Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 47

• 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

Reset, Stop Mode Recovery, and 
Low-Voltage Detection
Overview
Reset Types
PS025011-1010
The Reset Controller within the Z8 Encore! XP F1680 Series device controls Reset and
Stop Mode Recovery operation and provides indication of low-voltage supply conditions.
During the operation, the following events cause a Reset:
When the device is in STOP mode, a Stop Mode Recovery is initiated by each of the
following:
The low-voltage detection circuitry on the device features the following:
The Z8 Encore! XP F1680 Series provides various types of Reset operation. Stop Mode
Recovery is considered a form of Reset.
their operating characteristics. The System Reset is longer, if the external crystal oscillator
is enabled by the Flash option bits allowing additional time for oscillator start-up.
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•
•
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•
•
•
•
•
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Watchdog Timer (WDT) timeout (when configured by the
Power-On Reset (POR)
Voltage Brownout (VBO) protection
External RESET pin assertion (when the alternate RESET function is enabled by the
GPIO register)
On-Chip Debugger initiated Reset (OCDCTL[0] set to 1)
Watchdog Timer timeout
GPIO Port input pin transition on an enabled Stop Mode Recovery source
Interrupt from a timer or comparator enabled for STOP mode operation
The low-voltage detection threshold level is user-defined
It generates an interrupt when the supply voltage drops below a user-defined level
to initiate a Reset)
P R E L I M I N A R Y
Table 8
Reset, Stop Mode Recovery, and Low-Voltage
on page 34 lists the types of Reset and
Z8 Encore! XP
WDT_RES
Product Specification
®
Flash Option Bit
F1680 Series
33