PC87383 datasheet(67/77 Pages) NSC

Part #	PC87383

Description	Legacy-Reduced SuperI/O with Fast Infrared Port, Serial Port, Parallel Port and GPIOs for Portable Applications

PDF	77 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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67 / 77 page

7.0 Device Characteristics (Continued)

Revision 1.1

www.national.com

7.3.1

Pull-Up Resistor

Symbol: PUnn

7.3.2

Pull-Down Resistor

Symbol: PDnn

7.4 AC ELECTRICAL CHARACTERISTICS

7.4.1

AC Test Conditions

Figure 16. AC Test Conditions, TA =0 °Cto70 °C, VDD = 3.3 V ±10%

Notes:

1. CL = 50 pF for all output pins; this value includes both jig and oscilloscope capacitance.

2. S1 = Open for push-pull output pins.

S1 = VDD for high impedance to active low and active low to high impedance measurements.

S1 = GND for high impedance to active high and active high to high impedance measurements.

RL = 1.0 KΩ for all the pins.

Symbol

Parameter

Conditions1

1. TA = 0

°C to 70°C, V

SUP = 3.3V.

Min2

2. Not tested. Guaranteed by characterization.

Typical

Max2

Unit

RPU

Pull-up equivalent resistance

VPIN =0V

−

30%

nn + 30%

Ω

VPIN = 0.8 VSUP

−

38%

Ω

VPIN = 0.17 VSUP

3. For strap pins only.

−

35%

Ω

Symbol

Parameter

Conditions1

1. TA = 0

°C to 70°C, V

SUP = 3.3V.

Min2

2. Not tested. Guaranteed by characterization.

Typical

Max2

Unit

RPD

Pull-down equivalent resistance

VPIN =VSUP

− 30%

nn + 30%

Ω

Device

Under

Test

0.1

µF

Input

Output

Load Circuit (Notes 1, 2)

AC Testing Input, Output Waveform

VDD

2.4

0.4

2.0

0.8

Test Points

2.0

0.8

PC87383 Datasheet(PDF) 67 Page - National Semiconductor (TI)

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