Rainbow-electronics AT89C5132 Manual do Utilizador descarregar pdf (Página 140)

140

AT8xC5132

4173A–8051–08/02

Phase Lock Loop

Schematic Figure 117. PLL Filter Connection

Parameters Table 127. PLL Filter Characteristics

= 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

= 2.7 to 3.3V , T

= -40° to +85°C

PFILT

Symbol Parameter Min Typ Max Unit

R Filter Resistor 100 Ω

C1 Filter Capacitance 1 10 nF

C2 Filter Capacitance 2 2.2 nF

ISP

RISP

Symbol Parameter Min Typ Max Unit

ISP

ISP Pull-Down Resistor 2.2 kΩ

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 ... 161 162

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Rainbow-electronics AT89C5132 Manual do Utilizador Página 140