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參數(shù)資料
| 型號： | CD74HCT147M |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LM78LXX Series 3-Terminal Positive Regulators; Package: MICRO SMD; No of Pins: 8 |
| 中文描述： | 高速CMOS邏輯10至4線優(yōu)先編碼器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 41K |
| 代理商： | CD74HCT147M |
1
Data sheet acquired from Harris Semiconductor
SCHS149
Features
Buffered Inputs and Outputs
Typical Propagation Delay: 13ns at V
CC
= 5V,
C
L
= 15pF, T
A
= 25
o
C
Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55
o
C to 125
o
C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL
Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30% of V
CC
at V
CC
= 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
≤
1
μ
A at V
OL
, V
OH
Description
The Harris CD74HC147and CD74HCT147 are high speed
silicon-gate CMOS devices and are pin-compatible with low
power Schottky TTL (LSTTL).
The
encoders accept data from nine active LOW inputs (l
1
to l
9
)
and provide binary representation on the four active LOW
inputs (Y0 to Y3). A priority is assigned to each input so that
when two or more inputs are simultaneously active, the input
with the highest priority is represented on the output, with
input line l
9
having the highest priority.
These devices provide the 10-line to 4-line priority encoding
function by use of the implied decimal “zero”. The “zero” is
encoded when all nine data inputs are HIGH, forcing all four
outputs HIGH.
CD74HC147
and
CD74HCT147
9-input
priority
Pinout
CD74HC147, CD74HCT147
(PDIP, SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE (
o
C)
PACKAGE
PKG.
NO.
CD74HC147E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT147E
-55 to 125
16 Ld PDIP
E16.3
CD74HC147M
-55 to 125
16 Ld SOIC
M16.15
CD74HCT147M
-55 to 125
16 Ld SOIC
M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Waferordieforthispartnumberisavailablewhichmeetsallelec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
I4
I5
I6
I7
I8
Y2
GND
Y1
V
CC
Y3
I3
I2
I1
I9
Y0
NC
September 1997
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1997
CD74HC147,
CD74HCT147
High Speed CMOS Logic
10-to-4 Line Priority Encoder
File Number
1773.1
[ /Title
(CD74
HC147
,
CD74
HCT14
7)
/Sub-
ject
(High
Speed
CMOS
Logic
10-to-4
Line
Prior-
ity
Encode
r)
/Autho
r ()
/Key-
words
(High
Speed
CMOS
Logic
10-to-4
Line
Prior-
ity
Encode
r, High
Speed
CMOS
Logic
10-to-4
Line
Prior-
ity
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CD74HCT147M96 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CD74HCT14E | 功能描述:變換器 Hex Schmitt Trigger RoHS:否 制造商:NXP Semiconductors 電路數(shù)量:6 邏輯系列:74ABT 邏輯類型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube |
| CD74HCT14E | 制造商:Texas Instruments 功能描述:Hex inverting schmitt-trigger high spee |
| CD74HCT14E | 制造商:Texas Instruments 功能描述:74HCT CMOS 74HCT14 DIP14 5.5V |
| CD74HCT14EE4 | 功能描述:變換器 Hi-Sp CMOS Logic Hex Schmitt-Trig Inv RoHS:否 制造商:NXP Semiconductors 電路數(shù)量:6 邏輯系列:74ABT 邏輯類型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube |
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