Electronic Components Datasheet Search |
|
M4A3-256/128-10FAC Datasheet(PDF) 5 Page - Lattice Semiconductor |
|
M4A3-256/128-10FAC Datasheet(HTML) 5 Page - Lattice Semiconductor |
5 / 62 page ispMACH 4A Family 5 FUNCTIONAL DESCRIPTION The fundamental architecture of ispMACH 4A devices (Figure 1) consists of multiple, optimized PAL® blocks interconnected by a central switch matrix. The central switch matrix allows communication between PAL blocks and routes inputs to the PAL blocks. Together, the PAL blocks and central switch matrix allow the logic designer to create large designs in a single device instead of having to use multiple devices. The key to being able to make effective use of these devices lies in the interconnect schemes. In the ispMACH 4A architecture, the macrocells are flexibly coupled to the product terms through the logic allocator, and the I/O pins are flexibly coupled to the macrocells due to the output switch matrix. In addition, more input routing options are provided by the input switch matrix. These resources provide the flexibility needed to fit designs efficiently. Notes: 1. 16 for ispMACH 4A devices with 1:1 macrocell-I/O cell ratio (see next page). 2. Block clocks do not go to I/O cells in M4A(3,5)-32/32. 3. M4A(3,5)-192, M4A(3,5)-256, M4A3-384, and M4A3-512 have dedicated clock pins which cannot be used as inputs and do not connect to the central switch matrix. I/O Pins Clock/Input Pins I/O Pins I/O Pins Dedicated Input Pins PAL Block PAL Block Logic Allocator with XOR Output/ Buried Macrocells 33/ 34/ 36 16 16 Clock Generator Logic Array Input Switch Matrix 16 16 8 Note 1 Note 2 Note 3 4 PAL Block 17466G-001 Figure 1. ispMACH 4A Block Diagram and PAL Block Structure |
Similar Part No. - M4A3-256/128-10FAC |
|
Similar Description - M4A3-256/128-10FAC |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |