Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsLogic ICsLogic IC - Demultiplexer, decoder Decoder/demultiplexer Dual supply SO 16

1. General description

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 V

power supply range of 3 V to 15 V referenced to V

(usually ground). Unused inputs must be connected to V

, V

, or another input.

2. Features and benefits

 Fully static operation

 5 V, 10 V, and 15 V parametric ratings

 Standardized symmetrical output characteristics

 Specified from 40 C to +85 C

 Complies with JEDEC standard JESD 13-B

3. Applications

 Code conversion

 Address decoding

 Demultiplexing: when using the enable input as data input

4. Ordering information

HEF4555B

1-of-4 decoder/demultiplexer

Rev. 5 — 18 November 2011 Product data sheet

Table 1. Ordering information

All types operate from





C to +85



Type number Package

Name Description Version

HEF4555BP DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4

HEF4555BT SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1

Summary of content (13 pages)

PAGE 1
HEF4555B 1-of-4 decoder/demultiplexer Rev. 5 — 18 November 2011 Product data sheet 1. General description 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.
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HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 5. Functional diagram 1Y0 4 nY0 2 1A0 1Y1 5 DECODER nA0 1Y2 6 3 1A1 1Y3 7 nY1 1 1E nA1 2Y0 12 14 2A0 nY2 2Y1 11 DECODER 2Y2 10 13 2A1 2Y3 9 nE nY3 15 2E 001aae753 001aae751 Fig 1. Functional diagram Fig 2. Logic diagram for one decoder/multiplexer 6. Pinning information 6.
PAGE 3
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 6.2 Pin description Table 2. Pin description Symbol Pin Description 1A0, 1A1, 2A0, 2A1 2, 3, 14, 13 address input 1E, 2E 1, 15 enable input (active LOW 1Y0, 1Y1, 1Y2, 1Y3, 2Y0, 2Y1, 2Y2, 2Y3 4, 5, 6, 7, 12, 11, 10, 9 output (active HIGH) VDD 16 supply voltage VSS 8 ground (GND) 7. Functional description Table 3.
PAGE 4
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 9. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter VDD Conditions Min Typ Max Unit supply voltage 3 - 15 V VI input voltage 0 - VDD V Tamb ambient temperature in free air 40 - +85 C t/V input transition rise and fall rate VDD = 5 V - - 3.75 s/V VDD = 10 V - - 0.5 s/V VDD = 15 V - - 0.08 s/V 10. Static characteristics Table 6.
PAGE 5
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 11. Dynamic characteristics Table 7. Dynamic characteristics VSS = 0 V; Tamb = 25 C; for test circuit see Figure 5; unless otherwise specified. Symbol tPHL Parameter Conditions HIGH to LOW propagation delay nAn  nYn; see Figure 4 nE  nYn VDD Min Typ Max Unit 88 ns + (0.55 ns/pF)CL - 115 230 ns 10 V 34 ns + (0.23 ns/pF)CL - 45 90 ns 15 V 22 ns + (0.16 ns/pF)CL - 30 65 ns 5V 98 ns + (0.
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HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 12. Waveforms VDD 0.5VM nAn, nE input GND tPHL tPLH VOH nYn output 0.5VM VOL tTHL tTLH 001aal114 Measurement points are given in Table 9. Logic levels: VOL and VOH are typical output voltage levels that occur with the output load. Fig 4. Inputs nAn and nE to output nYn propagation delays Table 9. Measurement points Supply voltage Input Output VDD VM VM 5 V to 15 V 0.5VDD 0.
PAGE 7
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer VI tW 90 % negative pulse VM 0V tf tr tr tf VI 90 % positive pulse 0V VM 10 % VM VM 10 % tW VEXT VDD VI VO G DUT RT CL 001aal115 Test data is given in Table 10.
PAGE 8
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 13. Package outline DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4 ME seating plane D A2 A A1 L c e Z w M b1 (e 1) b b2 MH 9 16 pin 1 index E 1 8 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 b2 c D (1) E (1) e e1 L ME MH w Z (1) max. mm 4.2 0.51 3.2 1.73 1.30 0.53 0.38 1.25 0.85 0.36 0.23 19.50 18.55 6.
PAGE 9
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 D E A X c y HE v M A Z 16 9 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 8 e 0 detail X w M bp 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 1.
PAGE 10
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 14. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes HEF4555B v.5 20111118 Product data sheet - HEF4555B v.4 Modifications: • Table 6: IOH minimum values changed to maximum HEF4555B v.4 20100106 Product data sheet - HEF4555B_CNV v.3 HEF4555B_CNV v.3 19950101 Product specification - HEF4555B_CNV v.2 HEF4555B_CNV v.
PAGE 11
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 15. Legal information 15.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
PAGE 12
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NXP Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications.
PAGE 13
HEF4555B NXP Semiconductors 1-of-4 decoder/demultiplexer 17. Contents 1 2 3 4 5 6 6.1 6.2 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . .