7-912

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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CD4048BMS

CMOS Multifunction

Expandable 8 Input Gate

Pinout

CD4048BMS

TOP VIEW

Functional Diagram

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

J (OUTPUT)

Kd

H

G

F

E

VSS

Kb

VDD

A

B

C

D

Ka

Kc

EXPAND

INPUTS

INPUTS

BINARY CONTROL INPUTS

FUNCTION CONTROL

3 STATE

14

13

12

11

15

6

5

4

3

CONTROL

10

792

Ka

Kb Kc Kd

A

B

C

D

EXPAND

E

F

G

H

I

J OUTPUT

VSS = 8

VDD = 16

INPUTS

INPUTS

Features

• High-Voltage Type (20V Rating)

• Three State Output

• Many Logic Functions Available in One Package

• Standardize, Symmetrical Output Characteristics

• 100% Tested for Quiescent Current at 20V

• Maximum Input Current of 1

µA at 18V Over Full Pack-

• Noise Margin (Over Full Package Temperature Range):

- 1V at VDD = 5V

- 2V at VDD = 10V

- 2.5V at VDD = 15V

• 5V, 10V and 15V Parametric Ratings

• Meets All Requirements of JEDEC Tentative Standard

No. 13B, “Standard Specifications for Description of

‘B’ Series CMOS Devices”

Applications

• Selection of Up to 8 Logic Functions

• Digital Control of Logic

• General Purpose Gating Logic

- Decoding

- Encoding

Description

CD4048BMS is an 8-input gate having four control inputs. Three

binary control inputs - Ka, Kb, and Kc - provide the implementa-

tion of eight different logic functions. These functions are OR,

NOR, AND, NAND, OR/AND, OR/NAND, AND/OR and AND/

NOR.

A fourth control input, Kd, provides the user with a 3-state output.

When control input Kd is high, the output is either a logic 1 or a

logic 0 depending on the inner states. When control input Kd is

low, the output is an open circuit. This feature enables the user to

connect this device to a common bus line.

In addition to the eight input lines, an EXPAND input is provided

that permits the user to increase the number of inputs into a

CD4048BMS (see Figure 2). For example, two CD4048BMS’s

can be cascaded to provided a 16-input multifunction gate. When

the EXPAND input is not used, it should be connected to VSS.

The CD4048BMS is supplied in these 16 lead outline packages:

Braze Seal DIP

H4S

Frit Seal DIP

H1E

Ceramic Flatpack

H6W

December 1992

File Number

3314