Features: 2-V to 6-V VCC Operation ±6-mA Output Drive at 5 VHigh-Current 3-State Parallel Register Low Input Current of 1 A Max Outputs Can Drive Up To 15 LSTTL Loads 8-Bit Counter With RegisterLow Power Consumption, 80-A Max ICC Counter Has Direct ClearTypical tpd = 14 nsApplicationAudi...
SN74HC590A: Features: 2-V to 6-V VCC Operation ±6-mA Output Drive at 5 VHigh-Current 3-State Parallel Register Low Input Current of 1 A Max Outputs Can Drive Up To 15 LSTTL Loads 8-Bit Counter With Regi...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

The SN74HC590A devices contain an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter of the SN74HC590A features direct clear (CCLR) and count-enable (CCKEN) inputs. A ripple-carry output (RCO) is provided for cascading. Expansion is accomplished easily for two stages by connecting RCO of the first stage to CCKEN of the second stage. Cascading for larger count chains can be accomplished by connecting RCO of each stage to the counter clock (CCLK) input of the following stage.
CCLK and the register clock (RCLK) inputs of the SN74HC590A are positive-edge triggered. If both clocks are connected together, the counter state always is one count ahead of the register. Internal circuitry prevents clocking from the clock enable.