SN74AC240 具有三态输出的八路缓冲器/驱动器

SN74AC240 描述

These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The ’AC240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes inverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver

SN74AC240
Voltage Nodes(V) 5, 3.3  
Vcc range(V) 2.0 to 6.0  
Input Level CMOS  
Output Level CMOS  
No. of Outputs 8  
Output Drive(mA) -24/24  
tpd max(ns) 6.5  
Static Current 0.004  
Logic Inv  
Technology Family AC  
Rating Catalog
SN74AC240 特性
SN74AC240 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
SN74AC240DBLE OBSOLETE -40 to 85   SSOP (DB) | 20    
SN74AC240DBR ACTIVE -40 to 85 0.44 | 1ku SSOP (DB) | 20 2000 | LARGE T&R  
SN74AC240DBRE4 ACTIVE -40 to 85 0.44 | 1ku SSOP (DB) | 20 2000 | LARGE T&R  
SN74AC240DBRG4 ACTIVE -40 to 85 0.44 | 1ku SSOP (DB) | 20 2000 | LARGE T&R  
SN74AC240DW ACTIVE -40 to 85 0.48 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74AC240DWE4 ACTIVE -40 to 85 0.48 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74AC240DWG4 ACTIVE -40 to 85 0.48 | 1ku SOIC (DW) | 20 25 | TUBE  
SN74AC240DWR ACTIVE -40 to 85 0.40 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74AC240DWRE4 ACTIVE -40 to 85 0.40 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74AC240DWRG4 ACTIVE -40 to 85 0.40 | 1ku SOIC (DW) | 20 2000 | LARGE T&R  
SN74AC240N ACTIVE -40 to 85 0.44 | 1ku PDIP (N) | 20 20 | TUBE  
SN74AC240NE4 ACTIVE -40 to 85 0.44 | 1ku PDIP (N) | 20 20 | TUBE  
SN74AC240NSR ACTIVE -40 to 85 0.44 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74AC240NSRE4 ACTIVE -40 to 85 0.44 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74AC240NSRG4 ACTIVE -40 to 85 0.44 | 1ku SO (NS) | 20 2000 | LARGE T&R  
SN74AC240PW ACTIVE -40 to 85 0.48 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74AC240PWE4 ACTIVE -40 to 85 0.48 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74AC240PWG4 ACTIVE -40 to 85 0.48 | 1ku TSSOP (PW) | 20 70 | TUBE  
SN74AC240PWLE OBSOLETE -40 to 85   TSSOP (PW) | 20    
SN74AC240PWR ACTIVE -40 to 85 0.40 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74AC240PWRE4 ACTIVE -40 to 85 0.40 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74AC240PWRG4 ACTIVE -40 to 85 0.40 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R  
SN74AC240 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
SN74AC240DBR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240D SN74AC240D
SN74AC240DBRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DBR SN74AC240DBR
SN74AC240DBRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DBRE4 SN74AC240DBRE4
SN74AC240DW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DBRG4 SN74AC240DBRG4
SN74AC240DWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DE4 SN74AC240DE4
SN74AC240DWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DG4 SN74AC240DG4
SN74AC240DWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DR SN74AC240DR
SN74AC240DWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DRE4 SN74AC240DRE4
SN74AC240DWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240DRG4 SN74AC240DRG4
SN74AC240N Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AC240N SN74AC240N
SN74AC240NE4 Pb-Free (RoHS)  CU NIPDAU  N/A for Pkg Type SN74AC240NE4 SN74AC240NE4
SN74AC240NSR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240NSR SN74AC240NSR
SN74AC240NSRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240NSRE4 SN74AC240NSRE4
SN74AC240NSRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240NSRG4 SN74AC240NSRG4
SN74AC240PW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PW SN74AC240PW
SN74AC240PWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PWE4 SN74AC240PWE4
SN74AC240PWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PWG4 SN74AC240PWG4
SN74AC240PWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PWR SN74AC240PWR
SN74AC240PWRE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PWRE4 SN74AC240PWRE4
SN74AC240PWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AC240PWRG4 SN74AC240PWRG4
SN74AC240 应用技术支持与电子电路设计开发资源下载
  1. SN74AC240 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器缓冲器、驱动器/收发器产品选型与价格 . xls
  3. CMOS 非缓冲反向器在振荡器电路中的使用 (PDF 951 KB)
  4. Semiconductor Packing Methodology (PDF 3005 KB)
  5. 逻辑产品选择指南 2006/2007 (修订版 Z)(4462KB)
  6. 标准线性和逻辑产品 5 分钟指南 (786KB)
  7. 了解和解释标准逻辑数据表
  8. LOGIC Pocket Data Book (PDF 6001 KB)
  9. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  10. Logic Cross-Reference (PDF 2938 KB)