Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!®
172
AC Characteristics
The section provides information on the AC characteristics and timing of the
Z8 Encore!™. All AC timing information assumes a standard load of 50pF on all outputs.
Table 102. AC Characteristics
VDD = 3.0 - 3.6V
TA =-400C to 1050C
Symbol Parameter
Fsysclk System Clock Frequency
Minimum Maximum Units Conditions
–
20.0
20.0
MHz Read-only from Flash memory.
0.032768
MHz Program or erasure of the Flash
memory.
FXTAL
Crystal Oscillator Frequency
1.0
20.0
MHz System clock frequencies below
the crystal oscillator minimum
require an external clock driver.
TXIN
System Clock Period
50
20
20
–
–
30
30
3
ns
ns
ns
ns
ns
TCLK = 1/Fsysclk
TCLK = 50ns
TCLK = 50ns
TCLK = 50ns
TCLK = 50ns
TXINH
TXINL
TXINR
TXINF
System Clock High Time
System Clock Low Time
System Clock Rise Time
System Clock Fall Time
–
3
PS017610-0404
Electrical Characteristics
ZILOG [ ZILOG, INC. ]
