HT82B40R datasheet(4/57 Pages) HOLTEK

4 / 57 page

D.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

VDD

Operating Voltage (Crystal OSC)

¾ fSYS=6MHz or 12MHz

3.3

5.5

IDD

Operating Current

No load, fSYS=6MHz

6.5

No load, fSYS=12MHz

7.5

ISTB

Standby Current

NO load, system USB

suspend, set CLK_adj

[22H]

²*²

¾¾

400

Standby Current

(WDT Enabled)

No load, system HALT,

input/output mode, set

SUSP2 & CLK_adj [22H]

¾¾

VIL

Input Low Voltage for PA, PC

where VDDIO=VDD

or V33O by option for PB

0.8

Input Low Voltage for PB

0.3VDDIO

Input Low Voltage for RES pin

0.4VDD

VIH

Input High Voltage for PA, PC

where VDDIO=VDD

or V33O by option for PB

Input High Voltage for PB

0.8VDDIO

VDDIO

Input High Voltage for RES pin

0.9VDD

VDD

VLVR

Low Voltage Reset

2.0

2.6

3.2

VV33O

3.3V Regulator Output for

USB SIE

IV33O=70mA

3.0

3.3

3.6

IOL1

Output Sink Current for Port PB

VOL=0.4V

IOL2

Output Sink Current for Port PA0

VOL=0.4V

612

IOL3

Output Sink Current for Port

PA1~PA7,PC, PD and PE0~PE1

VOL=0.4V

IOH1

Output Source Current for Port PB

VOH=3.4V

-20

-40

IOH2

Output Source Current for Port

PA0

VOH=3.4V

-10

-20

IOH3

Output Source Current for Port

PA1~PA7,PC,PD and PE0~PE1

VOH=3.4V

-2

-4

RPH

Pull-high Resistance for CLK,

DATA

4.7

Pull-high Resistance for PB

Pull-high Resistance for PA, PC,

PD and PE0~PE1

Note:

²*² include 15kW loading on the USBD+, USBD- lines at the host terminal.

HT82B40R/HT82B40A

Rev. 1.10

September 4, 2009

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