NS486SXF Datasheet, PDF (37/44 Pages) National Semiconductor (TI) – NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

3 0 Device Specifications (Continued)
3 3 5 5 MICROWIRE (3-WIRE) ACCESS BUS
Symbol
f_sclk
t_buf
t_low
t_high
t_dhold
t_dset
t_{su sto}
t_{su sta}
FIGURE 3-16 Access bus Timing Diagram
TABLE 3-17 Access Bus Timing Specifications
Parameter
SCLK Clock Frequency
Bus Free Time between STOP and START Condition
Low Period of the SCLK Clock
High Period of the SCLK Clock
Formula
Data Hold Time
Data Setup Time
Setup Time for STOP Condition
Hold Time for START Condition
TL EE 12514 – 25
Min
4 7 ms
4 7 ms
4 0 ms
250
250
4 0 ms
4 7 ms
Max
100 kHz
37
http www national com