74LVC125D Datasheet PDF - Philips
Part Number | 74LVC125D | |
Description | Quad buffer/line driver; 3-State | |
Manufacturers | Philips | |
Logo | ||
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74LVC125
Quad buffer/line driver; 3-State
Product specification
Supersedes data of February 1996
IC24 Data Handbook
1997 Mar 18
Philips
Semiconductors
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Philips Semiconductors
Quad buffer/line driver; 3-State
Product specification
74LVC125
AC CHARACTERISTICS
GND = 0 V; tr = tf = 2.5 ns; CL = 50 pF; RL = 500W; Tamb = –40_C to +85_C.
SYMBOL
PARAMETER
WAVEFORM
tPHL Propagation delay
tPLH
nA to nY
Figure 1, 3
tPZH
tPZL
3-state output enable
time nOE to nY
Figure 2, 3
tPHZ
tPLZ
3-state output disable
time nOE to nY
Figure 2, 3
NOTE:
1. These typical values are at VCC = 3.3V and Tamb = 25°C.
VCC = 3.3V ±0.3V
MIN TYP1 MAX
3.5 6.5
3.8 7.0
3.3 5.5
LIMITS
VCC = 2.7V
MIN TYP MAX
3.9 7.0
4.4 8.0
4.0 6.5
VCC = 1.2V
TYP
UNIT
ns
ns
ns
AC WAVEFORMS
VM = 1.5 V at VCC w 2.7 V
VM = 0.5 × VCC at VCC < 2.7 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3 V at VCC ≥ 2.7 V;
VX = VOL + 0.1 × VCC at VCC < 2.7 V;
VY = VOH – 0.3 V at VCC ≥ 2.7 V;
VY = VOH – 0.1 × VCC at VCC < 2.7 V.
TEST CIRCUIT
PULSE
GENERATOR
VI
VCC
D.U.T.
RT
VO
CL 50pF
S1
500Ω
2 < VCC
Open
GND
500Ω
Vl
nA INPUT
GND
V OH
nY OUTPUT
V OL
VM
t PHL
VM
t PLH
SV00459
Figure 1. Input (nA) to output (nY) propagation delays.
VCC
t 2.7V
2.7V – 3.6V
VI
VCC
2.7V
Test
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 < VCC
GND
SY00003
Figure 3. Load circuitry for switching times.
VI
nOE Input
GND
VCC
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
VM
tPLZ
tPZL
VX
tPHZ
VY
VM
tPZH
VM
outputs
enabled
outputs
disabled
outputs
enabled
SV00458
Figure 2. 3-State enable and disable times.
1997 Mar 18
5
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