The CD54HC4511, CD74HC4511, and CD74HCT4511 are BCD-to-7 segment latch/decoder/drivers with four address inputs (D0D3), an active-low blanking (BL)\ input, lamp-test (LT)\ input, and a latch-enable (LE)\ input that, when high, enables the latches to store the BCD inputs. When LE\ is low, the latches are disabled, making the outputs transparent to the BCD inputs.
●These devices have standard-size output transistors, but are capable of sourcing (at standard VOH levels) up to 7.5 mA at 4.5 V. The HC types can supply up to 10 mA at 6 V.
● 2-V to 6-V VCC Operation (HC4511)
● 4.5-V to 5.5-V VCC Operation (CD74HCT4511)
● High-Output Sourcing Capability
● 7.5 mA at 4.5 V (CD74HCT4511)
● 10 mA at 6 V (HC4511)
● Input Latches for BCD Code Storage
● Lamp Test and Blanking Capability
● Balanced Propagation Delays and Transition Times
● Significant Power Reduction Compared to LSTTL Logic ICs
● HC4511
● High Noise Immunity, NIL or NIH = 30% of VCC at VCC = 5 V
● CD74HCT4511
● Direct LSTTL Input Logic Compatibility, VIL = 0.8 V Maximum, VIH = 2 V Minimum
● CMOS Input Compatibility, II 1 µA at VOL, VOH
