Philips HEF4028BT, HEF4028BPB, HEF4028BP, HEF4028BDB, HEF4028BD Datasheet
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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
∙The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC
∙The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC
HEF4028B MSI
1-of-10 decoder
Product specification |
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January 1995 |
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File under Integrated Circuits, IC04 |
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Philips Semiconductors |
Product specification |
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1-of-10 decoder
HEF4028B
MSI
DESCRIPTION
The HEF4028B is a 4-bit BCD to 1-of-10 active HIGH decoder. A 1-2-4-8 BCD code applied to inputs A0 to A3 causes the selected output to be HIGH, the other nine will be LOW. If desired, the device may be used as a 1-of-8 decoder with enable; 3-bit octal inputs are applied to inputs A0, A1 and A2 selecting an output O0 to O7. Input A3 then becomes an active LOW enable, forcing the selected output LOW when A3 is HIGH. The HEF4028B may also be used as an 8-output (O0 to O7) demultiplexer with A0 to A2 as address inputs and A3 as an active LOW data input. The outputs are fully buffered for best performance.
Fig.1 Functional diagram.
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HEF4028BP(N): |
16-lead DIL; plastic |
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(SOT38-1) |
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HEF4028BD(F): |
16-lead DIL; ceramic (cerdip) |
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(SOT74) |
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HEF4028BT(D): |
16-lead SO; plastic |
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(SOT109-1) |
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( ): Package Designator North America |
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PINNING |
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Fig.2 Pinning diagram. |
A0 to A3 |
address inputs, 1-2-4-8 BCD |
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O0 to O9 |
outputs (active HIGH) |
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FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
January 1995 |
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