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SL74HC123 Dual Retriggerable Monostable Multivibrator The SL74HC123 is identical in pinout to the LS/ALS123. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. There are two trigger inputs, A INPUT (negative edge) and B INPUT (positive edge). These inputs are valid for rising/falli.
5° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE PIN 16 =VCC PIN 8 = GND Note (1) CX, RX, DX are external components. (2) DX is a clamping diode. The external capacitor is charged to V CC in the stand-by state, i.e. no trigger. When the supply voltage is turned off CX is discharged mainly through an internal parasitic diode. If CX is sufficiently large and VCC decreases rapidy, there will be some possibility of damaging the I.C. with a surge current or latch-up. If the voltage supply filter capacitor is large enough and VCC decrease slowly, the surge current is autom.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SL74HC125 |
System Logic Semiconductor |
Quad 3-State Noninverting Buffers |
|
| 2 | SL74HC10 |
System Logic Semiconductor |
Triple 3-Input NAND Gate |
|
| 3 | SL74HC109 |
System Logic Semiconductor |
Dual J-K Flip-Flop with Set and Reset |
|
| 4 | SL74HC11 |
System Logic Semiconductor |
Triple 3-Input AND Gate |
|
| 5 | SL74HC112 |
System Logic Semiconductor |
Dual J-K Flip-Flop with Set and Reset |
|
| 6 | SL74HC132 |
System Logic Semiconductor |
Quad 2-Input NAND Gate |
|
| 7 | SL74HC138 |
System Logic Semiconductor |
1-of-8 Decoder/Demultiplexer |
|
| 8 | SL74HC139 |
System Logic Semiconductor |
Dual 1-of-4 Decoder/Demultiplexer |
|
| 9 | SL74HC14 |
System Logic Semiconductor |
Hex Schmitt-Trigger Inverter |
|
| 10 | SL74HC151 |
System Logic Semiconductor |
8-Input Data Selector/Multiplexer |
|
| 11 | SL74HC153 |
System Logic Semiconductor |
Dual 4-Input Data Selector/Multiplexer |
|
| 12 | SL74HC154 |
System Logic Semiconductor |
1- of-16 Decoder/Demultiplexer |
|