z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 360

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

AC Characteristics
Table 191. AC Characteristics
PS022006-0207
Symbol Parameter
F
F
T
T
T
T
T
sysclk
XTAL
XIN
XINH
XINL
XINR
XINF
General Purpose I/O Port Input Data Sample Timing
System Clock Frequency
Crystal Oscillator
Frequency
System 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.
Z16F Series AC characteristics and timing.
Figure 75
port pin is sampled on the rising edge of the system clock. The port value is then available
to the ZNEO CPU on the second rising clock edge following the change of the port value.
Table 192
illustrates timing of the GPIO port input sampling. The input value on a GPIO
lists the GPIO port input timing.
T
0.032768
A
P R E L I M I N A R Y
Min
= –40 °C to 125 °C
1.0
50
20
20
—
—
—
Max
20.0
20.0
20.0
30
30
—
3
3
Units Conditions
MHz
MHz
MHz
ns
ns
ns
ns
ns
T
T
T
T
T
Read-only from Flash memory
Program or erasure of the
Flash memory
System clock frequencies
below the crystal oscillator
minimum require an external
clock driver
CLK
CLK
CLK
CLK
CLK
Table 191
= 1/F
= 50 ns
= 50 ns
= 50 ns
= 50 ns
Product Specification
Electrical Characteristics
ZNEO
sysclk
lists the ZNEO
™
Z16F Series
346