器件名称:
CD54HC4511
功能描述:
BCD-TO-7 SEGMENT LATCH/DECODER/DRIVERS
文件大小:
428.13KB 共17页
简 介:
CD54HC4511, CD74HC4511, CD74HCT4511 BCDTO7 SEGMENT LATCH/DECODER/DRIVERS SCHS279D DECEMBER 1998 REVISED OCTOBER 2003 D 2-V to 6-V VCC Operation (’HC4511) D 4.5-V to 5.5-V VCC Operation D D D D D D D (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 A at VOL, VOH CD54HC4511 . . . F PACKAGE CD74HC4511 . . . E, M, OR PW PACKAGE CD74HCT4511 . . . E PACKAGE (TOP VIEW) BCD Inputs BCD Inputs D1 D2 LT BL LE D3 D0 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC f g a 7-Segment b Outputs c d e DISPLAY 0 1 2 3 f e 4 a g 5 b c d 6 7 8 9 description/ordering information 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 ……
