HT82K94E(2005) 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT82K94E
(Rev.:2005)

USB Multimedia Keyboard Encoder 8-Bit MCU

Holtek Semiconductor 

HT82K94E/HT82K94A

Pin Name I/O

VSS

¾

RES

I

VDD

¾

V33O

O

USBD+/CLK I/O

USBD-/DATA I/O

OSC1

I

OSC2

O

ROM Code

Option

¾

¾

¾

¾

¾

¾

¾

Description

Negative power supply, ground

Schmitt trigger reset input. Active low

Positive power supply

3.3V regulator output

USBD+ or PS2 CLK I/O line

USB or PS2 function is controlled by software control register

USBD- or PS2 DATA I/O line

USB or PS2 function is controlled by software control register

OSC1, OSC2 are connected to a 6MHz or 12MHz Crystal/resonator

(determined by software instructions) for the internal system clock.

Absolute Maximum Ratings

Supply Voltage ...........................VSS-0.3V to VSS+6.0V

Input Voltage..............................VSS-0.3V to VDD+0.3V

Storage Temperature ............................-50°C to 125°C

Operating Temperature...............................0°C to 70°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those

listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-

ity.

D.C. Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

VDD

Conditions

Min.

VDD Operating Voltage

¾ fSYS=6MHz

2.2

¾ fSYS=12MHz

2.2

IDD1 Operating Current (6MHz Crystal)

5V No load, fSYS=6MHz

¾

IDD2 Operating Current (12MHz Crystal)

5V No load, fSYS=12MHz ¾

ISTB1 Standby Current (WDT Enabled)

5V

No load, system HALT,

USB suspend

¾

ISTB2 Standby Current (WDT Disabled)

5V

No load, system HALT,

USB suspend

¾

ISTB3 Standby Current (WDT Enabled)

5V

No load, system HALT,

I/O mode

¾

VIL1 Input Low Voltage for I/O Ports

5V TTL level

0

VIH1 Input High Voltage for I/O Ports

5V TTL level

2

VIL2 Input Low Voltage (RES)

5V CMOS level

0

VIH2 Input High Voltage (RES)

5V CMOS level

0.9VDD

IOL1

I/O Port Sink Current for PA1~PA7, PB,

PC, PD

5V

VOL=3.4V

10

IOL2

I/O Port Sink Current for PA1~PA7, PB,

PC, PD

5V

VOL=0.4V

2

IOL3 I/O Port Sink Current for PA0

5V VOL=0.4V

7

Typ.

¾

¾

6.5

7.5

¾

¾

¾

¾

¾

¾

¾

15

4

10

Max.

5.5

5.5

12

16

250

230

15

0.8

5

0.4VDD

VDD

20

8

13

Unit

V

V

mA

mA

mA

mA

mA

V

V

V

V

mA

mA

mA

Rev. 1.00

4

November 22, 2005

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