Datasheet

MRF49XA
DS70590C-page 80 Preliminary © 2009-2011 Microchip Technology Inc.
TABLE 5-1: RECOMMENDED OPERATING CONDITIONS
Note 1: At minimum, VDD – 1.5V cannot be lower than 1.2V.
2: At maximum, V
DD + 1.5V cannot be higher than 5.5V.
TABLE 5-2: CURRENT CONSUMPTION
(1)
Note 1: Typical Values: TA = 25°C, VDD = 3.3V.
Note 1: Typical Values: T
A = 25°C, VDD = 3.3V.
2: Negative current is defined as the current sourced by the pin.
Parameters Min Typ Max Unit
Operating Temperature -40 — +85 °C
Supply Voltage for RF, Analog and Digital
Circuits
2.2 — 3.8 V
Supply Voltage for Digital I/O 2.2 3.3 3.8 V
DC Voltage on Open-Collector Outputs
(RFP, RFN)
(1,2)
VDD–1.5 — VDD+1.5 V
AC Peak Voltage on Open-Collector
Outputs (RFP, RFN)
(1)
VDD–1.5 — VDD+1.5 V
Chip mode Condition Min Typ Max Unit
Sleep Sleep clock disabled, all blocks disabled — 0.3 1 μA
Idle Oscillator and baseband enabled, clock
output disabled
—0.61.2mA
TX Power output – 0 dBm, 50Ω load, 433 MHz — 15 — mA
868 MHz — 16 — mA
915 MHz — 17 — mA
TX At maximum output power, 433 MHz — 22 26 mA
868 MHz — 23 27 mA
915 MHz — 24 28 mA
RX 433 MHz — 11 13 mA
868 MHz — 12 14 mA
915 MHz — 13 15 mA
Low Battery Voltage Detector
Current Consumption
——0.51.7μA
Wake-up Timer Current
Consumption
——1.53.5μA
TABLE 5-3: I/O PIN INPUT SPECIFICATIONS
(1)
Symbol Characteristic Condition Min Typ Max Unit
V
IL Input Low Voltage — — — 0.3xVDD V
VIH Input High Voltage — 0.7xVDD ——V
I
IL Input Low Leakage Current
(2)
VIL = 0V -1 — 1 μA
I
IH Input High Leakage Current VIH = VDD, VDD = 3.8V -1 — 1 μA
VOL Digital Low Output Voltage lOL = 2 mA — — 0.4 V
V
OH Digital Low Output IOH = -2 mA VDD–0.4 — — V
V
LBTD Low Battery Threshold Detect Programmable in 0.1V
steps
2.25 — 3.75 V