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EM78P157N

8-Bit Microcontroller with OTP ROM

ELAN Microelectronics 

EM78P157N

8-Bit Microcontroller with OTP ROM

6.3 Device Characteristics

The graphs provided in the following pages were derived based on a limited number of

samples and are shown herein for reference purposes only and are not guaranteed for

its accuracy. In some graphs, the data may be out of the specified warranted operating

range.

6.3.1 Port 6 Vih/Vil vs. VDD (Input Pin with Schmitt Inverter)

Vih/Vil (Input Pins with Schmitt Inverter)

2.5

Vih max (-40℃ to 85℃)

2 Vih typ 25℃

Vih min (-40℃ to 85℃)

1.5

1

Vil max (-40℃ to 85℃)

0.5

Vil typ 25℃

0

Vil min ( 40℃ to 85℃)

2.5

3

3.5

4

4.5

5

5.5

VDD (Volt)

Fig. 6-1 Graph on Port 6 Vih/Vil vs. VDD

6.3.2 Port 5 Input Threshold Voltage (Vth) vs. VDD

Vth (Input Threshold Voltage) of I/O pins

2

1.5

Max(-40℃ to 85℃)

Typ 25℃

1

Min(-40℃ to 85℃)

0.5

0

2.5

3

3.5

4

4.5

5

5.5

VDD (Volt)

Fig. 6-2 Graph on Port 5 Input Threshold Voltage (Vth) vs. VDD

Product Specification (V1.0) 09.22.2005

(This specification is subject to change without further notice)

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