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74LCXZ2245: DescriptionLow Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs; File Size120KB，11 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs

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74LCXZ2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26: Series

Resistors in B Outputs

October 2000

Revised March 2005

74LCXZ2245

Low Voltage Bidirectional Transceiver

with 5V Tolerant Inputs and Outputs

and 26: Series Resistors in B Outputs

General Description

The LCXZ2245 contains eight non-inverting bidirectional

buffers with 3-STATE outputs and is intended for bus ori-

ented applications. The device is designed for low voltage

(2.7V and 3.3V) V

applications with capability of interfac-

ing to a 5V signal environment. The T/R input determines

the direction of data flow through the device. The OE input

disables both the A and B ports by placing them in a high

impedance state. The 26

series resistor in the B Port out-

put helps reduce output overshoot and undershoot.

The LCXZ2245 is fabricated with an advanced CMOS

technology to achieve high speed operation while maintain-

ing CMOS low power dissipation.

When V

is between 0 and 1.5V, the LCXZ2245 is on the

high impedance state during power up or power down. This

places the outputs in the high impedance (Z) state prevent-

ing intermittent low impedance loading or glitching in bus

oriented applications.

Features

5V tolerant inputs and outputs

2.7V–3.6V V

specifications provided

7.0 ns t

max (V

3.3V), 10

A I

max

Power down high impedance inputs and outputs

Supports live insertion/withdrawal (Note 1)

12 mA output drive on the B Port (V

Latch-up performance exceeds 500 mA

Equivalent 26

series resistor on all B Port outputs

ESD performance:

3.0V)

Implements patented noise/EMI reduction circuitry

Human body model

2000V

Machine model

200V

Note 1:

To ensure the high-impedance state during power up or down, OE

should be tied to V

through a pull-up resistor: the minimum value or the

resistor is determined by the current-sourcing capability of the driver.

Ordering Code:

Order Number

74LCXZ2245WM

74LCXZ2245SJ

74LCXZ2245MSA

74LCXZ2245MTC

Package Number

M20B

M20D

MSA20

MTC20

Package Description

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Pb-Free package per JEDEC J-STD-020B.

Logic Symbol

Connection Diagram

Pin Descriptions

Pin Names

T/R

–A

–B

Description

Output Enable Input

Transmit/Receive Input

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

DS500410

www.fairchildsemi.com

74LCXZ2245 Related Products

	74LCXZ2245	74LCXZ2245_05	74LCXZ2245SJ	74LCXZ2245WM	74LCXZ2245MTC
Description	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors in B Outputs
Is it Rohs certified?	-	-	conform to	conform to	conform to
Maker	-	-	Fairchild	Fairchild	Fairchild
Parts packaging code	-	-	SOIC	SOIC	TSSOP
package instruction	-	-	SOP, SOP20,.3	SOP, SOP20,.4	4.40 MM, MO-153, TSSOP-20
Contacts	-	-	20	20	20
Reach Compliance Code	-	-	compli	unknow	unknow
Control type	-	-	COMMON CONTROL	COMMON CONTROL	COMMON CONTROL
Counting direction	-	-	BIDIRECTIONAL	BIDIRECTIONAL	BIDIRECTIONAL
series	-	-	LVC/LCX/Z	LVC/LCX/Z	LVC/LCX/Z
JESD-30 code	-	-	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20
JESD-609 code	-	-	e3	e3	e3
length	-	-	12.6 mm	12.8015 mm	6.5 mm
Logic integrated circuit type	-	-	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER
MaximumI(ol)	-	-	0.012 A	0.012 A	0.012 A
Humidity sensitivity level	-	-	1	1	1
Number of digits	-	-	8	8	8
Number of functions	-	-	1	1	1
Number of ports	-	-	2	2	2
Number of terminals	-	-	20	20	20
Maximum operating temperature	-	-	85 °C	85 °C	85 °C
Minimum operating temperature	-	-	-40 °C	-40 °C	-40 °C
Output characteristics	-	-	3-STATE WITH SERIES RESISTOR	3-STATE WITH SERIES RESISTOR	3-STATE WITH SERIES RESISTOR
Output polarity	-	-	TRUE	TRUE	TRUE
Package body material	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	-	SOP	SOP	TSSOP
Encapsulate equivalent code	-	-	SOP20,.3	SOP20,.4	TSSOP20,.25
Package shape	-	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
method of packing	-	-	RAIL	RAIL	RAIL
Peak Reflow Temperature (Celsius)	-	-	260	260	260
power supply	-	-	3.3 V	3.3 V	3.3 V
Prop。Delay @ Nom-Su	-	-	8 ns	8 ns	8 ns
propagation delay (tpd)	-	-	9 ns	9 ns	9 ns
Certification status	-	-	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	-	2.1 mm	2.642 mm	1.2 mm
Maximum supply voltage (Vsup)	-	-	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	-	-	2.7 V	2.7 V	2.7 V
Nominal supply voltage (Vsup)	-	-	3.3 V	3.3 V	3.3 V
surface mount	-	-	YES	YES	YES
technology	-	-	CMOS	CMOS	CMOS
Temperature level	-	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	-	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	-	-	GULL WING	GULL WING	GULL WING
Terminal pitch	-	-	1.27 mm	1.27 mm	0.65 mm
Terminal location	-	-	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	-	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
translate	-	-	N/A	N/A	N/A
width	-	-	5.3 mm	7.493 mm	4.4 mm

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