TC74VCX162835FT

The TC74VCX162835FT is a high performance CMOS 18-bit UNIVERSAL BUS DRIVER which is designed for use in 1.8, 2.5 or 3.3 Volt systems and it achieves high speed operation while maintaining the CMOS low power dissipation. It is also designed with over voltage tolerant inputs and outputs up to 3.6 V. Data flow from A to Y is controlled by the output-enable (OE) input. The device operates in the transparent mode when the latch-enable (LE) input is high. When OE is high, the outputs are in the high-impedance state. The 26- series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge. When LE is low, the A data of the TC74VCX162835FT is latched if the clock (CLK) input is held at a high or low logic level. If LE is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK.

The features of TC74VCX162835FT can be summarized as (1)26- series resistors on outputs; (2)low voltage operation: Vgg = 1.8~3.6V; (3)high speed operation: tpd = 3.9ns(max.) at VCC = 3.0~3.6V/tpd = 5.0ns(max.) at VCC = 2.3~2.7V/tpd = 9.8ns(max.) at VCC = 1.8V; (4)3.6V tolerant inputs and outputs; (5)output current: (IOH/IOL) = ±12 mA(min.) at VCC = 3.0V/(IOH/IOL) = ±8mA(min.) at VCC = 2.3V/(IOH/IOL) = ±4mA(min.) at VCC = 1.8V; (6)latch-up performance: ±300mA; (7)ESD performance: human body model > ±2000V/machine model > ±200V; (8)package: TSSOP (Thin Shrink Small Outline Package); (9)power down protection is provided on all inputs and outputs; (10)supports live insertion/withdrawal. (To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-souring capability of the driver.).

The absolute maximum ratings of TC74VCX162835FT are (1)VCC power supply voltage: -0.5~4.6V; (2)VIN DC Input Voltage: -0.5~4.6V; (3)VOUT DC Output Voltage (off-state/high or low state, IOUT absolute maximum rating must be observed): -0.5~4.6V/-0.5~VCC + 0.5V; (4)IIK input diode current: -50mA; (5)IOK output diode current(VOUTVCC): ±50mA; (6)IOUT DC output current: ±50mA; (7)PD power dissipation: 400mW; (8)ICC/IGND DC VCC/Ground Current per supply pin: ±100 mA; (9)Tstg storage temperature: -65~150°C.