SN74LVTH646-EP 具有三态输出的增强型产品 3.3V Abt 八路总线收发器和寄存器

This bus transceiver and register is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The SN74LVTH646 consists of bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the ’LVTH646.

Output-enable (OE)\ and direction-control (DIR) inputs are provided to control the transceiver functions

	SN74LVTH646-EP
Voltage Nodes (V)	3.3, 2.7
Vcc range (V)	2.7 to 3.6
Output Drive (mA)	-32/64
No. of Bits	8
Logic	True
Static Current	5
th (ns)	0.8
tpd max (ns)	4.7
tsu (ns)	1.6
Technology Family	LVT
Rating	HiRel Enhanced Product

SN74LVTH646-EP 特性

Controlled Baseline
- One Assembly/Test Site, One Fabrication Site
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree
Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
Supports Unregulated Battery Operation Down to 2.7 V
Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
Ioff and Power-Up 3-State Support Hot Insertion
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 500 mA Per JESD 17
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)

SN74LVTH646-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
SN74LVTH646IPWREP	ACTIVE	-40 to 85	0.80 \| 1ku	TSSOP (PW) \| 24	2000 \| LARGE T&R
V62/04680-01XE	ACTIVE	-40 to 85	0.80 \| 1ku	TSSOP (PW) \| 24	2000 \| LARGE T&R

SN74LVTH646-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
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

SN74LVTH646-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
SN74LVTH646IPWREP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74LVTH646IPWREP	SN74LVTH646IPWREP
V62/04680-01XE	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	V62/04680-01XE	V62/04680-01XE

SN74LVTH646-EP 应用技术支持与电子电路设计开发资源下载

SN74LVTH646-EP 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
(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)
(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
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