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參數資料
| 型號： | MM74HCT138N |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DECODER 3-TO-8 LINE 16-PDIP |
| 標準包裝： | 25 |
| 系列： | 74HCT |
| 類型： | 解碼器 |
| 電路： | 1 x 3:8 |
| 獨立電路： | 1 |
| 輸出電流高，低： | 4.8mA，4.8mA |
| 電壓電源： | 單電源 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 16-DIP |
| 包裝： | 管件 |
February 1984
Revised February 1999
MM74HCT138
3-t
o
-8
Li
ne
Deco
der
1999 Fairchild Semiconductor Corporation
DS005362.prf
www.fairchildsemi.com
MM74HCT138
3-to-8 Line Decoder
General Description
The MM74HCT138 decoder utilizes advanced silicon-gate
CMOS technology, and are well suited to memory address
decoding or data routing applications. Both circuits feature
high noise immunity and low power consumption usually
associated with CMOS circuitry, yet have speeds compara-
ble to low power Schottky TTL logic.
The MM74HCT138 have 3 binary select inputs (A, B, and
C). If the device is enabled these inputs determine which
one of the eight normally HIGH outputs will go LOW. Two
active LOW and one active HIGH enables (G1, G2A and
G2B) are provided to ease the cascading decoders.
The decoders’ output can drive 10 low power Schottky TTL
equivalent loads and are functionally and pin equivalent to
the 74LS138. All inputs are protected from damage due to
static discharge by diodes to VCC and ground.
MM74HCT devices are intended to interface between TTL
and NMOS components and standard CMOS devices.
These parts are also plug-in replacements for LS-TTL
devices and can be used to reduce power consumption in
existing designs.
Features
s TTL input compatible
s Typical propagation delay: 20 ns
s Low quiescent current: 80
A maximum (74HCT Series)
s Low input current: 1
A maximum
s Fanout of 10 LS-TTL loads
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Order Number
Package Number
Package Description
MM74HCT138M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
MM74HCT138SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HCT138MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HCT138N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MM74HCT138N | 制造商:Fairchild Semiconductor Corporation 功能描述:74HCT CMOS 74HCT138 DIP16 5.5V |
| MM74HCT138N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3-To-8-Line Demultiplexer |
| MM74HCT138N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3-To-8-Line Demultiplexer |
| MM74HCT138N_Q | 功能描述:編碼器、解碼器、復用器和解復用器 3-to-8 Line Decoder 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 |
| MM74HCT138SJ | 功能描述:編碼器、解碼器、復用器和解復用器 3-to-8 Line Decoder 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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