Product comparison matrix
available from Jameco, Arrow, Avnet, Marshall
Schematic for the download cable.
SRAM Address Generator and Chip Enable Controller intended for use with PIC16Cxx processors using Port D for a data bus and Port E for control. It supports standard memory devices up to 512K Bytes and provides 4 auxiliary Chip Enables. This version has reduced propagation delays and better documentation.
a 28-Bit Programmable Comparator with Bit-Enable ("Don't Care" Bits). It uses an SPI-style serial interface to load the Bit-Enable qualifiers and the Comparator data. This data is compared with the 28 Inputs to generate an Equality Output. Inputs with their corresponding Bit-Enables cleared are ignored. It also provides a Serial Data Output and an Enable Input to support expansion. One application is a 28-Bit Trigger Comparator in a Logic Analyzer. In this version, I was able to `squeeze' 4 more Bits out of the design and reduce the propagation delays from the Comparator Inputs to the Equality Output by 9ns for the 100MHz device.
This is a 32-Bit Buffered Serial Latch. It uses an SPI-style serial interface to load a 32-Bit Shift Register. The 32-Bit Buffered Latch accepts 32 Bits of data clocked in MSB-first on the SDI (Serial Data In) pin. Data is transferred to the 32-Bit Output Latches on the Rising Edge of the LE (Latch Enable) pin. This is similar to four 74xx595s. An Active-Low Global Reset clears all outputs. All pins have active Pull-ups.
This is a 32-Bit Parallel Input, Serial Output, Shift Register with an SPI-style interface. The 32-Bit Inputs are simultaneously transferred to a 32-Bit Shift Register on the Rising Edge of SCLK when LD1/LD2 (Load Data) are High. Data is then clocked out of the Register MSB-first on the SDO (Serial Data Out) pin. All pins have active Pull-ups.
This is a combination 16-Bit Input, Serial Output, Shift Register and Serial Input, 16-Bit Output, Buffered Latch with an SPI-style interface. An Active-Low Global Reset clears all registers. All pins have active Pull-ups. The 16-Bit Inputs are simultaneously transferred to a 16-Bit Shift Register on the Rising Edge of SCLK when LD (Load Data) is High. Data is then clocked out of the Register MSB-first on the SDO (Serial Data Out) pin. The 16-Bit Buffered Latch accepts 16 Bits of data clocked in MSB-first on the SDI (Serial Data In) pin. Data is transferred to the 16-Bit Output Latches on the Rising Edge of the LE (Latch Enable) pin.
|file: /Techref/lattice/index.htm, 6KB, , updated: 2017/10/1 20:43, local time: 2022/8/14 09:18,
|©2022 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.sxlist.com/Techref/lattice/index.htm"> Lattice Semiconductor </A>
|Did you find what you needed?|
Welcome to sxlist.com!
& kind contributors
just like you!
Please don't rip/copy
Copies of the site on CD
are available at minimal cost.
Welcome to www.sxlist.com!