MC68HC08LT8 Datasheet, PDF (143/156 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 16
Electrical Specifications
16.1 Introduction
This section contains electrical and timing specifications.
16.2 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 16.5 5-V DC Electrical Characteristics and 16.6 3-V DC Electrical
Characteristics for guaranteed operating conditions.
Table 16-1. Absolute Maximum Ratings
Characteristic⁽¹⁾
Supply voltage
LCD voltage
Input voltage
Mode entry voltage, IRQ pin
Maximum current per pin excluding V_DD and V_SS
Storage temperature
Maximum current out of V_SS
Maximum current into V_DD
1. Voltages referenced to V_SS.
Symbol
V_DD
V_LCD
V_IN
V_TST
I
T_STG
I_MVSS
I_MVDD
Value
–0.3 to +6.0
V_SS to +6.0
V_SS–0.3 to V_DD +0.3
V_SS–0.3 to +8.5
± 25
–55 to +150
100
100
Unit
V
V
V
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.)
MC68HC08LT8 Data Sheet, Rev. 1
Freescale Semiconductor
143