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| 74ABTL3205 Datasheet, PDF (11/14 Pages) NXP Semiconductors – 10-bit BTL transceiver with registers | |||
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Philips Semiconductors
10-bit BTL transceiver with registers
Product specification
74ABTL3205
TEST CIRCUIT AND WAVEFORMS
VCC
BIAS V
VIN
VOUT
RL
PULSE
D.U.T.
GENERATOR
RT
CL
RL
Test Circuit for 3-State Outputs on A Port
SWITCH POSITION
TEST
SWITCH
tPLZ, tPZL closed
All other open
VCC
BIAS V
PULSE
GENERATOR
VIN
RT
D.U.T.
2.0V (for RU = 9â¦)
2.1V (for RU = 16.5â¦)
VOUT
RU
CD
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tW
VM
10%
tTHL (tF)
tTLH (tR)
90%
VM
tW
VM
10%
90%
VM
90%
AMP (V)
LOW V
tTLH (tR)
tTHL (tF)
AMP (V)
10%
LOW V
VM = 1.55V for Bn or Bn, VM = 1.5V for all others
Input Pulse Definition
ABTL
A Port
B Port
INPUT PULSE REQUIREMENTS
Amplitude
3.0V
Low V
0.0V
Rep. Rate tW
tTLH tTHL
1MHz 500ns 2.5ns 2.5ns
2.0V
1.0V
1MHz 500ns 2.5ns 2.5ns
Test Circuit for Outputs on B Port
DEFINITIONS
RL =
CL =
Load resistor; see AC CHARACTERISTICS for value.
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT =
Termination resistance should be equal to ZOUT of pulse
generators.
CD =
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RU =
Pull up resistor;
see AC CHARACTERISTICS for value.
SA00146
1995 Jun 16
11
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