HT32F1253_12 datasheet(26/35 Pages) HOLTEK

26 / 35 page

Rev. 1.10

�6 of �5

��i� 1�� 01�

��-bit �RM Co�tex™-M� MCU

HT��F1�51/51B/5�/5�

PLL Characteristics

Table 12. PLL Characteristics

T� = �5°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLLIN

PLL in�ut c�ock f�equency

PLLVDD18 = 1.8V

—

MHz

fPLL

PLL out�ut c�ock f�equency

PLLVDD18 = 1.8V

—

144

MHz

tLOCK

PLL �ock time

PLLVDD18 = 1.8V

—

TBD

—

Memory Characteristics

Table 13. Flash Memory Characteristics

T� = �5°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

NENDU

Numbe� of gua�anteed

��og�am /e�ase cyc�es befo�e

fai�u�e. (Endu�ance)

VDD18 =1.8V�

T�= -40°C ~ +85°C

—

kcyc�es

TRET

Data �etention time

T� = �5°C

100

—

Yea�s

tPROG

Wo�d ��og�amming time

VDD18 = 1.8V�

T� = -40°C ~ +85°C

—

μs

tER�SE

Page e�ase time

VDD18 = 1.8V�

T� = -40°C ~ +85°C

�0

—

tMER�SE

Mass e�ase time

VDD18 = 1.8V�

T� = -40°C ~ +85°C

�0

—

I/O Port Characteristics

Table 14. I/O Port Characteristics

T� = �5°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

IIL

Low �eve� in�ut cu��ent

�.�V IO

VI = 0V� On-chi�

�u��-u� �esiste�

disab�ed.

—

�

μA

5V-to�e�ant IO

—

�

μA

Reset �in

—

�

μA

IIH

High �eve� in�ut cu��ent

�.�V IO

VI = VDD�� On-chi�

�u��-down �esiste�

disab�ed.

—

�

μA

5V-to�e�ant IO

—

�

μA

Reset �in

—

�

μA

VIL

Low �eve� in�ut vo�tage

�.�V IO

-0.�

—

0.8

5V-to�e�ant IO

-0.�

—

0.8

Reset �in

-0.�

—

0.8

VIH

High �eve� in�ut vo�tage

�.�V IO

�

—

�.6

5V-to�e�ant IO

�

—

5.5

Reset �in

�

—

5.5

VHYS

Schmitt T�igge� In�ut

Vo�tage Hyste�esis

�.�V IO

—

400

—

5V-to�e�ant IO

—

400

—

Reset �in

—

400

—

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