ATV2500H Datasheet, PDF (1/15 Pages) ATMEL Corporation – High-Density UV-Erasable Programmable Logic Device

Features
• Third Generation Programmable Logic Structure
– Easily Achieves Gate Utilization Factors of 80 Percent
• Increased Logic Flexibility
– 86 Inputs and 72 Sum Terms
• Flexible Output Macrocell
– 48 Flip-Flops - 2 per Macrocell
– 3 Sum Terms - Can Be OR'ed and Shared
• High-Speed
• Low-Power — Less than 0.5 mA Typical (ATV2500L)
• Multiple Feedback Paths Provide for Buried State Machines
and I/O Bus Compatibility
• Asynchronous Clocks and Resets
– Multiple Synchronous Presets - One per Four or Eight Flip-Flops
• Proven and Reliable High Speed CMOS EPROM Process
– 2000V ESD Protection
– 200 mA Latchup Immunity
• Reprogrammable - Tested 100% for Programmability
• 40-pin Dual-In-line and 44-Lead Surface Mount Packages
Block Diagram
High-Density
UV-Erasable
Programmable
Logic Device
ATV2500H
ATV2500L
Description
The ATV2500H/L is the most powerful programmable logic device available in a 40-
pin package. Increased product terms, sum terms, and flip-flops translate into many
more usable gates. High gate utilization is easily obtainable.
The ATV2500H/L is organized around a global bus. All pin and feedback terms are
always available to every logic cell. Each of the 38 logic pins and their complements
are array inputs, as well as the true and false outputs of each of the 48 flip-flops.
(continued)
Pin Configurations
DIP
PLCC/LCC
Pin Name
IN
I/O
I/O, 0,2,4..
I/O, 1,3,5..
*
VCC
Function
Logic Inputs
Bidirectional Buffers
“Even” I/O Buffers
“Odd” I/O Buffers
No Internal Connection
+5V Supply
IN 1
IN 2
IN 3
I/O0 4
I/O1 5
I/O2 6
I/O3 7
I/O4 8
I/O5 9
VCC 10
I/O17 11
I/O16 12
I/O15 13
I/O14 14
I/O13 15
I/O12 16
IN 17
IN 18
IN 19
IN 20
40 IN
39 IN
38 IN
37 IN
36 I/O6
35 I/O7
34 I/O8
33 I/O9
32 I/O10
31 I/O11
30 GND
29 I/O23
28 I/O22
27 I/O21
26 I/O20
25 I/O19
24 I/O18
23 IN
22 IN
21 IN
I/O2 7
I/O3 8
I/O4 9
I/O5 10
VCC 11
VCC 12
I/O17 13
I/O16 14
I/O15 15
I/O14 16
I/O13 17
* = No Connect
39 I/O7
38 I/O8
37 I/O9
36 I/O10
35 I/O11
34 GND
33 GND
32 I/O23
31 I/O22
30 I/O21
29 I/O20
Rev. 0025E–05/98
1