74LCX125TTR STMicroelectronics

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 t = 5.2 ns (max.) at V = 3 V PD CC Power-down protection on inputs and outputs Symmetrical output impedance TSSOP14 SO-14 I = I = 24 mA (min.) at V = 3 V OH OL CC PCI bus levels guaranteed at 24 mA Description Balanced propagation delay t t The 74LCX125 device is a low-voltage CMOS PLH PHL quad bus buffer manufactured with sub-micron Operating voltage range 2 silicon gate and double-layer metal wiring C MOS V (opr.) = 2.0 V to 3.6 V CC technology. It is ideal for low-power and high- Pin and function compatible with 74 series 125 speed 3.3 V applications and can be interfaced to a 5 V signal environment for both inputs and Latch-up performance exceeds 500 mA outputs. (JESD 17) ESD performance The device requires the 3-state control input G to be set high to place the output in the high HBM: 2000 V (MIL STD 883 method 3015) impedance state. MM: 200 V CDM: 1000 V It has the same speed performance at 3.3 V as the 5 V AC/ACT family, combined with lower power consumption. Applications All inputs and outputs are equipped with Automotive protection circuits against static discharge, giving Industrial them 2 kV ESD immunity and transient excess voltage. Computer Consumer Table 1. Device summary Order code Temperature range Package Packaging Marking 74LCX125TTR -40/+85 C TSSOP14 Tape and reel LCX125 (1) 74LCX125YTTR -40/+85 C TSSOP14 (automotive grade) Tape and reel LCX125Y 74LCX125MTR -40/+85 C SO-14 Tape and reel 74LCX125 (1) 74LCX125YMTR -40/+85 C SO-14 (automotive grade) Tape and reel 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 Doc ID 4980 Rev 8 1/16 This is information on a product in full production. www.st.com 16Contents 74LCX125 Contents 1 Logic symbols and I/O equivalent circuit 3 2 Pin settings 4 2.1 Pin connections . 4 2.2 Pin description 4 2.3 Truth table 4 3 Maximum ratings 5 Recommended operating conditions . 5 4 Electrical characteristics . 6 5 Test circuit . 8 6 Waveforms . 9 7 Package information 10 8 Revision history . 15 2/16 Doc ID 4980 Rev 8