CD4020B, CD4024B, and CD4040B 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.

The CD4020B and CD4040B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). The CD4040B type also is supplied in 16-lead small-outline packages (M and M96 suffixes).

The CD4024B types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).

• Medium-speed operation
• Fully static operation
• Buffered inputs and outputs
• 100% tested for quiescent current at 20 V
• Standardized, symmetrical output characteristics
• Fully static operation
• Common reset
• 5-V, 10-V, and 15-V parametric ratings
• Maximum input current of 1 A at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
• Noise margin (over full package-temperature range): 1 V at VDD = 5 V 2 V at VDD = 10 V 2.5 V at VDD = 15 V
• 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

CD4020B - 14 Stage CD4024B - 7 Stage CD4040B - 12 Stage

• Function
• Counter
• Bits (#)
• 12
• Technology Family
• CD4000
• Supply voltage (Min) (V)
• 3
• Supply voltage (Max) (V)
• 18
• Input type
• Standard CMOS
• Output type
• Push-Pull
• Features
• Balanced outputs, Standard speed (tpd > 50ns), Positive input clamp diode

CD4040B的完整型号有：CD4040BE、CD4040BM、CD4040BM96、CD4040BNSR、CD4040BPW、CD4040BPWR，以下是这些产品的关键参数及官网采购报价：

CD4040BE，工作温度：-55 to 125，封装：PDIP (N)-16，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BE的批量USD价格：0.115（1000+）

CD4040BM，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BM的批量USD价格：0.3（1000+）

CD4040BM96，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BM96的批量USD价格：0.126（1000+）

CD4040BNSR，工作温度：-55 to 125，封装：SO (NS)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BNSR的批量USD价格：0.11（1000+）

CD4040BPW，工作温度：-55 to 125，封装：TSSOP (PW)-16，包装数量MPQ：90个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BPW的批量USD价格：0.3（1000+）

CD4040BPWR，工作温度：-55 to 125，封装：TSSOP (PW)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD4040BPWR的批量USD价格：0.139（1000+）

14-24-LOGIC-EVM 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。