Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 42

• Manufacturer Part Number: Z8F011ASH020EG2156
• Description: 8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F011ASH020EG2156

• Rohs: yes
• Core: eZ8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 1 KB
• Data Ram Size: 256 B
• On-chip Adc: No
• Package / Case: SOIC-20
• Mounting Style: SMD/SMT
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS025113-1212
Note: Not to Scale
Internal Precision
Internal RESET
VDD = 0.0V
Oscillator
Oscillator
Crystal
signal
Voltage Brown-Out Reset
V
V
POR
VBO
The devices in the Z8 Encore! F0830 Series provide low Voltage Brown-Out (VBO) pro-
tection. The VBO circuit forces the device to the Reset state, when the supply voltage
drops below the VBO threshold voltage (unsafe level). While the supply voltage remains
below the Power-On Reset threshold voltage (V
reset.
After the supply voltage exceeds the Power-On Reset threshold voltage, the device pro-
gresses through a full system reset sequence, as described in the POR section. Following
Power-On Reset, the POR status bit in the Reset Status (RSTSTAT) Register is set to 1.
Figure 7 displays the Voltage Brown-Out operation. See the
chapter on page 184 for the VBO and POR threshold voltages (V
The POR level is greater than the VBO level by the specified hysteresis value. This
ensures that the device undergoes a POR after recovering from a VBO condition.
Figure 6. Power-On Reset Operation
counter delay
POR
POR
Oscillator
optional XTAL
Start-up
counter delay
), the VBO circuit holds the device in
Z8 Encore!
Electrical Characteristics
Product Specification
VBO
and V
Execution
Program
®
F0830 Series
Reset Sources
POR
VDD = 3.3V
).
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