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74ALVCH162245DL View Datasheet(PDF) - Philips Electronics

Part Name
Description
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74ALVCH162245DL Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
Philips Semiconductors
16-bit bus transceiver with direction pin and
30termination resistor (3-State)
Product specification
74ALVCH162245
AC WAVEFORMS FOR VCC = 2.3V TO 2.7V AND
VCC < 2.3V RANGE
VM = 0.5 VCC
VX = VOL + 0.15V
VY = VOH –0.15V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VI = VCC
AC WAVEFORMS FOR VCC = 3.0V TO 3.6V AND
VCC = 2.7V RANGE
VM = 1.5 V
VX = VOL + 0.3V
VY = VOH –0.3V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VI = 2.7V
VI
An, Bn
INPUT
VM
GND
VOH
tPHL
tPLH
Bn, An
OUTPUT
VM
VOL
SW00063
Waveform 1. Input (nAn, nBn) to output (nBn, nAn)
propagation delay times
VI
OE INPUT
VM
GND
VCC
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
tPLZ
VX
tPZL
VM
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
tPHZ
outputs
enabled
tPZH
VY
VM
outputs
disabled
outputs
enabled
SW00064
Waveform 2. 3-State enable and disable times
TEST CIRCUIT
VCC
PULSE
GENERATOR
VI
RT
VO
D.U.T.
CL
S1
2 * VCC
Open
GND
RL = 500
RL = 500
Test Circuit for switching times
DEFINITIONS
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT of pulse generators.
SWITCH POSITION
TEST
S1
VCC
VI
tPLH/tPHL
Open
< 2.7V
VCC
tPLZ/tPZL
tPHZ/tPZH
2 < VCC
GND
2.7–3.6V
2.7V
SV00906
Waveform 3. Load circuitry for switching times
1998 Jun 29
7
 

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