Decade Up/Down Counter with Clear IC - 74HC192

Decade Up/Down Counter with Clear IC - 74HC192

Decade Up/Down Counter with Clear IC - 74HC192

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  • Synchronous Counting and Asynchronous Loading
  • Two Outputs for N-Bit Cascading
  • Look-Ahead Carry for High-Speed Counting
  • 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

Decade Up/Down Counter with Clear IC - 74HC192

The 74HC192 is asynchronously presettable BCD Decade and Binary Up/Down synchronous counters, respectively. Presetting the counter to the number on the preset data inputs (P0-P3) is accomplished by a LOW asynchronous parallel load input (PL)\. The counter is incremented on the low-to-high transition of the Clock-Up input (and a high level on the Clock-Down input) and decremented on the low-to-high transition of the Clock-Down input (and a high level on the Clock-up input). 

A high level on the MR input overrides any other input to clear the counter to its zero states. The Terminal Count up (carry) goes low half a clock period before the zero counts are reached and returns to a high level at the zero counts. The Terminal Count Down (borrow) in the count down mode likewise goes low half a clock period before the maximum count (9 in the 192 ) and returns to high at the maximum count. Cascading is effected by connecting the carry and borrow outputs of a less significant counter to the Clock-Up and CLock-Down inputs, respectively, of the next most significant counter.

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Selected qty of IC - 74HC192

Specifications:

Part Number CD74HC192
Technology Family HC
VCC (Min) (V) 2
VCC (Max) (V) 6
Bits (#) 4
Voltage (Nom) (V) 3.3, 5
F @ nom voltage (Max) (MHz) 28
ICC @ nom voltage (Max)(mA) 0.08
tpd @ nom Voltage (Max) (ns) 46
IOL (Max) (mA) 5.2
IOH (Max) (mA) -5.2
Function Counter
Type Decade
Operating Temperature ©  -55 to 125

ADDITIONAL RESOURCES