SN54LVCH245A-SP 具有三态输出的八路总线收发器

The SN54LVCH245A octal bus transceiver is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVCH245A octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

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

	SN54LVCH245A-SP
Voltage Nodes (V)	3.3, 2.7, 2.5, 1.8
Vcc range (V)	2.0 to 3.6
Input Level	TTL/CMOS
Output Level	LVTTL
Output Drive (mA)	-24/24
No. of Outputs	8
No. of Bits	8
Logic	True
Static Current	0.01
tpd max (ns)	7
Rating	Space
Technology Family	LVC

SN54LVCH245A-SP 特性

Operate From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 6.3 ns at 3.3 V
Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25°C
Support Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
Ioff Supports Partial-Power-Down Mode Operation
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 250 mA Per JESD 17
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)

SN54LVCH245A-SP 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
5962-9754301V2A	ACTIVE	-55 to 125	142.95 \| 100u	LCCC (FK) \| 20	1 \| TUBE
5962-9754301VRA	ACTIVE	-55 to 125	138.00 \| 100u	CDIP (J) \| 20	1 \| TUBE
5962-9754301VSA	ACTIVE	-55 to 125	138.00 \| 100u	CFP (W) \| 20	1 \| TUBE

SN54LVCH245A-SP 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
CMOS 非缓冲反向器在振荡器电路中的使用	PDF	951
选择正确的电平转换解决方案 (Rev. A)	PDF	635
How to Select Little Logic	PDF	959
Shelf-Life Evaluation of Lead-Free Component Finishes	PDF	1310
Understanding and Interpreting Standard-Logic Data Sheets	PDF	857
Texas Instruments Little Logic Application Report	PDF	359
TI IBIS File Creation, Validation, and Distribution Processes	PDF	380
16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA	PDF	895
Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices	PDF	209
Implications of Slow or Floating CMOS Inputs	PDF	101
Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices	PDF	115
Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs	PDF	105
CMOS Power Consumption and CPD Calculation	PDF	89
LVC Characterization Information	PDF	114
Live Insertion	PDF	150
Input and Output Characteristics of Digital Integrated Circuits	PDF	1708
Understanding Advanced Bus-Interface Products Design Guide	PDF	253

SN54LVCH245A-SP 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
5962-9754301V2A	TBD	POST-PLATE	N/A for Pkg Type	5962-9754301V2A	5962-9754301V2A
5962-9754301VRA	TBD	A42	N/A for Pkg Type	5962-9754301VRA	5962-9754301VRA
5962-9754301VSA	TBD	Call TI	N/A for Pkg Type	5962-9754301VSA	5962-9754301VSA

SN54LVCH245A-SP 应用技术支持与电子电路设计开发资源下载

SN54LVCH245A-SP 数据资料 dataSheet 下载.PDF
TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
(用户指南)LOGIC Pocket Data Book
(用户指南)Signal Switch Data Book
(用户指南)LVC and LV Low-Voltage CMOS Logic Data Book
(选择指南)逻辑器件指南 2009 (Rev. Z)
(选择指南)小尺寸逻辑器件指南 (Rev. D)
2008年第一季度通信基础设施方案指南 (Rev. G)
Communications Infrastructure Solutions Guide 1Q2010
Design Summary for WCSP Little Logic
Standard Linear & Logic for PCs, Servers & Motherboards
STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS
Military Low Voltage Solutions
Low-Voltage Logic (LVC) Designer's Guide
Logic Cross-Reference