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What is MC74AC259?

This electronic component, produced by the manufacturer "ON Semiconductor", performs the same function as "8-BIT ADDRESSABLE LATCH".


MC74AC259 Datasheet PDF - ON Semiconductor

Part Number MC74AC259
Description 8-BIT ADDRESSABLE LATCH
Manufacturers ON Semiconductor 
Logo ON Semiconductor Logo 


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MC74AC259, MC74ACT259
8-Bit Addressable Latch
The MC74AC259/74ACT259 is a high−speed 8−bit addressable
latch designed for general purpose storage applications in digital
systems. It is a multifunctional device capable of storing single line
data in eight addressable latches, and also a 1−of−8 decoder and
demultiplexer with active HIGH outputs. The device also incorporates
an active LOW Common Clear for resetting all latches, as well as an
active LOW Enable. It is functionally identical to the ALS259 8−bit
addressable latch.
Serial−to−Parallel Conversion
Eight Bits of Storage with Output of Each Bit Available
Random (Addressable) Data Entry
Active High Demultiplexing or Decoding Capability
Easily Expandable
Common Clear
These are Pb−Free Devices
VCC MR E D Q7 Q6 Q5 Q4
16 15 14 13 12 11 10 9
www.onsemi.com
16
1
MARKING
DIAGRAM
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx259G
AWLYWW
xxx = AC or ACT
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
12345678
A0 A1 A2 Q0 Q1 Q2 Q3 GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
A0 E D
A1
A2 MR Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
Figure 2. Logic Symbol
MODE SELECT TABLE
E MR
Mode
L H Addressable Latch
H H Memory
L L Active HIGH 8−Channel Demultiplexer
H L Clear
H = HIGH Voltage Level
L = LOW Voltage Level
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 7
1
Publication Order Number:
MC74AC259/D

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MC74AC259 equivalent
MC74AC259, MC74ACT259
DC CHARACTERISTICS
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
74AC
74AC
VCC
(V)
TA = +25°C TA =−40°C to +85°C
Typ Guaranteed Limits
3.0 1.5 2.1
4.5 2.25 3.15
5.5 2.75 3.85
2.1
3.15
3.85
3.0 1.5 0.9
4.5 2.25 1.35
5.5 2.75 1.65
0.9
1.35
1.65
3.0 2.99 2.9
4.5 4.49 4.4
5.5 5.49 5.4
2.9
4.4
5.4
Unit
V
V
V
VOL Maximum Low Level
Output Voltage
3.0 − 2.56
4.5 − 3.86
5.5 − 4.86
3.0 0.002 0.1
4.5 0.001 0.1
5.5 0.001 0.1
2.46
3.76
4.76
0.1
0.1
0.1
V
V
3.0 − 0.36
4.5 − 0.36
5.5 − 0.36
0.44
0.44
0.44
V
IIN Maximum Input
Leakage Current
5.5 − ±0.1
±1.0
μA
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5 − −
5.5 − −
75
−75
mA
mA
ICC Maximum Quiescent
Supply Current
5.5 − 8.0
80
μA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
Conditions
VOUT = 0.1 V
or VCC − 0.1 V
VOUT = 0.1 V
or VCC − 0.1 V
IOUT = −50 μA
*VIN = VIL or VIH
−12 mA
IOH −24 mA
−24 mA
IOUT = 50 μA
*VIN = VIL or VIH
12 mA
IOL 24 mA
24 mA
VI = VCC, GND
VOLD = 1.65 V Max
VOHD = 3.85 V Min
VIN = VCC or GND
www.onsemi.com
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