描述 Description

CD4020BMS, CD4024BMS, and CD4040BMS are ripple carry binary counters. All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET line resets the counter to its all zeros state. Schmitt trigger action on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered.

特性 Features

? High Voltage Types (20V Rating)

? Medium Speed Operation

? Fully Static Operation

? Buffered Inputs and Outputs

? 100 Tested for Quiescent Current at 20V

? Standardized Symmetrical Output Characteristics

? Common Reset

? 5V, 10V and 15V Parametric Ratings

? Maximum Input Current of 1μa at 18V Over Full Pack age-Temperature Range;

- 100nA at 18V and 25oC

? Noise Margin (Over Full Package Temperature Range):

- 1V at VDD = 5V

- 2V at VDD = 10V

- 2.5V at VDD = 15V

? Meets All Requirements of JEDEC Tentative Standard

? No. 13B, “Standard Specifications For Description Of ‘B’ Series CMOS Devices”

Applications

? Control Counters

? Timers

? Frequency Dividers

? Time-Delay Circuits