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Microchip Technology ATBTLC1000A-MU-T
- Part No.:
- ATBTLC1000A-MU-T
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ATBTLC1000A-MU-T.pdf
- Description:
- IC RF TXRX+MCU BLE 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,626
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Product details
Overview
ATBTLC1000A-MU-T from Microchip Technology is an ultra-low power Bluetooth 5.0 System-in-Package (SiP) integrating ARM Cortex-M0 MCU, BLE transceiver, modem, MAC, PA, T/R switch, and PMU. It operates as a BLE link controller and data pump with external host MCU, supports -95 dBm receiver sensitivity, +3.5 dBm TX output, and achieves 2.01 µA sleep current for battery-powered IoT sensor nodes.
For engineers reviewing the ATBTLC1000A-MU-T datasheet, ATBTLC1000A-MU-T pinout, ATBTLC1000A-MU-T application, or ATBTLC1000A-MU-T equivalent, key selection criteria include its QFN-32 4×4 mm package, UART-based host interface requiring only two GPIOs and one interrupt line, integrated DC/DC converter supporting 1.8–4.3 V battery input, and certified BLE 5.0 stack with GATT/GAP/ATT protocols preloaded in ROM.
Technical Context
The ATBTLC1000A-MU-T implements a dual-domain power architecture: always-on logic (AO_GPIO_0, RTC oscillator) coexists with switchable digital domains managed by CHIP_EN and software-controlled state transitions (Ultra_Low_Power, BLE_ON_Transmit/Receive). Its BLE subsystem uses a 26 MHz crystal-referenced PLL with integrated RF frontend, while the ARM Cortex-M0 runs at up to 26 MHz and accesses 128 KB RAM and 128 KB ROM containing the Bluetooth SIG-certified protocol stack.
Host communication occurs via configurable UART (4-wire or 6-wire mode), with GPIO_MS1 serving as default host wake-up pin. Hardware security includes AES-128 and SHA-256 accelerators, and peripherals include two SPI/I²C/UART interfaces, 12 GPIOs with 96 kΩ programmable pull resistors, 11-bit ADC, PWM, timers, and quadrature decoder - all accessible under BluSDK's reference profiles for thermometer, heart rate, and proximity applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BLE Standard | Bluetooth 5.0 compliant; certified (QDID 117593) for interoperability with BLE 5.0 devices. |
| Receiver Sensitivity | -95 dBm (typical); enables reliable reception in low-SNR environments like medical wearables. |
| TX Output Power | Programmable from -55 dBm to +3.5 dBm; supports range/power trade-offs without external PA. |
| Sleep Current | 2.01 µA; allows multi-year operation on coin-cell batteries in periodic-sensing applications. |
| MCU Core | ARM Cortex-M0 @ 26 MHz; executes BLE stack and application logic with 128 KB embedded RAM. |
| Power Supply Range | 1.8 V to 4.3 V; direct battery connection enabled by integrated buck DC/DC converter. |
| Operating Temp | -40°C to +85°C; qualified for industrial and automotive cabin-adjacent deployments. |
| Package | 32-pin QFN, 4 mm × 4 mm, 0.4 mm pitch, exposed thermal pad; RoHS-compliant surface-mount assembly. |
Pinout & Package
ATBTLC1000A-MU-T is housed in a 4 mm × 4 mm, 32-pin QFN package with exposed thermal paddle (Pin 33) requiring soldering to PCB ground for thermal and electrical integrity. The package supports reflow per JEDEC J-STD-020 and includes 0.85 mm total thickness (±0.15/−0.05 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 31, 32 | RF/Analog Supplies | VDD_RF, VDD_AMS, VDD_SXDIG, VDD_VCO supply dedicated 1.2 V domains for RF front-end and synthesizer. |
| 2 | RF I/O | RFIO single-ended antenna port; integrates T/R switch - eliminates external RF switch component. |
| 14, 15, 16 | PMU Nodes | VSW (switching node), VBATT_BUCK (buck input), VDDC_PD4 (1.2 V regulated output + feedback). |
| 19 | Power Control | CHIP_EN active-high enable for entire PMU; must be driven low at power-up to prevent unintended wake. |
| 24 | Wake Control | AO_GPIO_0 always-on input; logic low triggers Ultra_Low_Power entry when no BLE events pending. |
| 28–29 | Clock Inputs | XO_P/XO_N accept 26 MHz crystal; RTC_CLK_P/N accept 32.768 kHz crystal for low-power timing. |
| 4–5, 6–7, 8–9 | Debug & Host Interface | LP_GPIO_0/1 = SWD clock/I/O; LP_GPIO_2/3 = UART1 RX/TX; LP_GPIO_8/9 = UART1 CTS/RTS (4-wire mode). |
| Paddle (33) | Thermal/Ground | Exposed pad must be soldered to solid PCB ground plane for thermal dissipation and RF return path. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BLE 5.0 Stack | ROM-resident SIG-certified firmware (GAP, GATT, ATT, Security Manager) eliminates external flash and stack porting effort. |
