TL16C554APNR datasheet(10/46 Pages) TI1

10 / 46 page

TL16C554A, TL16C554AI

ASYNCHRONOUS-COMMUNICATIONS ELEMENT

SLLS509E − AUGUST 2001 − REVISED JUNE 2010

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

read cycle timing requirements over recommended ranges of operating free-air temperature and

supply voltage (see Figure 4)

MIN

MAX

UNIT

tw4

Pulse duration, IOR low

tsu1

Setup time, CSx valid before IOR low (see Note 2)

tsu2

Setup time, A2 − A0 valid before IOR low (see Note 2)

th1

Hold time, A2 − A0 valid after IOR high (see Note 2)

th2

Hold time, CSx valid after IOR high (see Note 2)

td1

Delay time, tsu2 + tw4 + td2 (see Note 3)

140

td2

Delay time, IOR high to IOR or IOW low

NOTES:

2. The internal address strobe is always active.

3. In the FIFO mode, td1 = 425 ns (min) between reads of the receiver FIFO and the status registers (interrupt-identification register

and line-status register).

write cycle timing requirements over recommended ranges of operating free-air temperature and

supply voltage (see Figure 5)

MIN

MAX

UNIT

tw5

Pulse duration, IOW

↓

tsu3

Setup time, CSx valid before IOW

↓ (see Note 2)

tsu4

Setup time, A2 − A0 valid before IOW

↓ (see Note 2)

tsu5

Setup time, D7 − D0 valid before IOW

↑

th3

Hold time, A2 − A0 valid after IOW

↑ (see Note 2)

th4

Hold time, CSx valid after IOW

↑ (see Note 2)

th5

Hold time, D7 − D0 valid after IOW

↑

td3

Delay time, tsu4 + tw5 + td4

120

td4

Delay time, IOW

↑ to IOW or IOR↓

NOTE 2: The internal address strobe is always active.

read cycle switching characteristics over recommended ranges of operating free-air temperature

and supply voltage, CL = 100 pF (see Note 4 and Figure 4)

PARAMETER

MIN

MAX

UNIT

ten

Enable time, IOR

↓ to D7−D0 valid

tdis

Disable time, IOR

↑ to D7−D0 released

NOTE 4: VOL and VOH (and the external loading) determine the charge and discharge time.

TL16C554APNR bảng dữ liệu(PDF) 10 Page - Texas Instruments

TL16C554APNR bảng dữ liệu(HTML) 10 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

bảng dữ liệu tải về

Link URL