HD74LS245
HD74LS245
Octal Bus Transceivers(with three-state outputs)
產品詳情
This octal bus transceiver is designed for synchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction control (DIR) input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.
Ordering Information
|
Part Name |
Package Type |
Package Code (Previous Code) |
Package Abbreviation |
Taping Abbreviation (Quantity) |
|
HD74LS245P |
DILP-20 pin |
PRDP0020AC-B (DP-20NEV) |
P |
— |
|
HD74LS245FPEL |
SOP-20 pin (JEITA) |
PRSP0020DD-B (FP-20DAV) |
FP |
EL (2,000 pcs/reel) |
|
HD74LS245RPEL |
SOP-20 pin (JEDEC) |
PRSP0020DC-A (FP-20DBV) |
RP |
EL (1,000 pcs/reel) |
Pin Arrangement
Function Table
|
Enable G |
Direction Control DIR |
Operation |
|
L |
L |
B data to A bus |
|
L |
H |
A data to B bus |
|
H |
X |
Isolation |
Absolute Maximum Ratings
|
Item |
Symbol |
Ratings |
Unit | |
|
Supply voltage |
VCC |
7 |
V | |
|
Input voltage |
DIR, G |
VIN |
7 |
V |
|
A, B |
VIN |
5.5 |
V | |
|
Power dissipation |
PT |
400 |
mW | |
|
Storage temperature |
Tstg |
–65 to +150 |
°C | |
|
Operating temperature |
Topr |
–20 to +75 |
°C | |
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