1

Date: 02/24/05

SP3222E, SP3232E True +3.0 to +5.0V RS-232 Transceivers

© Copyright 2005 Sipex Corporation

True +3.0V to +5.5V RS-232 Transceivers

SP3222E/3232E

DESCRIPTION

FEATURES

■ Meets true EIA/TIA-232-F Standards

from a +3.0V to +5.5V power supply

■ Minimum 120Kbps Data Rate Under Full

Load

■ 1µA Low-Power Shutdown with Receivers

Active (SP3222E)

■ Interoperable with RS-232 down to +2.7V

power source

■ Enhanced ESD Specifications:

±15kV Human Body Model

±15kV IEC1000-4-2 Air Discharge

±8kV IEC1000-4-2 Contact Discharge

The SP3222E/3232E series is an RS-232 transceiver solution intended for portable or hand-

held applications such as notebook or palmtop computers. The SP3222E/3232E series has

a high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V

operation. This charge pump allows the SP3222E/3232E series to deliver true RS-232

performance from a single power supply ranging from +3.3V to +5.0V. The SP3222E/3232E

are 2-driver/2-receiver devices. This series is ideal for portable or hand-held applications such

as notebook or palmtop computers. The ESD tolerance of the SP3222E/3232E devices are

over ±15kV for both Human Body Model and IEC1000-4-2 Air discharge test methods. The

SP3222E device has a low-power shutdown mode where the devices' driver outputs and

charge pumps are disabled. During shutdown, the supply current falls to less than 1µA.

SELECTION TABLE

L

E

D

O

Ms

e

i

l

p

p

u

S

r

e

w

o

P

2

3

2

-

S

R

s

r

e

v

i

r

Ds

r

e

v

i

r

D

s

r

e

v

i

r

D

s

r

e

v

i

r

Ds

r

e

v

i

r

D

2

3

2

-

S

R

s

r

e

v

i

e

c

e

Rs

r

e

v

i

e

c

e

R

s

r

e

v

i

e

c

e

R

s

r

e

v

i

e

c

e

Rs

r

e

v

i

e

c

e

R

l

a

n

r

e

t

x

E

s

t

n

e

n

o

p

m

o

Cs

t

n

e

n

o

p

m

o

C

s

t

n

e

n

o

p

m

o

C

s

t

n

e

n

o

p

m

o

Cs

t

n

e

n

o

p

m

o

C

n

w

o

d

t

u

h

S

L

T

T

e

t

a

t

S

-

3e

t

a

t

S

-

3

e

t

a

t

S

-

3

e

t

a

t

S

-

3e

t

a

t

S

-

3

f

o

.

o

N

s

n

i

Ps

n

i

P s

n

i

P s

n

i

Ps

n

i

P

2

2

2

3

P

S

V

5

.

5

+

o

t

V

0

.

3

+2

2

4

s

e

Ys

e

Y0

2

,

8

1

2

3

2

3

P

S

V

5

.

5

+

o

t

V

0

.

3

+2

2

4

o

No

N6

1

®

V-

1

2

3

4

15

16

17

18

5

6

7

14

13

12

SHDN

C1+

V+

C1-

C2+

C2-

EN

R1IN

GND

T1OUT

8

9

10

11

R2IN

SP3222E

T2OUT

T2IN

T1IN

R1OUT

DIP/SO

R2OUT

Note: See page 6 for other pinouts

Now Available in Lead Free Packaging