Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 319

• Manufacturer Part Number: Z8F2480AN020SG
• Description: MCU 8BIT 24KB FLASH 44LQFP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F2480AN020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 37
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LQFP
• Processor Series: Z8F248x
• Core: eZ8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU269-4643 - KIT DEV Z8 ENCORE XP 28-PIN269-4630 - DEV KIT FOR Z8 ENCORE 8K/4K269-4629 - KIT DEV Z8 ENCORE XP 28-PIN269-4628 - KIT DEV Z8 ENCORE XP 8-PIN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-4676

Oscillator Control
Overview
Operation
PS025011-1010
System Clock Selection
The Z8 Encore! XP F1680 Series devices use five possible clocking schemes, each user-
selectable:
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•
•
•
•
In addition, Z8 Encore! XP F1680 Series devices contain:
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•
This chapter discusses the logic used to select the system clock and handle primary
oscillator failures. A description of the specific operation of each oscillator is outlined
elsewhere in this document. The detailed description of the
starts on page 137, the
chapter outlining the
The oscillator control block is selected from the available clocks.
details each clock source and its usage.
On-chip precision trimmed RC oscillator
On-chip oscillator using off-chip crystal or resonator
On-chip oscillator using external RC network
External clock drive
On-chip low precision Watchdog Timer oscillator
A clock failure detection and recovery circuitry allowing continued operation despite a
failure of the primary oscillator
A peripheral clock that allows timers to be clocked directly from an external 
32 kHz watch crystal
Crystal Oscillator
Internal Precision Oscillator
P R E L I M I N A R Y
begins on page 311.
description starts on page 317, and the
Z8 Encore! XP
Watchdog Timer
Product Specification
Table 168
®
Oscillator Control
F1680 Series
on page 306
Oscillator
305