MC908QY8CDWE Datasheet, PDF (209/232 Pages) Freescale Semiconductor, Inc – Addendum to MC68HC908QB8, rev. 3

Chapter 18
Electrical Specifications
18.1 Introduction
This section contains electrical and timing specifications.
18.2 Absolute Maximum Ratings
Maximum ratings are the extreme limits to which the microcontroller unit (MCU) can be exposed without
permanently damaging it.
NOTE
This device is not guaranteed to operate properly at the maximum ratings.
Refer to 18.5 5-V DC Electrical Characteristics and 18.8 3-V DC Electrical
Characteristics for guaranteed operating conditions.
Characteristic⁽¹⁾
Supply voltage
Input voltage
Mode entry voltage, IRQ pin
Maximum current per pin excluding
PTA0–PTA5, V_DD, and V_SS
Maximum current for pins PTA0–PTA5
Storage temperature
Maximum current out of V_SS
Maximum current into V_DD
1. Voltages references to V_SS.
Symbol
V_DD
V_IN
V_TST
I
I_PTA0—I_PTA5
T_STG
I_MVSS
I_MVDD
Value
–0.3 to +6.0
V_SS –0.3 to V_DD +0.3
V_SS –0.3 to +9.1
±15
±25
–55 to +150
100
100
Unit
V
V
V
mA
mA
°C
mA
mA
NOTE
This device contains circuitry to protect the inputs against damage due to
high static voltages or electric fields; however, it is advised that normal
precautions be taken to avoid application of any voltage higher than
maximum-rated voltages to this high-impedance circuit. For proper
operation, it is recommended that V_IN and V_OUT be constrained to the
range V_SS ≤ (V_IN or V_OUT) ≤ V_DD. Reliability of operation is enhanced if
unused inputs are connected to an appropriate logic voltage level (for
example, either V_SS or V_DD.)
MC68HC908QB8 Data Sheet, Rev. 3
Freescale Semiconductor
207