ZHCSQ37F December 1982 – February 2022 SN54HC4020 , SN74HC4020
PRODUCTION DATA
- 1 特性
- 2 說明
- 3 Revision History
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Parameter Measurement Information
- 7 Detailed Description
- 8 Power Supply Recommendations
- 9 Layout
- 10Device and Documentation Support
- 11Mechanical, Packaging, and Orderable Information
封裝選項
請參考 PDF 數據表獲取器件具體的封裝圖。
機械數據 (封裝 | 引腳)
- W|16
- J|16
- FK|20
散熱焊盤機械數據 (封裝 | 引腳)
訂購信息
6 Parameter Measurement Information
Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 ?, tt < 6 ns.
For clock inputs, fmax is measured when the input duty cycle is 50%.
The outputs are measured one at a time with one input transition per measurement.
(1) CL includes probe
and test-fixture capacitance.
Figure 6-1 Load Circuit for Push-Pull
Outputs
Figure 6-2 Voltage Waveforms,
Standard CMOS Inputs Pulse Duration
(1) The
greater between tPLH and tPHL is the same as
tpd.
Figure 6-4 Voltage Waveforms,
Propagation Delays for Standard CMOS Inputs
Figure 6-3 Voltage Waveforms,
Standard CMOS Inputs Setup and Hold Times
(1) The greater between
tr and tf is the same as tt.
Figure 6-5 Voltage Waveforms, Input
and Output Transition Times for Standard CMOS Inputs