TL16C554APNR datasheet(8/46 Pages) TI1

8 / 46 page

TL16C554A, TL16C554AI

ASYNCHRONOUS-COMMUNICATIONS ELEMENT

SLLS509E − AUGUST 2001 − REVISED JUNE 2010

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

recommended operating conditions, standard voltage (5 V-nominal)

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.75

5.25

Clock high-level input voltage at XTAL1, VIH(CLK)

VCC

Clock low-level input voltage at XTAL1, VIL(CLK)

− 0.5

0.8

High-level input voltage, VIH

VCC

Low-level input voltage, VIL

− 0.5

0.8

Clock frequency, fclock

MHz

Operating free air temperature T

TL16C554A

°C

Operating free-air temperature, TA

TL16C554AI

−40

°C

electrical characteristics over recommended ranges of operating free-air temperature and supply

voltage, standard voltage (5-V nominal) (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VOH‡

High-level output voltage

IOH = − 1 mA

2.4

VOL‡

Low-level output voltage

IOL = 1.6 mA

0.4

IIkg

Input leakage current

VCC = 5.25 V,

GND = 0,

VI = 0 to 5.25 V,

All other terminals floating

±10

μA

IOZ

High-impedance output

current

VCC = 5.25 V,

GND = 0,

VO = 0 to 5.25 V,

Chip selected in write mode or chip deselected

±20

μA

ICC

Supply current

VCC = 5.25 V,

TA = 25°C,

RX, DSR, DCD, CTS, and RI at 2 V,

All other inputs at 0.8 V, XTAL1 at 4 MHz,

No load on outputs,

Baud rate = 50 kilobits per second

Ci(XTAL1)

Clock input capacitance

Co(XTAL2)

Clock output capacitance

VCC = 0,

VSS = 0, all other terminals grounded,

Input capacitance

VCC = 0,

VSS = 0, all other terminals grounded,

f = 1 MHz, TA = 25°C

Output capacitance

† All typical values are at VCC = 5 V, TA = 25°C.

‡ These parameters apply for all outputs except XTAL2.

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