Data Sheet
ADuC7019/20/21/22/24/25/26/27/28/29
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DAC AC CHARACTERISTICS
Voltage Output Settling Time
Digital-to-Analog Glitch Energy
10
20
µs
nV-sec
1 LSB change at major carry (where maximum
number of bits simultaneously changes in the
DACxDAT register)
COMPARATOR
Input Offset Voltage
Input Bias Current
Input Voltage Range
Input Capacitance
Hysteresis4, 6
15
1
mV
µA
V
pF
mV
AGND
2
AVDD − 1.2
15
7
3
Hysteresis turned on or off via the CMPHYST bit in
the CMPCON register
100 mV overdrive and configured with CMPRES = 11
Response Time
µs
TEMPERATURE SENSOR
Voltage Output at 25°C
Voltage TC
780
−1.3
3
mV
mV/°C
°C
Accuracy
POWER SUPPLY MONITOR (PSM)
IOVDD Trip Point Selection
2.79
3.07
2.5
V
V
%
V
Two selectable trip points
Power Supply Trip Point Accuracy
POWER-ON-RESET
GLITCH IMMUNITY ON RESET PIN4
WATCHDOG TIMER (WDT)
Timeout Period
Of the selected nominal trip point voltage
2.36
50
µs
0
512
sec
FLASH/EE MEMORY
Endurance9
Data Retention10
10,000
20
Cycles
Years
TJ = 85°C
DIGITAL INPUTS
Logic 1 Input Current
Logic 0 Input Current
All digital inputs excluding XCLKI and XCLKO
VIH = IOVDD or VIH = 5 V
VIL = 0 V; except TDI on
0.2
−40
1
−60
µA
µA
ADuC7019/20/21/22/24/25/29
−80
10
−120
0.8
µA
pF
VIL = 0 V; TDI on ADuC7019/20/21/22/24/25/29
Input Capacitance
LOGIC INPUTS3
VINL, Input Low Voltage
VINH, Input High Voltage
LOGIC OUTPUTS
VOH, Output High Voltage
VOL, Output Low Voltage11
CRYSTAL INPUTS XCLKI and XCLKO
Logic Inputs, XCLKI Only
VINL, Input Low Voltage
VINH, Input High Voltage
XCLKI Input Capacitance
XCLKO Output Capacitance
INTERNAL OSCILLATOR
All logic inputs excluding XCLKI
V
V
2.0
2.4
All digital outputs excluding XCLKO
ISOURCE = 1.6 mA
ISINK = 1.6 mA
V
V
0.4
1.1
1.7
20
20
V
V
pF
pF
kHz
%
32.768
3
24
%
TA = 0°C to 85°C range
Rev. F | Page 11 of 104
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