TL16C752B-EP Datasheet, PDF (15/35 Pages) Texas Instruments – 3.3-V DUAL UART WITH 64-BYTE FIFO

programmable baud generator (continued)
TL16C752B-EP
3.3-V DUAL UART WITH 64-BYTE FIFO
SGLS153 – FEBRUARY 2003
External
Clock
Driver
XTAL1
Optional
Clock
Output
Optional
Driver
XTAL2
VCC
C1
RP
Oscillator Clock
to Baud Generator
Logic
C2
XTAL1
Crystal
RX2
XTAL2
VCC
Oscillator Clock
to Baud Generator
Logic
CRYSTAL
3.072 MHz
1.8432 MHz
TYPICAL CRYSTAL OSCILLATOR NETWORK
RP
1 MΩ
RX2
1.5 kΩ
C1
C2
10 pF – 30 pF 40 pF – 60 pF
1 MΩ
1.5 kΩ
10 pF – 30 pF 40 pF – 60 pF
Figure 10. Typical Crystal Clock Circuits^†
† _{For crystal with fundamental frequency from 1 MHz to 24 MHz}
NOTE: For input clock frequency higher than 24 MHz, the crystal is not allowed and the oscillator must be used, since the TL16C752B-EP internal
oscillator cell can only support the crystal frequency up to 24 MHz.
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