M74HC646 High Speed CMOS Octal Bus Transceivers and Registers
High-speed CMOS octal bus transceivers with 3-state output and low power consumption.
- Supply Voltage: -0.5 to +7 V
- DC Input Voltage: -0.5 to VCC + 0.5 V
- DC Output Voltage: -0.5 to VCC + 0.5 V
- DC Input Diode Current: +20 mA
- DC Output Diode Current: +20 mA
- DC Output Source Sink Current Per Output Pin: +35 mA
- DC VCC or Ground Current: +70 mA
- Power Dissipation: 500 mW
- Storage Temperature: -65 to +150 °C
- Lead Temperature (10 sec): 300 °C
Features:
- High Speed: fMAX = 73 MHz at VCC = 5V
- Low Power Dissipation: ICC = 4 µA at TA = 25 °C
- High Noise Immunity: VNIH = VNIL = 28% VCC (MIN.)
- Output Drive Capability 15 LSTTL Loads
These devices are fabricated in silicon gate C2 MOS technology, offering high-speed performance and low power consumption. The M74HC646 consists of bus transceiver circuits with 3-state output, D-type flip-flops, and control circuitry for multiplexed data transmission. Data can be clocked into the registers on the low-to-high transition of the clock pins. Enable (G) and direction (DIR) pins control the transceiver functions, allowing for multiplexing of stored and real-time data. The direction control determines the data bus selection when enable G is active. In isolation mode, data can be stored in one or both registers. Only one bus (A or B) can be driven at a time.
When an output function is disabled, the input function remains enabled for data storage and transmission. All inputs are equipped with protection circuits for added safety.
Package Includes:
- 1 X 74HC646 IC - (SMD Package) - Octal Bus Transceiver Register IC (74646 IC)
Images are for illustration only; actual product may vary.