Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
de:parts:74_646 [2017/08/19 21:07] – angelegt MWanke | de:parts:74_646 [2024/09/22 00:26] (aktuell) – Externe Bearbeitung 127.0.0.1 | ||
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- | ====== 74_646 Octal Transceiver/ | + | ====== 74_646 |
- | Octal Transceiver/ | + | Octal Transceiver/ |
+ | {{ : | ||
- | {{: | + | Diese Bausteine bestehen aus Bus-Transceiverschaltungen mit 3-STATE, D-Typ Flip-Flops und Steuerschaltung, |
- | These devices | + | Eigenschaften |
- | 3-STATE, | + | |
- | for multiplexed transmission of data directly from the input | + | * Multiplexing von Echtzeit- und gespeicherten Daten |
- | bus or from the internal registers. Data on the A or B bus | + | * 74F646 |
- | will be clocked into the registers as the appropriate clock | + | * 3-STATE |
- | pin goes to a high logic level. Control G and direction pins | + | \\ |
- | are provided | + | |
- | transceiver mode, data present at the high impedance port | + | |
- | may be stored in either the A or the B register or in both. | + | |
- | The select | + | |
- | (transparent mode) data. The direction control determines | + | |
- | which bus will receive data when the enable control G is | + | |
- | Active LOW. In the isolation mode (control G HIGH), A data | + | |
- | may be stored | + | |
- | stored in the A register. | + | |
- | + | ||
- | Features | + | |
- | * Independent registers for A and B buses | + | |
- | * Multiplexed real-time and stored data | + | |
- | * 74F646 | + | |
- | * 3-STATE | + | |
===== Pinbelegung / Pinout ===== | ===== Pinbelegung / Pinout ===== | ||
[{{: | [{{: | ||
+ | <awbox clear></ | ||
====== im Amiga ====== | ====== im Amiga ====== | ||
- | |||
^Typ^Commo-Nr.^ | ^Typ^Commo-Nr.^ | ||
- | | A |-01| | | | | | | + | | A |380230-05|IC 74ALS646| | | | | |
- | | B |-01| | | | | | | + | | B |390063-01|IC TTL OCT BUS TRANSVR 74LS646| | | | | |
- | \\ | + | | |
- | ^Alternativ-Typ : | xx (lt. Commodore ? ) | | + | | D |390616-01|IC TTL 74AS646|A2620|DIP-24| | | |
+ | | E |390951-01|IC 74F646A| | | | | | ||
+ | | F |391163-01|IC TTL 74LS646 DIP PKG| | | | | | ||
+ | | G |391374-01|IC SM 74FCT646|A1000+|SO-24| | | | ||
+ | | H |391374-02|IC SM 74FCT646T, LOW SWITCH NOISE|A3400, | ||
\\ | \\ | ||
+ | |||
^Vorkommen^Anzahl^Typ^Position ^Bemerkung^ | ^Vorkommen^Anzahl^Typ^Position ^Bemerkung^ | ||
- | |Axx | | + | |A3000| |
- | |Axx | | + | |A3000-T| |
+ | |A4000| | ||
+ | |A2620| | ||
+ | |A2630| | ||
\\ | \\ | ||
- | |||
- | |||
- | \\ | ||
{{ : | {{ : | ||
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* Quelle | * Quelle | ||
* Datenblatt | * Datenblatt | ||
- | * {{: | + | * {{: |
- | * {{: | + | * {{: |
- | * {{: | + | * {{: |
- | * {{: | + | * {{: |
+ | * {{: | ||
---- | ---- | ||
* interne Links: [[de: | * interne Links: [[de: | ||