Z8F012ASB020EG Zilog, Z8F012ASB020EG Datasheet - Page 198

• Manufacturer Part Number: Z8F012ASB020EG
• Description: IC ENCORE XP MCU FLASH 1K 8SOIC
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F012ASB020EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 6
• Program Memory Size: 1KB (1K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 16 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-SOIC (3.9mm Width)
• Processor Series: Z8F012Ax
• Core: eZ8
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: Z8F04A08100KITG, Z8F04A28100KITG, ZENETSC0100ZACG, ZENETSC0100ZACG, ZUSBOPTSC01ZACG, ZUSBSC00100ZAC, ZUSBSC00100ZACG
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4038; Z8F012ASB020EG

Oscillator Control
Operation
PS022825-0908
System Clock Selection
The Z8 Encore! XP
user-selectable:
In addition, Z8 Encore! XP F082A Series devices contain clock failure detection and
recovery circuitry, allowing continued operation despite a failure of the system clock
oscillator.
This chapter discusses the logic used to select the system clock and handle primary
oscillator failures.
The oscillator control block selects from the available clocks.
source and its usage.
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•
•
•
•
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Internal precision trimmed RC oscillator (IPO).
On-chip oscillator using off-chip crystal or resonator.
On-chip oscillator using external RC network.
External clock drive.
On-chip low power Watchdog Timer oscillator.
Clock failure detection circuitry.
®
F082A Series devices uses five possible clocking schemes, each
Z8 Encore! XP
Table 108
Product Specification
details each clock
®
F082A Series
Oscillator Control
187