SN74CB3T3306系列介绍资料

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SN74CB3T3306

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具有电平转换器的 3.3V、1:1 (SPST)、2 通道 FET 总线开关

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The SN74CB3T3306 device is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), 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 V_CC. The SN74CB3T3306 device supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

Output Voltage Translation Tracks V_CC
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 V_CC
- 5-V/3.3-V Input Down to 2.5-V Output Level Shift
  With 2.5-V V_CC
5-V Tolerant I/Os With Device Powered Up or
Powered Down
Bidirectional Data Flow With Near-Zero
Propagation Delay
Low ON-State Resistance (r_on) Characteristics (r_on=
5 Ω Typical)
Low Input/Output Capacitance Minimizes Loading
(C_io(OFF) = 4.5 pF Typical)
Data and Control Inputs Provide Undershoot
Clamp Diodes
Low Power Consumption (I_CC = 20 µA Maximum)
V_CC 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
I_off 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

Configuration	1
Number of channels	2
Power supply voltage - single (V)	2.5, 3.3
Protocols	Analog, I2C, UART
Ron (typ) (Ω)	5
CON (typ) (pF)	4
ON-state leakage current (max) (µA)	20
Bandwidth (MHz)	100
Operating temperature range (°C)	-40 to 85
Features	Powered-off protection, Signal path translation
Input/output continuous current (max) (mA)	128
Rating	Catalog
Drain supply voltage (max) (V)	3.6
Supply voltage (max) (V)	3.6

SSOP (DCT)	8	11.8 mm² 2.95 x 4
VSSOP (DCU)	8	6.2 mm² 2 x 3.1

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SN74CB3T3306

具有电平转换器的 3.3V、1:1 (SPST)、2 通道 FET 总线开关

4000-306-326