MC74ACT299 ON Semiconductor, MC74ACT299 Datasheet

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MC74ACT299

Manufacturer Part Number
MC74ACT299
Description
8-Input Universal Shift/ Storage Register with Common Parallel I/O Pins
Manufacturer
ON Semiconductor
Datasheet
www.DataSheet4U.com
MC74AC299, MC74ACT299
8−Input Universal Shift/
Storage Register with
Common Parallel I/O Pins
register with 3−state outputs. Four modes of operation are possible:
hold (store), shift left, shift right and load data. The parallel load inputs
and flip−flop outputs are multiplexed to reduce the total number of
package pins. Additional outputs are provided for flip−flops Q
allow easy serial cascading. A separate active LOW Master Reset is
used to reset the register.
April, 2003 − Rev. 6
PIN ASSIGNMENT
PIN
CP
DS
DS
S
MR
OE
I/O
Q
The MC74AC299/74ACT299 is an 8−bit universal shift/storage
Common Parallel I/O for Reduced Pin Count
Additional Serial Inputs and Outputs for Expansion
Four Operating Modes: Shift Left, Shift Right, Load and Store
3−State Outputs for Bus−Oriented Applications
Outputs Source/Sink 24 mA
0
0
Semiconductor Components Industries, LLC, 2003
V
ACT299 Has TTL Compatible Inputs
20
S
, S
, Q
CC
1
0
0
7
1
0
Figure 1. Pinout: 20−Lead Packages Conductors
−I/O
, OE
1
7
OE
7
S
19
2
2
1
1
OE
DS
18
3
FUNCTION
Clock Pulse Input
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Asynchronous Master Reset
3−State Output Enable Inputs
Parallel Data Inputs or 3−State Parallel Outputs
Serial Outputs
7
2
I/O
Q
17
4
7
6
(Top View)
I/O
I/O
16
5
7
4
I/O
I/O
15
6
5
2
I/O
I/O
14
7
3
0
I/O
Q
13
8
0
1
MR
CP
12
9
GND
DS
10
11
0
1
0
, Q
7
to
MC74AC299N
MC74ACT299N
MC74AC299DW
MC74AC299DWR2
MC74ACT299DW
MC74ACT299DWR2
See general marking information in the device marking
section on page 9 of this data sheet.
20
DEVICE MARKING INFORMATION
1
Device
20
ORDERING INFORMATION
http://onsemi.com
1
SOIC−20
SOIC−20
PDIP−20
PDIP−20
SOIC−20
SOIC−20
Package
Publication Order Number:
DW SUFFIX
CASE 738
CASE 751
N SUFFIX
PDIP−20
SO−20
1000 Tape & Reel
1000 Tape & Reel
MC74AC299/D
38 Units/Rail
38 Units/Rail
18 Units/Rail
18 Units/Rail
www.DataSheet4U.com
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MC74ACT299 Summary of contents

Page 1

... MC74AC299, MC74ACT299 8−Input Universal Shift/ Storage Register with Common Parallel I/O Pins The MC74AC299/74ACT299 is an 8−bit universal shift/storage register with 3−state outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data. The parallel load inputs and flip−flop outputs are multiplexed to reduce the total number of package pins. Additional outputs are provided for flip− ...

Page 2

... MC74AC299, MC74ACT299 I/O I/O I/O I/O I/O I/O I Figure 2. Logic Symbol I NOTE: That this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Figure 3. Logic Diagram http://onsemi.com ...

Page 3

... V from 0 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. IN MC74AC299, MC74ACT299 A HIGH signal on either OE buffers and puts the I/O pins in the high impedance state. In this condition the shift, hold, load and reset operations can still occur. The 3− ...

Page 4

... Maximum Input f f max Frequency Propagation Delay t t PLH PLH Propagation Delay t t PHL PHL *Voltage Range 3 3.3 V 0.3 V. Voltage Range 5 5.0 V 0.5 V. MC74AC299, MC74ACT299 74AC 74AC +25 C − (V) +85 C Typ Guaranteed Limits 3.0 1.5 2.1 4.5 2.25 3.15 5.5 2.75 3.85 3.0 1.5 0.9 4 ...

Page 5

... Pulse Width LOW CP Pulse Width, LOW w MR Pulse Width LOW MR Pulse Width, LOW Recovery TIme t t rec *Voltage Range 3 3.3 V 0.3 V. Voltage Range 5 5.0 V 0.5 V. MC74AC299, MC74ACT299 74AC + (V) (V) ( ...

Page 6

... OHD I Maximum Quiescent esce CC Supply Current *All outputs loaded; thresholds on input associated with output under test. †Maximum test duration 2.0 ms, one output loaded at a time. MC74AC299, MC74ACT299 74ACT 74ACT +25 C − (V) +85 C Typ Guaranteed Limits 4 ...

Page 7

... PZL OE to I/O n Out ut Disable Time Output Disable Time t t PHZ PHZ OE to I/O n Out ut Disable Time Output Disable Time t t PLZ PLZ OE to I/O n *Voltage Range 5 5.0 V 0.5 V. MC74AC299, MC74ACT299 74ACT (V) L Min Typ 5 120 120 − − ...

Page 8

... MR Pulse Width LOW MR Pulse Width, LOW Recovery Time Recovery Time t t rec *Voltage Range 5 5.0 V 0.5 V. CAPACITANCE Symbol Parameter C Input Capacitance IN C Power Dissipation Capacitance PD MC74AC299, MC74ACT299 74ACT + ( Typ Guaranteed Minimum 5 − − 5.0 − ...

Page 9

... MC74AC299, MC74ACT299 MARKING DIAGRAMS PDIP−20 SO−20 AC299 MC74AC299N AWLYYWW AWLYYWW ACT299 MC74ACT299N AWLYYWW AWLYYWW A = Assembly Location WL Wafer Lot YY Year WW Work Week http://onsemi.com 9 ...

Page 10

... PLANE 0.25 (0.010 20X 0. 18X MC74AC299, MC74ACT299 PACKAGE DIMENSIONS PDIP−20 N SUFFIX 20 PIN PLASTIC DIP PACKAGE CASE 738−03 ISSUE 0.25 (0.010 SO−20 DW SUFFIX 20 PIN PLASTIC SOIC PACKAGE CASE 751D− ...

Page 11

... Notes MC74AC299, MC74ACT299 http://onsemi.com 11 ...

Page 12

... Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800−282−9855 Toll Free USA/Canada MC74AC299, MC74ACT299 JAPAN: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 ON Semiconductor Website: http://onsemi ...

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