Owner manual

75
AT76C551
1612D–08/01
DC Characteristics
The values shown in this table are valid for T
A
= 0°C to 85°C, V
CC
= 3.3V unless otherwise noted.
Oscillator Signals: XIN, XOUT
Note: 1. XTAL2 must not be used to drive other circuitry.
Table 16. Power Supply
Symbol Parameter Condition Min Max Unit
V
CC
Power Supply 3.3 V
I
CC
Supply Current 50 mA
I
CCS
Suspended Device Current 200 µA
Table 17. USB Signals: DP, DM
Symbol Parameter Condition Min Max Unit
I
LO
High-Z Data Line Leakage 0V < Vin < 3.3V -10 +10 µA
V
DI
Differential Input Sensitivity DPx and DMx 0.2 V
V
CM
Differential Common Mode Range 0.8 2.5 V
V
SE
Single Ended Receiver Threshold 0.8 2.0 V
V
CRS
Output Signal Crossover Except first transition from idle state 1.3 2.0 V
V
OL1
Static Output Low RL of 15 kΩ to 3.6V 0.3 V
V
OH1
Static Output High RL of 15 kΩ to GND
Table 18. Oscillator Signals: XTAL1, XTAL2
(1)
Symbol Parameter Condition Min Max Unit
V
LH
XTAL1 Switching Level 0.47 1.20 V
V
HL
XTAL2 Switching Level 0.67 1.44 V
C
X1
Input Capacitance, XTAL1 9pF
C
X2
Output Capacitance, XTAL2 9pF
C
12
XTAL1/XTAL2 Capacitance 1pF
t
SU
Start-up Time 6 MHz, Fundamental 2 ms
D
L
Drive Level V
CC
= 3.3V, 13 MHz crystal, 120Ω Equiv. Series Resistor 1 mW