CD74HC4543 High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs | TI.com

CD74HC4543 (ACTIVE) High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs

High Speed CMOS Logic BCD-to-7 Segment Latch/Decoder/Driver for LCDs - CD74HC4543
Datasheet
CD74HC4543 datasheet (Rev. B)
 

Description

The CD74HC4543 high-speed silicon-gate device is a BCD to 7-segment latch/decoder/driver designed primarily for directly driving liquid-crystal displays. It has an active-high disable input (LD), an active-high blanking input (BI) and a phase input (PH) to which a square wave is applied for liquid-crystal applications. This square wave also is applied to the backplane of the liquid-crystal display.

This device also can be used, in conjunction with current amplifying devices, for driving LEDs, incandescent, fluorescent, and gas-discharge displays. For these applications the phase input provides a means to obtain active-high or active-low segment outputs. (See the Function Table.)

Features

  • Input Latches for BCD Code Storage
  • Blanking Capability
  • Phase Input for Complementing Outputs
  • Fanout (Over Temperature Range)
    • Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . -55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V

Parametrics

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Part number Order Function Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Configuration Type IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Bits (#) Digital input leakage (Max) (uA) ESD CDM (kV) ESD HBM (kV)
CD74HC4543 Order now Decoder
Demultiplexer    		 HC     2     6     1     3.3
5    		 28     0.08     68     4:7     Standard     1.3     -1.3     Catalog     -55 to 125     PDIP | 16     See datasheet (PDIP)     7     5     0.75     2