OCTAL BUS TRANSCEIVERS These octal bus transceivers are designed for asynchronous two-way communication between data buses. Control function implementation minimizes external timing requirements. These circuits allow data transmission from the A bus to B or from the B bus to A bus depending upon the logic level of the direction control (DIR) input. Enable in.
XJ Ceramic SN74LSXXXN Plastic SN74LSXXXDW SOIC
CONNECTION DIAGRAMS DIP (TOP VIEW)
ENABLE VCC G B1 20 19 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 11 ENABLE VCC G B1 20 19 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 11
1 DIR
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
10 GND
1 DIR
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
10 GND
SN54 / 74LS640 SN54 / 74LS642
SN54 / 74LS641 SN54 / 74LS645
FAST AND LS TTL DATA 5-1
SN54/74LS640
• SN54/74LS645
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH Supply Voltage Operating Ambient Temperature Range Output p Current — High g Parameter 54 74 5.
SN54LS640 THRU SN54LS642, SN54LS644, SN54LS645 SN74LS640 THRU SN74LS642, SN74LS644, SN74LS645 OCTAL BUS TRANSCEIVRS SDLS.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SN54LS640 |
Motorola Inc |
OCTAL BUS TRANSCEIVERS | |
2 | SN54LS640 |
Texas Instruments |
OCTAL BUS TRANSCEIVRS | |
3 | SN54LS642 |
Motorola Inc |
OCTAL BUS TRANSCEIVERS | |
4 | SN54LS642 |
Texas Instruments |
OCTAL BUS TRANSCEIVRS | |
5 | SN54LS644 |
Texas Instruments |
OCTAL BUS TRANSCEIVRS | |
6 | SN54LS645 |
Motorola Inc |
OCTAL BUS TRANSCEIVERS | |
7 | SN54LS645 |
Texas Instruments |
OCTAL BUS TRANSCEIVRS | |
8 | SN54LS646 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS/REGISTERS | |
9 | SN54LS647 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS/REGISTERS | |
10 | SN54LS648 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS/REGISTERS | |
11 | SN54LS649 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS/REGISTERS | |
12 | SN54LS620 |
Texas Instruments |
Octal Bus Transceiver |