Zakładka z wyszukiwarką danych komponentów |
|
SN74LVCH32374AZKER Arkusz danych(PDF) 1 Page - Texas Instruments |
|
SN74LVCH32374AZKER Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 14 page 1 FEATURES DESCRIPTION/ORDERING INFORMATION SN74LVCH32374A 32-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS SCAS619E – OCTOBER 1998 – REVISED AUGUST 2007 www.ti.com 2 • Member of the Texas Instruments Widebus+™ • I off Supports Partial-Power-Down Mode Family Operation • Operates From 1.65 V to 3.6 V • Supports Mixed-Mode Signal Operation on All Ports (5-V Input and Output Voltages With • Inputs Accept Voltages to 5.5 V 3.3-V VCC) • Max t pd of 4.5 ns at 3.3 V • Bus Hold on Data Inputs Eliminates the Need • Typical V OLP (Output Ground Bounce) < 0.8 V for External Pullup/Pulldown Resistors at VCC = 3.3 V, TA = 25°C • Latch-Up Performance Exceeds 250 mA Per • Typical V OHV (Output VOH Undershoot) > 2 V JESD 17 at VCC = 3.3 V, TA = 25°C This 32-bit edge-triggered D-type flip-flop is designed for 1.65-V to 3.6-V VCC operation. The SN74LVCH32374A is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. It can be used as four 8-bit flip-flops, two 16-bit flip-flops, or one 32-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels set up at the data (D) inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. 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. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. ORDERING INFORMATION TA PACKAGE(1)(2) ORDERABLE PART NUMBER TOP-SIDE MARKING LFBGA – GKE SN74LVCH32374AGKER –40 °C to 85°C Tape and reel CH374A LFBGA – ZKE (Pb-free) SN74LVCH32374AZKER (1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. (2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. 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. 2 Widebus+ is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 1998–2007, 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. |
Podobny numer części - SN74LVCH32374AZKER |
|
Podobny opis - SN74LVCH32374AZKER |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |