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74AHC244BQ 数据表(PDF) 3 Page - NXP Semiconductors |
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74AHC244BQ 数据表(HTML) 3 Page - NXP Semiconductors |
3 / 16 page 74AHC_AHCT244_5 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 05 — 20 December 2007 3 of 16 NXP Semiconductors 74AHC244; 74AHCT244 Octal buffer/line driver; 3-state 5. Pinning information 5.1 Pinning 5.2 Pin description (1) The die substrate is attached to this pad using conductive die attach material. It can not be used as a supply pin or input. Fig 4. Pin configuration SO20, TSSOP20 Fig 5. Pin configuration DHVQFN20 74AHC244 74AHCT244 1OE VCC 1A0 2OE 2Y0 1Y0 1A1 2A0 2Y1 1Y1 1A2 2A1 2Y2 1Y2 1A3 2A2 2Y3 1Y3 GND 2A3 001aae258 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19 001aah079 74AHC244 74AHCT244 Transparent top view 1Y3 GND(1) 1A3 2Y3 2A2 2Y2 1Y2 1A2 2A1 2Y1 1Y1 1A1 2A0 2Y0 1Y0 1A0 2OE 9 12 8 13 7 14 6 15 5 16 4 17 3 18 2 19 terminal 1 index area Table 2. Pin description Symbol Pin Description 1OE 1 output enable input (active LOW) 1A[0:3] 2, 4, 6, 8 data input 2A[0:3] 17, 15, 13, 11 data input 1Y[0:3] 18, 16, 14, 12 data output 2Y[0:3] 3, 5, 7, 9 data output GND 10 ground (0 V) 2OE 19 output enable input (active LOW) VCC 20 supply voltage |
类似零件编号 - 74AHC244BQ |
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类似说明 - 74AHC244BQ |
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