CY74FCT257CTSOCT

CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 D Function, Pinout, and Drive Compatible D D D D D D D D Q OR SO PACKAGE (TOP VIEW) With FCT and F Logic Reduced VOH (Typically = 3.3 V) Version of Equivalent FCT Functions Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics Ioff Supports Partial-Power-Down Mode Operation Matched Rise and Fall Times Fully Compatible With TTL Input and Output Logic Levels ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) 64-mA Output Sink Current 32-mA Output Source Current 3-State Outputs S I0a I1a Ya I0b I1b Yb GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC OE I0c I1c Yc I0d I1d Yd description The CY74FCT257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high. Data at the output is noninverted. The CY74FCT257T is a logic implementation of a four-pole, two-position switch, where the position of the switch is determined by the logic levels at S. Outputs are in the high-impedance state when the output-enable (OE) input is high. All but one device must be in the high-impedance state to avoid currents exceeding the maximum ratings if outputs are tied together. OE inputs must ensure that there is no overlap when outputs of 3-state devices are tied together. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. PIN DESCRIPTION NAME DESCRIPTION I Data inputs S Common data-select input OE Y Output-enable input (active low) Data outputs 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. Copyright © 2001, Texas Instruments Incorporated 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 ORDERING INFORMATION QSOP − Q −40°C to 85°C † SPEED (ns) PACKAGE† TA ORDERABLE PART NUMBER TOP-SIDE MARKING Tape and reel 4.3 CY74FCT257CTQCT Tube 4.3 CY74FCT257CTSOC Tape and reel 4.3 CY74FCT257CTSOCT QSOP − Q Tape and reel 5 CY74FCT257ATQCT FT257-1 QSOP − Q Tape and reel 6 CY74FCT257TQCT FT257 SOIC − SO FT257-3 FCT257C Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS OE S I0 I1 OUTPUT Y H X X X Z L H X L L L H X H H L L L X L L L H X H H = High logic level, L = Low logic level, X = Don’t care, Z = High-impedance state logic diagram OE S I0a I1a I0b I1b I0c I1c I0d I1d 2 15 1 2 4 Ya 3 5 7 Yb 6 14 12 Yc 13 11 9 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Yd CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range to ground potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V DC input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V DC output voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V DC output current (maximum sink current/pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mA Package thermal impedance, θJA (see Note 1): Q package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°C/W SO package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57°C/W Ambient temperature range with power applied, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 135°C 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. NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 2) MIN NOM MAX UNIT 4.75 5 5.25 V VCC Supply voltage VIH High-level input voltage VIL Low-level input voltage 0.8 V IOH High-level output current −32 mA IOL Low-level output current 64 mA TA Operating free-air temperature 85 °C 2 −40 V NOTE 2: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT −0.7 −1.2 V 0.3 0.55 VIK VCC = 4.75, IIN = −18 mA VOH VCC = 4.75, IOH = −32 mA VOL VCC = 4.75, IOL = 64 mA Vhys All inputs II VCC = 5.25 V, VIN = 5.25 V 5 μA IIH VCC = 5.25 V, VIN = 2.7 V ±1 μA IIL VCC = 5.25 V, VIN = 0.5 V ±1 μA IOZH VCC = 5.25 V, VOUT = 2.7 V 10 μA IOZL VCC = 5.25 V, VOUT = 0.5 V −10 μA ‡ −225 mA ±1 μA 0.1 