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CC2550-RTR1 Datasheet(PDF) 8 Page - Texas Instruments |
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CC2550-RTR1 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 55 page CC2550 PRELIMINARY Data Sheet (Rev.1.2) SWRS039A Page 8 of 54 4.6 DC Characteristics Tc = 25 °C if nothing else stated. Digital Inputs/Outputs Min Max Unit Condition Logic "0" input voltage 0 0.7 V Logic "1" input voltage VDD-0.7 VDD V Logic "0" output voltage 0 0.5 V For up to 4 mA output current Logic "1" output voltage VDD-0.3 VDD V For up to 4 mA output current Logic "0" input current NA -50 nA Input equals 0 V Logic "1" input current NA 50 nA Input equals VDD Table 9: DC characteristics 4.7 Power On Reset When the power supply complies with the requirements in Table 10 below, proper Power-On- Reset functionality is guaranteed. Otherwise, the chip should be assumed to have unknown state until transmitting an SRES strobe over the SPI interface. See Section 16.1 on page 23 for further details. Parameter Min Typ Max Unit Condition/Note Power-up ramp-up time. 5 ms From 0 V until reaching 1.8 V Power off time 1 ms Minimum time between power off and power-on. Table 10: Power-on reset requirements 5 Pin Configuration GND Exposed die attach pad 5 6 7 8 9CSn 10 RF_P 11 RF_N 12 AVDD 13 14 15 16 1 SCLK 2 SO (GDO1) 3 DVDD 4 DCOUPL Figure 1: Pinout top view Note: The exposed die attach pad must be connected to a solid ground plane as this is the main ground connection for the chip. |
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