Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Switch FET bus switch Single supply SSOP 48

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SCDS139 − OCTOBER 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D Member of the Texas Instruments

Widebus Family

D Undershoot Protection for Off-Isolation on

A and B Ports Up to −2 V

D Bidirectional Data Flow, With Near-Zero

Propagation Delay

D Low ON-State Resistance (r

)

Characteristics (r

= 3 Ω Typical)

D Low Input/Output Capacitance Minimizes

Loading and Signal Distortion

io(OFF)

= 5.5 pF Typical)

D Data and Control Inputs Provide

Undershoot Clamp Diodes

D Low Power Consumption

= 3 µA Max)

D V

Operating Range From 4 V to 5.5 V

D 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)

D Control Inputs Can be Driven by TTL or

5-V/3.3-V CMOS Outputs

D I

off

Supports Partial-Power-Down Mode

Operation

D Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

D ESD Performance Tested Per JESD 22

− 2000-V Human-Body Model

(A114-B, Class II)

− 1000-V Charged-Device Model (C101)

D Supports Both Digital and Analog

Applications: PCI Interface, Memory

Interleaving, Bus Isolation, Low-Distortion

Signal Gating

description/ordering information

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

SSOP − DL

Tube SN74CBT16245CDL

CBT16245C

SSOP − DL

Tape and reel SN74CBT16245CDLR

CBT16245C

−40°C to 85°C

TSSOP − DGG

Tube SN74CBT16245CDGG

CBT16245C

−40 C to 85 C

TSSOP − DGG

Tape and reel SN74CBT16245CDGGR

CBT16245C

TVSOP − DGV Tape and reel SN74CBT16245CDGVR CY245C

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design

guidelines are available at www.ti.com/sc/package.

DGG, DGV, OR DL PACKAGE

(TOP VIEW)

1B1

1B2

GND

1B3

1B4

1B5

1B6

GND

1B7

1B8

2B1

2B2

GND

2B3

2B4

2B5

2B6

GND

2B7

2B8

1OE

1A1

1A2

GND

1A3

1A4

1A5

1A6

GND

1A7

1A8

2A1

2A2

GND

2A3

2A4

2A5

2A6

GND

2A7

2A8

2OE

NC − No internal connection

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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Widebus is a trademark of Texas Instruments.

Summary of content (13 pages)

PAGE 1
SCDS139 − OCTOBER 2003 D Member of the Texas Instruments D D D D D D D D D D D D D DGG, DGV, OR DL PACKAGE (TOP VIEW) 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 (ron) Characteristics (ron = 3 Ω Typical) Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.
PAGE 2
SCDS139 − OCTOBER 2003 description/ordering information (continued) The SN74CBT16245C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT16245C provides protection for undershoot up to −2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.
PAGE 3
SCDS139 − OCTOBER 2003 simplified schematic, each FET switch (SW) A B Undershoot Protection Circuit EN† † EN is the internal enable signal applied to the switch. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.
PAGE 4
SCDS139 − OCTOBER 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VIK Control inputs VCC = 4.5 V, VIKU Data inputs VCC = 5 V, IIN Control inputs VCC = 5.5 V, IOZ‡ VCC = 5.5 V, Ioff VCC = 0, ICC VCC = 5.5 V, IIN = −18 mA 0 mA > II ≥ −50 mA, VIN = VCC or GND, VIN = VCC or GND VO = 0 to 5.
PAGE 5
SCDS139 − OCTOBER 2003 undershoot characteristics (see Figures 1 and 2) PARAMETER TEST CONDITIONS VOUTU VCC = 5.5 V, Switch OFF, † All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. VCC Input Generator Ax VS DUT TYP† 2 VOH−0.3 VIN = VCC or GND MAX UNIT V 11 V Input (Open Socket) 100 kΩ 50 Ω MIN Bx 100 kΩ 90 % 2 ns 10 % −2 V 20 ns Output (VOUTU) POST OFFICE BOX 655303 5.
PAGE 6
SCDS139 − OCTOBER 2003 PARAMETER MEASUREMENT INFORMATION VCC Input Generator VIN 50 Ω 50 Ω VG1 TEST CIRCUIT DUT 7V Input Generator VI S1 RL VO GND 50 Ω 50 Ω VG2 CL (see Note A) RL TEST VCC S1 RL VI CL tpd(s) 5 V ± 0.5 V 4V Open Open 500 Ω 500 Ω VCC or GND VCC or GND 50 pF 50 pF tPLZ/tPZL 5 V ± 0.5 V 4V 7V 7V 500 Ω 500 Ω GND GND 50 pF 50 pF 0.3 V 0.3 V tPHZ/tPZH 5 V ± 0.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE MATERIALS INFORMATION www.ti.com 11-Aug-2009 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8.6 15.8 1.8 12.0 24.0 Q1 SN74CBT16245CDGGR TSSOP DGG 48 2000 330.0 24.4 SN74CBT16245CDGVR TVSOP DGV 48 2000 330.0 16.4 7.1 10.2 1.6 12.0 16.0 Q1 SN74CBT16245CDLR SSOP DL 48 1000 330.0 32.4 11.35 16.2 3.1 16.0 32.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 11-Aug-2009 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74CBT16245CDGGR TSSOP DGG 48 2000 346.0 346.0 41.0 SN74CBT16245CDGVR TVSOP DGV 48 2000 346.0 346.0 33.0 SN74CBT16245CDLR SSOP DL 48 1000 346.0 346.0 49.
PAGE 10
MECHANICAL DATA MTSS003D – JANUARY 1995 – REVISED JANUARY 1998 DGG (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0,27 0,17 0,50 48 0,08 M 25 6,20 6,00 8,30 7,90 0,15 NOM Gage Plane 1 0,25 24 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 48 56 64 A MAX 12,60 14,10 17,10 A MIN 12,40 13,90 16,90 DIM 4040078 / F 12/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice.
PAGE 11
MECHANICAL DATA MSSO001C – JANUARY 1995 – REVISED DECEMBER 2001 DL (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0.025 (0,635) 0.0135 (0,343) 0.008 (0,203) 48 0.005 (0,13) M 25 0.010 (0,25) 0.005 (0,13) 0.299 (7,59) 0.291 (7,39) 0.420 (10,67) 0.395 (10,03) Gage Plane 0.010 (0,25) 1 0°–ā8° 24 0.040 (1,02) A 0.020 (0,51) Seating Plane 0.110 (2,79) MAX 0.004 (0,10) 0.008 (0,20) MIN PINS ** 28 48 56 A MAX 0.380 (9,65) 0.630 (16,00) 0.730 (18,54) A MIN 0.370 (9,40) 0.
PAGE 12
MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°– 8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 13
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.