Texas Instruments CC2640F128RSMR

View All RF Accessories by Texas Instruments

Part Number:
CC2640F128RSMR
Manufacturer:
Texas Instruments
Category:
RF Accessories
RoHs:
RoHS Compliant
Datasheet:
CC2640F128RSMR_Datesheet
Description:
IC RF TxRx + MCU Bluetooth Bluetooth v4.1 2.4GHz 32-VFQFN Exposed Pad
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Specifications

Type

Paramete

Type

Paramete

Power - Output

5dBm

Frequency

2.4GHz

Memory Size

128kB Flash, 28kB SRAM

Protocol

Bluetooth v4.1

Supplier Device Package

32-VQFN (4x4)

Current - Transmitting

6.1mA ~ 9.1mA

Package / Case

32-VFQFN Exposed Pad

RF Family/Standard

Bluetooth

Current - Receiving

5.9mA ~ 6.1mA

GPIO

Operating Temperature

-40°C ~ 85°C

Modulation

DSSS, O-QPSK, GFSK

Sensitivity

-97dBm

Type

TxRx + MCU

Base Product Number

CC2640

Data Rate (Max)

1Mbps

Mfr

Texas Instruments

Mounting Type

Surface Mount

Serial Interfaces

I2C, I2S, JTAG, SPI, UART

Voltage - Supply

1.8V ~ 3.8V

Overview

CC2640F128RSMR Datasheet Summary

Name: CC2640F128RSMR
Brand: Texas Instruments
SKU: JM-CC2640F128RSMR
Availability: InStock

1. Device Overview

The CC2640F128RSMR is a member of Texas Instruments' SimpleLink™ family, a cost-effective, ultra-low-power wireless MCU optimized for Bluetooth Low Energy (BLE) applications. It features a 32-bit ARM Cortex-M3 processor, integrated 2.4-GHz RF transceiver, and a dedicated ultra-low-power sensor controller, enabling long battery life for coin-cell-powered and energy-harvesting devices.

2. Key Features

2.1 Microcontroller Core

Processor: ARM Cortex-M3 running at up to 48 MHz
EEMBC CoreMark® Score: 142
Memory: 128KB in-system programmable Flash, 8KB SRAM (cache), 20KB ultra-low-leakage SRAM
Debugging: 2-Pin cJTAG and JTAG support
Firmware Update: Over-The-Air (OTA) upgrade capability

2.2 Ultra-Low-Power Sensor Controller

Autonomous operation independent of the main system
16-bit architecture with 2KB ultra-low-leakage SRAM (code/data)
Supports analog/digital sensor interfacing and data collection in sleep mode

2.3 RF Section

Standard Compliance: Bluetooth Low Energy (BLE) 4.2 specification
Frequency Band: 2.4 GHz
Receiver Sensitivity: -97 dBm (BLE, differential mode); -96 dBm (single-ended mode)
Output Power: Programmable up to +5 dBm (differential); +2 dBm (single-ended)
Link Budget: 102 dB (BLE)
RF Interface: Single-ended or differential
Regulatory Compliance: ETSI EN 300 328, EN 300 440 Class 2, FCC CFR47 Part 15, ARIB STD-T66

2.4 Peripherals

GPIOs: 10 (32-pin VQFN RSM package)
Timers: Four general-purpose timer modules (eight 16-bit or four 32-bit, with PWM)
Analog: 12-bit ADC (200 ksamples/s, 8-channel analog MUX), continuous-time comparator, ultra-low-power analog comparator, programmable current source, integrated temperature sensor
Communication Interfaces: UART, 2× SSI (SPI, MICROWIRE, TI), I2C, I2S
Security: AES-128 security module, True Random Number Generator (TRNG)
Miscellaneous: Real-Time Clock (RTC), 32-channel µDMA, support for eight capacitive-sensing buttons

