Texas Instruments SN74CBT6800CPWRG4

Manufacturer No:

SN74CBT6800CPWRG4

Manufacturer:

Texas Instruments

Package:

Description:

5-V, 1:1 (SPST), 10-channel general-purpose FET bus switch with –2-V undershoot protection

Quantity:

In Stock :5649

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SN74CBT6800CPWRG4 Information

Texas Instruments SN74CBT6800CPWRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments SN74CBT6800CPWRG4.

Type
Parameter

Configuration
1:1 SPST

Number of channels
10

Power supply voltage - single (V)
5

Protocols
Analog

Ron (typ) (Ω)
3

CON (typ) (pF)
13.5

ON-state leakage current (max) (µA)
10

Bandwidth (MHz)
200

Operating temperature range (°C)
-40 to 85

Features
Undershoot protection

Type
Parameter

Input/output continuous current (max) (mA)
128

Rating
Catalog

Drain supply voltage (max) (V)
5.5

Supply voltage (max) (V)
5.5

Package
SOIC (DW)

Pins
24

Size
159.65 mm² 15.5 x 10.3

Package
TSSOP (PW)

Pins
24

Size
49.92 mm² 7.8 x 6.4

Download datasheets and manufacturer documentation for Texas Instruments SN74CBT6800CPWRG4.

The SN74CBT6800C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT6800C 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 device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise.

The SN74CBT6800C is a 10-bit bus switch with a single output-enable (ON\) input. When ON\ is low, the 10-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When ON\ is high, the 10-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. The B port is precharged to BIASV through the equivalent of a 10-k resistor when ON\ is high, or if the device is powered down (V_CC = 0 V).

During insertion (or removal) of a card into (or from) an active bus, the card’s output voltage may be close to GND. When the connector pins make contact, the card’s parasitic capacitance tries to force the bus signal to GND, creating a possible glitch on the active bus. This glitching effect can be reduced by using a bus switch with precharged bias voltage (BIASV) of the bus switch equal to the input threshold voltage level of the receivers on the active bus. This method will ensure that any glitch produced by insertion (or removal) of the card will not cross the input threshold region of the receivers on the active bus, minimizing the effects of live-insertion noise.

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. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, ON\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking 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
B-Port Outputs Are Precharged by Bias Voltage (BIASV) to Minimize Signal Distortion During Live Insertion and Hot-Plugging
Supports PCI Hot Plug
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 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 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, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating