
MC68HC16R1/916R1
USER’S MANUAL
ELECTRICAL CHARACTERISTICS
MOTOROLA
A-1
APPENDIX A
ELECTRICAL CHARACTERISTICS
Table A-1 Maximum Ratings
NOTES:
1. Permanent damage can occur if maximum ratings are exceeded. Exposure to voltages or currents in ex-
cess of recommended values affects device reliability. Device modules may not operate normally while be-
ing exposed to electrical extremes.
2. Although sections of the device contain circuitry to protect against damage from high static voltages or elec-
trical fields, take normal precautions to avoid exposure to voltages higher than maximum-rated voltages.
3. This parameter is periodically sampled rather than 100% tested.
4. All pins except TSC.
5. Input must be current limited to the value specified. To determine the value of the required current-limiting
resistor, calculate resistance values for positive and negative clamp voltages, then use the larger of the two
values.
6. Power supply must maintain regulation within operating V
DD
range during instantaneous and operating
maximum current conditions.
7. All functional non-supply pins are internally clamped to V
SS
for transitions below V
SS
. All functional pins
except EXTAL, TSC, and XFC are internally clamped to V
DD
for transitions below V
DD
.
8. Total input current for all digital input-only and all digital input/output pins must not exceed 10 mA. Exceed-
ing this limit can cause disruption of normal operation.
9. V
FPE
must not be raised to programming level while V
DD
is below specified minimum value. V
FPE
must not
be reduced below minimum specified value while V
DD
is applied.
10. Flash EEPROM modules can be damaged by power-on and power-off V
FPE
transients. Maximum power-on
overshoot tolerance is 13.5 V for periods of less than 30 ns.
Num
Rating
Symbol
Value
Unit
1
Supply Voltage
1,
2,
3
V
DD
V
in
– 0.3 to + 6.5
V
2
Input Voltage
1,
2,
3,
4, 5,
7
– 0.3 to + 6.5
V
3
Instantaneous Maximum Current
Single pin limit (applies to all pins)
1,
3,
5,
6
I
D
25
mA
4
Operating Maximum Current
Digital Input Disruptive Current
3,
5,
6,
7,
8
V
NEGCLAMP
≈
–0.3 V
V
POSCLAMP
≈
V
DD
+ 0.3 V
Flash EEPROM Program/Erase Supply Voltage
9,
10
I
ID
– 500 to + 500
μ
A
5
V
FPE
(V
DD
– 0.5) to +12.6
V
6
Operating Temperature Range
C Suffix
T
A
T
to T
– 40 to + 85
°
C
7
Storage Temperature Range
T
stg
– 55 to + 150
°
C