CD4021BCM Fairchild Semiconductor, CD4021BCM Datasheet
CD4021BCM
Manufacturer Part Number
CD4021BCM
Description
IC SHIFT REGISTER 8STAGE 16-SOIC
Manufacturer
Fairchild Semiconductor
Series
4000Br
Datasheet
1.CD4021BCM.pdf
(7 pages)
Specifications of CD4021BCM
Logic Type
Shift Register
Output Type
Standard
Number Of Elements
1
Number Of Bits Per Element
8
Function
Parallel or Serial to Serial
Voltage - Supply
3 V ~ 18 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CD4021BCM
Manufacturer:
FIR
Quantity:
20 000
© 1999 Fairchild Semiconductor Corporation
CD4021BC
8-Stage Static Shift Register
General Description
The CD4021BC is an 8-stage parallel input/serial output
shift register. A parallel/serial control input enables individ-
ual JAM inputs to each of 8 stages. Q outputs are available
from the sixth, seventh, and eighth stages. All outputs have
equal source and sink current capabilities and conform to
standard “B” series output drive.
When the parallel/serial control input is in the logical “0”
state, data is serially shifted into the register synchronously
with the positive transition of the clock. When the parallel/
serial control is in the logical “1” state, data is jammed into
each stage of the register asynchronously with the clock.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Order Number
CD4021BCM
CD4021BCN
Pin Assignments for DIP and SOIC
Order Code
Top View
M16A
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
DS005954.prf
All inputs are protected against static discharge with diodes
to V
Features
Truth Table
X
Note 1: Level change
Note 2: No change
(Note 1)
Wide supply voltage range:
High noise immunity: 0.45 V
Low power TTL compatibility:
5V–10V–15V parametric ratings
Symmetrical output characteristics
Maximum input leakage 1 A at 15V over full tempera-
ture range
Don't care case
DD
CL
X
X
X
X
Fan out of 2 driving 74L or 1 driving 74LS
and V
Package Description
Serial
Input
SS
X
X
X
X
X
0
1
.
Parallel/
Control
Serial
1
1
1
1
0
0
0
PI 1 PI n
X
X
X
0
0
1
1
October 1987
Revised January 1999
DD
3.0V to 15V
(typ.)
0
1
0
1
X
X
X
(Internal)
www.fairchildsemi.com
Q1
Q1
0
0
1
1
0
1
(Note 2)
Q
Q
Q
Q
0
1
0
1
n 1
n 1
n
n
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Datasheet:
CD4021BCM Summary of contents
Page 1
... Ordering Code: Order Number Order Code CD4021BCM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body CD4021BCN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” ...
Page 2
Logic Diagram www.fairchildsemi.com 2 ...
Page 3
Absolute Maximum Ratings (Note 4) Supply Voltage ( Input Voltage ( Storage Temperature Range ( Power Dissipation ( Dual-In-Line Small Outline ) Lead Temperature (T L (Soldering, 10 seconds) ...
Page 4
AC Electrical Characteristics 25 C, input ns pF Symbol Parameter Propagation Delay Time PLH PHL Transition Time THL TLH f Maximum Clock ...
Page 5
Typical Performance Characteristics 5 www.fairchildsemi.com ...
Page 6
Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body www.fairchildsemi.com Package Number M16A 6 ...
Page 7
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN ...