z8f0822 ZiLOG Semiconductor, z8f0822 Datasheet - Page 24
z8f0822
Manufacturer Part Number
z8f0822
Description
High Performance 8-bit Microcontrollers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z8F0822.pdf
(264 pages)
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Table 3. Signal Descriptions (Continued)
PS022517-0508
Signal
Mnemonic
Oscillators
XIN
XOUT
On-Chip Debugger
DBG
Reset
RESET
Power Supply
V
AV
V
AV
DD
SS
DD
SS
Caution:
I
I
I
I
I/O
I/O
O
I
I
Description
External Crystal Input—This is the input pin to the crystal oscillator. A crystal
is connected between the external crystal input and the
oscillator. In addition, this pin is used with external RC networks or external
clock drivers to provide the system clock to the system.
External Crystal Output—This pin is the output of the crystal oscillator. A
crystal is connected between external crystal output and the XIN pin to form
the oscillator. When the system clock is referred in this manual, it refers to the
frequency of the signal at this pin. This pin must be left unconnected when not
using a crystal.
Debug—This pin is the control and data input and output to and from the OCD.
This pin is open-drain.
For operation of the OCD, all power pins (V
with power and all ground pins (V
The DBG pin is open-drain and must have an external pull-up resistor to ensure
proper operation.
RESET—Generates a Reset when asserted (driven Low).
Digital Power Supply.
Analog Power Supply—Must be powered up and grounded to VDD, even if
not using analog features.
Digital Ground.
Analog Ground—Must be grounded and connected to VSS, even if not using
analog features.
SS
and AV
SS
Z8 Encore! XP
DD
) must be properly grounded.
and AV
Product Specification
Signal and Pin Descriptions
XOUT
DD
) must be supplied
®
pin to form the
F0822 Series
11
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