Absolute Maximum Ratings - Holtek HT66F20 Manual

Pin Name Function
AVDD ADC power s�pply*
VSS Gro�nd**
AVSS ADC gro�nd**
Note: I/T: Input type;
OP: Optional by configuration option (CO) or register option
PWR: Power;
CMOS: CMOS output;
SCOM: Software controlled LCD COM;
HXT: High frequency crystal oscillator
LXT: Low frequency crystal oscillator
*: VDD is the device power supply while AVDD is the ADC power supply. The AVDD pin is bonded
together internally with VDD.
**: VSS is the device ground pin while AVSS is the ADC ground pin. The AVSS pin is bonded together
internally with VSS.
As the Pin Description Summary table applies to the package type with the most pins, not all of the above
listed pins may be present on package types with smaller numbers of pins.

Absolute Maximum Ratings

Supply Voltage ................................................................................................V
Input Voltage ..................................................................................................V
Storage Temperature . ...................................................................................................-50˚C to 125˚C
Operating Temperature . .................................................................................................-40˚C to 85˚C
I Total ....................................................................................................................................-80mA
OH
I Total ..................................................................................................................................... 80mA
OL
Total Power Dissipation ........................................................................................................ 500mW
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum
Ratings" may cause substantial damage to these devices. Functional operation of these devices at
other conditions beyond those listed in the specification is not implied and prolonged exposure to
extreme conditions may affect devices reliability.
Rev. 2.50
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
OP I/T O/T
— PWR —
— PWR —
— PWR —
O/T: Output type
CO: Configuration option; ST: Schmitt Trigger input
NMOS: NMOS output
AN: Analog signal
22
Pin-Shared Mapping
—
—
—
−0.3V to V +6.0V
SS SS
−0.3V to V +0.3V
SS DD
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