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The NLSF3T125 is a high speed CMOS quad bus buffer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.
The NLSF3T125 requires the 3?state control input (OE) to be set High to place the output into the high impedance state.
The T125 inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3 V to 5.0 V, because it has full 5.0 V CMOS level output swings.
The NLSF3T125 input structures provide protection when voltages between 0 V and 5.5 V are applied, regardless of the supply voltage. The output structures also provide protection when VCC = 0 V. These input and output structures help prevent device destruction caused by supply voltage input/output voltage mismatch, battery backup, hot insertion, etc.
The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7.0 V, allowing the interface of 5.0 V systems to 3.0 V systems.
NLSF3T125 Maximum Ratings
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage
-0.5 to +70
V
Vin
DC Input Voltage
-0.5 to +70
V
Vout
DC Output Voltage
-0.5 to +70 -0.5 to VCC +0.5
V
IIk
Input Diode Current
-20
mA
IOK
Output Diode Current (VOUT VCC
±20
mA
Iout
DC Output Current,per Pin
±25
mA
ICC
DC Supply Current,VCC and GND Pins
±75
mA
PD
Power Dissipation in Still Air,QFN Packages
500
mW
Tstg
Storage Temperature
-65 to +150
Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If stress limits are exceeded device functional operation is not implied, damage may occur and reliability may be affected. Functional operation should be restricted to the Recommended Operating Conditions.
NLSF3T125 Features
`High Speed: tPD = 3.8 ns (Typ) at VCC = 5.0 V `Low Power Dissipation: ICC = 4.0 A (Max) at TA = 25 `TTL-Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V `Power Down Protection Provided on Inputs `Balanced Propagation Delays `Designed for 2.0 V to 5.5 V Operating Range `Low Noise: VOLP = 0.8 V (Max) `Pin and Function Compatible with Other Standard Logic Families `Latchup Performance Exceeds 300 mA `ESD Performance:Human Body Model; > 2000 V, Machine Model; > 200 V `Chip Complexity: 72 FETs or 18 Equivalent Gates