The M54/74HC190/191 are high speed CMOS 4-BIT SYNCHRONOUS UP/DOWN COUNTERS fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. State changes of the counter are synchronous with the LOW-to-HIGH transition of the Clock Pulse input. An asynchronous parallel load input ove.
load input overrides counting and loads the data present on the DATA inputs into the flip-flops, which makes it possible to use the circuits as programmable counters. A countenable input serves as the carry/borrow input in multi-stage counters. Control input, Down/Up, determines whether a circuit counts up or down. A MAX/MIN output and a Ripple Clock output provide overflow/underflow indication and make possible a variety of methods for generating carry/borrow signals in multistage counter applications. All inputs are equipped with protection circuits against static discharge and transient exc.
These high speed synchronous counters utilize advanced silicon-gate CMOS technology They possess the high noise immunit.
The M54HCxxx and M54HCTxxx series is composed of CMOS functions specifically designed to meet the radiation requirements.
ordering information The ’HC191 devices are 4-bit synchronous, reversible, up/down binary counters. Synchronous counting.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 54HC190 |
National Semiconductor |
Synchronous Decade Up/Down Counters | |
2 | 54HC190 |
SGS-THOMSON |
4 BIT SYNCHRONOUS UP/DOWN COUNTERS | |
3 | 54HC193 |
Texas Instruments |
4-BIT SYNCHRONOUS UP/DOWN COUNTERS | |
4 | 54HC193 |
STMicroelectronics |
Rad-hard high speed 2 to 6V CMOS logic | |
5 | 54HC10 |
STMicroelectronics |
Rad-hard high speed 2 to 6V CMOS logic | |
6 | 54HC10 |
Texas Instruments |
Triple 3-Input NAND Gates | |
7 | 54HC109 |
STMicroelectronics |
Rad-hard high speed 2 to 6V CMOS logic | |
8 | 54HC109 |
Texas Instruments |
Dual J-K Positive-Edge-Triggered Flip-Flops | |
9 | 54HC11 |
STMicroelectronics |
Rad-hard high speed 2 to 6V CMOS logic | |
10 | 54HC11 |
Texas Instruments |
Triple 3-Input AND Gate | |
11 | 54HC112 |
Texas Instruments |
Dual J-K Negative-Edge-Triggered Flip-Flops | |
12 | 54HC123 |
STMicroelectronics |
Rad-hard high speed 2 to 6V CMOS logic |