SN74LS240 八路缓冲器和线路驱动器
SN74LS240 描述
These octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G)\ inputs, and complementary output-control (G and G\) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS’ and SN74S’ devices can be used to drive terminated lines down to 133 
.
|
SN74LS240 |
| Voltage Nodes(V) |
5 |
| Vcc range(V) |
4.75 to 5.25 |
| Input Level |
TTL |
| Output Level |
TTL |
| No. of Outputs |
8 |
| Output Drive(mA) |
-15/24 |
| tpd max(ns) |
18 |
| Static Current |
35.5 |
| Logic |
Inv |
| Technology Family |
LS |
| Rating |
Catalog |
SN74LS240 特性
- 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
- PNP Inputs Reduce DC Loading
- Hysteresis at Inputs Improves Noise Margins
SN74LS240 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| SN74LS240DW |
ACTIVE |
0 to 70 |
0.55 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
|
| SN74LS240DWG4 |
ACTIVE |
0 to 70 |
0.55 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
|
| SN74LS240DWR |
ACTIVE |
0 to 70 |
0.46 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| SN74LS240DWRE4 |
ACTIVE |
0 to 70 |
0.46 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| SN74LS240DWRG4 |
ACTIVE |
0 to 70 |
0.46 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| SN74LS240J |
OBSOLETE |
0 to 70 |
|
CDIP (J) | 20 |
|
|
| SN74LS240N |
ACTIVE |
0 to 70 |
0.55 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
|
| SN74LS240N3 |
OBSOLETE |
0 to 70 |
|
PDIP (N) | 20 |
|
|
| SN74LS240NE4 |
ACTIVE |
0 to 70 |
0.55 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
|
| SN74LS240NSR |
ACTIVE |
0 to 70 |
0.55 | 1ku |
SO (NS) | 20 |
2000 | LARGE T&R |
|
| SN74LS240NSRE4 |
ACTIVE |
0 to 70 |
0.55 | 1ku |
SO (NS) | 20 |
2000 | LARGE T&R |
|
| SN74LS240NSRG4 |
ACTIVE |
0 to 70 |
0.55 | 1ku |
SO (NS) | 20 |
2000 | LARGE T&R |
|
SN74LS240 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| SN74LS240DW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240DW |
SN74LS240DW |
| SN74LS240DWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240DWG4 |
SN74LS240DWG4 |
| SN74LS240DWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240DWR |
SN74LS240DWR |
| SN74LS240DWRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240DWRE4 |
SN74LS240DWRE4 |
| SN74LS240DWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240DWRG4 |
SN74LS240DWRG4 |
| SN74LS240N |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74LS240N |
SN74LS240N |
| SN74LS240NE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74LS240NE4 |
SN74LS240NE4 |
| SN74LS240NSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240NSR |
SN74LS240NSR |
| SN74LS240NSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240NSRE4 |
SN74LS240NSRE4 |
| SN74LS240NSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74LS240NSRG4 |
SN74LS240NSRG4 |
SN74LS240 应用技术支持与电子电路设计开发资源下载
- SN74LS240 数据资料 dataSheet 下载.PDF
- TI 德州仪器缓冲器、驱动器/收发器产品选型与价格 . xls
- CMOS 非缓冲反向器在振荡器电路中的使用 (PDF 951 KB)
- Semiconductor Packing Methodology (PDF 3005 KB)
- 逻辑产品选择指南 2006/2007 （修订版 Z）(4462KB)
- 标准线性和逻辑产品 5 分钟指南 (786KB)
- 了解和解释标准逻辑数据表
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)
