Z8F3201AN020EC00TR Zilog, Z8F3201AN020EC00TR Datasheet - Page 183

• Manufacturer Part Number: Z8F3201AN020EC00TR
• Description: IC ENCORE MCU FLASH 32K 44LQFP
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F3201AN020EC00TR

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: Z8F3201AN020EC00T

On-Chip Oscillator
20MHz Crystal Oscillator Operation
PS017610-0404
The Z8F640x family devices feature an on-chip oscillator for use with an external 1-
20MHz crystal. This oscillator generates the primary system clock for the internal eZ8
CPU and the majority of the on-chip peripherals. Alternatively, the X
accept a CMOS-level clock input signal (32kHz-20MHz). If an external clock generator is
used, the X
tain in internal clock divider. The frequency of the signal on the X
the frequency of the system clock. The Z8F640x family device on-chip oscillator does not
support external RC networks or ceramic resonators.
Figure 90 illustrates a recommended configuration for connection with an external
20MHz, fundamental-mode, parallel-resonant crystal. Recommended crystal specifica-
tions are provided in Table 99. Resistor R
Printed circuit board layout should add no more than 4pF of stray capacitance to either the
X
to decrease loading.
IN
or X
OUT
OUT
pins. If oscillation does not occur, reduce the values of capacitors C
pin must be left unconnected. The Z8F640x family device does not con-
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
1
limits total power dissipation by the crystal.
IN
input pin determines
IN
On-Chip Oscillator
input pin can also
Z8 Encore!
1
and C
®
2
165