The 74LVQ163 is a low voltage CMOS SYNCHRONOUS PRESETTABLE COUNTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and low noise 3.3V applications. It is a 4 bit binary counter with Synchronous Clear. The circuit have four fundamental modes of operation, in order of preference: synchronous res.
l modes of operation, in order of preference: synchronous reset, parallel load, count-up and hold. Four PIN CONNECTION AND IEC LOGIC SYMBOLS control inputs, Master Reset (CLEAR), Parallel Enable Input (LOAD), Count Enable Input (PE) and Count Enable Carry Input (TE), determine the mode of operation as shown in the Truth Table. A LOW signal on CLEAR overrides counting and parallel loading and allows all outputs to go LOW on the next rising edge of CLOCK. A LOW signal on LOAD overrides counting and allows information on Parallel Data Qn inputs to be loaded into the flip-flops on the next rising.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 74LVQ161 |
STMicroelectronics |
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER | |
2 | 74LVQ125 |
STMicroelectronics |
QUAD BUS BUFFERS 3-STATE | |
3 | 74LVQ125 |
Fairchild Semiconductor |
Low Voltage Quad Buffer | |
4 | 74LVQ138 |
STMicroelectronics |
3 TO 8 LINE DECODER INVERTING | |
5 | 74LVQ138 |
Fairchild Semiconductor |
Low Voltage 1-of-8 Decoder/Demultiplexer | |
6 | 74LVQ14 |
STMicroelectronics |
HEX SCHMITT INVERTER | |
7 | 74LVQ14 |
Fairchild Semiconductor |
Low Voltage Hex Inverter | |
8 | 74LVQ151 |
Fairchild Semiconductor |
Low Voltage 8-Input Multiplexer | |
9 | 74LVQ157 |
STMicroelectronics |
LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER | |
10 | 74LVQ157 |
Fairchild Semiconductor |
Low Voltage Quad 2-Input Multiplexer | |
11 | 74LVQ174 |
STMicroelectronics |
HEX D-TYPE FLIP FLOP | |
12 | 74LVQ174 |
Fairchild Semiconductor |
Low Voltage Hex D-Type Flip-Flop |