Absolute Maximum Ratings

Storage Temperature ............................

-50°Cto125°C

Operating Temperature...........................

-40°Cto85°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

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

¾¾

2.2

¾

3.6

V

Operating Current

3V

¾

35

mA

Standby Current (WDT Enabled)

3V

No load, system HALT

¾

510

mA

Standby Current (WDT Disabled)

3V

No load, system HALT

¾

0.1

1

mA

Input Low Voltage for I/O Ports

¾¾

0

¾

V

Input High Voltage for I/O Ports

¾¾

¾

V

Input Low Voltage (RES Ports)

¾¾

0

¾

V

Input High Voltage (RES Ports)

¾¾

¾

V

I/O Port Sink Current

3V

510

¾

mA

I/O Port Source Current

3V

-2

-5

¾

mA

I/O Port Source Current

3V

-4

-8

¾

mA

Pull-high Resistance

3V

¾

40

60

80

k

W

A.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

System Clock

3V

¾

400

¾

4000

kHz

Timer I/P Frequency

(TMR0/TMR1)

3V

50% duty

0

¾

4000

kHz

Watchdog Oscillator

3V

¾

45

90

180

ms

Watchdog Time-out Period

(WDT OSC)

3V

Without WDT prescaler

11.5

23

46

ms

¾

1024

¾

External Reset Low Pulse Width

¾¾

1

¾¾

ms

System Start-up Timer Period

¾

Power-up, reset or

wake-up from HALT

¾

1024

¾

Interrupt Pulse Width

¾¾

1

¾¾

ms

Data ROM Access Time

¾¾

1

¾¾

ms

HT48RA3

Rev. 1.20

3

May 12, 2003