HEF4555BT: 1-of-4 decoder/demultiplexer
The HEF4555B contains two 1-of-4 decoders/demultiplexers. Each has two address
inputs (nA0 and nA1, an active LOW enable input (nE) and four mutually exclusive
outputs which are active HIGH (nY0 to nY3). When used as a decoder, nE when HIGH,
forces nY0 to nY3 LOW. When used as a demultiplexer, the appropriate output is selected
by the information on nA0 and nA1 with nE as data input. All unselected outputs are LOW.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, or another input.
sot109-1_3d
Data Sheets (1)
Application Notes (1)
Brochures (2)
Package Information (1)
Supporting Information (2)
Ordering Information
| Product | Status | Family | Function | VCC (V) | Logic switching levels | Description | Output drive capability (mA) | Package version | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|
| HEF4555BT | Active | HEF4000B | Decoders/demultiplexers | 4.5 - 15 | CMOS | dual 1-to-4 line decoder/demultiplexer | +/- 2.4 | SOT109-1 | 30 | medium | -40~85 | 83 | 5.5 | 41.8 | SO16 | 16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|
| HEF4555BT | | SOT109-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE
SO-SOJ-REFLOW
SO-SOJ-WAVE | Reel 13" Q1/T1 CECC | Active | HEF4555BT,653
(9333 733 10653) | HEF4555BT | HEF4555BT |    | week 6, 2004 | 75.3 | 2.99 | 3.34E8 | 1 | 1 |
| Bulk Pack, CECC | Active | HEF4555BT,652
(9333 733 10652) | HEF4555BT | HEF4555BT | | week 6, 2004 | 75.3 | 2.99 | 3.34E8 | 1 | 1 |
