74LVC16241A 데이터 시트보기 (PDF) - Philips Electronics
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74LVC16241A Datasheet PDF : 10 Pages
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Philips Semiconductors
16-bit buffer/line driver (3-State)
Product specification
74LVC16241A
AC WAVEFORMS
VM = 1.5V at VCC w 2.7V; VM = 0.5 VCC at VCC t 2.7V.
VOL and VOH are the typical output voltage drop that occur with the output load.
VX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 VCC at VCC t 2.7V
VY = VOH –0.3V at VCC w 2.7V; VY = VOH – 0.1 VCC at VCC t 2.7V
VI
1An, 2An
INPUT
VM
VI
1OE, 4OE
INPUT
VM
GND
VOH
tPHL
tPLH
1Yn, 2Yn
OUTPUT
VM
VOL
SW00051
Waveform 1. Input (nAn) to output (nYn) propagation times
VI
2OE, 3OE
INPUT
VM
GND
GND
VCC
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
tPLZ
tPZL
tPHZ
outputs
enabled
VM
VX
tPZH
VY
VM
outputs
disabled
outputs
enabled
VCC
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
tPLZ
tPZL
tPHZ
outputs
enabled
VM
VX
tPZH
VY
VM
outputs
disabled
outputs
enabled
SW00052
Waveform 3. 3-State enable and disable times for the input
(1OE, 4OE)
TEST CIRCUIT
VCC
VIN
PULSE
GENERATOR
D.U.T.
VOUT
S1
2<VCC
Open
GND
RL=500 Ω
RT
CL
RL=500 Ω
SW00053
Waveform 2. 3-State enable and disable times for the input
(2OE, 3OE)
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
SWITCH
Open
2<VCC
GND
VCC
t 2.7V
2.7 – 3.6V
VIN
VCC
2.7V
DEFINITIONS
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT
of pulse generators.
SW00047
Waveform 4. Load circuitry for switching times
1997 Jul 29
6
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