SN74HC251 Overview
Key Specifications
Package: PDIP
Mount Type: Through Hole
Pins: 16
Operating Voltage: 5 V
Description
The SNx4HC251 is a data selector/multiplexer containing full binary decoding to select 1of-8 data sources and features strobe-controlled complementary 3-state outputs. PART NUMBER SN74HC251D SN74HC251DB SN74HC251N SN74HC251NS SN74HC251PW SN54HC251J SNJ54HC251FK Device Information PACKAGE(1) BODY SIZE (NOM) SOIC (16) 9.90 mm × 3.90 mm SSOP (16) 6.20 mm × 5.30 mm PDIP (16) 19.31 mm × 6.35 mm SO (16) 6.20 mm × 5.30 mm TSSOP (16) 5.00 mm × 4.40 mm CDIP (16) 24.38 mm × 6.92 mm LCCC (20) 8.89 mm × 8.45 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
Key Features
- 3-state version of ’HC151
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state outputs interface directly with system bus or can drive up to 15 LSTTL loads
- Low power consumption, 80-μA max ICC
- Typical tpd = 9 ns
- ±6-mA output drive at 5 V
- Low input current of 1 μA max
- Perform parallel-to-serial conversion
- Complementary outputs provide true and inverted data
