Z8F0813HJ005EG Zilog, Z8F0813HJ005EG Datasheet - Page 39

• Manufacturer Part Number: Z8F0813HJ005EG
• Description: IC Z8 ENCORE MCU FLASH 8K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0813HJ005EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 269-4182; Z8F0813HJ005EG

PS025203-0405
Operating Mode
NORMAL or HALT
modes
STOP mode
Power-On Reset
Each device in the Z8 Encore!
(POR) circuit. The POR circuit monitors the supply voltage and holds the device in the
Reset state until the supply voltage reaches a safe operating level. After the supply voltage
exceeds the POR voltage threshold (V
POR Counter has timed out. If the crystal oscillator is enabled by the option bits, this tim-
eout is longer.
After the Z8 Encore!
CPU fetches the Reset vector. Following Power-On Reset, the POR status bit in the Watch-
Dog Timer Control (WDTCTL) register is set to 1.
Figure 5 illustrates Power-On Reset operation. Refer to the “Electrical Characteristics” on
page 176 for the POR threshold voltage (V
Reset Source
Power-On Reset / Voltage Brown-
Out
Watch-Dog Timer time-out
when configured for Reset
RESET pin assertion
On-Chip Debugger initiated Reset
(OCDCTL[0] set to 1)
Power-On Reset / Voltage Brown-
Out
RESET pin assertion
DBG pin driven Low
Table 10. Reset Sources and Resulting Reset Type
®
Z8F0823 Series device exits the Power-On Reset state, the eZ8
P R E L I M I N A R Y
®
Z8F0823 Series contains an internal Power-On Reset
POR
), the device is held in the Reset state until the
Special Conditions
All reset pulses less than three system clocks
All reset pulses less than the specified analog
Reset delay begins after supply voltage
exceeds POR level
None
in width are ignored.
System Reset, except the On-Chip Debugger
is unaffected by the reset
Reset delay begins after supply voltage
exceeds POR level
delay are ignored. See “Electrical
Characteristics” on page 176.
None
POR
).
Z8 Encore!
Reset and STOP Mode Recovery
Product Specification
®
Z8F0823 Series
22