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參數資料
| 型號： | SN54HC139W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 800mA, Adjustable Output 1.35 to 10V , Low Dropout Voltage Regulator; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50 |
| 中文描述： | 雙程線，4線解碼器/解復用器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 535K |
| 代理商： | SN54HC139W |
SCLS108D DECEMBER 1982 REVISED SEPTEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Targeted Specifically for High-Speed
Memory Decoders and Data-Transmission
Systems
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-
μ
A Max I
CC
Typical t
pd
= 10 ns
±
4-mA Output Drive at 5 V
Low Input Current of 1
μ
A Max
Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
description/ordering information
The
high-performance
data-routing applications requiring very short
propagation delay times. In high-performance
memory systems, these decoders can minimize
the effects of system decoding. When employed
with high-speed memories utilizing a fast enable
circuit, the delay time of these decoders and the
enable time of the memory usually are less than
the typical access time of the memory. This means
that the effective system delay introduced by the
decoders is negligible.
’HC139
devices
are
designed
for
or
memory-decoding
ORDERING INFORMATION
TA
PACKAGE
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube of 25
SN74HC139N
SN74HC139N
Tube of 40
SN74HC139D
SOIC D
Reel of 2500
SN74HC139DR
HC139
Reel of 250
SN74HC139DT
40 C to 85 C
SOP NS
Reel of 2000
SN74HC139NSR
HC139
SSOP DB
Reel of 2000
SN74HC139DBR
HC139
Tube of 90
SN74HC139PW
TSSOP PW
Reel of 2000
SN74HC139PWR
HC139
Reel of 250
SN74HC139PWT
CDIP J
Tube of 25
SNJ54HC139J
SNJ54HC139J
55 C to 125 C
CFP W
Tube of 150
SNJ54HC139W
SNJ54HC139W
LCCC FK
Tube of 55
SNJ54HC139FK
SNJ54HC139FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2A
2B
NC
2Y0
2Y1
1B
1Y0
NC
1Y1
1Y2
1
1
N
2
2
V
2
1
G
N
SN54HC139 . . . FK PACKAGE
(TOP VIEW)
NC No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
SN54HC139 . . . J OR W PACKAGE
SN74HC139 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
Copyright
2003, Texas Instruments Incorporated
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