PRELIMINARY PRODUCT SPECIFICATION
2.4Ghz RF transceiver with Q5)( embedded 8051 compatible microcontroller and 9 input, 10 bit ADC
)($785(6
nRF2401 2.4GHz RF transceiver 8051 compatible microcontroller 9 input 10 bit ADC 100Kspls/s Single 1.9V to 3.6V supply Internal voltage regulators 2 A standby with wakeup on timer or external pin Internal VDD monitoring Supplied in 36 pin QFN (6x6mm) package P &026 WHFKQRORJ\ Mask programmable version available Very few external components Ease of design
$33/,&$7,216
Wireless gamepads Wireless headsets Wireless keyboards Wireless mouse Industrial sensors PC peripherals Phone peripherals Tags Alarms Remote control
Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway
Revision: 1.1
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- Phone +4772898900 - Fax +4772898989
05.05.03
PRELIMINARY PRODUCT SPECIFICATION
Q5)( *+] 5DGLR 7UDQVFHLYHU ZLWK 0LFURFRQWUROOHU
7$%/( 2) &217(17 1 GENERAL DESCRIPTION....................................................................................4 1.1 Quick Reference Data .......................................................................................4 1.2 Block Diagram ..................................................................................................5 1.3 Pin Diagram ......................................................................................................6 1.4 Glossary of Terms .............................................................................................7 2 ARCHITECTURAL OVERVIEW..........................................................................8 2.1 Microcontroller .................................................................................................8 2.2 PWM .................................................................................................................9 2.3 SPI.....................................................................................................................9 2.4 Port Logic..........................................................................................................9 2.5 Power Management.........................................................................................10 2.6 RTC Wakeup Timer, Watchdog and RC Oscillator .......................................10 2.7 XTAL Oscillator .............................................................................................10 2.8 AD Converter..................................................................................................10 2.9 Radio Transceiver ...........................................................................................11 3 I/O PORTS ............................................................................................................12 3.1 I/O port behavior during RESET ....................................................................12 3.2 Port 0 (P0) .......................................................................................................12 3.3 Port 1 (P1 or SPI port) ....................................................................................13 4 nRF2401 2.4GHz TRANSCEIVER SUBSYSTEM..............................................16 4.1 RADIO port (Port 2) .......................................................................................16 4.2 Modes of operation .........................................................................................18 4.3 Device configuration.......................................................................................24 4.4 Data package Description ...............................................................................32 4.5 Important RF Timing Data..............................................................................33 5 A/D CONVERTER ...............................................................................................38 5.1 A/D converter subsystem block diagram ........................................................38 5.2 A/D converter registers ...................................................................................39 5.3 A/D converter usage........................................................................................40 6 PWM......................................................................................................................42 7 INTERRUPTS .......................................................................................................43 7.1 Interrupt SFRs .................................................................................................43 7.2 Interrupt Processing ........................................................................................46 7.3 Interrupt Masking............................................................................................47 7.4 Interrupt Priorities ...........................................................................................47 7.5 Interrupt Sampling ..........................................................................................48 7.6 Interrupt Latency.............................................................................................48 7.7 Interrupt Latency from Power Down State. ....................................................48 7.8 Single-Step Operation.....................................................................................48 8 WAKEUP TIMER AND WATCHDOG...............................................................49 8.1 Tick calibration ...............................................................................................49 8.2 RTC Wakeup timer .........................................................................................49 8.3 Watchdog ........................................................................................................50 8.4 Reset................................................................................................................51 9 POWER SAVING MODES ..................................................................................52

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