SN74CBT16214C系列介绍资料

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SN74CBT16214C

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具有 –2V 下冲保护功能的 5V、3:1、12 通道通用模拟多路复用器

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The SN74CBT16214C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (r_on), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16214C provides protection for undershoot up to –2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.

The SN74CBT16214C is a 12-bit 1-of-3 multiplexer/demultiplexer. The select (S0, S1, S2) inputs control the data path of each multiplexer/demultiplexer. When the multiplexer/demultiplexer is enabled, the A port is connected to the B port, allowing bidirectional data flow between ports. When the multiplexer/demultiplexer is disabled, a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using I_off. The I_off feature ensures that damaging current will not backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, each select input should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

Member of the Texas Instruments Widebus™ Family
Undershoot Protection for Off-Isolation on A and B Ports Up to –2 V
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low On-State Resistance (r_on) Characteristics (r_on = 3 Typical)
Low Input/Output Capacitance Minimizes Loading and Signal Distortion
(C_io(OFF) = 5.5 pF Typical)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption
(I_CC = 3 µA Max)
V_CC Operating Range From 4 V to 5.5 V
Data I/Os Support 0 to 5-V Signaling Leveles (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
TTL-Compatible Control Inputs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model (A114--B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog Applications: PCI Interface, USB Interface, Bus Isolation, Low-Distortion Signal Gating

Widebus is a trademark of Texas Instruments.

Configuration	3
Number of channels	12
Power supply voltage - single (V)	5
Protocols	Analog
Ron (typ) (Ω)	3
CON (typ) (pF)	18
Bandwidth (MHz)	200
Operating temperature range (°C)	-40 to 85
Features	Powered-off protection, Undershoot protection
Input/output continuous current (max) (mA)	128
Rating	Catalog
Drain supply voltage (max) (V)	5.5
Supply voltage (max) (V)	5.5

SSOP (DL)	56	190.647 mm² 18.42 x 10.35
TSSOP (DGG)	56	113.4 mm² 14 x 8.1

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SN74CBT16214C

具有 –2V 下冲保护功能的 5V、3:1、12 通道通用模拟多路复用器

4000-306-326