MCP6549 datasheet(4/44 Pages) MICROCHIP

4 / 44 page

MCP6546/6R/6U/7/8/9

DS21714G-page 4

FIGURE 1-1:

Timing Diagram for the CS

pin on the MCP6548.

FIGURE 1-2:

Propagation Delay Timing

Diagram.

MCP6548 CHIP SELECT (CS) CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2,

VIN– = VSS, RPU =2.74 kΩ to VPU = VDD, and CL = 36 pF (Refer to Figures 1-1 and 1-3).

Parameters

Sym

Min

Typ

Max

Units

Conditions

CS Low Specifications

CS Logic Threshold, Low

VIL

VSS

—0.2

VDD

CS Input Current, Low

ICSL

—5

—

CS = VSS

CS High Specifications

CS Logic Threshold, High

VIH

0.8 VDD

—VDD

CS Input Current, High

ICSH

—1

—

CS = VDD

CS Input High, VDD Current

IDD

—18

—

CS = VDD

CS Input High, GND Current

ISS

—-20

—

CS = VDD

Comparator Output Leakage

IO(LEAK)

—1

—

VOUT = VSS+10V, CS = VDD

CS Dynamic Specifications

CS Low to Comparator Output

Low Turn-on Time

tON

—2

CS = 0.2VDD to VOUT = VDD/2,

VIN– = VDD

CS High to Comparator Output

High Z Turn-off Time

tOFF

—10

—

µs

CS = 0.8VDD to VOUT = VDD/2,

VIN– = VDD

CS Hysteresis

VCS_HYST

—0.6

—

VDD = 5V

VIL

High-Z

tON

VIH

tOFF

VOUT

-20 pA (typ.)

High-Z

ISS

ICS

-20 pA (typ.)

-0.6 µA (typ.)

1 pA (typ.)

5 pA (typ.)

VOL

tPLH

VOUT

VIN–

100 mV

tPHL

VOL

VIN+ = VDD/2

VOH

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