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PDF 74LCX125 Data sheet ( Hoja de datos )
| Número de pieza | 74LCX125 | |
| Descripción | Low-voltage CMOS quad bus buffer | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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74LCX125
Low-voltage CMOS quad bus buffer (3-state)
with 5 V tolerant inputs and outputs
Datasheet −production data
Features
■ 5 V tolerant inputs and outputs
■ High speed
– tPD = 5.2 ns (max.) at VCC = 3 V
■ Power-down protection on inputs and outputs
■ Symmetrical output impedance
– |IOH| = IOL = 24 mA (min.) at VCC = 3 V
■ PCI bus levels guaranteed at 24 mA
■ Balanced propagation delay
– tPLH ≅ tPHL
■ Operating voltage range
– VCC (opr.) = 2.0 V to 3.6 V
■ Pin and function compatible with 74 series 125
■ Latch-up performance exceeds 500 mA
(JESD 17)
■ ESD performance
– HBM: 2000 V (MIL STD 883 method 3015)
– MM: 200 V
– CDM: 1000 V
Applications
■ Automotive
■ Industrial
■ Computer
■ Consumer
TSSOP14
SO-14
Description
The 74LCX125 device is a low-voltage CMOS
quad bus buffer manufactured with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology. It is ideal for low-power and high-
speed 3.3 V applications and can be interfaced to
a 5 V signal environment for both inputs and
outputs.
The device requires the 3-state control input G to
be set high to place the output in the high
impedance state.
It has the same speed performance at 3.3 V as
the 5 V AC/ACT family, combined with lower
power consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2 kV ESD immunity and transient excess
voltage.
Table 1. Device summary
Order code
Temperature range
Package
Packaging
Marking
74LCX125TTR
74LCX125YTTR(1)
74LCX125MTR
74LCX125YMTR(1)
-40/+85 °C
-40/+85 °C
-40/+85 °C
-40/+85 °C
TSSOP14
TSSOP14 (automotive grade)
SO-14
SO-14 (automotive grade)
Tape and reel
Tape and reel
Tape and reel
Tape and reel
LCX125
LCX125Y
74LCX125
74LCX125Y
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 and Q002 or equivalent.
October 2012
This is information on a product in full production.
Doc ID 4980 Rev 8
1/16
www.st.com
16
1 page  
74LCX125
3 Maximum ratings
Maximum ratings
Stressing the device above the rating listed in Table 4: Absolute maximum ratings may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in Table 5: Recommended
operating conditions of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Table 4.
Symbol
Absolute maximum ratings
Parameter
VCC Supply voltage
VI DC input voltage
VO DC output voltage (VCC = 0 V)
VO DC output voltage (high or low state)(1)
IIK DC input diode current
IOK DC output diode current(2)
IO DC output current
ICC DC supply current per supply pin
IGND DC ground current per supply pin
Tstg Storage temperature
TL Lead temperature (10 sec.)
1. IO absolute maximum rating must be observed.
2. VO < GND.
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +7.0
-0.5 to VCC + 0.5
-50
-50
± 50
± 100
± 100
-65 to +150
300
Unit
V
V
V
V
mA
mA
mA
mA
mA
°C
°C
Recommended operating conditions
Table 5. Recommended operating conditions
Symbol
Parameter
VCC
VI
VO
VO
IOH, IOL
IOH, IOL
dt/dv
Supply voltage(1)
Input voltage
Output voltage (VCC = 0 V)
Output voltage (high or low state)
High or low level output current (VCC = 3.0 to 3.6 V)
High or low level output current (VCC = 2.7 V)
Input rise and fall time(2)
1. Truth table guaranteed: 1.5 V to 3.6 V.
2. VIN from 0.8 V to 2 V at VCC = 3.0 V.
Value
2.0 to 3.6
0 to 5.5
0 to 5.5
0 to VCC
± 24
± 12
0 to 10
Unit
V
V
V
V
mA
mA
ns/V
Doc ID 4980 Rev 8
5/16
5 Page 
74LCX125
Figure 7. SO-14 package outline
Package information
Table 11. SO-14 package mechanical data
Dimensions
Symbol
mm
Min.
Typ.
Max.
Min.
A 1.35
1.75 0.053
A1 0.1
0.25 0.004
A2 1.10
1.65 0.043
B 0.33
0.51 0.013
C 0.19
0.25 0.007
D 8.55
8.75 0.337
E 3.8
4.0 0.150
e 1.27
H 5.8
6.2 0.228
h 0.25
0.50 0.010
L 0.4
1.27 0.016
k 0°
8° 0°
ddd 0.100
inch
Typ.
0.050
Max.
0.069
0.010
0.065
0.020
0.010
0.344
0.157
0.244
0.020
0.050
8°
0.004
Doc ID 4980 Rev 8
11/16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet 74LCX125.PDF ] | |
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