Rainbow Electronics AT89C5132 - Manual (Page 140)

140
AT8xC5132
4173A–8051–08/02
Phase Lock Loop
Schematic Figure 117. PLL Filter Connection
Parameters Table 127. PLL Filter Characteristics
V
DD
= 2.7 to 3.3V , TA = -40
°
to +85
°
C
In-system Programming
Schematic Figure 118. ISP Pull-down Connection
Parameters Table 128. ISP Pull-Down Characteristics V
DD
= 2.7 to 3.3V , T
A
= -40
°
to +85
°
C
V
SS
PFILT
R
C1
C2
V
SS
Symbol Parameter Min Typ Max Unit
R Filter Resistor 100 Ω
C1 Filter Capacitance 1 10 nF
C2 Filter Capacitance 2 2.2 nF
V
SS
ISP
RISP
Symbol Parameter Min Typ Max Unit
R
ISP
ISP Pull-Down Resistor 2.2 k Ω