
Overview
The EM74HC244D is a buffers, Drivers, Receivers, Transceiver made by EnergyMath in a SOP-20L package with 20 pins. -40℃~+125℃ 2 20ns@4.5V,50pF 2V~6V 4 40uA 74HC Output enable Tri-State Unidirectional SOP-20L Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC244, from KiCad's library) and its footprint (Package_SO:SOP-20_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. 100 are in stock at JLCPCB (part C49188290).
Symbol
Footprint
Parameters
10- Channel Type
- Unidirectional
- Features
- Output enable
- Logic Family
- 74HC
- Number of Bits per Element
- 4
- Number of Elements
- 2
- Operating Temperature
- -40℃~+125℃
- Propagation Delay
- 20ns@4.5V,50pF
- Quiescent Current
- 40uA
- Voltage - Supply
- 2V~6V
- output type
- Tri-State
Order codes
1- EM74HC244DLCSC C49188290
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | 1OE | Input |
| 2 | 1A0 | Input |
| 3 | 2Y0 | Tri-state |
| 4 | 1A1 | Input |
| 5 | 2Y1 | Tri-state |
| 6 | 1A2 | Input |
| 7 | 2Y2 | Tri-state |
| 8 | 1A3 | Input |
| 9 | 2Y3 | Tri-state |
| 10 | GND | Power in |
| 11 | 2A3 | Input |
| 12 | 1Y3 | Tri-state |
| 13 | 2A2 | Input |
| 14 | 1Y2 | Tri-state |
| 15 | 2A1 | Input |
| 16 | 1Y1 | Tri-state |
| 17 | 2A0 | Input |
| 18 | 1Y0 | Tri-state |
| 19 | 2OE | Input |
| 20 | VCC | Power in |
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Is there a KiCad symbol and footprint for the EM74HC244D?
Yes. The symbol is 74xx:74HC244 and the footprint Package_SO:SOP-20_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the EM74HC244D?
SOP-20L, with 20 pins. Its footprint is drawn on this page.
Where is the EM74HC244D datasheet?
EnergyMath publishes it: the Datasheet link on this page opens it.
Where can I order the EM74HC244D?
JLCPCB lists it as part C49188290, with 100 in stock; the sellers' links on this page open their listings.
What can replace the EM74HC244D?
Parts like it in the library: the SN74HC245DTR(XBLW) by XBLW, the CJ74HC540AGN by Jiangsu Changjing Electronics Technology (CJ), the 74HC244D,653-JSM by JSMSEMI and the SN74HC240DTR(XBLW) by XBLW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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