Atmel AT43301, Руководство пользователя

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AT43301
10
Note: OSC2 must not be used to drive other circuitry.
AC Characteristics
Note: 1. With external 22
Ω
series resistor.
Table 8. PWR, STAT, OVC
Symbol Parameter Condition Min Max Unit
V
OL2
Output Low Level, PWR, STAT I
OL
= 4 mA 0.5 V
C
OUT
Output Capacitance 1 MHz 10 pF
V
IL3
Input Low Level 0.3V
CEXT
V
V
IH3
Input High Level 0.7V
CEXT
V
C
OUT
Output Capacitance 1 MHz 10 pF
V
OH2
Output High Level, PWR I
OH
= 4 mA V
CEXT
- 0.5 V
Table 9. Oscillator Signals: OSC1, OSC2
Symbol Parameter Condition Min Max Unit
V
LH
OSC1 Switching Level 0.47 1.20 V
V
HL
OSC1 Switching Level 0.67 1.44 V
C
X1
Input Capacitance, OSC1 17 pF
C
X2
Output Capacitance, OSC2 17 pF
C
12
OSC1/2 Capacitance 1 pF
tsu Start-up Time 6 MHz, fundamental 2 ms
D
L
Drive Level V
CC
= 3.3V, 6 MHz crystal, 100
Ω
equiv series resistor 150
µ
W
Table 10. DPx, DMx Driver Characteristics, Full Speed Operation
Symbol Parameter Condition Min Max Unit
t
R
Rise Time C
L
= 50 pF 4 20 ns
t
F
Fall Time C
L
= 50 pF 4 20 ns
t
RFM
t
R
/t
F
Matching 90 110 %
Z
DRV
Driver Output Resistance
(1)
Steady state drive 28 44
Ω