GAL20RA10B-30LP datasheet(7/15 Pages) LATTICE

Part #	GAL20RA10B-30LP

Description	High-Speed Asynchronous E2CMOS PLD Generic Array Logic?

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Manufacturer	LATTICE [Lattice Semiconductor]

Direct Link	http://www.latticesemi.com

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Specifications GAL20RA10B

7

SYMBOL

PARAMETER

MAXIMUM*

UNITS

TEST CONDITIONS

C

I

Input Capacitance

8

pF

V

CC = 5.0V, VI = 2.0V

C

I/O

I/O Capacitance

10

pF

V

CC = 5.0V, VI/O = 2.0V

*Characterized but not 100% tested.

tpd

A

Input or I/O to Combinatorial Output

2

7.5

2

10

—

15

—

20

—

30

ns

tco

A

Clock to Output Delay

2

9

2

11

—

15

—

20

—

30

ns

tsu

—

Setup Time, Input or Fdbk before Clk

↑

3

—

4

—

7

—

10

—

20

—

ns

th

—

Hold Time, Input or Fdbk after Clk

↑

2

—

3

—

3

—

3

—

10

—

ns

fmax3

A

Maximum Clock Frequency with

83.3

—

66.7

—

45.0

—

33.3

—

20.0

—

MHz

External Feedback, 1/(tsu + tco)

A

Maximum Clock Frequency with

83.3

—

71.4

—

50.0

—

41.7

—

25.0

—

MHz

No Feedback

twh

—

Clock Pulse Duration, High

6

—

7

—

10

—

12

—

20

—

ns

twl

—

Clock Pulse Duration, Low

6

—

7

—

10

—

12

—

20

—

ns

ten/tdis

B,C

I or I/O to Output Enabled / Disabled

—

7.5

—

10

—

15

—

20

—

30

ns

ten/tdis

B,C

OE to Output Enabled / Disabled

—

5

—

9

—

12

—

15

—

20

ns

tar/tap

A

Input or I/O to Async. Reset / Preset

—

9

—

11

—

15

—

20

—

30

ns

tarw/tapw

—

Async. Reset / Preset Pulse Duration

6

—

10

—

15

—

20

—

20

—

ns

tarr/tapr

—

Async. Reset / Preset Recovery Time

7

—

7

—

10

—

12

—

20

—

ns

twp

—

Preload Pulse Duration

8

—

10

—

15

—

20

—

30

—

ns

tsp

—

Preload Setup Time

5

—

7

—

10

—

15

—

25

—

ns

thp

—

Preload Hold Time

5

—

7

—

10

—

15

—

25

—

ns

UNITS

-30

MIN.

MAX.

-20

MIN.

MAX.

-15

MIN.

MAX.

-10

MIN.

MAX.

PARAM.

DESCRIPTION

TEST

COND1.

-7

MIN.

MAX.

COM

COM / IND

COM

1) Refer to Switching Test Conditions section.

2) Refer to fmax Descriptions section.

AC Switching Characteristics

Over Recommended Operating Conditions

Capacitance (T

A = 25°C, f = 1.0 MHz)

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