công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

MC74HCXXXAD bảng dữ liệu(PDF) 4 Page - Motorola, Inc

tên linh kiện MC74HCXXXAD
Giải thích chi tiết về linh kiện  High?밣erformance Silicon?밎ate CMOS
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC74HCXXXAD bảng dữ liệu(HTML) 4 Page - Motorola, Inc

  MC74HCXXXAD Datasheet HTML 1Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 2Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 3Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 4Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 5Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 6Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 7Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 8Page - Motorola, Inc MC74HCXXXAD Datasheet HTML 9Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 12 page
background image
MC54/74HCT161A MC54/74HCT163A
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
4
FUNCTION DESCRIPTION
The HCT161A/163A are programmable 4–bit synchronous
counters that feature parallel Load, synchronous or asynchro-
nous Reset, a Carry Output for cascading and count–enable
controls.
The HCT161A and HCT163A are binary counters with
asynchronous Reset and synchronous Reset, respectively.
INPUTS
Clock (Pin 2)
The internal flip–flops toggle and the output count ad-
vances with the rising edge of the Clock input. In addition, con-
trol functions, such as resetting and loading occur with the
rising edge of the Clock input. In addition, control functions,
such as resetting (HCT163A) and loading occur with the rising
edge of the Clock Input.
Preset Data Inputs P0, P1, P2, P3 (Pins 3, 4, 5, 6)
These are the data inputs for programmable counting. Data
on these pins may be synchronously loaded into the internal
flip–flops and appear at the counter outputs. P0 (Pin 3) is the
least–significant bit and P3 (Pin 6) is the most–significant bit.
OUTPUTS
Q0, Q1, Q2, Q3 (Pins 14, 13, 12, 11)
These are the counter outputs. Q0 (Pin 14) is the least–sig-
nificant bit and Q3 (Pin 11) is the most–significant bit.
Ripple Carry Out (Pin 15)
When the counter is in its maximum state 1111, this output
goes high, providing an external look–ahead carry pulse that
may be used to enable successive cascaded counters. Ripple
Carry Out remains high only during the maximum count state.
The logic equation for this output is:
Ripple Carry Out = Enable T
• Q0 • Q1 • Q2 • Q3
CONTROL FUNCTIONS
Resetting
A low level on the Reset pin (pin 1) resets the internal flip–
flops and sets the outputs (Q0 through Q3) to a low level. The
HCT161A resets asynchronously, and the HCT163A resets
with the rising edge of the Clock input (synchronous reset).
Loading
With the rising edge of the Clock, a low level on Load (pin
9) loads the data from the Preset Data input pins (P0, P1, P2,
P3) into the internal flip–flops and onto the output pins, Q0
through Q3. The count function is disabled as long as Load is
low.
Count Enable/Disable
These devices have two count–enable control pins: Enable
P (Pin 7) and Enable T (Pin 10). The devices count when these
two pins and the Load pin are high. The logic equation is:
Count Enable = Enable P
• Enable T • Load
The count is either enabled or disabled by the control inputs
according to Table 1. In general, Enable P is a count–enable
control: Enable T is both a count–enable and a Ripple–Carry
Output control.
Table 1. Count Enable/Disable
Control Inputs
Result at Outputs
Load
Enable
P
Enable
T
Q0–Q3
Ripple Carry Out
H
H
H
Count
High when Q0–Q3
L
H
H
No Count
are maximum*
X
L
H
No Count
High when Q0–Q3
are maximum*
X
X
L
No Count
L
Q0 through Q3 are maximum when Q3 Q2 Q1 Q0 = 1111.
OUTPUT STATE DIAGRAM
Binary Counters
0
15
14
13
12
1
2
3
4
5
6
7
8
11
10
9


Số phần tương tự - MC74HCXXXAD

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Motorola, Inc
MC74HCXXXAD MOTOROLA-MC74HCXXXAD Datasheet
148Kb / 6P
   Quad 3-State Noninverting Buffers
MC74HCXXXAD MOTOROLA-MC74HCXXXAD Datasheet
249Kb / 8P
   High?밣erformance Silicon?밎ate CMOS
MC74HCXXXAD MOTOROLA-MC74HCXXXAD Datasheet
197Kb / 6P
   QUAD 2-INPUT NAND GATE WITH SCHMITT-TRIGGER INPUTS HIGH-PERFORMANCE SILICON-GATE CMOS
MC74HCXXXAD MOTOROLA-MC74HCXXXAD Datasheet
243Kb / 8P
   High?밣erformance Silicon?밎ate CMOS
MC74HCXXXAD MOTOROLA-MC74HCXXXAD Datasheet
250Kb / 9P
   8-BIT SERIAL-INPUT/PARALLEL-OUTPUT SHIFT REGISTER
More results

Mô tả tương tự - MC74HCXXXAD

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Motorola, Inc
MC54-74HC640A MOTOROLA-MC54-74HC640A Datasheet
155Kb / 7P
   High?밣erformance Silicon?밎ate CMOS
MC5474HC245A MOTOROLA-MC5474HC245A Datasheet
203Kb / 6P
   High?밣erformance Silicon?밎ate CMOS
74HC390A MOTOROLA-74HC390A Datasheet
268Kb / 9P
   High?밣erformance Silicon?밎ate CMOS
MC5474HC4351 MOTOROLA-MC5474HC4351 Datasheet
480Kb / 13P
   High?밣erformance Silicon?밎ate CMOS
MC54F74HC164A MOTOROLA-MC54F74HC164A Datasheet
245Kb / 9P
   High?밣erformance Silicon?밎ate CMOS
MC5474HC08A MOTOROLA-MC5474HC08A Datasheet
165Kb / 7P
   High?밣erformance Silicon?밎ate CMOS
MC5474HC175A MOTOROLA-MC5474HC175A Datasheet
248Kb / 8P
   High?밣erformance Silicon?밎ate CMOS
MC54-74HC132A MOTOROLA-MC54-74HC132A Datasheet
192Kb / 6P
   High?밣erformance Silicon?밎ate CMOS
MC54-74HC4351 MOTOROLA-MC54-74HC4351 Datasheet
480Kb / 13P
   High?밣erformance Silicon?밎ate CMOS
MC54-74HCT373A MOTOROLA-MC54-74HCT373A Datasheet
196Kb / 8P
   High?밣erformance Silicon?밎ate CMOS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com