HD74HC298 Datasheet PDF - Hitachi Semiconductor
| Part Number | HD74HC298 | |
| Description | Quad. 2-input Multiplexers (with storage) | |
| Manufacturers | Hitachi Semiconductor | |
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HD74HC298
Quad. 2-input Multiplexers (with storage)
Description
This circuit is controlled by the signals word select and clock. When the word select input is taken low
word 1 (A1, B1, C1 and D1) is presented to the inputs of the flip-flops, and when word select is high word 2
(A2, B2, C2 and D2) is presented to the inputs of the flip-flops. The selected word is clocked to the output
terminals on the negative edge of the clock pulse.
Features
• High Speed Operation: tpd (Clock to Q) = 19 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max
Function Table
Inputs
Outputs
Word Select Clock
QA
QB
QC
QD
L a1 b1 c1 d1
H a2 b2 c2 d2
XH
QA0
QB0
QC0
QD0
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19.20
20.00 Max
16
9
1
1.3
1.11 Max
8
Unit: mm
7.62
2.54 ± 0.25
0.48 ± 0.10
0.25
+
–
0.13
0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-16
Conforms
Conforms
1.07 g
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HD74HC298 electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HD74HC298.PDF Datasheet ] | |
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