Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 323

• 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

®
Z8 Encore! XP
F1680 Series
Product Specification
309
INTEN—Internal Precision Oscillator Enable
1 = Internal precision oscillator is enabled.
0 = Internal precision oscillator is disabled.
XTLEN—Crystal Oscillator Enable; this setting overrides the 
GPIO register control for PA0 and PA1
1 = Crystal oscillator is enabled.
0 = Crystal oscillator is disabled.
WDTEN—Watchdog Timer Oscillator Enable
1 = Watchdog Timer oscillator is enabled.
0 = Watchdog Timer oscillator is disabled.
POFEN—Primary Oscillator Failure Detection Enable
1 = Failure detection and recovery of primary oscillator is enabled.
0 = Failure detection and recovery of primary oscillator is disabled.
WDFEN—Watchdog Timer Oscillator Failure Detection Enable
1 = Failure detection of Watchdog Timer oscillator is enabled.
0 = Failure detection of Watchdog Timer oscillator is disabled.
SCKSEL—System Clock Oscillator Select
000 = Internal precision oscillator functions as system clock.
001 = Reserved.
010 = Crystal oscillator or external RC oscillator functions as system clock.
011 = Watchdog Timer oscillator functions as system.
100 = External clock signal on PB3 functions as system clock.
101 = Reserved.
110 = Reserved.
111 = Reserved.
Note:
The "INTEN" should be disabled when you use other clocks as system clock.
Oscillator Control1 Register
The Oscillator Control1 Register (OSCCTL1) enables/disables the secondary oscillator
circuits which becomes the peripheral clock. The Oscillator Control1 Register 
is also used to select the internal precision-oscillator frequency.
The Oscillator Control 1 Register must be unlocked before writing. Writing the 
to the Oscillator Control 1 Register 
two step sequence
followed by
E7H
18H
unlocks it. The register is locked at successful completion of a register write to the
OSCCTL1.
PS025011-1010
P R E L I M I N A R Y
Oscillator Control