MOTOROLA CMOS LOGIC DATA

25

MC14006B

18-Bit Static Shift Register

The MC14006B shift register is comprised of four separate shift register

sections sharing a common clock: two sections have four stages, and two

sections have five stages with an output tap on both the fourth and fifth

stages. This makes it possible to obtain a shift register of 4, 5, 8, 9, 10, 12,

13, 14, 16, 17, or 18 bits by appropriate selection of inputs and outputs. This

part is particularly useful in serial shift registers and time delay circuits.

• Output Transitions Occur on the Falling Edge of the Clock Pulse

• Fully Static Operation

• Can be Cascaded to Provide Longer Shift Register Lengths

• Supply Voltage Range = 3.0 Vdc to 18 Vdc

• Capable of Driving Two Low–power TTL Loads or One Low–power

Schottky TTL Load Over the Rated Temperature Range

• Pin–for–Pin Replacement for CD4006B

Symbol

Parameter

Value

Unit

VDD

DC Supply Voltage

– 0.5 to + 18.0

V

Vin, Vout Input or Output Voltage (DC or Transient)

– 0.5 to VDD + 0.5

V

lin, lout

Input or Output Current (DC or Transient),

per Pin

± 10

mA

PD

Power Dissipation, per Package†

500

mW

Tstg

Storage Temperature

– 65 to + 150

_C

TL

Lead Temperature (8–Second Soldering)

260

_C

* Maximum Ratings are those values beyond which damage to the device may occur.

†Temperature Derating:

Plastic “P and D/DW” Packages: – 7.0 mW/

_C From 65_C To 125_C

Ceramic “L” Packages: – 12 mW/

_C From 100_C To 125_C

BLOCK DIAGRAM

13

1

11

4

12

5

10

6

8

9

DP1

Q4

DP5

Q8

Q9

DP10 Q13

DP14

Q17

Q18

4

STAGES

4

STAGES

1

STAGE

4

STAGES

4

STAGES

1

STAGE

D

D

D

D

D

D

C

C

C

C

C

C

CLOCK 3

VDD

VSS

NC

= PIN 14

= PIN 7

= PIN 2

LOGIC DIAGRAM

(ONE REGISTER STAGE)

C

C

C

C

D + 1

DATA

#

*

(C)

1

2

(C)

IN

OUT

#Inverter used only on the first stage of

each four–stage element.

* Transmission Gate

Input to output is

(A)

(B)

A bidirectional low impedance when control input 1 is “low” and control input 2 is “high”.

An open circuit when control input 1 is “high” and control input 2 is “low”.

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

REV 3

1/94

MC14002B (see Page 6-5)

MC14002UB (see Page 6-14)

TRUTH TABLE

(Single Stage)

MC14006B

L SUFFIX

CERAMIC

CASE 632

ORDERING INFORMATION

MC14XXXBCP

Plastic

MC14XXXBCL

Ceramic

MC14XXXBD

SOIC

TA = – 55° to 125°C for all packages.

P SUFFIX

PLASTIC

CASE 646

D SUFFIX

SOIC

CASE 751A

Dn

C

Qn+1

0

0

1

1

x

Qn

X = Don’t Care