2.5 Power Consumption

Supply Voltage Range: 1.8–3.8 V (normal operation); 1.7–1.95 V (external regulator mode)
Active-Mode RX: 5.9 mA
Active-Mode TX (0 dBm): 6.1 mA; TX (+5 dBm): 9.1 mA
Active-Mode MCU: 61 µA/MHz; 48.5 CoreMark/mA
Active-Mode Sensor Controller: 8.2 µA/MHz
Standby Mode (RTC running, RAM/CPU retention): 1 µA
Shutdown Mode (wake on external events): 100 nA

3. Package Information

Package Type: VQFN (RSM)
Body Size: 4.00 mm × 4.00 mm
Pin Count: 32
Pitch: 0.4 mm
RoHS Compliance: Yes
Lead Finish: NIPDAU
MSL Rating: Level-3-260C-168 HR
Operating Temperature Range: -40 °C to 85 °C

4. Terminal Configuration (RSM Package)

4.1 Key Pin Functions

Pin Name	Type	Description
RF_P	RF I/O	Positive RF input (RX) / output (TX)
RF_N	RF I/O	Negative RF input (RX) / output (TX)
RX_TX	RF I/O	Optional bias pin for RF LNA
VDDS	Power	1.8–3.8 V main chip supply
VDDS2	Power	1.8–3.8 V GPIO supply
VDDS_DCDC	Power	1.8–3.8 V DC-DC supply (tie to ground for external regulator mode)
VDDR	Power	1.7–1.95 V supply (typically connected to internal DC-DC output)
VDDR_RF	Power	1.7–1.95 V RF core supply
DCDC_SW	Power	Output from internal DC-DC
DCOUPL	Power	1.27-V regulated digital-supply decoupling capacitor (no external circuitry supply)
DIO_0–DIO_9	Digital/Analog I/O	GPIOs (部分支持 Sensor Controller, analog functions, high-drive capability)
JTAG_TMSC/JTAG_TCKC	Digital I/O	JTAG debugging pins
RESET_N	Digital Input	Active-low reset (no internal pullup)
X32K_Q1/X32K_Q2	Analog I/O	32-kHz crystal oscillator pins
X24M_N/X24M_P	Analog I/O	24-MHz crystal oscillator pins
EGP	Power	Exposed Ground Pad

5. Memory Specifications

Flash Memory: 128KB (in-system programmable)
SRAM: 20KB ultra-low-leakage SRAM + 8KB cache SRAM (configurable as general-purpose SRAM)
ROM: Preprogrammed with TI RTOS kernel, Driverlib, BLE controller, and bootloader

6. Clock Systems

External Clocks: 24-MHz crystal (required for RF), 32.768-kHz crystal (optional, for BLE sleep mode accuracy)
Internal Clocks: 48-MHz RC oscillator (RCOSC_HF), 32-kHz RC oscillator (RCOSC_LF)
Clock Accuracy: RCOSC_HF (±0.25% calibrated), RCOSC_LF (compensatable to ±500 ppm for RTC)

7. Power Modes

Mode	CPU Status	Key Features	Current Consumption	Wake-Up Time
Active	Active	Full peripheral operation	1.45 mA + 31 µA/MHz	—
Idle	Off	RAM/power systems on	550 µA	14 µs
Standby	Off	RTC/register/RAM retention	1 µA (RCOSC_LF); 1.2 µA (XOSC_LF)	151 µs
Shutdown	Off	Full power-off	150 nA	1015 µs

8. Application Areas

Home and Building Automation: Lighting, locks, gateways, security systems
Industrial: Logistics, asset tracking, remote display, cable replacement, HMI
Retail: Beacons, ESL/price tags, point-of-sale systems
Health and Medical: Thermometers, SpO2 monitors, blood glucose/pressure meters, weight scales
Sports and Fitness: Activity trackers, heart rate monitors, sports watches, gym equipment
HID: Remote controls, keyboards, mice, gaming devices
Accessories: Wearables, trackers, luggage tags, toys

9. Tools and Development Environment

Development Kits: Full-feature and low-cost LaunchPad kits
Software Tools: SmartRF Studio, Sensor Controller Studio, SmartRF Flash Programmer 2
IDEs: IAR Embedded Workbench® for ARM, Code Composer Studio™
Reference Designs: Multiple RF configuration options available via TI Designs library

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