z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 241

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

AC Characteristics
PS019921-0308
Table 113. AC Characteristics
Symbol Parameter
F
F
T
T
T
T
T
sysclk
XTAL
XIN
XINH
XINL
XINR
XINF
System Clock Frequency
Crystal Oscillator Frequency 0.032768
Crystal Oscillator Clock
Period
System Clock High Time
System Clock Low Time
System Clock Rise Time
System Clock Fall Time
The section provides information on the AC characteristics and timing. All AC timing
information assumes a standard load of 50 pF on all outputs.
Encore! XP
®
F64XX Series AC characteristics and timing.
T
Minimum Maximum
0.032768
A
V
= –40 °C to 125 °C
DD
50
20
20
–
–
–
= 3.0 V–3.6V
20.0
20.0
20.0
–
3
3
Units Conditions
MHz
MHz
MHz
ns
ns
ns
ns
ns
Z8 Encore! XP
Program or erasure of the
Flash memory.
System clock frequencies
below the crystal oscillator
minimum require an external
clock driver.
T
T
can be tolerated with longer
clock periods.
T
can be tolerated with longer
clock periods.
Read-only from Flash memory.
CLK
CLK
CLK
Table 113
= 1/F
= 50 ns. Slower rise times
= 50 ns. Slower fall times
Product Specification
Electrical Characteristics
sysclk
lists the Z8
®
F64XX Series
227