SN74AVCB324245

32BIT DUALSUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS

SCES485A − AUGUST 2003 − REVISED JUNE 2004

9

POST OFFICE BOX 655303

output description

The dynamic output control (DOC

) circuitry is implemented, which, during the transition, initially lowers the

output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise.

of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that

is equivalent to a high-drive standard-output device. For more information, refer to the TI application reports,

AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control

(DOC

) Circuitry Technology and Applications, literature number SCEA009.

136

−128

−144

−160

0.4

0.8

1.2

1.6

2.0

2.4

2.8

170

153

119

102

85

68

51

34

17

0

0.4

0.8

1.2

1.6

2.0

2.4

2.8

3.2

TA = 25°C

Process = Nominal

IOL − Output Current − mA

VCC = 3.3 V

VCC = 2.5 V

VCC = 1.8 V

TA = 25°C

Process = Nominal

IOH − Output Current − mA

VCC = 3.3 V

VCC = 2.5 V

VCC = 1.8 V

−80

−96

−112

−32

−48

−64

0

−16

Figure 1. Typical Output Voltage vs Output Current