23.2.5.2
Parameters
Table 106. PLL Filter Characteristics
VDD = 2.7 to 3.3V , TA = -40 to +85°C
Symbol
Parameter
Min
Typ
100
10
Max
Unit
Ω
R
Filter Resistor
C1
C2
Filter Capacitance 1
Filter Capacitance 2
nF
nF
2.2
23.2.6
USB Connection
23.2.6.1
Schematic
Figure 23-6. USB Connection
VDD
To Power
Supply
RFS
VBUS
D+
D-
D+
D-
RUSB
RUSB
GND
VSS
23.2.6.2
Parameters
Table 35. USB Characteristics
DD = 3 to 3.3 V, TA = -40 to +85°C
V
Symbol
RUSB
Parameter
Min
Typ
27
Max
Unit
Ω
USB Termination Resistor
USB Full Speed Resistor
RFS
1.5
KΩ
23.2.7
In-system Programming
23.2.7.1
Schematic
Figure 23-7. ISP Pull-down Connection
ISP
RISP
VSS
23.2.7.2
Parameters
Table 107. ISP Pull-Down Characteristics
VDD = 3 to 3.3V , TA = -40 to +85°C
Symbol
Parameter
Min
Typ
Max
Unit
RISP
ISP Pull-Down Resistor
2.2
kΩ
158
AT89C5132
4173E–USB–09/07
ATMEL [ ATMEL ]
