Part # 74VHC139 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Dual 2 to 4 decoder demultiplexer

Part Details:

74VHC139 DUAL 2 TO 4 DECODER/DEMULTIPLEXER s HIGH SPEED: t PD = 5.0 ns (TYP.) at VCC = 5V s LOW POWER DISSIPATION:ICC = 4 µA (MAX.) at TA=25°C s HIGH NOISE IMMUNITY:VNIH = VNIL = 28% VCC (MIN.) s POWER DOWN PROTECTION ON INPUTS s SYMMETRICAL OUTPUT IMPEDANCE: SOP TSSOP |IOH| = IOL = 8 mA (MIN) s BALANCED PROPAGATION DELAYS: Table 1: Order Codes tPLH tPHL s OPERATING VOLTAGE RANGE: PACKAGE T & R VCC(OPR) = 2V to 5.5V SOP 74VHC139MTR s PIN AND FUNCTION COMPATIBLE WITH TSSOP 74VHC139TTR 74 SERIES 139 s IMPROVED LATCH-UP IMMUNITY Power down protection is provided on all inputs DESCRIPTION and 0 to 7V can be accepted on inputs with no The 74VHC139 is an advanced high-speed regard to the supply voltage. This device can be CMOS DUAL 2 TO 4 LINE DECODER/ used to interface 5V to 3V. DEMULTIPLEXER fabricated with sub-micron All inputs and outputs are equipped with silicon gate and double-layer metal wiring C2MOS protection circuits against static discharge, giving technology. them 2KV ESD immunity and transient excess The active low enable input can be used for gating voltage. or as a data input for demultiplexing applications.While the enable input is held high, all four outputsare high independently of the other inputs. Figure 1: Pin Connection And IEC Logic Symbols Rev. 4 November 2004 1/12

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74VHC139.pdf Datasheet