Z8F1233QH020SG Zilog, Z8F1233QH020SG Datasheet - Page 37

• Manufacturer Part Number: Z8F1233QH020SG
• Description: IC ENCORE XP MCU FLSH 12K 20QFN
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F1233QH020SG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• For Use With: 770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4656

PS025111-1207
Internal RESET
System Clock
Note: Not to Scale
WDT Clock
VDD = 3.3 V
signal
Watchdog Timer Reset
External Reset Input
V
V
POR
VBO
The Voltage Brownout circuit can be either enabled or disabled during STOP mode.
Operations during STOP mode is set by the VBO_AO Flash option bit. See
Bits
If the device is in NORMAL or STOP mode, the Watchdog 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 Watchdog Timer to cause an interrupt, not a system reset, at time-out. The
WDT status bit in the reset status (RSTSTAT) register is set to 1 to signify that the reset
was initiated by the Watchdog 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 four 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 three or four clock periods. A
Execution
on page 117 for information about configuring VBO_AO.
Program
Figure 7.Voltage Brownout Reset Operation
Brownout
Voltage
counter delay
POR
Z8 Encore!
Reset and Stop Mode Recovery
Product Specification
Execution
Program
®
F0830 Series
VDD = 3.3 V
Flash Option
27