74HC259D: 8-bit addressable latch
The 74HC259; 74HCT259 is an 8-bit addressable latch. The device features four modes of operation.
In the addressable latch mode, data on the D input is written into the latch addressed
by the inputs AO to A3. The addressed latch will follow the data input, non-addressed
latches will retain their previous states. In memory mode, all latches retain their
previous states and are unaffected by the data or address inputs. In the 3-to-8 decoding
or demultiplexing mode, the addressed output follows the D input and all other outputs
are LOW. In the reset mode, all outputs are forced LOW and unaffected by the data or
address inputs. Inputs include clamp diodes. This enables the use of current limiting
resistors to interface inputs to voltages in excess of VCC.
74HC259D: Product Block Diagram
sot109-1_3d
Data Sheets (1)
Application Notes (3)
Users Guides (1)
| Name/Description | Modified Date |
|---|
| HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English] | 01 Nov 1997 |
Package Information (1)
Supporting Information (2)
Ordering Information
| Product | Status | Family | VCC (V) | Function | Logic switching levels | Description | Output drive capability (mA) | Package version | tpd (ns) | No of bits | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|
| 74HC259D | Active | HC(T) | 2.0 - 6.0 | Latches/registered drivers | CMOS | 8 bit addressable latch | +/- 5.2 | SOT109-1 | 18 | 8 | low | -40~125 | 88 | 7.7 | 47 | SO16 | 16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|
| 74HC259D | | SOT109-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE
SO-SOJ-REFLOW
SO-SOJ-WAVE | Reel 13" Q1/T1 CECC | Active | 74HC259D,653
(9337 146 50653) | 74HC259D | 74HC259D |    | week 6, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
| Bulk Pack, CECC | Active | 74HC259D,652
(9337 146 50652) | 74HC259D | 74HC259D | | week 6, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
