SN74AVCA164245_07 Datasheet, PDF (8/15 Pages) Texas Instruments – 16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SN74AVCA164245
16-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES395B – JULY 2002 – REVISED OCTOBER 2005
www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, V_CCA = 3.3 V ± 0.3 V (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V_CCB = 1.5 V
± 0.1 V
MIN MAX
V_CCB = 1.8 V
± 0.15 V
MIN MAX
V_CCB = 2.5 V
± 0.2 V
MIN MAX
A
B
1.5 5.9 1.7 5.4 1.5 3.7
t_pd
B
A
1.3 4.5 1.6 3.8 1.5 3.3
A
2.5
7 2.6 6.9 2.1
5
t_en
OE
B
0.8 2.6 1.9
4
2 4.1
A
1.2 5.4 2.2 5.2 1.2 3.3
t_dis
OE
B
1.2 5.4 1.7 4.4 1.5 3.6
V_CCB = 3.3 V
± 0.3 V
MIN MAX
1.4 3.1
1.4 3.1
1.9 4.1
1.9 4.1
1.5 3.6
1.5 3.6
UNIT
ns
ns
ns
Operating Characteristics
V_CCA and V_CCB = 3.3 V, T_A = 25°C
PARAMETER
C_pdA
Power dissipation capacitance per transceiver,
A-port input, B-port output
Power dissipation capacitance per transceiver,
B-port input, A-port output
C_pdB
Power dissipation capacitance per transceiver,
A-port input, B-port output
Power dissipation capacitance per transceiver,
B-port input, A-port output
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
14
7
20
7
14
7
20
7
UNIT
pF
pF
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. Output Voltage vs Output Current
8