DataSheet.jp

74HCT138 の電気的特性と機能

74HCT138のメーカーはNXP Semiconductorsです、この部品の機能は「3-to-8 line decoder/demultiplexer」です。


製品の詳細 ( Datasheet PDF )

部品番号 74HCT138
部品説明 3-to-8 line decoder/demultiplexer
メーカ NXP Semiconductors
ロゴ NXP Semiconductors ロゴ 




このページの下部にプレビューと74HCT138ダウンロード(pdfファイル)リンクがあります。

Total 18 pages

No Preview Available !

74HCT138 Datasheet, 74HCT138 PDF,ピン配置, 機能
74HC138; 74HCT138
3-to-8 line decoder/demultiplexer; inverting
Rev. 6 — 28 December 2015
Product data sheet
1. General description
The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2)
to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs
(E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH.
This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines)
decoder with just four ‘138’ ICs and one inverter. The ‘138’ can be used as an eight output
demultiplexer by using one of the active LOW enable inputs as the data input and the
remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of
current limiting resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
Complies with JEDEC standard no. 7A
Input levels:
For 74HC138: CMOS level
For 74HCT138: TTL level
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active LOW mutually exclusive outputs
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and from 40 C to +125 C
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
74HC138D
40 C to +125 C SO16
74 HCT138D
74HC138DB
40 C to +125 C SSOP16
74HCT138DB
Description
plastic small outline package; 16 leads;
body width 3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
Version
SOT109-1
SOT338-1

1 Page





74HCT138 pdf, ピン配列
NXP Semiconductors
5. Pinning information
5.1 Pinning
74HC138; 74HCT138
3-to-8 line decoder/demultiplexer; inverting
$ 
$ 
$ 
( 
( 
( 
< 
*1' 
 9&&
 <
 <
 <

 <
 <
 <
 <
DDG
Fig 4. Pin configuration SO16 and (T)SSOP16
WHUPLQDO
LQGH[DUHD
$ 
$ 
( 
( 
( 
< 

*1' 
 <
 <
 <
 <
 <
 <
DDG
7UDQVSDUHQWWRSYLHZ
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 5. Pin configuration DHVQFN16
5.2 Pin description
Table 2. Pin description
Symbol
A0, A1, A2
E1, E2
E3
Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7
GND
VCC
Pin
1, 2, 3
4, 5
6
15, 14, 13, 12, 11, 10, 9, 7
8
16
Description
address input A0, A1, A2
enable input E1, E2 (active LOW)
enable input E3 (active HIGH)
output Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 (active LOW)
ground (0 V)
positive supply voltage
74HC_HCT138
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 28 December 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
3 of 18


3Pages


74HCT138 電子部品, 半導体
NXP Semiconductors
74HC138; 74HCT138
3-to-8 line decoder/demultiplexer; inverting
Table 6. Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Tamb = 25 C
Tamb = 40 C to
+85 C
Min Typ Max Min Max
CI input
capacitance
- 3.5 -
74HCT138
VIH HIGH-level VCC = 4.5 V to 5.5 V
input voltage
2.0 1.6 -
2.0
-
VIL LOW-level VCC = 4.5 V to 5.5 V
input voltage
- 1.2 0.8
-
0.8
VOH
VOL
II
ICC
ICC
HIGH-level
output voltage
LOW-level
output voltage
input leakage
current
supply current
additional
supply current
VI = VIH or VIL; VCC = 4.5 V
IO = 20 A
IO = 4 mA
VI = VIH or VIL; VCC = 4.5 V
IO = 20 A
IO = 4.0 mA
VI = VCC or GND;
VCC = 5.5 V
VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
VI = VCC 2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO = 0 A
per input pin; An inputs
4.4
3.98
-
-
-
-
-
4.5
4.32
0
0.15
-
-
150
-
-
0.1
0.26
0.1
8.0
540
4.4
3.84
-
-
-
-
-
-
-
0.1
0.33
1.0
80
675
per input pin; En inputs
- 125 450 - 562.5
per input pin; E3 input
- 100 360
-
450
CI input
capacitance
- 3.5 -
-
-
Tamb = 40 C to Unit
+125 C
Min Max
pF
2.0 - V
- 0.8 V
4.4 - V
3.7 - V
- 0.1 V
- 0.4 V
- 1.0 A
- 160 A
- 735 A
- 612.5 A
- 490 A
- - pF
74HC_HCT138
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 28 December 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
6 of 18

6 Page



ページ 合計 : 18 ページ
 
PDF
ダウンロード
[ 74HCT138 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
74HCT132

Quad 2-input NAND Schmitt trigger

Philips
Philips
74HCT132

Quad 2-input NAND Schmitt trigger

NXP Semiconductors
NXP Semiconductors
74HCT132A

MC74HCT132A

ON Semiconductor
ON Semiconductor
74HCT137

3-to-8 line decoder/demultiplexer with address latches inverting

Philips
Philips


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap