Datasheet

MAXQ610
16-Bit Microcontroller with Infrared Module
_______________________________________________________________________________________ 5
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= V
RST
to 3.6V, T
A
= 0°C to +70°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
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
V
DD
= 3.6V, I
OL
= 25mA (Note 5) 1.0
V
DD
= 2.35V, I
OL
= 10mA (Note 5) 1.0
Output Low Voltage for IRTX V
OL_IRTX
V
DD
= 1.85V, I
OL
= 4.5mA 1.0
V
V
DD
= 3.6V, I
OL
= 11mA (Note 5) 0.4 0.5
V
DD
= 2.35V, I
OL
= 8mA (Note 5) 0.4 0.5
Output Low Voltage for RESET
and All Port Pins (Note 10)
V
OL
V
DD
= 1.85V, I
OL
= 4.5mA 0.4 0.5
V
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 5) 15 pF
Input Leakage Current I
L
Internal pullup disabled -100 +100 nA
V
DD
= 3.0V, V
OL
= 0.4V (Note 5) 16 28 39
Input Pullup Resistor for RESET,
IRTX, IRRX, and All Port Pins
R
PU
V
DD
= 2.0V, V
OL
= 0.4V 17 30 41
k
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 5) 0.5 1.0 1.5 M
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
45 55 %
f
HFIN
System Clock Frequency f
CK
HFXOUT = GND f
XCLK
MHz
System Clock Period t
CK
1/f
CK
MHz
NANOPOWER RING OSCILLATOR
T
A
= +25°C 3.0 8.0 20.0
Nanopower Ring Oscillator
Frequency
f
NANO
T
A
= +25°C, V
DD
= POR voltage (Note 5) 1.7 2.4
kHz
Nanopower Ring Oscillator Duty
Cycle
t
NANO
(Note 5) 40 60 %
Nanopower Ring Oscillator
Current
I
NANO
Typical at V
DD
= 1.64V, T
A
= +25°C
(Note 5)
40 400 nA