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74VHCT138A bảng dữ liệu(PDF) 1 Page - Fairchild Semiconductor |
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74VHCT138A bảng dữ liệu(HTML) 1 Page - Fairchild Semiconductor |
1 / 9 page tm May 2007 ©1993 Fairchild Semiconductor Corporation www.fairchildsemi.com 74VHCT138A Rev. 1.2 74VHCT138A 3-to-8 Decoder/Demultiplexer Features ■ High Speed: tPD = 7.6ns (Typ.) at VCC = 5V ■ Low power dissipation: ICC = 4µA (Max.) at TA = 25°C ■ Power down protection is provided on all inputs and outputs ■ Pin and function compatible with 74HCT138 General Description The VHCT138A is an advanced high speed CMOS 3-to-8 DECODER fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. When the device is enabled, 3 Binary Select inputs (A0, A1 and A2) determine which one of the outputs (O0–O7) will go LOW. When enable input E3 is held LOW or either E1 or E2 is held HIGH, decoding function is inhibited and all outputs go HIGH. E3, E1 and E2 inputs are provided to ease cascade connection and for use as an address decoder for memory systems. Protection circuits ensure that 0V to 7V can be applied to the input pins without regard to the supply voltage and to the out- put pins with VCC = 0V. These circuits prevent device destruction due to mismatched supply and input/output voltages. This device can be used to interface 3V to 5V systems and two supply systems such as battery backup. Ordering Information Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering number. Order Number Package Number Package Description 74VHCT138AM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 74VHCT138ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74VHCT138AMTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide |
Số phần tương tự - 74VHCT138A_07 |
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Mô tả tương tự - 74VHCT138A_07 |
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