SN74AVCB164245-Q1 Datasheet, PDF (8/14 Pages) Texas Instruments – 16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SN74AVCB164245-Q1
SCES809A – MARCH 2010 – REVISED MAY 2010
Operating Characteristics
V_CCA and V_CCB = 3.3 V, T_A = 25°C
PARAMETER
C_pdA
(V_CCA)
Power dissipation capacitance per transceiver,
A-port input, B-port output
Power dissipation capacitance per transceiver,
B-port input, A-port output
C_pdB
(V_CCB)
Power dissipation capacitance per transceiver,
A-port input, B-port output
Power dissipation capacitance per transceiver,
B-port input, A-port output
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Outputs enabled
Outputs disabled
Outputs enabled
Outputs disabled
Outputs enabled
Outputs disabled
Outputs enabled
Outputs disabled
TEST CONDITIONS
C_L = 0, f = 10 MHz
C_L = 0, f = 10 MHz
TYP UNIT
14
7
pF
20
7
20
7
pF
14
7
Output Description
The 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. Figure 1 shows typical V_OL vs
I_OL and V_OH vs I_OH curves to illustrate the output impedance and drive capability 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.
3.2 _{TA = 25°C}
2.8 ^{Process = Nominal}
2.4
2.0
V_CC = 3.3 V
T_A = 25°C
2.8 Process = Nominal
2.4
2.0
1.6
V_CC = 2.5 V
1.2
V_CC = 1.8 V
0.8
0.4
0 17 34 51 68 85 102 119 136 153 170
I_OL − Output Current − mA
1.6
1.2
0.8
V_CC = 3.3 V
0.4
V_CC = 2.5 V
V_CC = 1.8 V
−160 −144 −128 −112 −96 −80 −64 −48 −32 −16 0
I_OH − Output Current − mA
Figure 1. Typical Output Voltage vs Output Current
8
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