Datasheet

Data Sheet ADuC7019/20/21/22/24/25/26/27/28/29
Rev. F | Page 11 of 104
Parameter Min Typ Max Unit Test Conditions/Comments
DAC AC CHARACTERISTICS
Voltage Output Settling Time 10 µs
Digital-to-Analog Glitch Energy ±20 nV-sec 1 LSB change at major carry (where maximum
number of bits simultaneously changes in the
DACxDAT register)
COMPARATOR
Input Offset Voltage ±15 mV
Input Bias Current 1 µA
Input Voltage Range AGND AV
DD
− 1.2 V
Input Capacitance 7 pF
Hysteresis
4, 6
2 15 mV Hysteresis turned on or off via the CMPHYST bit in
the CMPCON register
Response Time 3 µs 100 mV overdrive and configured with CMPRES = 11
TEMPERATURE SENSOR
Voltage Output at 25°C 780 mV
Voltage TC −1.3 mV/°C
Accuracy ±3 °C
POWER SUPPLY MONITOR (PSM)
IOV
DD
Trip Point Selection
2.79
V
Two selectable trip points
3.07 V
Power Supply Trip Point Accuracy ±2.5 % Of the selected nominal trip point voltage
POWER-ON-RESET 2.36 V
GLITCH IMMUNITY ON RESET PIN
4
50 µs
WATCHDOG TIMER (WDT)
Timeout Period
0
512
sec
FLASH/EE MEMORY
Endurance
9
10,000 Cycles
Data Retention
10
20 Years T
J
= 85°C
DIGITAL INPUTS All digital inputs excluding XCLKI and XCLKO
Logic 1 Input Current ±0.2 ±1 µA V
IH
= IOV
DD
or V
IH
= 5 V
Logic 0 Input Current −40 −60 µA V
IL
= 0 V; except TDI on
ADuC7019/20/21/22/24/25/29
−80 −120 µA V
IL
= 0 V; TDI on ADuC7019/20/21/22/24/25/29
Input Capacitance 10 pF
LOGIC INPUTS
3
All logic inputs excluding XCLKI
V
INL
, Input Low Voltage 0.8 V
V
INH
, Input High Voltage 2.0 V
LOGIC OUTPUTS All digital outputs excluding XCLKO
V
OH
, Output High Voltage 2.4 V I
SOURCE
= 1.6 mA
V
OL
, Output Low Voltage
11
0.4 V I
SINK
= 1.6 mA
CRYSTAL INPUTS XCLKI and XCLKO
Logic Inputs, XCLKI Only
V
INL
, Input Low Voltage 1.1 V
V
INH
, Input High Voltage 1.7 V
XCLKI Input Capacitance 20 pF
XCLKO Output Capacitance 20 pF
INTERNAL OSCILLATOR 32.768 kHz
±3 %
±2
4
% T
A
= 0°C to 85°C range