Datasheet

REV. 0
ADuC831
–5–
Parameter V
DD
= 5 V V
DD
= 3 V Unit Test Conditions/Comments
SCLOCK and RESET Only
4
(Schmitt-Triggered Inputs)
V
T+
1.3 0.95 V min
3.0 2.5 V max
V
T–
0.8 0.4 V min
1.4 1.1 V max
V
T+
– V
T–
0.3 0.3 V min
0.85 0.85 V max
CRYSTAL OSCILLATOR
Logic Inputs, XTAL1 Only
V
INL
, Input Low Voltage 0.8 0.4 V typ
V
INH
, Input High Voltage 3.5 2.5 V typ
XTAL1 Input Capacitance 18 18 pF typ
XTAL2 Output Capacitance 18 18 pF typ
MCU CLOCK RATE 16 16 MHz max
DIGITAL OUTPUTS
Output High Voltage (V
OH
) 2.4 V min V
DD
= 4.5 V to 5.5 V
4.0 V typ I
SOURCE
= 80 µA
2.4 V min V
DD
= 2.7 V to 3.3 V
2.6 V typ I
SOURCE
= 20 µA
Output Low Voltage (V
OL
)
ALE, Ports 0 and 2 0.4 0.4 V max I
SINK
= 1.6 mA
0.2 0.2 V typ I
SINK
= 1.6 mA
Port 3 0.4 0.4 V max I
SINK
= 4 mA
SCLOCK/SDATA 0.4 0.4 V max I
SINK
= 8 mA, I
2
C Enabled
Floating State Leakage Current
4
±10 ±10 µA max
±1 ±1 µA typ
Floating State Output Capacitance 10 10 pF typ
START UP TIME MCLKIN = 16 MHz
At Power-On 500 500 ms typ
From Idle Mode 100 100 µs typ
From Power-Down Mode
Wakeup with INT0 Interrupt 150 400 µs typ
Wakeup with SPI/I
2
C Interrupt 150 400 µs typ
Wakeup with External RESET 150 400 µs typ
After External RESET in Normal Mode 30 30 ms typ
After WDT Reset in Normal Mode 3 3 ms typ Controlled via WDCON SFR