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74LCX125 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer 74LCX125
Beschreibung Low-voltage CMOS quad bus buffer
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 16 Seiten
74LCX125 Datasheet, Funktion
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
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74LCX125 Datasheet, Funktion
Electrical characteristics
4 Electrical characteristics
74LCX125
Table 6. DC specifications
Test condition
Value
Symbol
Parameter
VCC
(V)
-40 to 85 °C
Min.
Max.
VIH
VIL
VOH
VOL
II
Ioff
IOZ
ICC
ΔICC
High level input voltage
2.7 to 3.6
Low level input voltage
2.0
High level output
voltage
2.7 to 3.6
2.7
3.0
Low level output
voltage
2.7 to 3.6
2.7
3.0
Input leakage current
Power OFF leakage
current
2.7 to 3.6
0
IO = -100 μA
IO = -12 mA
IO = -18 mA
IO = -24 mA
IO = 100 μA
IO = 12 mA
IO = 16 mA
IO = 24 mA
VI = 0 to 5.5 V
VI or VO = 5.5 V
VCC - 0.2
2.2
2.4
2.2
High Impedance
output leakage current
Quiescent supply
current
I incr. per input
2.7 to 3.6
VI = VIH or VIL
VO = 0 to VCC
2.7 to 3.6
VI = VCC or GND
VI or VO = 3.6 to 5.5 V
2.7 to 3.6 VIH = VCC - 0.6 V
0.8
0.2
0.4
0.4
0.55
±5
10
±5
10
± 10
500
Unit
V
V
V
V
μA
μA
μA
μA
μA
Table 7.
Dynamic switching characteristics
Test condition
Value
Symbol
Parameter
VCC
(V)
TA = 25 °C
Unit
Min. Typ. Max.
VOLP
VOLV
Dynamic low level
quiet output(1)
3.3
CL = 50 pF
VIL = 0 V, VIH = 3.3 V
0.8
-0.8
V
1. Number of outputs defined as “n”. Measured with “n-1” outputs switching from HIGH to LOW or LOW to
HIGH. The remaining output is measured in the LOW state.
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Doc ID 4980 Rev 8

6 Page









74LCX125 pdf, datenblatt
Package information
Figure 8. TSSOP14 package outline
74LCX125
.
Table 12.
TSSOP14 package mechanical data
Dimensions
Symbol
mm
Min.
Typ.
Max.
Min.
A 1.2
A1 0.05
0.15 0.002
A2 0.8
1 1.05 0.031
b 0.19
0.30 0.007
c 0.09
0.20 0.004
D 4.9 5 5.1 0.193
E 6.2 6.4 6.6 0.244
E1 4.3 4.4 4.48 0.169
e 0.65 BSC
K 0°
8° 0°
L
0.45
0.60
0.75 0.018
inch
Typ.
0.004
0.039
0.197
0.252
0.173
0.0256 BSC
0.024
Max.
0.047
0.006
0.041
0.012
0.0089
0.201
0.260
0.176
0.030
12/16
Doc ID 4980 Rev 8

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