Wireless Modem Data Pump
FX909A
For the following conditions unless otherwise specified:
Xtal Frequency = 4.096MHz, VDD = 3.3V to 5.0V, Tamb = - 40°C to +85°C.
µC Parallel Interface Timings (ref. Figure 20)
tACSL
Address valid to CSN low time
tAH
tCSH
tCSHI
tCSRWL
Address hold time
CSN hold time
CSN high time
CSN to WRN or RDN low time
tDHR
Read data hold time
tDHW
tDSW
tRHCSL
tRACL
Write data hold time
Write data setup time
RDN high to CSN low time (write)
Read access time from CSN low
tRARL
tRL
tRX
tWHCSL
Read access time from RDN low
RDN low time
RDN high to D0-D7 3-state time
WRN high to CSN low time (read)
tWL
WRN low time
Notes Min. Typ.
0
0
0
12
6
0
0
0
90
0
11
11
200
0
200
Max.
Units
ns
ns
ns
clock cycles
ns
ns
ns
ns
ns
175
ns
145
ns
ns
50
ns
ns
ns
Notes:
11. With 30pF max to VSS on D0 - D7 pins.
12. Xtal/Clock cycles at the XTAL/CLOCK pin.
© 1996 Consumer Microcircuits Limited
43
D/909A/4