XRT7250 datasheet(37/463 Pages) EXAR

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XRT7250

DS3/E3 FRAMER IC

áç

REV. 1.1.1

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUMS

ABSOLUTE MAXIMUM RATINGS:

Power Supply............................................ -0.5V to +6.5V

Power Dissipation TQFP Package........................... 1.2W

Storage Temperature ...............................-65°C to 150°C

Input Voltage (Any Pin) .....................-0.5V to VDD + 0.5V

voltage at Any Pin .......................... -0.5V to VDD + 0.5V

Input Current (Any Pin) ...................................... + 100mA

DC ELECTRICAL CHARACTERISTICS

Test Conditions: TA = 25(C, VCC = 5.0V + 5% unless otherwise specified

SYMBOL

PARAMETER

MIN.TYP.MAX.UNITS

CONDITIONS

ICC

Power Supply Current

160

ILL

Data Bus Tri-State Bus Leakage Current

µA

VIL

Input Low voltage

0.8

VIH

Input High Voltage

2.0

VCC

VOL

Output Low Voltage

0.0

0.4

IOL = -1.6mA

VOH

Output High Voltage

2.4

VCC

IOH = 40µA

IOC

Open Drain Output Leakage Current

µA

IIH

Input High Voltage Current

-10

µA

VIH = VCC

IIL

Input Low Voltage Current

-10

µA

VIL = GND

AC ELECTRICAL CHARACTERISTICS

Test Conditions: TA = 25(C, VCC = 5.0V + 5% unless otherwise specified

SYMBOL

PARAMETER

MIN.TYP.MAX.UNITS

CONDITIONS

Transmit Payload Data Input Interface - Loop-Timed/Serial Mode (See Figure 1)

Payload data (TxSer) set-up time to rising edge of

RxOutClk

1ns

Payload data (TxSer) hold time, from rising edge of

RxOutClk

4ns

RxOutClk to TxFrame output delay

RxOutClk to TxOHInd output delay

Transmit Payload Data Input Interface - Local Timed/Serial Mode (See Figure 2)

Payload data (TxSer) set-up time to rising edge of

"TxInClk"

2ns

Payload data (TxSer) hold time, from rising edge of

"TxInClk"

6ns

"TxFrameRef" set-up time to rising edge of "TxInClk"

Framer IC is

"Frame Slave"

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