NXP Semiconductors
HEF4511B
BCD to 7-segment latch/decoder/driver
12. Application information
• Driving LED displays
• Driving incandescent displays
• Driving fluorescent displays
• Driving LCD displays
• Driving gas discharge displays
VDD
common cathode
LED
common anode
LED
VDD
≈ 1.7 V
≈ 1.7 V
VSS
001aae683
Fig 9. Connection to common cathode LED display
readout
VSS
001aae684
Fig 10. Connection to common anode LED display
readout
VDD
VDD
(1)
VDD
direct
(low brightness)
VSS
VSS
001aae685
to
filament
supply
VSS
001aae686
(1) A filament pre-warm resistor is recommended to
reduce filament thermal shock and increase the effective
cold resistance of the filament.
Fig 11. Connection to incandescent display readout
Fig 12. Connection to fluorescent display readout
HEF4511B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 11 November 2011
© NXP B.V. 2011. All rights reserved.
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