HT45F2020 datasheet(10/85 Pages) HOLTEK

10 / 85 page

Rev. 1.00

April 11, 2017

Rev. 1.00

April 11, 2017

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VDD

Conditions

VIH

Input High Voltage for I/O Ports

—

3.5

—

0.8VDD —

VDD

IOL

Sink Current for I/O Port

3V VOL=0.1VDD

—

5V VOL=0.1VDD

—

IOH

Source Current for I/O Ports

3V VOH=0.9VDD

-3

-6

—

5V VOH=0.9VDD

-7

-14

—

RPH

Pull-high Resistance for I/O Ports and

OCDS pins

—

100

kΩ

—

kΩ

ILEAK

Input Leakage Current

VIN=VDD or VIN=VSS

—

±1

μA

—

±1

μA

IOCDS

Operating Current (Normal Mode)

3V No load, f

SYS

=fHIRC=8MHz,

WDT enable

—

1.4

2.0

Note:FortheHT45F2020anexternalresistorshouldbeseriallyconnectedbetweenthesupplypowerandVDD

pin.Refertothe“ShuntRegulator”sectionforthedetails.

A.C. Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VDD

Conditions

fSYS

System Clock (HIRC)

2.2V~5.5V fSYS=fHIRC=8MHz

—

MHz

System Clock (LIRC)

2.2V~5.5V fSYS=fLIRC=32kHz

—

kHz

fHIRC

High Speed Internal RC Oscillator

(HIRC)

3V/5V

Ta=25°C

-2%

+2% MHz

3V/5V

Ta=0°C to 70°C

-5%

+5% MHz

2.2V~5.5V Ta=0°C to 70°C

-8%

+8% MHz

2.2V~5.5V Ta=-40°C to 85°C

-12%

+12% MHz

fLIRC

Low Speed Internal RC Oscillator

(LIRC)

2.2V~5.5V Ta=-40°C ~ 85°C

kHz

2.2V~5.5V Ta=-40°C ~ 85°C

kHz

tTCK

PTCK Input Pin Minimum Pulse Width

—

0.3

—

μs

tTPI

PTPI Input Pin Minimum Pulse Width

—

0.3

—

μs

tRSTD

System Reset Delay Time

(POR Reset, WDT Software Reset)

—

100

System Reset Delay Time

(WDT Time-out Hardware Cold Reset)

—

8.3

16.7 33.3

tSST

System Start-up Timer Period (Wake-up

from Power Down Mode and fSYS Off)

—

fSYS=fH ~ fH/64, fH=fHIRC

—

tHIRC

—

fSYS=fSUB=fLIRC

—

tLIRC

System Start-up Timer Period

(Slow Mode ↔ Normal Mode)

—

fHIRC off → on

(HIRCF=1)

—

tHIRC

System Start-up Timer Period (Wake-up

from Power Down Mode and fSYS On)

—

fSYS=fH ~ fH/64, fSYS=fHIRC

—

fSYS=fLIRC

—

fSUB

System Start-up Timer Period

(WDT Time-out Hardware Cold Reset)

—

tSRESET

Minimum Software Reset Width to Reset

—

250

μs

Note:1.tSYS=1/fSYS

2.TomaintaintheaccuracyoftheinternalHIRCoscillatorfrequency,a0.1μFdecouplingcapacitorshould

beconnectedbetweenVDDandVSSandlocatedasclosetothedeviceaspossible.

HT45F2020 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc

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