数据搜索系统,热门电子元器件搜索 |
|
SN74ALVTH16601 数据表(PDF) 2 Page - Texas Instruments |
|
|
SN74ALVTH16601 数据表(HTML) 2 Page - Texas Instruments |
2 / 12 page SN54ALVTH16601, SN74ALVTH16601 2.5-V/3.3-V 18-BIT UNIVERSAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES143A – SEPTEMBER 1998 – REVISED JULY 1999 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. The clock can be controlled by the clock-enable (CLKENAB and CLKENBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. Output enable OEAB is active low. When OEAB is low, the outputs are active. When OEAB is high, the outputs are in the high-impedance state. Data flow for B to A is similar to that of A to B, but uses OEBA, LEBA, CLKBA, and CLKENBA. This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. When VCC is between 0 and 1.2 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.2 V, 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. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. The SN54ALVTH16601 is characterized for operation over the full military temperature range of –55 °C to 125 °C. The SN74ALVTH16601 is characterized for operation from –40°C to 85°C. FUNCTION TABLE† INPUTS OUTPUT CLKENAB OEAB LEAB CLKAB A B X H X X X Z X LH X L L X LH X H H H LL X X B0‡ H LL X X B0‡ L LL ↑ LL L LL ↑ HH L L L L or H X B0‡ † A-to-B data flow is shown: B-to-A flow is similar but uses OEBA, LEBA, CLKBA, and CLKENBA. ‡ Output level before the indicated steady-state input conditions were established |
类似零件编号 - SN74ALVTH16601 |
|
类似说明 - SN74ALVTH16601 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 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 |