Z8F0813HJ005EG Zilog, Z8F0813HJ005EG Datasheet - Page 41

• 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
Internal RESET
System Clock
Note: Not to Scale
WDT Clock
VCC = 3.3V
signal
Watch-Dog Timer Reset
External Reset Input
V
V
POR
VBO
The POR level is greater than the VBO level by the specified hysteresis value. This
ensures that the device undergoes a power on reset after recovering from a VBO condition.
If the device is in NORMAL or STOP mode, the Watch-Dog Timer can initiate a System
Reset at time-out if the WDT_RES Flash Option Bit is programmed to 1. This is the
unprogrammed state of the WDT_RES Flash Option Bit. If the bit is programmed to 0, it
configures the Watch-Dog Timer to cause an interrupt, not a System Reset, at time-out.
The WDT status bit in the WDT Control register is set to signify that the reset was initi-
ated by the Watch-Dog Timer.
The RESET pin has a Schmitt-triggered input and an internal pull-up resistor. Once the
RESET pin is asserted for a minimum of 4 system clock cycles, the device progresses
through the System Reset sequence. Because of the possible asynchronicity of the system
clock and reset signals, the required reset duration may be as short as three clock periods
Execution
Program
Figure 6.Voltage Brown-Out Reset Operation
Brownout
Voltage
P R E L I M I N A R Y
counter delay
POR
Z8 Encore!
Reset and STOP Mode Recovery
Product Specification
Execution
Program
®
Z8F0823 Series
VCC = 3.3V
24