
Pin No.
Pin Name I/O
Internal
Connection
Description
20~17
PA0~PA3
I
Wake-up
Pull-high
Trigger inputs
Can also be configured as wake-up inputs
21, 22
VSS
Negative power supply, ground
23
OSC
I
Built-in RC oscillator
An oscillator resistor is connected between OSC and
VSS
Absolute Maximum Ratings
Supply Voltage................................. 0.3V to 6V
Storage Temperature................. 50 C to 125 C
Input Voltage.................V
SS
0.3V to V
DD
+0.3V
Operating Temperature .............. 20 C to 70 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maxi-
mumRatings maycausesubstantialdamagetothedevice.Functionaloperationofthisdevice
at other conditions beyond those listed in the specification is not implied and prolonged expo-
sure to extreme conditions may affect device reliability.
Electrical Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
2.4
5.2
V
I
STB
Standby Current
3V
No load, system HALT
1
3
A
I
DD
Operating Current
3V
No load, f
SYS
=4MHz
5
8
mA
I
OL
PB0~PB7 Sink Current
3V
V
OL
=0.3V
4
6
mA
I
O
Max. AUD1 and AUD2
Output Current
3V
V
OH
=0.6V
1.5
2
mA
f
SYS
System Frequency
3V
R
OSC
=240k
3.6
4.0
4.4
MHz
HT84XXX
10
April 26, 2000