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Details, datasheet, quote on part number:SN74CBTS16211DGG
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Datasheet text preview:
SN74CBTS16211 24-BIT FET BUS SWITCH WITH SCHOTTKY DIODE CLAMPING
SCDS050B MARCH 1998 REVISED MAY 1998
D D D
5- Switch Connection Between Two Ports TTL-Compatible Input and Output Levels Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages
DGG, DGV, OR DL PACKAGE (TOP VIEW)
description
The SN74CBTS16211 provides 24 bits of high-speed TTL-compatible bus switching with Schottky diodes on the I/Os to clamp undershoot. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device can operate as a dual 12-bit bus switch or a single 24-bit bus switch. When 1OE is low, 1A is connected to 1B. When 2OE is low, 2A is connected to 2B. The SN74CBTS16211 is characterized for operation from 40°C to 85°C.
FUNCTION TABLE (each 12-bit bus switch) INPUT OE L H FUNCTION A port = B port Disconnect
NC 1A1 1A2 1A3 1A4 1A5 1A6 GND 1A7 1A8 1A9 1A10 1A11 1A12 2A1 2A2 VCC 2A3 GND 2A4 2A5 2A6 2A7 2A8 2A9 2A10 2A11 2A12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
1OE 2OE 1B1 1B2 1B3 1B4 1B5 GND 1B6 1B7 1B8 1B9 1B10 1B11 1B12 2B1 2B2 2B3 GND 2B4 2B5 2B6 2B7 2B8 2B9 2B10 2B11 2B12
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.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 1998, Texas Instruments Incorporated
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SN74CBTS16211 24-BIT FET BUS SWITCH WITH SCHOTTKY DIODE CLAMPING
SCDS050B MARCH 1998 REVISED MAY 1998
logic diagram (positive logic)
1A1 2 54 1B1
14 1A12
42 1B12
56 1OE 15 41
2A1
2B1
28 2A12
29 2B12
55 2OE
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions (see Note 3)
MIN VCC VIH VIL TA Supply voltage High-level control input voltage Low-level control input voltage Operating free-air temperature 40 4 2 0.8 85 MAX 5.5 UNIT V V V °C
NOTE 3: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN74CBTS16211 24-BIT FET BUS SWITCH WITH SCHOTTKY DIODE CLAMPING
SCDS050B MARCH 1998 REVISED MAY 1998
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK II ICC ICC Ci Cio(OFF) IIL IIH Control inputs Control inputs VCC = 4.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VI = 3 V or 0 VO = 3 V or 0, VCC = 4 V, TYP at VCC = 4 V TEST CONDITIONS II = 18 mA VI = GND VI = 5.5 V IO = 0, One input at 3.4 V, OE = VCC VI = 2.4 V, VI = 0 II = 15 mA II = 64 mA II = 30 mA VI = VCC or GND Other inputs at VCC or GND 3 5.5 14 5 5 20 7 7 MIN TYP MAX 1.2 1 150 3 2.5 UNIT V µA µA mA pF pF
ron§ VCC = 4.5 V
VI = 2.4 V, II = 15 mA 8 12 All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND. § Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lowest voltage of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER tpd¶ ten FROM (INPUT) A or B OE TO (OUTPUT) B or A A or B VCC = 4 V MIN MAX 0.35 9.3 3.3 VCC = 5 V ± 0.5 V MIN MAX 0.25 8.6 ns ns UNIT
tdis OE A or B 7.1 2.8 7.9 ns ¶ The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance).
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