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參數資料
| 型號： | CD74HC147NSR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | High-Speed CMOS Logic 10- to 4-Line Priority Encoder |
| 中文描述： | 高速CMOS邏輯10 - 4線優先編碼器 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 348K |
| 代理商： | CD74HC147NSR |
1
Data sheet acquired from Harris Semiconductor
SCHS149F
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 ’HC147 and CD74HCT147 are high speed silicon-gate
CMOS devices and are pin-compatible with low power
Schottky TTL (LSTTL).
The ’HC147 and CD74HCT147 9-input priority 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.
Pinout
CD54HC147 (CERDIP)
CD74HC147 (PDIP, SOIC, SOP, TSSOP)
CD74HCT147 (PDIP, TSSOP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
CD54HC147F3A
-55 to 125
16 Ld CERDIP
CD74HC147E
-55 to 125
16 Ld PDIP
CD74HC147M
-55 to 125
16 Ld SOIC
CD74HC147MT
-55 to 125
16 Ld SOIC
CD74HC147M96
-55 to 125
16 Ld SOIC
CD74HC147NSR
-55 to 125
16 Ld SOP
CD74HC147PW
-55 to 125
16 Ld TSSOP
CD74HC147PWR
-55 to 125
16 Ld TSSOP
CD74HC147PWT
-55 to 125
16 Ld TSSOP
CD74HCT147E
-55 to 125
16 Ld PDIP
NOTE: When ordering, use the entire part number. The suffixes
96 and R denote tape and reel. The suffix T denotes a
small-quantity reel of 250.
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 - Revised November 2003
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
2003, Texas Instruments Incorporated
CD54HC147, CD74HC147,
CD74HCT147
High-Speed CMOS Logic
10- to 4-Line Priority Encoder
[ /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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相關代理商/技術參數 |
參數描述 |
|---|---|
| CD74HC147NSRE4 | 功能描述:編碼器、解碼器、復用器和解復用器 Hi-Sp CMOS 10-4 Line Priority Encoder RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HC147NSRG4 | 功能描述:編碼器、解碼器、復用器和解復用器 Hi Spd CMOS 10-4 Line Priority Enc RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HC147PW | 功能描述:編碼器、解碼器、復用器和解復用器 Hi-Sp CMOS 10-4 Line Priority Encoder RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HC147PWE4 | 功能描述:編碼器、解碼器、復用器和解復用器 Hi-Sp CMOS 10-4 Line Priority Encoder RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HC147PWG4 | 功能描述:編碼器、解碼器、復用器和解復用器 Hi Spd CMOS 10-4 Line Priority Enc RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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