CD4028BCN

CD4028BCN Datasheet

CD4028BC BCD-to-Decimal Decoder

Part	Datasheet
CD4028BCN	CD4028BCN (pdf)

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CD4028BC BCD-to-Decimal Decoder CD4028BC BCD-to-Decimal Decoder The CD4028BC is a BCD-to-decimal or binary-to-octal decoder consisting of 4 inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the 4 inputs, A, B, C, and D, results in a high level at the selected 1-of-10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A, B, and C is decoded in octal at outputs A high level signal at the D input inhibits octal decoding and causes outputs to go LOW. All inputs are protected against static discharge damage by diode clamps to VDD and VSS. s Wide supply voltage range 3.0V to 15V s High noise immunity VDD typ. s Low power TTL compatibility fan out of 2 driving 74L or 1 driving 74LS s Low power s Glitch free outputs s “Positive logic” on inputs and outputs • Code conversion • Address decoding • Indicator-tube decoder Ordering Code: Order Number Package Number Package Description CD4028BCM M16A 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow CD4028BCN N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Top View 2002 Fairchild Semiconductor Corporation DS005959 CD4028BC Truth Table 1 = HIGH Level 0 = LOW Level DCBA0 1 2 3 4 5 6 7 8 9 Logic Diagram BCD States Extraordinary States CD4028BC Absolute Maximum Ratings Note 1 Note 2 Supply Voltage VDD Input Voltage VIN Storage Temperature Range TS Power Dissipation PD Dual-In-Line Small Outline Lead Temperature TL Soldering, 10 seconds to +18V to VDD +0.5V −65°C to +150°C 700 mW 500 mW 260°C Recommended Operating Conditions Note 2 Supply Voltage VDD 3 to 15V Input Voltage VIN 0 to VDDV Operating Temperature Range TA −55°C to +125°C Note 1 “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed, they are not meant to imply that the devices should be operated at these limits. The table of “Recommended Operating Conditions” and “Electrical Characteristics” provides conditions for actual device operation. Note 2 VSS = 0V unless otherwise specified. DC Electrical Characteristics Note 2 Parameter Conditions Quiescent Device Current VDD = 5V, VIN = VDD or VSS VDD = 10V, VIN = VDD or VSS VDD = 15V, VIN = VDD or VSS LOW Level Output Voltage \|IO\| < 1 µA, VIL = 0V, VIH = VDD VDD = 5V VDD = 10V VDD = 15V

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CD4028BC BCD-to-Decimal Decoder

CD4028BC BCD-to-Decimal Decoder

The CD4028BC is a BCD-to-decimal or binary-to-octal decoder consisting of 4 inputs, decoding logic gates, and 10 output buffers. A BCD code applied to the 4 inputs, A, B, C, and D, results in a high level at the selected 1-of-10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A, B, and C is decoded in octal at outputs A high level signal at the D input inhibits octal decoding and causes outputs to go LOW.

All inputs are protected against static discharge damage by diode clamps to VDD and VSS.
s Wide supply voltage range 3.0V to 15V s High noise immunity VDD typ. s Low power TTL compatibility fan out of 2 driving 74L
or 1 driving 74LS s Low power s Glitch free outputs s “Positive logic” on inputs and outputs
• Code conversion
• Address decoding
• Indicator-tube decoder
Ordering Code:

Order Number Package Number

Package Description

CD4028BCM

M16A
16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow

CD4028BCN

N16E
16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Top View 2002 Fairchild Semiconductor Corporation DS005959

CD4028BC

Truth Table
1 = HIGH Level 0 = LOW Level

DCBA0 1 2 3 4 5 6 7 8 9

Logic Diagram

BCD States Extraordinary States

CD4028BC

Absolute Maximum Ratings Note 1

Note 2

Supply Voltage VDD Input Voltage VIN Storage Temperature Range TS Power Dissipation PD

Dual-In-Line

Small Outline

Lead Temperature TL Soldering, 10 seconds
to +18V to VDD +0.5V
−65°C to +150°C
700 mW 500 mW
260°C

Recommended Operating Conditions Note 2

Supply Voltage VDD
3 to 15V

Input Voltage VIN
0 to VDDV

Operating Temperature Range TA
−55°C to +125°C

Note 1 “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed, they are not meant to imply that the devices should be operated at these limits. The table of “Recommended Operating Conditions” and “Electrical Characteristics” provides conditions for actual device operation.

Note 2 VSS = 0V unless otherwise specified.

DC Electrical Characteristics Note 2

Parameter

Conditions

Quiescent Device Current

VDD = 5V, VIN = VDD or VSS

VDD = 10V, VIN = VDD or VSS

VDD = 15V, VIN = VDD or VSS

LOW Level Output Voltage
|IO| < 1 µA, VIL = 0V, VIH = VDD

VDD = 5V

VDD = 10V

VDD = 15V

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Datasheet ID: CD4028BCN 513564