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參數(shù)資料
| 型號： | ATV2500H |
| 廠商： | Atmel Corp. |
| 英文描述： | High-density UV Erasable Programmable Logic Device(高密度紫外線可擦除PLD) |
| 中文描述： | 高密度的紫外線可擦除可編程邏輯器件（高密度紫外線可擦除可編程邏輯器件） |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 451K |
| 代理商： | ATV2500H |
1
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
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.
High-Density
UV-Erasable
Programmable
Logic Device
ATV2500H
ATV2500L
Rev. 0025E–05/98
(continued)
Pin Configurations
Pin Name
Function
IN
Logic Inputs
I/O
Bidirectional Buffers
I/O, 0,2,4..
“Even” I/O Buffers
I/O, 1,3,5..
“Odd” I/O Buffers
*
No Internal Connection
VCC
+5V Supply
DIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
IN
IN
IN
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
VCC
I/O17
I/O16
I/O15
I/O14
I/O13
I/O12
IN
IN
IN
IN
IN
IN
IN
IN
I/O6
I/O7
I/O8
I/O9
I/O10
I/O11
GND
I/O23
I/O22
I/O21
I/O20
I/O19
I/O18
IN
IN
IN
PLCC/LCC
* = No Connect
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
I/O2
I/O3
I/O4
I/O5
VCC
VCC
I/O17
I/O16
I/O15
I/O14
I/O13
I/O7
I/O8
I/O9
I/O10
I/O11
GND
GND
I/O23
I/O22
I/O21
I/O20
6
5
4
3
2
1
4
4
4
4
4
1
1
2
2
2
2
2
2
2
2
2
I
I
I
I
I
I
I
I
*
I
I
I
I
*
I
I
I
I
I
I
I
I
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