ADUC7023 Analog Devices, ADUC7023 Datasheet - Page 89

• Manufacturer Part Number: ADUC7023
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
• Manufacturer: Analog Devices

Specifications of ADUC7023

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 20
• Adc # Channels: 12
• Other: PWM

POWER-ON RESET OPERATION
An internal power-on reset (POR) is implemented on the
ADuC7023. For LV
holds the part in reset. As LV
timer times out for typically 64 ms before the part is released
from reset. The user must ensure that the power supply IOV
has reached a stable 2.7 V minimum level by this time. Likewise, on
power-down, the internal POR holds the part in reset until
LV
Figure 53 illustrates the operation of the internal POR in detail.
DD
has dropped below 2.40 V.
DD
below 2.40 V typical, the internal POR
DD
rises above 2.40 V, an internal
DD
Rev. B | Page 89 of 96
IOV
LV
POR
RST
DD
DD
2.40V TYP
Figure 53. Internal Power-On Reset Operation
64ms TYP
0.12ms TYP
3.3V
2.6V
2.40V TYP
ADuC7023