Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 215

• Manufacturer Part Number: Z8F041APH020SG2156
• Description: 8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F041APH020SG2156

• Rohs: yes
• Core: eZ8
• Processor Series: Z8F041xx
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 4 KB
• Data Ram Size: 1 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: PDIP-20
• Mounting Style: Through Hole
• A/d Bit Size: 10 bit
• A/d Channels Available: 8
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

Crystal Oscillator
PS022827-1212
Operating Modes
Crystal Oscillator Operation
Note:
The products in the Z8 Encore! XP F082A Series contain an on-chip crystal oscillator for
use with external crystals with 32 kHz to 20 MHz frequencies. In addition, the oscillator
supports external RC networks with oscillation frequencies up to 4 MHz or ceramic reso-
nators with frequencies up to 8 MHz. The on-chip crystal oscillator can be used to generate
the primary system clock for the internal eZ8 CPU and the majority of the on-chip periph-
erals. Alternatively, the X
(32 kHz–20 MHz). If an external clock generator is used, the X
nected. The Z8 Encore! XP F082A Series products do not contain an internal clock
divider. The frequency of the signal on the X
system clock.
Although the X
pin is better suited for such use (see the
The Z8 Encore! XP F082A Series products support four oscillator modes:
•
•
•
•
The oscillator mode is selected via user-programmable Flash option bits. See the
Option Bits
The XTLDIS Flash option bit controls whether the crystal oscillator is enabled during
reset. The crystal may later be disabled after reset if a new oscillator has been selected as
the system clock. If the crystal is manually enabled after reset through the OSCCTL Reg-
ister, the user code must wait at least 1000 crystal oscillator cycles for the crystal to stabi-
lize. After this, the crystal oscillator may be selected as the system clock.
Minimum power for use with very low frequency crystals (32 kHz – 1 MHz)
Medium power for use with medium frequency crystals or ceramic resonators (0.5 MHz
to 8 MHz)
Maximum power for use with high frequency crystals (8 MHz to 20 MHz)
On-chip oscillator configured for use with external RC networks (<4 MHz)
chapter on page 159 for information.
IN
pin can be used as an input for an external clock generator, the CLKIN
IN
P R E L I M I N A R Y
input pin can also accept a CMOS-level clock input signal
System Clock Selection
IN
input pin determines the frequency of the
Z8 Encore! XP
OUT
Product Specification
section on page 193).
pin must be left uncon-
®
Crystal Oscillator
F082A Series
Flash
198