Datasheet

ADuC841/ADuC842/ADuC843
Rev. 0 | Page 5 of 88
Parameter V
DD
= 5 V V
DD
= 3 V Unit Test Conditions/Comments
LOGIC INPUTS
4
INPUT VOLTAGES
All Inputs Except SCLOCK, SDATA, RESET, and
XTAL1
VINL, Input Low Voltage
VINH, Input High Voltage
SDATA
VINL, Input Low Voltage
VINH, Input High Voltage
0.8
2.0
0.8
2.0
0.4
2.0
0.8
2.0
V max
V min
V max
V min
SCLOCK and RESET Only
4
(Schmitt-Triggered Inputs)
V
T+
V
T–
V
T+
– V
T–
1.3
3.0
0.8
1.4
0.3
0.85
0.95
0.25
0.4
1.1
0.3
0.85
V min
V max
V min
V max
V min
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 16.78
20
8.38
8.38
MHz max
MHz max
ADuC842/ADuC843 Only
ADuC841 Only
DIGITAL OUTPUTS
Output High Voltage (V
OH
) 2.4 V min V
DD
= 4.5 V to 5.5 V
4 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
STARTUP TIME At any core CLK
At Power-On 500 500 ms typ
From Idle Mode 100 100 µs typ
From Power-Down Mode
Wake-up with
INT0
Interrupt
150 400 µs typ
Wake-up with SPI/I
2
C Interrupt 150 400 µs typ
Wake-up 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