www.ti.com

DRIVER SECTION

Electrical Characteristics

(1)

Switching Characteristics

(1)

TRSF23243

3-V TO 5.5-V DUAL RS-232 PORT

SLLS855 – AUGUST 2007

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 7)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

High-level output

5

5.4

V

voltage

Low-level output

–5

–5.4

V

voltage

Output voltage

±5

V

(mouse driveability)

3-k

Ω to GND at DOUT3, DOUT1 = DOUT2 = –2.5 mA

±0.01

±1

μA

Low-level input current

±0.01

±1

μA

Short-circuit output

±35

±60

mA

Output resistance

300

10M

Ω

±25

Output leakage current

FORCEOFF = GND,

μA

±25

(1)

Test conditions are C1–C4 = 0.1

(2)

(3)

Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one

output should be shorted at a time.

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 7)

PARAMETER

TEST CONDITIONS

UNIT

Maximum data rate

250

kbit/s

One DOUT switching

See Figure 2

See Figure 2

100

ns

Slew rate,

6

30

SR(tr)

transition region

V/

μs

4

30

(see Figure 2)

(1)

Test conditions are C1–C4 = 0.1

(2)

(3)

6

Submit Documentation Feedback