MC33591FTAR2 Freescale Semiconductor, MC33591FTAR2 Datasheet - Page 13

• Manufacturer Part Number: MC33591FTAR2
• Description: IC RF RECEIVER 315,434MHZ 24LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC33591FTAR2

• Frequency: 315MHz, 434MHz
• Sensitivity: -105dBm
• Data Rate - Maximum: 11 kBaud
• Modulation Or Protocol: FSK, OOK
• Applications: General Data Transfer
• Current - Receiving: 5.7mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 1.9 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -
• Other names: MC33591FTAR2TR

use ROMEO2 in a standalone configuration without any external control.
As long as a low level is applied on RESETB, the circuit stays in state 1. This configuration mode enables to write
or read the internal registers through the SPI interface.
After POR, the circuit is in state 0 and configuration registers’ content is set to the reset value. This enables to
MOTOROLA
AND DME=0
RESETB=1
State 2, see figure
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AND DME=1
AND SOE=1
Power-On Reset
RESETB=1
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Figure 14: After POR state machine
SPI active and slave
Configuration mode
SPI disabled
RESETB=0
Sleep mode
State 0
State 1
MC33591 Technical Data
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AND DME=1
AND SOE=0
RESETB=1
State 6, see figure
Strobe Counter=SR
Strobe Counter ¹ SR
Raw data on MOSI
OR STROBE=1
AND STROBE=0
SPI disabled
Run mode
State 0b
SPI disabled
SPI slave
SPI master
STATE MACHINES
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