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MC74HCT259AのメーカーはON Semiconductorです、この部品の機能は「8-Bit Addressable Latch 1-of-8 Decoder」です。 |
部品番号 | MC74HCT259A |
| |
部品説明 | 8-Bit Addressable Latch 1-of-8 Decoder | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとMC74HCT259Aダウンロード(pdfファイル)リンクがあります。 Total 9 pages
MC74HCT259A
8-Bit Addressable Latch
1-of-8 Decoder with LSTTL
Inputs
High−Performance Silicon−Gate CMOS
The MC74HCT259A is identical in pinout to the LS259. The device
inputs are compatible with standard CMOS and LSTTL outputs.
The HCT259A has four modes of operation as shown in the mode
selection table. In the addressable latch mode, the data on Data In is
written into the addressed latch. The addressed latch follows the data
input with all non−addressed latches remaining in their previous
states. In the memory mode, all latches remain in their previous state
and are unaffected by the Data or Address inputs. In the one−of−eight
decoding or demultiplexing mode, the addressed output follows the
state of Data In with all other outputs in the LOW state. In the Reset
mode all outputs are LOW and unaffected by the address and data
inputs. When operating the HCT259A as an addressable latch,
changing more than one bit of the address could impose a transient
wrong address. Therefore, this should only be done while in the
memory mode.
Features
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1 mA
• High Noise Immunity Characteristic of CMOS Devices
• These are Pb−Free Devices
http://onsemi.com
16
1
SOIC−16
D SUFFIX
CASE 751B
MARKING
DIAGRAMS
16
HCT259AG
AWLYWW
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
HCT
259A
ALYWG
G
1
A
WL, L
YY, Y
= Assembly Location
= Wafer Lot
= Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
PIN ASSIGNMENT
A0 1
A1 2
A2 3
Q0 4
Q1 5
Q2 6
Q3 7
GND 8
16 VCC
15 RESET
14 ENABLE
13 DATA IN
12 Q7
11 Q6
10 Q5
9 Q4
MODE SELECTION TABLE
Enable
L
H
L
H
Reset
H
H
L
L
Mode
Addressable Latch
Memory
8−Line Demultiplexer
Reset
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
April, 2011 − Rev. 3
1
Publication Order Number:
MC74HCT259A/D
1 Page MC74HCT259A
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol
VIH
VIL
VOH
Parameter
Minimum High−Level Input
Voltage
Maximum Low−Level Input
Voltage
Minimum High−Level Output
Voltage
VOL Maximum Low−Level Output
Voltage
Iin Maximum Input Leakage
Current
ICC Maximum Quiescent Supply
Current (per Package)
Test Conditions
Vout = 0.1 V or VCC − 0.1 V
|Iout| v 20 mA
Vout = 0.1 V or VCC − 0.1 V
|Iout| v 20 mA
Vin = VIH or VIL
|Iout| v 20 mA
Vin = VIH or VIL |Iout| v 5.2 mA
Vin = VIH or VIL
|Iout| v 20 mA
Vin = VIH or VIL |Iout| v 5.2 mA
Vin = VCC or GND
Vin = VCC or GND
Iout = 0 mA
VCC
V
4.5
5.5
4.5
5.5
4.5
5.5
4.5
4.5
5.5
4.5
5.5
5.5
DICC
Additional Quiescent Supply
Current
Vin = 2.4V, Any One Input
Vin = VCC or GND, Other Inputs
Iout = 0mA
5.5
Guaranteed Limit
− 55 to
25°C
v 85°C v 125°C
2.0 2.0 2.0
2.0 2.0 2.0
0.8 0.8 0.8
0.8 0.8 0.8
4.4 4.4 4.4
5.4 5.4 5.4
3.98 3.84 3.70
0.1 0.1 0.1
0.1 0.1 0.1
0.26 0.33 0.40
± 0.1
± 1.0
± 1.0
Unit
V
V
V
V
mA
4 40 160 mA
≥ −55°C
2.9
25 to 125°C
2.4
mA
http://onsemi.com
3
3Pages DATA INPUT 13
MC74HCT259A
D
D
4 Q0
5 Q1
D 6 Q2
ADDRESS
INPUTS
A0
A1
A2
3 TO 8
DECODER
ENABLE 14
D 7 Q3
D 9 Q4
D 10 Q5
D 11 Q6
D
RESET 15
Figure 8. Expanded Logic Diagram
12 Q7
ORDERING INFORMATION
Device
Package
Shipping†
MC74HCT259ADG
SOIC−16
(Pb−Free)
48 Units / Rail
MC74HCT259ADR2G
SOIC−16
(Pb−Free)
2500 Tape & Reel
MC74HCT259ADTR2G
TSSOP−16*
2500 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
http://onsemi.com
6
6 Page | |||
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MC74HCT259A | 8-Bit Addressable Latch 1-of-8 Decoder | ON Semiconductor |