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74CB3T3245DBQRE4 датащи(PDF) 1 Page - Texas Instruments |
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74CB3T3245DBQRE4 датащи(HTML) 1 Page - Texas Instruments |
1 / 17 page www.ti.com FEATURES DBQ, DGV, DW, OR PW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 NC A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 NC − No internal connection DESCRIPTION/ORDERING INFORMATION SN74CB3T3245 8-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE WITH 5-V-TOLERANT LEVEL SHIFTER SCDS136 – OCTOBER 2003 – REVISED MARCH 2005 • VCC Operating Range From 2.3 V to 3.6 V • Standard '245-Type Pinout • 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) • Output Voltage Translation Tracks VCC • Control Inputs Can Be Driven by TTL or • Supports Mixed-Mode Signal Operation on All 5-V/3.3-V CMOS Outputs Data I/O Ports • Ioff Supports Partial-Power-Down Mode – 5-V Input Down to 3.3-V Output Level Shift Operation With 3.3-V VCC • Latch-Up Performance Exceeds 250 mA – 5-V/3.3-V Input Down to 2.5-V Output Level Per JESD 17 Shift With 2.5-V VCC • ESD Performance Tested Per JESD 22 • 5-V-Tolerant I/Os With Device Powered Up or Powered Down – 2000-V Human-Body Model (A114-B, Class II) • Bidirectional Data Flow With Near-Zero Propagation Delay – 1000-V Charged-Device Model (C101) • Low ON-State Resistance (ron) Characteristics • Supports Digital Applications: Level (ron = 5 Ω Typ) Translation, PCI Interface, USB Interface, Memory Interleaving, Bus Isolation • Low Input/Output Capacitance Minimizes Loading (Cio(OFF) = 5 pF Typ) • Ideal for Low-Power Portable Equipment • Data and Control Inputs Provide Undershoot Clamp Diodes • Low Power Consumption (ICC = 40 µA Max) The SN74CB3T3245 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3245 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1). 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. Copyright © 2003–2005, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - 74CB3T3245DBQRE4 |
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Аналогичное описание - 74CB3T3245DBQRE4 |
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