TL16C554A, TL16C554AI

ASYNCHRONOUS-COMMUNICATIONS ELEMENT

SLLS509A – AUGUST 2001 – REVISED JULY 2003

7

POST OFFICE BOX 655303

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

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.75

5

5.25

V

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

2

VCC

V

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

– 0.5

0.8

V

High-level input voltage, VIH

2

VCC

V

Low-level input voltage, VIL

– 0.5

0.8

V

Clock frequency, fclock

16

MHz

Operating free-air temperature TA

TL16C554A

0

70

°C

O erating free-air tem erature, TA

TL16C554AI

–40

85

°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

V

VOL‡

Low-level output voltage

IOL = 1.6 mA

0.4

V

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

50

mA

Ci(XTAL1)

Clock input capacitance

15

20

pF

Co(XTAL2) Clock output capacitance

VCC = 0, VSS = 0, all other terminals grounded,

20

30

pF

Ci

Input capacitance

CC

SS

g

f = 1 MHz, TA = 25°C

6

10

pF

Co

Output capacitance

10

20

pF

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

‡ These parameters apply for all outputs except XTAL2.