When most teams would have just thrown for the necessary yards to get a first down, the Cardinals went for it all - and got it.
"When it's time to step up, that's what you have to do," Brown said. "They had a safety on me, so when they put him on me, all I had to do was run past him."
"I'm not surprised," Palmer said. "Nothing's too big for him."
Philadelphia coach Chip Kelly thought about going for the touchdown, but decided to put the game in his defense's hands.
"I thought our defense was playing really, really well," he said. "I had confidence in them and told them we were kicking the field goal because I had confidence in them."
Then on third-and-5, Palmer -- who also had an 80-yard TD pass to Larry Fitzgerald -- saw something at the line of scrimmage that led him to give Brown a signal to change his route.
The quarterback lofted the ball deep, where the speedy Brown caught it and crossed the goal line just as he was being tackled.
Arians called it "a Willie Mays catch."
"We had three guys at 8 yards for first downs, but when there's a touchdown involved in the play, never pass it up," he said. "Don't play scared, play smart."
"That one's on me," he said.
Foles and Matthews each tried to take the blame.
"Jordan came down with a great catch," Foles said, "but I've got to make sure I keep him inbounds."
Matthews said: "I had to come down with it and get both feet in for my team. End of the day, Nick gave me a chance and I need to make a play for the team."
Catanzaro set an NFL rookie record by beginning his career with 16 consecutive field goals.
Maclin caught 12 passes for 187 yards, including touchdowns of 21 and 54 yards. Fitzgerald caught seven for 160, Brown five for 119.
Palmer finished 20 of 42 for 329 yards and two scores with no interceptions.
Fitzgerald, who got his 37th career 100-yard receiving game, surpassed his career-long catch of 78 yards set in 2008.
Peterson left the game in the second quarter with a possible concussion after teammate Bucannon hit Maclin, knocking the Philadelphia receiver's helmet into Peterson's. Maclin also was evaluated for a concussion after the play but returned to the game a short time later.
NOTES: The Eagles were penalized 11 times for 103 yards, the Cardinals 10 times for 95 yards. ... Arizona RB Stepfan Taylor in the third quarter with a calf injury. ... The Cardinals lost a fumble for only the fourth time this season. ... Cromartie had his second career two-interception day. ... Foles has 12 TD passes and nine interceptions this season. ... Arizona did not throw an interception for the sixth time in seven games. ... The Eagles (110 yards) were the first team to rush for more than 100 yards against Arizona.
Copyright 2014 by The Associated Press