74HC540
Features
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state outputs drive bus lines directly or up to 15 LSTTL loads
- Low power consumption, 80-μA max ICC
- Typical tpd = 8 ns
- ±6-m A output drive at 5 V
- Low input current of 1 μA max
- Data flow-through pinout (all inputs on opposite side from outputs)
2 Description
These octal buffers and line drivers feature the performance of the popular ’HC240 series and offer a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly facilitates printed circuit board layout.
The 3-state control gate is a 2-input NOR. If either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. The ’HC540 devices provide inverted data at the outputs.
PART NUMBER SN54HC540J SN74HC540DW SN74HC540N SN74HC540NSR SN74HC540PW
Device Information
PACKAGE(1) BODY SIZE (NOM)
CDIP (20)
26.92 mm × 6.92 mm
SOIC (20)
12.80 mm × 7.50 mm
PDIP (20)
25.40 mm × 6.35 mm
SO...
