Z02205
Modem Controller
ZiLOG
4 PS001000-MOD0599
ABSOLUTE MAXIMUM RATINGS
Stresses greater than those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the device.
This rating is a stress rating only. Functional operation of
the device at any condition above those indicated in the op-
erational sections of these specifications is not implied. Ex-
posure to absolute maximum rating conditions for an ex-
tended period may affect device reliability.
Total power dissipation should not exceed 1.21 W for the
package. Power dissipation is calculated as follows:
Parameter
Min Max Units Notes
Ambient Temperature under Bias 0+70C
Storage Temperature –65 +150 C
Voltage on any Pin with Respect to V
SS
–0.6 +7 V 1
Voltage on V
DD
Pin with Respect to V
SS
–0.3 +7 V
Voltage on XTAL1 and RESET
Pins with Respect to V
SS
–0.6 V
DD
+1 V 2
Total Power Dissipation 1.21 W
Maximum Allowable Current out of V
SS
220 mA
Maximum Allowable Current into V
DD
180 mA
Maximum Allowable Current into an Input Pin –600 +600 µA 3
Maximum Allowable Current into an Open-Drain Pin –600 +600 µA 4
Maximum Allowable Output Current Sinked by Any I/O Pin 25 mA
Maximum Allowable Output Current Sourced by Any I/O Pin 25 mA
Notes:
1. This applies to all pins except XTAL pins and where otherwise noted.
2. There is no input protection diode from pin to V
DD
and current into pin is limited to ±600 µA.
3. This excludes XTAL pins.
4. Device pin is not at an output Low state.
Total Power Dissipation = V
DD
x [ I
DD
– (sum of I
OH
) ] = + sum of [ (V
DD
– V
OH
) x I
OH
] + sum of (V
0L
x I
0L
)
