74LVC16374A Просмотр технического описания (PDF) - Philips Electronics
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74LVC16374A
Philips Electronics
74LVC16374A Datasheet PDF : 10 Pages
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Philips Semiconductors
16-bit edge triggered D-type flip-flop with 5 Volt
tolerant inputs/outputs (3-State)
Product specification
74LVC16374A/
74LVCH16374A
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
1/fMAX
VI
CP INPUT
GND
VOH
VM
tw
tPHL
tPLH
Qn OUTPUT
VM
VOL
SW00078
Waveform 1. Clock (CP) to output (Qn) propagation delays, the
clock pulse width and the maximum clock pulse frequency
VI
OE INPUT
VM
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
SW00072
Waveform 2. 3-State enable and disable times
VI
CP
INPUT
VM
GND
tsu
tsu
VI
ÉÉÉÉ Dn
INPUT
VM
ÉÉÉÉÉÉÉÉ GND
ÉÉÉth ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉth ÉÉÉ
VOH
Qn
OUTPUT
VM
VOL
NOTE: The shaded areas indicate when the input is permitted to change
for predictable output performance.
SW00079
Waveform 3. Data set-up and hold times for the Dn input to the
CP input
TEST CIRCUIT
VCC
PULSE
GENERATOR
VIN
RT
D.U.T.
VOUT
CL
S1
2<VCC
Open
GND
RL=500 Ω
RL=500 Ω
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
1998 Mar 17
7
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