Rainbow Electronics ATF1500AL User Manual

Pin configurations, Features, Description

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1

TQFP

Top View

1

2

3

4

5

6

7

8

9

10

11

33

32

31

30

29

28

27

26

25

24

23

I/O

I/O

I/O

GND

I/O

I/O

I/O

I/O

VCC

I/O

I/O

I/O

I/O

I/O

I/O

VCC

I/O

I/O

I/O

I/O

GND

I/O

44

43

42

41

40

39

38

37

36

35

34

12

13

14

15

16

17

18

19

20

21

22

I/O

I/O

I/O

I/O

GND

VCC

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O/PD

VCC

OE2/I

GCLR/I

OE1/I

CLK/I

GND

I/O

I/O

PLCC

Top View

7

8

9

10

11

12

13

14

15

16

17

39

38

37

36

35

34

33

32

31

30

29

I/O

I/O

I/O

GND

I/O

I/O

I/O

I/O

VCC

I/O

I/O

I/O

I/O

I/O

I/O

VCC

I/O

I/O

I/O

I/O

GND

I/O

6

5

4

3

2

1

44

43

42

41

40

18

19

20

21

22

23

24

25

26

27

28

I/O

I/O

I/O

I/O

GND

VCC

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O/PD

VCC

OE2/I

GCLR/I

OE1/I

CLK/I

GND

I/O

I/O

Pin Configurations

Pin
Name

Function

CLK

Clock

I

Logic Inputs

I/O

Bidirectional
Buffers

GCLR

Register Reset
(active low)

OE1,
OE2

Output Enable
(active low)

VCC

+5V Supply

PD

Power Down
(active high)

Features

High-density, High-performance Electrically-erasable Complex
Programmable Logic Device

– 44-pin, 32 I/O CPLD
– 7.5 ns Maximum Pin-to-pin Delay
– Registered Operation Up To 125 MHz
– Fully Connected Input and Feedback Logic Array
– Backward Compatibility with ATF1500/L Software and Hardware

Flexible Logic Macrocell

– D/T/Latch Configurable Flip Flops
– Global and Individual Register Control Signals
– Global and Individual Output Enable
– Programmable Output Slew Rate

Advanced Power Management Features

– Automatic 3 mA Stand-By (ATF1500AL)
– Pin-controlled 10 mA Standby Mode
– Programmable Pin-Keeper Inputs and I/Os

Available in Commercial and Industrial Temperature Ranges

Available in 44-pin PLCC and TQFP Packages

Advanced Flash Technology

– 100% Tested
– Completely Reprogrammable
– 100 Program/Erase Cycles
– 20 Year Data Retention
– 2000V ESD Protection
– 200 mA Latch-up Immunity

Supported By Popular 3rd Party Tools

Security Fuse Feature

Pin-compatible with the Most Commonly Used Devices

Description

The ATF1500A is a high-performance, high-density complex PLD. Built on an
advanced Flash technology, it has maximum pin to pin delays of 7.5 ns and supports
sequential logic operation at speeds up to 125 MHz. With 32 logic macrocells and up
to 36 inputs, it easily integrates logic from several TTL, SSI, MSI and classic PLDs.
The ATF1500A’s global input and feedback architecture simplifies logic placement
and eliminates pinout changes due to design changes.

High-
performance
EPLD

ATF1500A
ATF1500AL

Rev. 0759E–06/99

(continued)

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