HT45F5R datasheet(14/138 Pages) HOLTEK

14 / 138 page

Rev. 1.10

De�e��e� 1�� 01�

Rev. 1.10

De�e��e� 1�� 01�

HT45F5R

Charger ASSP Flash MCU

HT45F5R

Charger ASSP Flash MCU

A.C. Characteristics

Ta=�5°C

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

VDD

Condition

fSYS

Syste� Clo�k (HIRC)

�.4V ~ 5.5V fSYS=fHIRC=8MHz

—

MHz

Syste� Clo�k (LIRC)

�.�V ~ 5.5V fSYS=fLIRC=��kHz

—

��

—

kHz

fHIRC

High Speed Inte�nal RC

Os�illato� (HIRC)

�V/5V

Ta=�5°C

- �%

+ �%

MHz

�V/5V

Ta=0°C ~ 70°C

- 5%

+ 5%

MHz

�.�V ~ 5.5V Ta=0°C ~ 70°C

- 8%

+ 8%

MHz

�.�V ~ 5.5V Ta= -40°C ~ 85°C

- 1�%

+ 1�% MHz

fLIRC

Low Speed Inte�nal RC

Os�illato� (LIRC)

�.�V ~ 5.5V Ta= -40°C ~ 85°C

��

kHz

tRSTD

Syste� Reset Delay Ti�e

(POR Reset� LVR Ha�dwa�e

Reset� WDT Softwa�e Reset)

—

100

�s

Syste� Reset Delay Ti�e

(WDT Ti�e-out Ha�dwa�e Cold

Reset)

—

1�.7

�s

tSST

Syste� Sta�t-up Ti�e� Pe�iod

(Wake-up f�o� Powe� Down

Mode and fSYS off)

—

fSYS=fH ~ fH / �4�

fH=fHIRC

1�

—

tHIRC

—

fSYS=fSUB=fLIRC

�

—

tLIRC

Syste� Sta�t-up Ti�e� Pe�iod

(Wake-up f�o� Powe� Down

Mode and fSYS on)

—

fSYS=fLIRC

�

—

tsys

tINT

Exte�nal Inte��upt Mini�u�

Pulse Width

—

0.�

—

μs

tEERD

EEPROM Read Ti�e

—

�

tSYS

tEEWR

EEPROM W�ite Ti�e

—

�

�s

tTCK

STCK and PTCKn Pin Mini�u�

Pulse Width

—

0.�

—

μs

tTPI

STPI and PTPnI Pin Mini�u�

Pulse Width

—

0.�

—

μs

Note:1.tSYS=1/fSYS.

2.TomaintaintheaccuracyoftheinternalHIRCoscillatorfrequency,a0.1μFdecouplingcapacitorshould

beconnectedbetweenVDDandVSSandlocatedasclosetothedeviceaspossible.

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