| Hardware Security Acceleration | AES-128 and SHA-256 engines offload encryption/authentication from Cortex-M0, reducing latency and power in secure pairing. |
| Single-Wire Antenna Interface | Integrated T/R switch and matching network allow direct connection to PCB trace or chip antenna - no balun or external switch required. |
| Configurable Host Interface | UART-based 4-wire or 6-wire mode reduces host GPIO count; only two host GPIOs + one interrupt needed for full BLE control. |
| Ultra-Low-Power State Management | Software-controllable Ultra_Low_Power mode retains RAM while powering down BLE radio and CPU - enables sub-µA wake-on-event operation. |
| Integrated Buck DC/DC Converter | Replaces external regulator; accepts 1.8–4.3 V battery input and delivers 1.2 V @ up to 30 mA with 85% efficiency at 3 V/10 mA. |
Applications
| Wearable Health Monitor | Smart Industrial Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG or SpO₂ monitoring in wrist-worn device powered by CR2032 battery. IC Role / Device Role / Timing Role: BLE link controller and data pump; handles GATT-based sensor data streaming while host MCU remains asleep. Use Value: 2.01 µA sleep current and 15.1 µA average advertisement current extend battery life beyond 2 years with 1-second advertising interval. |
Use Scenario: Wireless temperature/humidity node deployed in factory environment with 10-year maintenance cycle. IC Role / Device Role / Timing Role: Self-contained BLE endpoint with integrated ADC and RTC; performs scheduled measurements and advertises via Connectable Undirected events. Use Value: -40°C to +85°C rating and integrated DC/DC ensure stable operation across industrial ambient ranges without external LDOs. |
| Asset Tracking Tag | Proximity-Based Access Control |
|
Use Scenario: Battery-powered logistics tag reporting location via iBeacon or Eddystone frames every 5 seconds. IC Role / Device Role / Timing Role: Standalone BLE advertiser; uses internal 26 MHz XO and programmable TX power (-20 dBm) to optimize range vs. battery life. Use Value: Programmable TX output (−55 to +3.5 dBm) allows dynamic adjustment based on proximity detection - conserving power in dense deployment zones. |
Use Scenario: Door lock module detecting authorized smartphone within 1 meter using RSSI-based proximity handshake. IC Role / Device Role / Timing Role: BLE peripheral with fast connection establishment; leverages hardware AES-128 for encrypted challenge-response authentication. Use Value: Dedicated security accelerators reduce authentication latency to <10 ms and eliminate software crypto overhead on host MCU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLE SiP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DA14531MOD-00F0100WW | ARM Cortex-M0+ core, 32 KB RAM, no integrated DC/DC; requires external 1.8 V supply and separate LDO. | Lacks integrated buck converter and ROM-based BLE stack - demands more host-side firmware integration. | Prefer when board space allows discrete power design and development team owns full BLE stack customization. |
| ESP32-WROOM-32 | Wi-Fi + BLE dual-mode SoC, 4 MB Flash, 520 KB SRAM; higher peak current (130 mA TX), larger 18 mm × 25.5 mm footprint. | Overqualified for pure BLE sensor endpoints; introduces unnecessary Wi-Fi RF complexity and certification burden. | Choose only if future Wi-Fi coexistence or OTA update capability is mandatory - not for cost- or power-optimized BLE-only use. |
Compared with DA14531MOD-00F0100WW and ESP32-WROOM-32, the ATBTLC1000A-MU-T delivers lowest system-level BOM count via integrated DC/DC, certified BLE stack, and single-wire antenna interface - making it optimal for compact, long-life, standards-compliant BLE endpoints where host MCU offloads protocol handling.
Availability
ATBTLC1000A-MU-T is available at Aetrix Electronics and suitable for wearable health monitors, industrial wireless sensors, asset tracking tags, and proximity access systems requiring stable component supply, long-term lifecycle support, and certified BLE 5.0 interoperability.
Supply support for ATBTLC1000A-MU-T 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
Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog products, and connectivity solutions for industrial, automotive, and IoT markets.
