SN74CB3T3125 具有 5V 容限电平转换器的 3.3V 低电压四路 FET 总线开关

The SN74CB3T3125 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3125 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).

The SN74CB3T3125 is organized as four 1-bit bus switches with separate output-enable (1OE\, 2OE\, 3OE\, 4OE\) inputs. It can be used as four 1-bit bus switches or as one 4-bit bus switch. When OE\ is low, the associated 1-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports

	SN74CB3T3125
ron(max)(ohms)	8
tpd max(ns)	0.25
Pin/Package	14TSSOP, 14TVSOP, 14VQFN
Technology Family	CB3T
Operating Temperature Range(°C)	-40 to 85
Approx. Price (US$)	1.25 | 1ku

SN74CB3T3125 特性

• Output Voltage Translation Tracks VCC
• Supports Mixed-Mode Signal Operation On All Data I/O Ports
  • 5-V Input Down To 3.3-V Output Level Shift With 3.3-V VCC
  • 5-V/3.3-V Input Down To 2.5-V Output Level Shift With 2.5-V VCC
• 5-V Tolerant I/Os With Device Powered-Up or Powered-Down
• Bidirectional Data Flow, With Near-Zero Propagation Delay
• Low ON-State Resistance (ron) Characteristics (ron = 5 Typical)
• Low Input/Output Capacitance Minimizes Loading (Cio(OFF) = 4.5 pF Typical)
• Data and Control Inputs Provide Undershoot Clamp Diodes
• Low Power Consumption (ICC = 20 uA Max)
• VCC Operating Range From 2.3 V to 3.6 V
• Data I/Os Support 0 to 5-V Signaling Levels (0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
• Control Inputs Can be Driven by TTL or 5-V/3.3-V CMOS Outputs
• Ioff Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 250 mA Per JESD 17
• ESD Performance Tested Per JESD 22
  • 2000-V Human-Body Model (A114-B, Class II)
  • 1000-V Charged-Device Model (C101)
• Supports Digital Applications: Level Translation, USB Interface, Bus Isolation
• Ideal for Low-Power Portable Equipment

SN74CB3T3125 芯片订购指南

器件	状态	温度	价格	封装 | 引脚	封装数量 | 封装载体	丝印标记
74CB3T3125DGVRE4	ACTIVE	-40 to 85	1.25 | 1ku	TVSOP (DGV) | 14	2000
74CB3T3125DGVRG4	ACTIVE	-40 to 85	1.25 | 1ku	TVSOP (DGV) | 14	2000
74CB3T3125RGYRG4	ACTIVE	-40 to 85	1.35 | 1ku	VQFN (RGY) | 14	3000
SN74CB3T3125DGVR	ACTIVE	-40 to 85	1.25 | 1ku	TVSOP (DGV) | 14	2000
SN74CB3T3125PW	ACTIVE	-40 to 85	1.45 | 1ku	TSSOP (PW) | 14	90
SN74CB3T3125PWE4	ACTIVE	-40 to 85	1.45 | 1ku	TSSOP (PW) | 14	90
SN74CB3T3125PWG4	ACTIVE	-40 to 85	1.45 | 1ku	TSSOP (PW) | 14	90
SN74CB3T3125PWR	ACTIVE	-40 to 85	1.25 | 1ku	TSSOP (PW) | 14	2000
SN74CB3T3125PWRE4	ACTIVE	-40 to 85	1.25 | 1ku	TSSOP (PW) | 14	2000
SN74CB3T3125PWRG4	ACTIVE	-40 to 85	1.25 | 1ku	TSSOP (PW) | 14	2000
SN74CB3T3125RGYR	ACTIVE	-40 to 85	1.35 | 1ku	VQFN (RGY) | 14	3000

SN74CB3T3125 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
74CB3T3125DGVRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	74CB3T3125DGVRE4	74CB3T3125DGVRE4
74CB3T3125DGVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	74CB3T3125DGVRG4	74CB3T3125DGVRG4
74CB3T3125RGYRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	74CB3T3125RGYRG4	74CB3T3125RGYRG4
SN74CB3T3125DGVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125DGVR	SN74CB3T3125DGVR
SN74CB3T3125PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PW	SN74CB3T3125PW
SN74CB3T3125PWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PWE4	SN74CB3T3125PWE4
SN74CB3T3125PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PWG4	SN74CB3T3125PWG4
SN74CB3T3125PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PWR	SN74CB3T3125PWR
SN74CB3T3125PWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PWRE4	SN74CB3T3125PWRE4
SN74CB3T3125PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	SN74CB3T3125PWRG4	SN74CB3T3125PWRG4
SN74CB3T3125RGYR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	SN74CB3T3125RGYR	SN74CB3T3125RGYR

SN74CB3T3125 应用技术支持与电子电路设计开发资源下载

1. SN74CB3T3125 数据资料 dataSheet 下载.PDF
2. TI 德州仪器信号开关产品选型与价格 . xls
3. Logic Guide 2009 (PDF 4263 KB)
4. 防止模拟开关的额外功耗 (PDF 392 KB) (PDF 1305 KB)
5. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
6. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
7. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
8. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
9. Designing With Logic (PDF 186 KB)
10. Live Insertion (PDF 150 KB)
11. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
12. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
13. HiRel Unitrode Power Management Brochure (PDF 206 KB)
14. LOGIC Pocket Data Book (PDF 6001 KB)
15. HiRel Unitrode Power Management Brochure (PDF 206 KB)
16. Logic Cross-Reference (PDF 2938 KB)