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CD74HC194 数据表(PDF) 5 Page - Texas Instruments |
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CD74HC194 数据表(HTML) 5 Page - Texas Instruments |
5 / 8 page 5 Prerequisite For Switching Function PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN MAX MIN MAX MIN MAX HC TYPES Max. Clock Frequency (Figure 1) fMAX - 2 6-5-4- MHz 4.5 30 - 24 - 20 - MHz 6 35 - 28 - 23 - MHz MR Pulse Width (Figure 2) tW - 2 80 - 100 - 120 - ns 4.5 16 - 20 - 24 - ns 6 14-17 -20- ns Clock Pulse Width (Figure 1) tW - 2 80 - 100 - 120 - ns 4.5 16 - 20 - 24 - ns 6 14-17 -20- ns Set-up Time Data to Clock (Figure 3) tSU - 2 70 - 90 - 105 - ns 4.5 14 - 18 - 21 - ns 6 12-15 -19- ns Removal Time, MR to Clock (Figure 2) tREM - 2 60 - 75 - 90 - ns 4.5 12 - 15 - 18 - ns 6 10-13 -15- ns Set-Up Time S1, S0 to Clock (Figure 4) tSU - 2 80 - 100 - 120 - ns 4.5 16 - 20 - 24 - ns 6 14-17 -20- ns Set-up Time DSL, DSR to Clock (Figure 4) tSU - 2 70 - 90 - 105 - ns 4.5 14 - 18 - 21 - ns 6 12-15 -18- ns Hold Time S1, S0 to Clock (Figure 4 tH - 2 0-0-0- ns 4.5 0-0-0- ns 6 0 -0-0- ns Hold Time Data to Clock (Figure 3) tH - 2 0-0-0- ns 4.5 0-0-0- ns 6 0 -0-0- ns HCT TYPES Max. Clock Frequency (Figure 1) fMAX - 4.5 27 - 22 - 18 - MHz MR Pulse Width (Figure 2) tW - 4.5 16 - 20 - 24 - ns Clock Pulse Width (Figure 1) tW - 4.5 16 - 20 - 24 - ns Set-up Time, Data to Clock (Figure 3) tSU - 4.5 14 - 18 - 21 - ns Removal Time MR to Clock (Figure 2) tREM - 4.5 12 - 15 - 18 - ns CD74HC194, CD74HCT194 |
类似零件编号 - CD74HC194 |
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类似说明 - CD74HC194 |
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