Z8F1233QH020SG Zilog, Z8F1233QH020SG Datasheet - Page 49

• Manufacturer Part Number: Z8F1233QH020SG
• Description: IC ENCORE XP MCU FLSH 12K 20QFN
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F1233QH020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4656

Direct LED Drive
Shared Reset Pin
Crystal Oscillator Override
5 V Tolerance
External Clock Setup
PS025111-1207
The port C pins provide a sinked current output, capable of driving an LED without
requiring an external resistor. The output sinks current at programmable levels, 3 mA,
7 mA, 13 mA, and 20 mA. This mode is enabled through the Alternate function
sub-register AFS1 and is programmable through the LED control registers.
For proper function, the LED anode must be connected to V
GPIO pin.
Using all Port C pins in LED drive mode with maximum current may result in excessive
total current. See
the applicable package.
On the 20- and 28-pin 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 function on power-up.
This pin acts as a bidirectional reset until the user software re-configures it. When in GPIO
mode, the port D0 pin functions as output only.
For systems using a crystal oscillator, the pins PA0 and PA1 are connected to the crystal.
When the crystal oscillator is enabled, the GPIO settings are overridden and PA0 and PA1
are disabled. See
In the 20- and 28-pin versions of this device, any pin, which shares functionality with an
ADC, crystal or comparator port is not 5 V tolerant, including PA[1:0], PB[5:0] and
PC[2:0]. All other signal pins are 5 V tolerant, and can safely handle inputs higher than
V
resistor.
For systems using an external TTL drive, PB3 is the clock source for 20- and 28-pin
devices. In this case, configure PB3 for Alternate function CLKIN. Write to the oscillator
DD
even with the pull-ups enabled, but with excess power consumption on pull-up
Oscillator Control Register Definitions
Electrical Characteristics
on page 177 for the maximum total current for
on page 146.
Z8 Encore!
DD
General Purpose Input/Output
and the cathode to the
Product Specification
®
F0830 Series
39