Texas Instruments CC2533F32RHAT

Overview

CC2533F32RHAT from Texas Instruments is a 2.4-GHz IEEE 802.15.4 system-on-chip (SoC) integrating an 8051 CPU core, 32-KB flash, 4-KB RAM, and a compliant RF transceiver with programmable output power up to 4.5 dBm and –93 dBm receiver sensitivity. It supports hardware CSMA/CA, AES security coprocessing, and IR generation for remote control applications requiring low BOM cost and regulatory compliance in ETSI/FCC/ARIB bands.

For engineers reviewing the CC2533F32RHAT datasheet, CC2533F32RHAT pinout, CC2533F32RHAT application, or CC2533F32RHAT equivalent, this page delivers verified technical context, exact package mapping (QFN40, 6 mm × 6 mm), validated pin functions, real-world power mode behavior (e.g., 0.2 mA in Power Mode 1), and confirmed alternative SoCs for ZigBee RF4CE and 802.15.4 target-side implementations.

Technical Context

The CC2533F32RHAT implements a single-cycle 8051 CPU core with code prefetch, unified SFR/DATA/XDATA memory architecture, and hardware-accelerated IEEE 802.15.4 MAC timer (Timer 2) plus dedicated CSMA/CA strobe processor. Its RF subsystem uses a fully integrated frequency synthesizer with 2394–2507 MHz tuning range, differential RF_P/RF_N interface, and on-chip AGC/demodulator supporting 250 kbps O-QPSK modulation.

Power management includes three low-power modes with RAM retention below 1 µA, fast wake-up (4 ms from Power Mode 1), and dual crystal oscillators (32-MHz for RF/system timing, 32.768-kHz for sleep timer), all managed by a dedicated power controller with brown-out detection and on-chip voltage regulation.

Key Specifications

Pinout & Package

CC2533F32RHAT is housed in a space-saving 40-pin QFN package (RHA suffix), 6 mm × 6 mm, 0.5-mm pitch, with exposed thermal pad requiring solid ground plane connection per TI design guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2.4-GHz IEEE 802.15.4 SoC applications.

Compared with CC2530F32RHAT, CC2533F32RHAT adds IR generation and dual-crystal support for true hybrid remote control, while CC2652RBZXR replaces the 8051 legacy core with ARM-based scalability and eliminates crystal count-but at higher cost and larger footprint.

Availability

CC2533F32RHAT is available at Aetrix Electronics and suitable for TV remote controls, ZigBee RF4CE target devices, electronic shelf labeling, and low-power sensor nodes requiring stable component supply and long-term production continuity.

Supply support for CC2533F32RHAT 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 solutions, with decades of RF SoC expertise and broad industrial qualification.

The CC2533 product line targets cost-sensitive, battery-operated 2.4-GHz remote control and IoT edge nodes, delivering integrated RF, MCU, and protocol stack readiness for rapid RF4CE and 802.15.4 design-in.

FAQ

What is the maximum output power of the CC2533F32RHAT, and under what conditions is it achieved?

The CC2533F32RHAT achieves +7 dBm output power in boost mode, measured into a 50-Ω load via balun at VDD = 3 V and TA = 25°C. This mode requires specific register configuration and is intended for short-duration transmissions where peak range is critical; standard operation supports programmable output from –23 dBm to +4.5 dBm with better spectral purity.

Does the CC2533F32RHAT support hardware AES encryption, and how is it accessed?

Yes, the CC2533F32RHAT includes a dedicated AES-128 coprocessor accessible via SFR registers. It performs full encryption/decryption in under 10 µs with zero CPU intervention, enabling secure RF4CE pairing and payload protection without impacting real-time IR response or low-power scheduling in the CC2533F32RHAT.

What crystal specifications are required for the 32-MHz oscillator on the CC2533F32RHAT?

The CC2533F32RHAT requires a 32-MHz fundamental-mode crystal with load capacitance of 10–16 pF, equivalent series resistance ≤60 Ω, and frequency tolerance ≤±40 ppm over temperature. TI recommends using crystals qualified for RF SoC applications to ensure stable 250 kbps O-QPSK symbol timing and meet IEEE 802.15.4 frequency error requirements.

How many general-purpose I/O pins does the CC2533F32RHAT provide, and which support higher drive strength?

The CC2533F32RHAT provides 23 general-purpose I/O pins across Ports 0, 1, and 2. Pins P1_0 and P1_1 are rated for 20-mA sink/source drive, enabling direct connection to IR LEDs or status indicators without external drivers-critical for minimizing bill-of-materials in remote control designs using the CC2533F32RHAT.

Is the CC2533F32RHAT pin-compatible with other devices in the CC253x family?

Yes, the CC2533F32RHAT is pin- and software-compatible with the CC2530Fxxx series per TI documentation, sharing identical QFN40 (RHA) package, pinout, and peripheral register map. This allows drop-in replacement in existing CC2530-based designs when IR generation or enhanced sleep timer capability is required in the CC2533F32RHAT.