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TC3232

The TC3232 has two receivers and two drivers, and a dual charge-pump circuit. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector.

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Features:
• Meets the Requirements of TIA/EIA-232-F and ITU V.28 Standards • Exceeds ±8KV ESD Protection (HBM) for RS-232 I/O Pins • Operates With 3.0V to 5.5V VCC Supply • Operates Up To 250kbit/s Data Rate • Two Drivers and Two Receivers • External Capacitors 4×0.1μF • Accepts 5.0V Logic Input With 3.3V Supply
Applications:
• Notebook, Subnotebook, and Palmtop Computers • High-Speed Modems • Battery-Powered Equipment • Hand-Held Equipment • Peripherals • Printers

Absolute Maximum Rating

Parameter

Symbol

Rating

Units

Power Supply

VCC

-0.3 to +6.0

V

Positive Output Supply Voltage (Note 2)

V+

-0.3 to +7.0

V

Negative Output Supply Voltage (Note 2)

V-

+0.3 to -7.0

V

Supply Voltage Difference (Note 2)

V+ - V-

+13

V

Input Voltage

Drivers

VIN

-0.3 to +6.0

V

Receivers

-25 to +25

Output Voltage

Drivers

VOUT

-13.2 to +13.2

V

Receivers

-0.3 to VCC+0.3

Operating Junction Temperature

TJ

-40 to +85

℃

Storage Temperature

TSTG

-65 to +150

℃

Notes:

1.        Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2.        All voltages are with respect to network GND.

 

Electrical Performance (VCC=+5V±5℅, TA=-40℃～+85℃，Typical Values are VCC=+5V and TA＝25℃)

Parameter

Symbol

Conditions

MIN

TYP
(Note 1)

MAX

UNITS

Input leakage current

IIN

DIN

-

±0.01

±1

μA

Supply current

ICC

No Load

-

0.3

1.0

mA

Driver

High-Level Output Voltage

VOH

DOUT at RL = 3 kΩ to GND, DIN = GND

+5.0

+5.4

-

V

Low-Level Output Voltage

VOL

DOUT at RL = 3 kΩ to GND, DIN = VCC

-5.0

-5.4

-

V

High-Level Input Current

IOH

VI = VCC

-

±0.01

±1

μA

Low-Level Input Current

IOL

VI at GND

-

±0.01

±1

μA

Short-Circuit Output Current (Note 2)

IOS

VCC = 3.6 V, VOUT = 0 V

-

±35

±60

mA

VCC = 5.5 V, VOUT = 0 V

-

±35

±60

Output Resistance

rO

VCC, V+ and V- = 5.5 V,
VOUT = ±2.0 V

300

10M

-

Ω

Output Leakage Current

IOFF

VCC = 3.0 V to 5.5 V,
VOUT = ±12.0 V

-

-

±25

μA

Receiver

High-Level Output Voltage

VOH

IOH = -1.0 mA

Vcc – 0.6V

Vcc – 0.1V

-

V

Low-Level Output Voltage

VOL

IOL = 1.6 mA

-

-

0.4

mV

Positive-Going Input Threshold Voltage

VIT+

VCC = 3.3 V

-

1.5

2.4

V

VCC = 5.0V

-

1.8

2.4

Negative-Going Input Threshold Voltage

VIT-

VCC = 3.3 V

0.6

1.2

-

V

VCC = 5.0V

0.8

1.5

-

Input Hysteresis

VHYS

VIT+ to VIT-

-

0.3

-

V

Output Leakage Current

IOFF

-

-

±0.05

±10

μA

Input Resistance

RI

VI =±3.0 V to ±25V

3

5

7

kΩ

Notes:

1.        All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C.

2.        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.

3.        Test conditions are C1~C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at VCC=5.0V±0.5V.

4.        Pulse skew is defined as |tPLH−tPHL| of each channel of the same device.

 

Switeching Characteristics (VCC=+5V±5℅, TA=-40℃～+85℃，Typical Values are VCC=+5V and TA＝25℃)

Parameter

Symbol

Conditions

MIN

TYP
(Note 1)

MAX

UNITS

Driver

Maximum Data Rate

-

CL = 1000 pF, RL = 3 kΩ, One Driver Switching

150

250

-

Kbit/s

Pulse Skew (Note 4)

tSK(P)

CL = 220 pF to 2500 pF, RL = 3 kΩto 7 kΩ

-

300

-

ns

Slew Rate, Transition Region

SR(tr)

RL = 3 kΩto 7 kΩ, VCC = 3.3 V

CL = 220 pF to 1000 pF

5

-

35

V/μs

CL = 220 pF to 2500 pF

3

-

35

Receiver

Propagation Delay Time, Low to High-Level Output

tPLH

CL = 150 pF

-

300

-

ns

Propagation Delay Time, High to Low-Level Output

tPHL

CL = 150 pF

-

300

-

ns

Output Enable Time

tEN

CL = 150 pF, RL = 3 kΩ

-

200

-

ns

Output Disable Time

tDIS

CL = 150 pF, RL = 3 kΩ

-

200

-

ns

Pulse Skew (Note 4)

tSK(P)

| tPLH - tPHL |

-

300

-

ns

Notes:

1.        All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C.

2.        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.

3.        Test conditions are C1~C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at VCC=5.0V±0.5V.

4.        Pulse skew is defined as |tPLH−tPHL| of each channel of the same device.

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