Rainbow Electronics MAXQ613 - Manual (Page 5)

16-Bit Microcontroller with Infrared Module
MAXQ613
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RECOMMENDED OPERATING CONDITIONS (continued)
(V DD = V RST to 3.6V, T A = 0NC to +70NC, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Hysteresis (Schmitt) V IHYS V DD = 3.3V, T A = +25NC 300 mV
Input Low Voltage for HFXIN V IL_HFXIN V GND 0.3 x V DD V
Input High Voltage for HFXIN V IH_HFXIN 0.7 x V DD V DD V
IRRX Input Filter Pulse-Width
Reject
t IRRX_R 50 ns
IRRX Input Filter Pulse-Width
Accept
t IRRX_A 300 ns
Output Low Voltage for IRTX V
OL_IRTX
V DD = 3.6V, I OL = 25mA (Note 3) 1.0
V V
DD
= 2.35V, I
OL
= 10mA (Note 3) 1.0
V DD = 1.85V, I OL = 4.5mA 1.0
Output Low Voltage for RESET
and All Port Pins (Note 9)
V OL
V DD = 3.6V, I OL = 11mA (Note 3) 0.4 0.5
V V DD = 2.35V, I OL = 8mA (Note 3) 0.4 0.5
V DD = 1.85V, I OL = 4.5mA 0.4 0.5
Output High Voltage for IRTX
and All Port Pins
V
OH
I
OH
= -2mA V
DD
- 0.5 V
DD
V
Input/Output Pin Capacitance
for All Port Pins
C IO (Note 4) 15 pF
Input Leakage Current I L Internal pullup disabled -100 +100 nA
Input Pullup Resistor for
RESET, IRTX, IRRX, P0, P1, P2
R PU
V DD = 3.0V, V OL = 0.4V (Note 4) 16 28 39
k W
V
DD
= 2.0V, V
OL
= 0.4V 17 30 41
EXTERNAL CRYSTAL/RESONATOR
Crystal/Resonator
f HFXIN 1 12 MHz
Crystal/Resonator Period t HFXIN 1/f HFXIN ns
Crystal/Resonator Warmup
Time
t XTAL_RDY From initial oscillation
8192 x
t HFXIN
ms
Oscillator Feedback Resistor R OSCF (Note 4) 0.5 1.0 1.5 M W
EXTERNAL CLOCK INPUT
External Clock Frequency
f XCLK DC 12 MHz
External Clock Period t XCLK 1/f XCLK ns
External Clock Duty Cycle t XCLK_DUTY (Note 4) 45 55 %
System Clock Frequency f CK
f HFXIN
MHz
HFXOUT = GND f XCLK
System Clock Period t CK 1/f CK ns
NANOPOWER RING
Nanopower Ring Frequency f NANO
T A = +25NC 3.0 8.0 20.0
kHz T A = +25NC, V DD = POR voltage
(Note 4)
1.7 2.4
Nanopower Ring Duty Cycle t NANO (Note 4) 40 60 %
Nanopower Ring Current I NANO
Typical at V
DD
= 1.64V,
T A = +25 °C (Note 4)
40 400 nA