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SN74HC244-EP 具有三态输出的增强型产品八路缓冲器和线路驱动器

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’HC244 are organized as two 4-bit buffers/drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes noninverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

	SN74HC244-EP
Voltage Nodes (V)	6, 4.5, 2
Vcc range (V)	2.0 to 6.0
Logic	True
Input Level	CMOS
Output Level	CMOS
Output Drive (mA)	-7.8/7.8
No. of Gates	10
No. of Outputs	8
tpd max (ns)	34
Static Current	0.16
Rating	HiRel Enhanced Product
Technology Family	HC

SN74HC244-EP 特性

• Controlled Baseline
  • One Assembly/Test Site, One Fabrication Site
• Extended Temperature Performance of –55° to 125°C
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product Change Notification
• Qualification Pedigree
• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
• High-Current Outputs Drive up to 15 LSTTL Loads

SN74HC244-EP 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
SN74HC244MDWREP	ACTIVE	-55 to 125	0.85 | 1ku	SOIC (DW) | 20	2000 | LARGE T&R
SN74HC244QDWREP	ACTIVE	-40 to 125	0.45 | 1ku	SOIC (DW) | 20	2000 | LARGE T&R
SN74HC244QPWREP	ACTIVE	-40 to 125	0.45 | 1ku	TSSOP (PW) | 20	2000 | LARGE T&R
SN74HC244QPWREPG4	ACTIVE	-40 to 125	0.45 | 1ku	TSSOP (PW) | 20	2000 | LARGE T&R
V62/03607-01XE	ACTIVE	-55 to 125	0.85 | 1ku	SOIC (DW) | 20	2000 | LARGE T&R
V62/03607-02XE	ACTIVE	-40 to 125	0.45 | 1ku	SOIC (DW) | 20	2000 | LARGE T&R
V62/03607-02YE	ACTIVE	-40 to 125	0.45 | 1ku	TSSOP (PW) | 20	2000 | LARGE T&R

SN74HC244-EP 应用手册

标题	类型	大小
选择合适的德州仪器 (TI) 信号开关	PDF	1091
Shelf-Life Evaluation of Lead-Free Component Finishes	PDF	1310
Understanding and Interpreting Standard-Logic Data Sheets	PDF	857
TI IBIS File Creation, Validation, and Distribution Processes	PDF	380
Implications of Slow or Floating CMOS Inputs	PDF	101
CMOS Power Consumption and CPD Calculation	PDF	89
Designing With Logic	PDF	186
Live Insertion	PDF	150
Input and Output Characteristics of Digital Integrated Circuits	PDF	1708
SN54/74HCT CMOS Logic Family Applications and Restrictions	PDF	102
Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc	PDF	43

SN74HC244-EP 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
SN74HC244MDWREP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74HC244MDWREP	SN74HC244MDWREP
SN74HC244QDWREP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74HC244QDWREP	SN74HC244QDWREP
SN74HC244QPWREP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74HC244QPWREP	SN74HC244QPWREP
SN74HC244QPWREPG4	Pb-Free (RoHS)	SNAGCU	Level-1-260C-UNLIM	SN74HC244QPWREPG4	SN74HC244QPWREPG4
V62/03607-01XE	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	V62/03607-01XE	V62/03607-01XE
V62/03607-02XE	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	V62/03607-02XE	V62/03607-02XE
V62/03607-02YE	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	V62/03607-02YE	V62/03607-02YE

SN74HC244-EP 应用技术支持与电子电路设计开发资源下载

1. SN74HC244-EP 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. (选择指南)逻辑器件指南 2009 (Rev. Z)
4. (选择指南)高级总线接口逻辑器件选择指南
5. (用户指南)LOGIC Pocket Data Book
6. (用户指南)Signal Switch Data Book
7. Logic Cross-Reference (PDF 2938 KB)