EEWORLDEEWORLDEEWORLD

Part Number

Search

CD4021

Description
CMOS 8-Stage Static Shift Registers
File Size83KB,9 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
Download Datasheet Compare View All

CD4021 Overview

CMOS 8-Stage Static Shift Registers

CD4014BMS,
CD4021BMS
December 1992
CMOS 8-Stage Static Shift Registers
Description
CD4014BMS -Synchronous Parallel or Serial Input/Serial Output
CD4021BMS -Asynchronous Parallel Input or Synchronous
Serial Input/Serial Output
CD4014BMS and CD4021BMS series types are 8-stage paral-
lel- or serial-input/serial output registers having common CLOCK
and PARALLEL/SERIAL CONTROL inputs, a single SERIAL
data input, and individual parallel “JAM” inputs to each register
stage. Each register stage is a D-type, master-slave flip-flop. In
addition to an output from stage 8, “Q” outputs are also available
from stages 6 and 7. Parallel as well as serial entry is made into
the register synchronously with the positive clock line transition in
the CD4014BMS. In the CD4021BMS serial entry is synchro-
nous with the clock but parallel entry is asynchronous. In both
types, entry is controlled by the PARALLEL/SERIAL CONTROL
input. When the PARALLEL/SERIAL CONTROL input is low,
data is serially shifted into the 8-stage register synchronously
with the positive transition of the clock line. When the PARALLEL/
SERIAL CONTROL input is high, data is jammed into the 8-
stage register via the parallel input lines and synchronous with
the positive transition of the clock line. In the CD4021BMS, the
CLOCK input of the internal stage is “forced” when asynchro-
nous parallel entry is made. Register expansion using multiple
packages is permitted.
The CD4014BMS and CD4021BMS are supplied in these 16
lead outline packages:
Braze Seal DIP
Frit Seal DIP
Ceramic Flatpack
H4T
H1F
H6W
Features
• High Voltage Types (20V Rating)
• Medium Speed Operation 12MHz (Typ.) Clock Rate at
VDD-VSS = 10V
• Fully Static Operation
• 8 Master-Slave Flip-Flops Plus Output Buffering and
Control Gating
• 100% Tested for Quiescent Current at 20V
• Maximum Input Current of 1µA at 18V Over Full Pack-
age Temperature Range; 100nA at 18V and +25
o
C
• Noise Margin (Full Package Temperature Range)
• 1V at VDD = 5V
• 2V at VDD = 10V
• 2.5V at VDD = 15V
• Standardized Symmetrical Output Characteristics
• 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:
• Parallel Input/Serial Output Data Queueing
• Parallel to Serial Data Conversion
• General Purpose Register
Pinout
PI-8 1
Q6 2
Q8 3
PI-4 4
PI-3 5
PI-2 6
PI-1 7
VSS 8
16 VDD
15 PI-7
14 PI-6
13 PI-5
12 Q7
11 SERIAL IN
Functional Diagram
PAR. IN
VDD
1 2 3 4 5 6 7 8
7 6 5 4 13 14 15 1
16
PARALLEL/SERIAL
CONTROL
SERIAL IN
9
11
10
2
12
3
10 CLOCK
BUFFERED
OUT
9 PARALLEL/SERIAL
CONTROL
CLOCK
Q6
Q7
Q8
8
VSS
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
File Number
3294
7-80

CD4021 Related Products

CD4021 CD4014BMS CD4021BMS
Description CMOS 8-Stage Static Shift Registers CMOS 8-Stage Static Shift Registers CMOS 8-Stage Static Shift Registers
Renesas Car Award Receipt
I won the third prize. I chose a home kit and took it apart for fun. When I updated my personal information, I saw the relationship status item. I just want to say: hehe, hehe, hehe, I used Renesas's ...
a972043362 Renesas Electronics MCUs
TMS320VC5509A DSP Learning Route
Step 1: Chip data sheet Reference: sprs205k_TMS320VC5509A Fixed-Point Digital Signal Processor Data Manual (Rev. K) This manual is the data sheet for the TMS320C5509A fixed-point digital signal proces...
灞波儿奔 DSP and ARM Processors
Industrial "safety" control system based on Hercules - RS485, CAN communication schematic diagram
Industrial "safety" control system based on Hercules - RS485, CAN communication schematic diagram...
蓝雨夜 Microcontroller MCU
UP-NETARM 2410-S embedded development platform parts
[color=#444444][font=Tahoma,]UP-NETARM 2410-S embedded development platform parts, each set includes 1 development platform box, 1 UP-NETARM 2410-S embedded development platform motherboard, 1 UP-CUP ...
yfxzyqjyb Buy&Sell
Group H, come in and discuss.
[i=s] This post was last edited by paulhyde on 2014-9-15 09:40 [/i] National Competition H Group Brothers, let's work together! See the plan in the picture [[i] This post was last edited by yan131423y...
yan131423yong Electronics Design Contest
SPI device driver learning BUG problem record
[backcolor=white][color=#000000]And the writing of oled driver. During the debugging of the driver, [/color][/backcolor] [backcolor=white][color=#000000] [/color][/backcolor] [backcolor=white][color=#...
灞波儿奔 DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 884  2645  1082  1420  502  18  54  22  29  11 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号