Datasheet

DC Electrical Characteristics (Continued)
−40˚C ≤ T
A
≤ +85˚C unless otherwise specified.
Parameter Conditions Min Typ Max Units
Output Current Levels
D Outputs
Source V
CC
= 4.5V, V
OH
= 3.3V −0.4 mA
V
CC
= 2.7V, V
OH
= 1.8V −0.2 mA
Sink V
CC
= 4.5V, V
OL
= 1.0V 10 mA
V
CC
= 2.7V, V
OL
= 0.4V 2 mA
L Port
Source (Weak Pull-Up) V
CC
= 4.5V, V
OH
= 2.7V −10.0 −110 µA
V
CC
= 2.7V, V
OH
= 1.8V −2.5 −33 µA
Source (Push-Pull Mode) V
CC
= 4.5V, V
OH
= 3.3V −0.4 mA
V
CC
= 2.7V, V
OH
= 1.8V −0.2 mA
Sink (L0–L3, Push-Pull Mode) V
CC
= 4.5V, V
OL
= 1.0V 10.0 mA
V
CC
= 2.7V, V
OL
= 0.4V 2 mA
Sink (L4–L7, Push-Pull Mode) V
CC
= 4.5V, V
OL
= 0.4V 1.6 mA
V
CC
= 2.7V, V
OL
= 0.4V 0.7 mA
All Others
Source (Weak Pull-Up Mode) V
CC
= 4.5V, V
OH
= 2.7V −10.0 −110 µA
V
CC
= 2.7V, V
OH
= 1.8V −2.5 −33 µA
Source (Push-Pull Mode) V
CC
= 4.5V, V
OH
= 3.3V −0.4 mA
V
CC
= 2.7V, V
OH
= 1.8V −0.2 mA
Sink (Push-Pull Mode) V
CC
= 4.5V, V
OL
= 0.4V 1.6 mA
V
CC
= 2.7V, V
OL
= 0.4V 0.7 mA
Allowable Sink Current per Pin (Note 17)
D Outputs and L0 to L3 15 mA
All Others 3mA
Maximum Input Current without Latchup (Note 15)
±
200 mA
RAM Retention Voltage, Vr 2.0 V
V
CC
Rise Time from a V
CC
≥ 2.0V (Note 18) 12 µs
Input Capacitance (Note 17) 7 pF
Load Capacitance on D2 (Note 17) 1000 pF
AC Electrical Characteristics
−40˚C ≤ T
A
≤ +85˚C unless otherwise specified.
Parameter Conditions Min Typ Max Units
Instruction Cycle Time (t
C
)
Crystal/Resonator, External 4.5V ≤ V
CC
≤ 5.5V 1.0 DC µs
2.7V ≤ V
CC
<
4.5V 2.0 DC µs
Internal R/C Oscillator 4.5V ≤ V
CC
≤ 5.5V 1.667 µs
2.7V ≤ V
CC
<
4.5V TBD µs
R/C Oscillator Frequency Variation 4.5V ≤ V
CC
≤ 5.5V
±
35 %
(Note 17) 2.7V ≤ V
CC
<
4.5V TBD %
External CKI Clock Duty Cycle (Note 17) fr = Max 45 55 %
Rise Time (Note 17) fr = 10 MHz Ext Clock 12 ns
Fall Time (Note 17) fr = 10 MHz Ext Clock 8 ns
COP8SA Family
www.national.com 10