CBTU4411EE datasheet, PDF - EEWORLD Datasheet

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CBTU4411EE: DescriptionMultiplexer Switch ICs 10BIT DDR SDRAM MUX BUS SWITCH; Categorylogic logic; File Size128KB，21 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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CBTU4411EE Overview

Multiplexer Switch ICs 10BIT DDR SDRAM MUX BUS SWITCH

CBTU4411EE Parametric

Parameter Name	Attribute value
Source Url Status Check Date	2013-06-14 00:00:00
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	NXP
Parts packaging code	BGA
package instruction	LFBGA, BGA72,11X11,20
Contacts	72
Manufacturer packaging code	SOT-856-1
Reach Compliance Code	unknown
series	CBT/FST/QS/5C/B
JESD-30 code	S-PBGA-B72
JESD-609 code	e1
length	7 mm
Logic integrated circuit type	BUS TRANSCEIVER
Humidity sensitivity level	3
Number of digits	11
Number of functions	1
Number of ports	2
Number of terminals	72
Maximum operating temperature	85 °C
Minimum operating temperature
Output characteristics	3-STATE
Output polarity	TRUE
Package body material	PLASTIC/EPOXY
encapsulated code	LFBGA
Encapsulate equivalent code	BGA72,11X11,20
Package shape	SQUARE
Package form	GRID ARRAY, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)	260
power supply	1.8 V
propagation delay (tpd)	0.1 ns
Certification status	Not Qualified
Maximum seat height	1.5 mm
Maximum supply voltage (Vsup)	1.9 V
Minimum supply voltage (Vsup)	1.7 V
Nominal supply voltage (Vsup)	1.8 V
surface mount	YES
technology	CMOS
Temperature level	OTHER
Terminal surface	Tin/Silver/Copper (Sn/Ag/Cu)
Terminal form	BALL
Terminal pitch	0.5 mm
Terminal location	BOTTOM
Maximum time at peak reflow temperature	30
width	7 mm
Base Number Matches	1

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CBTU4411

11-bit DDR2 SDRAM MUX/bus switch with 12

ON resistance

Rev. 4 — 18 June 2012

Product data sheet

1. General description

This 11-bit bus switch is designed for 1.7 V to 1.9 V V

operation and SSTL_18 select

input levels.

Each Host port pin (HPn) is multiplexed to one of four DIMM port pins (xDPn). The

selection of the DIMM port to be connected to the Host port is controlled by a decoder

driven by three hardware select pins S0, S1 and EN. Driving pin EN HIGH disconnects all

DIMM ports from their respective host ports. When EN is driven LOW, pins S0 and S1

select one of four DIMM ports to be connected to their respective host port. When

disconnected, any DIMM port is terminated to the externally supplied voltage V

bias

means of an on-chip pull-down resistor of typically 400

Ω.

The ON-state connects the

Host port to the DIMM port through a 12

nominal series resistance. The design is

intended to have only one DIMM port active at any time.

The CBTU4411 can also be configured to support a differential strobe signal on

channel 10 (TRUE) and channel 9 (complementary Strobe). When its LVCMOS

configuration input strobe enable (STREN) is HIGH, channel 10 is pulled up to

⁄

of V

internally by a resistive divider when the DIMM port is idle. When the CBTU4411 is

disabled (EN = HIGH in Strobe mode), the pull-down on channel 10 is disabled for current

savings, pulling channel 10 to V

. When strobe enable (STREN) is LOW, channel 10

behaves the same as all other channels.

The select inputs (S0, S1) are pseudo-differential type SSTL_18. A reference voltage

should be provided to input pin VREF at nominally 0.5V

. This topology provides

accurate control of switching times by reducing dependency on select signal slew rates.

S0 and S1 are provided with selectable input termination to 0.5V

(active when LVCMOS

input TERM is HIGH). When the CBTU4411 is disabled (EN = HIGH), both S0 and S1

inputs are pulled LOW.

The part incorporates a very low crosstalk design. It has a very low skew between outputs

(< 30 ps) and low skew (< 30 ps) for rising and falling edges. The part has optimal

performance in DDR2 data bus applications.

Each switch has been optimized for connection to 1- or 2-rank DIMMs.

The low internal RC time constant of the switch allows data transfer to be made with

minimal propagation delay.

The CBTU4411 is characterized for operation from 0

°C

to +85

°C.

CBTU4411EE Related Products

	CBTU4411EE	CBTU4411EE-S	CBTU4411EE-T
Description	Multiplexer Switch ICs 10BIT DDR SDRAM MUX BUS SWITCH	Multiplexer Switch ICs 10BIT DDR SDRAM MUX BUS SWITCH	Multiplexer Switch ICs 10BIT DDR SDRAM MUX BUS SWITCH
Packaging	-	Tray	Reel
Product Attribute	-	Attribute Value	Attribute Value
Manufacturer	-	NXP	NXP
Product Category	-	Multiplexer Switch ICs	Multiplexer Switch ICs
RoHS	-	Details	Details
Product	-	Multiplexers/Demultiplexers	Multiplexers/Demultiplexers
Number of Channels	-	11 Channel	11 Channel
Configuration	-	11 x 1:4	11 x 1:4
Mounting Style	-	SMD/SMT	SMD/SMT
Package / Case	-	SOT-856	SOT-856
Factory Pack Quantity	-	416	2000

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