Z8F042AHH020SC00TR Zilog, Z8F042AHH020SC00TR Datasheet - Page 198
Z8F042AHH020SC00TR
Manufacturer Part Number
Z8F042AHH020SC00TR
Description
IC ENCORE XP MCU FLASH 4K 20SSOP
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F042AHH020SC00TR
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
17
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
Z8F042AHH020SC00T
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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.
•
•
•
•
•
•
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
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