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ST16C1550/51
2.97V TO 5.5V UART WITH 16-BYTE FIFO
REV.4.2.0
ABSOLUTE MAXIMUM RATINGS .................................................................................. 25
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%)................................................. 25
ELECTRICAL CHARACTERISTICS................................................................................ 25
DC ELECTRICAL CHARACTERISTICS.............................................................................................................. 25
AC ELECTRICAL CHARACTERISTICS.............................................................................................................. 26
TA=0O TO 70OC (-40O TO +85OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.97V TO 5.5V...................... 26
FIGURE 8. CLOCK TIMING............................................................................................................................................................... 27
FIGURE 9. MODEM INPUT/OUTPUT TIMING ...................................................................................................................................... 27
FIGURE 10. DATA BUS READ TIMING.............................................................................................................................................. 28
FIGURE 11. DATA BUS WRITE TIMING ............................................................................................................................................ 28
FIGURE 12. RECEIVE READY & INTERRUPT TIMING [NON-FIFO MODE]............................................................................................ 29
FIGURE 13. TRANSMIT READY & INTERRUPT TIMING [NON-FIFO MODE].......................................................................................... 29
FIGURE 14. RECEIVE READY & INTERRUPT TIMING [FIFO MODE, DMA DISABLED] .......................................................................... 30
FIGURE 15. RECEIVE READY & INTERRUPT TIMING [FIFO MODE, DMA ENABLED]........................................................................... 30
FIGURE 16. TRANSMIT READY & INTERRUPT TIMING [FIFO MODE, DMA MODE DISABLED].............................................................. 31
FIGURE 17. TRANSMIT READY & INTERRUPT TIMING [FIFO MODE, DMA MODE ENABLED]............................................................... 31
PACKAGE DIMENSIONS (48 PIN TQFP - 7 X 7 X 1 MM).................................................................................... 32
PACKAGE DIMENSIONS (28 PIN PDIP).......................................................................................................... 33
PACKAGE DIMENSIONS (28 PIN PLCC)......................................................................................................... 34
REVISION HISTORY ...................................................................................................................................... 35
TABLE OF CONTENTS ............................................................................................................ I
II
EXAR [ EXAR CORPORATION ]
