Electronic Components Datasheet Search |
|
74GTLPH1655DGGRE4 Datasheet(PDF) 3 Page - Texas Instruments |
|
74GTLPH1655DGGRE4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 16 page www.ti.com FUNCTIONAL DESCRIPTION (CONTINUED) SN74GTLPH1655 16-BIT LVTTL-TO-GTLP ADJUSTABLE-EDGE-RATE UNIVERSAL BUS TRANSCEIVER SCES294C – OCTOBER 1999 – REVISED MAY 2005 Data flow for each word is determined by the respective latch enables (xLEAB and xLEBA), output enables (xOEAB and xOEBA), and clock (CLK). The output enables (1OEAB, 1OEBA, 2OEAB, and 2OEBA) control byte 1 and byte 2 data for the A-to-B and B-to-A directions, respectively. Note that CLK is common to both directions and both 8-bit words. OE also is common and disables all I/O ports simultaneously. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB transitions low, the A data is latched independent of CLK high or low. If LEAB is low, the A data is registered on the CLK low-to-high transition. When OEAB is low, the outputs are active. With OEAB high, the outputs are in the high-impedance state. The data flow for the B-to-A direction is identical, except OEBA, LEBA, and CLK are used. FUNCTION TABLES XXX FUNCTION(1) INPUTS OUTPUT MODE B OEAB LEAB CLK A H X X X Z Isolation L L H X B0(2) Latched storage of A data L L L X B0(3) L H X L L True transparent L H X H H L L ↑ L L Clocked storage of A data L L ↑ H H (1) A-to-B data flow is shown. B-to-A flow is similar, but uses OEBA, LEBA, and CLK. The condition when OEAB and OEBA are both low at the same time is not recommended. (2) Output level before the indicated steady-state input conditions were established, provided that CLK was high before LEAB went low (3) Output level before the indicated steady-state input conditions were established OUTPUT ENABLE INPUTS OUTPUTS OE OEAB OEBA A PORT B PORT L L L Active Active(1) L L H Z Active L H L Active Z L H H Z Z H X X Z Z (1) This condition is not recommended. B-PORT EDGE-RATE CONTROL (ERC) INPUT ERC OUTPUT B-PORT LOGIC LEVEL NOMINAL VOLTAGE EDGE RATE H VCC Slow L GND Fast 3 |
Similar Part No. - 74GTLPH1655DGGRE4 |
|
Similar Description - 74GTLPH1655DGGRE4 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |