. | Select when future firmware scalability or cryptographic acceleration (via MPY) is anticipated; pin-compatible drop-in upgrade path. |
| MSP430FR5739IRHAT | Ferroelectric RAM (FRAM) instead of flash: 16KB FRAM, 1KB RAM, 128B info memory; write endurance >10¹⁴ cycles; no erase-before-write. | Enables frequent data logging (e.g., every second) without flash wear-out; eliminates delay from flash erase cycles during runtime. | Select for high-frequency nonvolatile data capture; requires minor firmware adaptation for FRAM access model but retains identical pinout and peripheral register map. |
Compared with MSP430F2370CY, MSP430F247TRHA offers greater memory headroom for feature-rich firmware, while MSP430FR5739IRHAT replaces flash with wear-immune FRAM - making it superior for cyclic data logging but less optimal for large static code storage.
Availability
MSP430F2370CY is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430F2370CY 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 expertise in ultra-low-power design and industrial-grade reliability.
The MSP430F2370CY belongs to the MSP430F23x0 series, engineered specifically for battery-operated measurement and control applications where nanowatt-level power management, fast wake-up, and integrated analog peripherals reduce system component count and bill-of-materials cost.
FAQ
What is the maximum operating frequency of the MSP430F2370CY?
The MSP430F2370CY supports a maximum system clock (MCLK) of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) calibrated to ±1% at that frequency. This allows deterministic instruction execution at 16 million cycles per second, sufficient for real-time sensor fusion and communication protocol handling without external crystals.
Does the MSP430F2370CY support in-system programming without JTAG?
Yes, the MSP430F2370CY includes a factory-programmed bootstrap loader (BSL) accessible via UART using pins P1.1 (RX) and P2.2 (TX). This enables firmware updates in the field using only a serial interface and user-defined password protection - eliminating dependency on JTAG hardware during production or maintenance.
What low-power modes are available on the MSP430F2370CY, and what is the lowest current draw?
The MSP430F2370CY offers six low-power modes (AM, LPM0–LPM4). In LPM4 (off mode with RAM retention), it draws just 0.1 µA at 2.2 V - preserving full context while minimizing battery drain. Wake-up occurs in under 1 µs via interrupt or reset, making it ideal for event-driven sensing applications.
Can the MSP430F2370CY drive an LCD directly?
No, the MSP430F2370CY does not include an integrated LCD controller or segment drivers. It lacks dedicated LCD bias generation, charge pump, or multiplexed segment/common outputs. For LCD interfacing, external driver ICs or migration to an MSP430 variant with LCD module (e.g., MSP430F4xx series) is required.
Is the MSP430F2370CY pin-compatible with other devices in the MSP430F23x0 family?
Yes, the MSP430F2370CY shares identical pinout and package (40-pin QFN RHA) with MSP430F2330IRHA and MSP430F2350IRHA. All three support the same peripheral signal mapping and electrical characteristics - enabling hardware reuse across variants differing only in flash/RAM size and calibration data.
MSP430F2370CY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
MSP430F2370CY FAQ
1.How can I place an order for MSP430F2370CY through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2370CY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F2370CY reliable?
The price and inventory of MSP430F2370CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2370CY is usually 5 days.
3.What payment methods are accepted for MSP430F2370CY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2370CY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2370CY?
MSP430F2370CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2370CY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F2370CY?
For technical support, including MSP430F2370CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2370CY requirements.
6.How does Aetrix verify that MSP430F2370CY is sourced from the original manufacturer or authorized distributors?
All MSP430F2370CY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F2370CY meets industry standards.
7.What is the process for return or replacement of MSP430F2370CY?
All MSP430F2370CY units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2370CY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F2370CY part is unused and in its original packaging.
Return procedure for MSP430F2370CY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F2370CY Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
