MCP2140-ISO datasheet(28/58 Pages) MICROCHIP

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MCP2140

DS21790A-page 28

Preliminary

 2003 Microchip Technology Inc.

4.1

DC Characteristics (Continued)

DC Specifications

Electrical Characteristics:

Standard Operating Conditions (unless otherwise specified)

Operating temperature: -40°C

≤ TA ≤ +85°C (industrial)

Operating voltage VDD range as described in DC spec Section 4.1.

Param

No.

Sym

Characteristic

Min

Typ

Max

Units

Conditions

Input Low Voltage

VIL

Input pins

D030

with TTL buffer

(TX, RI, DTR, RTS, and CD)

VSS

—

0.8V

4.5V

≤ VDD ≤ 5.5V

D030A

VSS

—

0.15 VDD

otherwise

D032

RESET

VSS

—

0.2 VDD

D033

OSC1

VSS

—

0.3 VDD

Input High Voltage

VIH

Input pins

—

D040

with TTL buffer

(TX, RI, DTR, RTS, and CD)

2.0

—

VDD

4.5V

≤ VDD ≤ 5.5V

D040A

0.25 VDD

+ 0.8

—

VDD

otherwise

D042

RESET

0.8 VDD

—

VDD

D043

OSC1

0.7 VDD

—

VDD

Input Leakage Current

(Notes 1, 2)

D060

IIL

Input pins

—

±1

µA

VSS

≤ VPIN ≤ VDD, pin at

high-impedance.

D061

RESET

—

±5

µA

VSS

≤ VPIN ≤ VDD

D063

OSC1

—

±5

µA

VSS

≤ VPIN ≤ VDD

Output Low Voltage

D080

VOL

TXIR, RX, DSR, and CTS pins

—

0.6

IOL = 8.5 mA, VDD = 4.5V

D083

OSC2

—

0.6

IOL = 1.6 mA, VDD = 4.5V

Output High Voltage (Note 2)

D090

VOH

TXIR, RX, DSR, and CTS pins

VDD - 0.7

—

IOH = -3.0 mA, VDD = 4.5V

D092

OSC2

VDD - 0.7

—

IOH = -1.3 mA, VDD = 4.5V

Capacitive Loading Specs on

Output Pins

D100

COSC2 OSC2 pin

—

When external clock is

used to drive OSC1.

D101

CIO

All Input or Output pins

—

Note 1: The leakage current on the RESET pin is strongly dependent on the applied voltage level. The specified

levels represent normal operating conditions. Higher leakage current may be measured at different input

voltages.

2: Negative current is defined as coming out of the pin.

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