74VHCT138A 3 to 8 Line Decoder (Inverting)

The 74VHCT138A is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

If the device is enabled, 3 binary select inputs (A, B, and C) determine which one of the outputs will go low. When enable input G1 is held low or either G2A or G2B is held high, the decoding function is inhibited and all the 8 outputs go to high.

The three enable inputs are provided to ease cascade connection and application of address decoders for memory systems.

Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V since all inputs are equipped with TTL threshold.

All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage

技术特性

HIGH SPEED: tPD = 7.6 ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION:
- ICC = 4 μA (MAX.) at TA=25˚C
COMPATIBLE WITH TTL OUTPUTS:
- VIH= 2V (MIN.), VIL = 0.8V (MAX)
POWER DOWN PROTECTION ON INPUTS & OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
- |IOH| = IOL= 8 mA (MIN)
BALANCED PROPAGATION DELAYS:
- tPLH tPHL
OPERATING VOLTAGE RANGE:
- VCC(OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 138
IMPROVED LATCH-UP IMMUNITY
LOW NOISE: VOLP = 0.8V (MAX.)

74VHCT138A 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
74VHCT138AMTR	Active		1000	SO-16	Tape And Reel		74VHCT138AMTR
74VHCT138ATTR	Active		1000	TSSOP 16	Tape And Reel		74VHCT138ATTR

DATASHEET

描述	版本	大小
74VHCT138A : DS1928: 3 to 8 line decoder (inverting)	3	215KB