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74VHCT240A bảng dữ liệu(PDF) 1 Page - Fairchild Semiconductor |
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74VHCT240A bảng dữ liệu(HTML) 1 Page - Fairchild Semiconductor |
1 / 7 page March 1997 Revised March 1999 © 1999 Fairchild Semiconductor Corporation DS500002.prf www.fairchildsemi.com 74VHCT240A Octal Buffer/Line Driver with 3-STATE Outputs General Description The VHCT240A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technol- ogy. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHCT240A is an inverting 3-STATE buffer having two active-LOW output enables. This device is designed to be used as 3-STATE memory address driv- ers, clock drivers, and bus oriented transmitter/receivers. Protection circuits ensure that 0V to 7V can be applied to the input and output (Note 1) pins without regard to the supply voltage. These circuits prevent device destruction due to mismatched supply and input/output voltages. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. Note 1: Outputs in OFF-State Features s High Speed: tPD = 5.6 ns (typ) at VCC = 5V s Power down protection is provided on inputs and outputs s Low power dissipation: ICC = 4 µA (max) @ TA = 25°C s Pin and function compatible with 74HCT240 Ordering Code: Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol IEEE/IEC Connection Diagram Pin Descriptions Order Number Package Number Package Description 74VHCT240AM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74VHCT240ASJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74VHCT240AMTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74VHCT240AN N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Pin Names Description OE1, OE2 3-STATE Output Enable I0–I7 Inputs O0–O7 Outputs 3-STATE Outputs |
Số phần tương tự - 74VHCT240A |
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Mô tả tương tự - 74VHCT240A |
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