DS3254 datasheet(44/71 Pages) DALLAS

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DS3251/DS3252/DS3253/DS3254

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17.

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Lead with Respect to VSS (except VDD)…………………………………………….-0.3V to +5.5V

Supply Voltage Range (VDD) with Respect to VSS…………………………………………………………..-0.3V to +3.63V

Ambient Operating Temperature Range……………………………………………………………………..-40°C to +85°C

Junction Operating Temperature Range……………………………………………………………………-40°C to +125°C

Storage Temperature Range………………………………………………………………………………...-55°C to +125°C

Soldering Temperature………………………………………………………….See IPC/JEDEC J-STD-020 Specification

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,

and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is

not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device. Ambient operating temperature range

when device is mounted on a four-layer JEDEC test board with no airflow.

Note: The typical values listed in Tables 17-A through 17-J are not production tested.

Table 17-A. Recommended DC Operating Conditions

(TA = -40°C to +85°C)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

VDD

3.135

3.3

3.465

Logic 1, All Other Input Pins

VIH

2.0

5.5

Logic 0, All Other Input Pins

VIL

-0.3

+0.8

Table 17-B. DC Characteristics

(VDD = 3.3V

±5%, TA = -40°C to +85°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DS3251

120

DS3252

150

200

DS3253

220

280

Supply Current (Note 1)

IDD

DS3254

290

360

DS3251

100

DS3252

110

160

DS3253

160

220

Supply Current, Transmitters Tri-Stated

(All

TTSn Low) (Note 2)

IDDTTS

DS3254

210

280

Power-Down Current (All TPD, RPD

Control Bits High)

IDDPD

DS325x

(Note 2)

Lead Capacitance

CIO

Input Leakage, All Other Input Pins

IIL

(Note 3)

-50

+10

Output Leakage (when High-Z)

ILO

(Note 3)

-10

+10

Output Voltage (IO = -4.0mA)

VOH

2.4

VDD

Output Voltage (IO = +4.0mA)

VOL

0.4

Note 1:

TCLKn = STMCLK = 51.84MHz; TXPn/TXNn driving all ones into 75

W resistive loads; analog loopback enabled; all other inputs

at VDD or grounded; all other outputs open.

Note 2:

TCLKn = STMCLK = 51.84MHz; other inputs at VDD or grounded; digital outputs left open circuited.

Note 3:

0V < VIN < VDD for all other digital inputs.

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