Tandy 1000 SL Technical Reference Manual page 157

3 . 0
ABSOLUTE MAXIMUM RATINGS
Min-Typ-Max Units
Storage Temperature: -65 150 degrees C
Operating Temperature : 0 25 55 degrees C
All output pins -0.5 7.0 volts DC
All input pins -0.5 7.0 volts DC
Power Supply (Vcc) -0.5
7 . 0
volts DC
Power dissipation 700 milliwatts
4.0 D. C . ELECTRICAL CHARACTERISTICS
4.1 Inputs
Leakage cur rent Mi n-Typ-Max Units
Vih (TTL in)
Vih (DS1218)
Vi1
Input capacitance
+/-lo
uA
2.0 Vcc+.5 volts DC
2.1
Vcc+.5 volts DC
-0.5
0.8 volts DC
10 PF
4.2
PDO
-
PD7, INIT, /AFXT, /STROBE
Min-Typ-Max Units
Io1
vo 1
Ioh
Voh
Capacitive load
4 mA
0.4 volts DC
1
mA
2.4
volts DC
100
PF
Mi n-Typ-Max Units
Io1
vo 1
Capacitive load
4
mA
0 . 4
volts DC
100 PF
4.4 DRQ, /TXD, /DTR, /RTS, PINT, SINT
Io1
vo 1
Ioh
Voh
Capacitive load
Min-Typ-Max Units
2 mA
volts DC
0.4
1
mA
2.4 volts DC
4 0
PF
4