0.2 mA 0.5 2 mA 0.06 0.12 mA/ MHz 0.7 1.4 1 2.4 VIN ≤ 0.2 V or VIN ≥ VCC − 0.2 V 0.7 1.4|| VIN = 3.4 V or GND 1.7 5.4|| Ci 5 10 pF Co 9 12 pF IOS 2 0.2 VCC = 5.25 V, VOUT = 0 V Ioff VCC = 0 V, VOUT = 4.5 V ICC VCC = 5.25 V, VIN ≤ 0.2 V, ΔICC VCC = 5.25 V, VIN = 3.4 V§, f1 = 0, Outputs open ICCD¶ VCC = 5.25 V, One input switching at 50% duty cycle, Outputs open, OE = GND, VIN ≤ 0.2 V or VIN ≥ VCC − 0.2 V IC# VCC = 5.25 V, Outputs open, open OE = GND V −60 VIN ≥ VCC − 0.2 V One input switching at f1 = 10 MHz at 50% duty cycle Four bits switching at f1 = 2.5 MHz at 50% duty cycle VIN ≤ 0.2 V or VIN ≥ VCC − 0.2 V VIN = 3.4 V or GND † −120 V V mA Typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample-and-hold techniques are preferable to minimize internal chip heating and more accurately reflect operational values. Otherwise, prolonged shorting of a high output can raise the chip temperature well above normal and cause invalid readings in other parametric tests. In any sequence of parameter tests, IOS tests should be performed last. § Per TTL-driven input (V = 3.4 V); all other inputs at V IN CC or GND ¶ This parameter is derived for use in total power-supply calculations. #I = ICC + ΔICC × DH × NT + ICCD(f0/2 + f1 × N1) C Where: IC = Total supply current ICC = Power-supply current with CMOS input levels ΔICC = Power-supply current for a TTL high input (VIN = 3.4 V) DH = Duty cycle for TTL inputs high NT = Number of TTL inputs at DH ICCD = Dynamic current caused by an input transition pair (HLH or LHL) f0 = Clock frequency for registered devices, otherwise zero f1 = Input signal frequency N1 = Number of inputs changing at f1 All currents are in milliamperes and all frequencies are in megahertz. || Values for these conditions are examples of the I CC formula. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 switching characteristics over operating free-air temperature range (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) I Y S Y OE Y OE Y POST OFFICE BOX 655303 CY74FCT257T CY74FCT257AT CY74FCT257CT MIN MAX MIN MAX MIN MAX 1.5 6 1.5 5 1.5 4.3 1.5 6 1.5 5 1.5 4.3 1.5 10.5 1.5 7 1.5 5.2 1.5 10.5 1.5 7 1.5 5.2 1.5 8.5 1.5 7 1.5 6 1.5 8.5 1.5 7 1.5 6 1.5 6 1.5 5.5 1.5 5 1.5 6 1.5 5.5 1.5 5 • DALLAS, TEXAS 75265 UNIT ns ns ns ns 5 CY74FCT257T QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS SCCS019D − MAY 1994 − REVISED NOVEMBER 2001 PARAMETER MEASUREMENT INFORMATION 7V From Output Under Test CL = 50 pF (see Note A) 500 Ω From Output Under Test Test Point Open TEST GND CL = 50 pF (see Note A) 500 Ω S1 S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH 500 Ω Open 7V Open LOAD CIRCUIT FOR 3-STATE OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS 3V 1.5 V Timing Input 0V tw tsu 3V 1.5 V Input 1.5 V th 3V 1.5 V Data Input 1.5 V 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V 1.5 V Input 1.5 V 0V tPLH tPHL 1.5 V 1.5 V VOL tPHL Out-of-Phase Output tPLZ ≈3.5 V 1.5 V tPZH VOH 1.5 V VOL 1.5 V 0V Output Waveform 1 (see Note B) tPLH 1.5 V 1.5 V tPZL VOH In-Phase Output 3V Output Control Output Waveform 2 (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOL + 0.3 V VOL tPHZ 1.5 V VOH − 0.3 V VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) CY74FCT257ATD ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 FCT257AT CY74FCT257ATQCT ACTIVE SSOP DBQ 16 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 FT257-1 CY74FCT257CTSOC ACTIVE SOIC DW 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 FCT257C CY74FCT257TQCT ACTIVE SSOP DBQ 16 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 FT257 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of