The ATBTLC1000A-MU-T belongs to Microchip's Bluetooth Low Energy SiP product line, designed specifically to reduce time-to-market for battery-constrained, standards-certified BLE endpoints by integrating radio, MCU, power management, and protocol stack in a single QFN package.
FAQ
What Bluetooth SIG certification status does the ATBTLC1000A-MU-T hold?
The ATBTLC1000A-MU-T holds Bluetooth SIG qualification with QDID 117593, confirming full compliance and interoperability with the Bluetooth Low Energy 5.0 specification. This certification covers the complete SiP - including transceiver, MAC, modem, and preloaded ROM-based protocol stack - eliminating need for end-product re-certification of the BLE subsystem. The ATBTLC1000A-MU-T certification is documented in the official Bluetooth Qualification Listing database.
Does the ATBTLC1000A-MU-T require external crystals, and if so, which ones?
Yes, the ATBTLC1000A-MU-T requires two external crystals: a 26 MHz fundamental-mode crystal connected to XO_P/XO_N pins for main system clock and BLE radio timing, and a 32.768 kHz tuning-fork crystal connected to RTC_CLK_P/RTC_CLK_N for real-time clock and low-power sleep timing. Both crystals must meet specified load capacitance and stability requirements outlined in Section 7 of the DS70005391A datasheet.
How does the ATBTLC1000A-MU-T manage power states without external supervision?
The ATBTLC1000A-MU-T autonomously manages power states via hardware-controlled transitions triggered by CHIP_EN, AO_GPIO_0, and internal firmware. CHIP_EN enables/disables the PMU; AO_GPIO_0 controls entry/exit from Ultra_Low_Power mode; and software commands handle BLE_ON_Transmit/Receive states. No external sequencer is needed - the device meets all timing requirements (e.g., tC = 10 µs from CHIP_EN rise to oscillator stabilization) internally.
Can the ATBTLC1000A-MU-T operate without an external host MCU?
No - the ATBTLC1000A-MU-T is designed as a BLE link controller and data pump, not a standalone application processor. It lacks user-accessible application flash and relies on an external host MCU for high-level logic, UI, and non-BLE peripherals. The ATBTLC1000A-MU-T communicates exclusively via UART (4- or 6-wire mode) and provides event-driven interrupts to coordinate with the host.
What is the role of the exposed paddle (Pin 33) in the ATBTLC1000A-MU-T QFN package?
The exposed paddle (Pin 33) serves as the primary thermal dissipation path and RF ground reference for the ATBTLC1000A-MU-T. It must be soldered to a solid, low-impedance PCB ground plane covering ≥80% of the paddle area. Failure to properly connect the paddle results in elevated junction temperature, degraded RF performance (especially TX output and RX sensitivity), and potential reliability issues during reflow or thermal cycling.
ATBTLC1000A-MU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v4.1
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 3.4Mbps
- Power - Output:
- 3.5dBm
- Sensitivity:
- -96dBm
- Memory Size:
- 128kB ROM, 128kB RAM
- Serial Interfaces:
- I2C, SPI, UART
- GPIO:
- 13
- Voltage - Supply:
- 1.8V ~ 4.3V
- Current - Receiving:
- 4mA
- Current - Transmitting:
- 3mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-QFN (4x4)
ATBTLC1000A-MU-T FAQ
1.How can I place an order for ATBTLC1000A-MU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ATBTLC1000A-MU-T 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 ATBTLC1000A-MU-T reliable?
The price and inventory of ATBTLC1000A-MU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATBTLC1000A-MU-T is usually 5 days.
3.What payment methods are accepted for ATBTLC1000A-MU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATBTLC1000A-MU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATBTLC1000A-MU-T?
ATBTLC1000A-MU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATBTLC1000A-MU-T 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 ATBTLC1000A-MU-T?
For technical support, including ATBTLC1000A-MU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATBTLC1000A-MU-T requirements.
6.How does Aetrix verify that ATBTLC1000A-MU-T is sourced from the original manufacturer or authorized distributors?
All ATBTLC1000A-MU-T 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 ATBTLC1000A-MU-T meets industry standards.
7.What is the process for return or replacement of ATBTLC1000A-MU-T?
All ATBTLC1000A-MU-T units undergo pre-shipment inspection (PSI). If there is an issue with ATBTLC1000A-MU-T, 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 ATBTLC1000A-MU-T part is unused and in its original packaging.
Return procedure for ATBTLC1000A-MU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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