Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 65

• Manufacturer Part Number: Z8F16800144ZCOG
• Description: KIT DEV FOR Z8F642 MCU 44 PIN
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: MCUr

Specifications of Z8F16800144ZCOG

• Contents: Hardware, Software and Documentation
• For Use With/related Products: Z8F642
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4678

Direct LED Drive
Shared Reset Pin
Crystal Oscillator Override
32 kHz Secondary Oscillator Override
5 V Tolerance
PS025011-1010
The Port C pins provide a current synched output capable of driving an LED without
requiring an external resistor. The output synchs current at programmable levels of 3 mA,
7 mA, 13 mA, and 20 mA. This mode is enabled through the Alternate Function 
subregister AFS1 and is programmable through the LED control registers. For proper
function, the LED anode must be connected to V
Using all Port C pins in LED drive mode with maximum current may result in excessive
total current. For the maximum total current for the applicable package, see
Characteristics
On all the devices, the Port D0 pin shares function with a bidirectional reset pin. 
Unlike all other I/O pins, this pin does not default to GPIO pin on power-up. This pin acts
as a bidirectional reset until user software reconfigures it. The Port D0 pin is output-only
when in GPIO mode.
For systems using the crystal oscillator, PA0 and PA1 is used to connect the crystal. 
When the main crystal oscillator is enabled (see
308), the GPIO settings are overridden and PA0 and PA1 is disabled.
For systems using a 32 kHz secondary oscillator, PA2 and PA3 is used to connect a watch
crystal. When the 32 kHz secondary oscillator is enabled (see
on page 309), the GPIO settings are overridden and PA2 and PA3 is disabled.
All GPIO pins, including those that share functionality with an ADC, crystal or
comparator signals are 5 V tolerant and can handle inputs higher than V
pull-ups enabled.
on page 339.
P R E L I M I N A R Y
Oscillator Control0 Register
DD
and the cathode to the GPIO pin.
Z8 Encore! XP
Oscillator Control1 Register
General-Purpose Input/Output
Product Specification
DD
®
F1680 Series
even with the
Electrical
on page
51