AL460 HD FIFO Datasheet

©2007~2010 by AverLogic Technologies, Corp.

V1.2

8/14

20, 22, 24, 45, 59~63, 73,

75, 77, 79, 81, 83, 85, 87,

89, 91, 93, 95, 97, 100,

101, 108, 116

Miscellaneous Signals

Pin name

Pin number

I/O

type

Description

RSTN

32

I

Global reset (active Low)

PLRTY

33

I

Select active polarity of the control signals including

WEN, REN, WRST, RRST, IE, OE, ROEN and ROINV

(total of 8 signals)

PLRTY = VD33, active low.

PLRTY = GND, active high.

Note: during memory operation, the pin must be

permanently connected to VD33 or GND. If PLRTY level

is changed during memory operation, memory data is not

guaranteed.

XIN

67

I

Crystal input

XOUT

68

O

Crystal output

CSEL[1:0]

65, 66

I

Crystal input frequency select pins

“00” - 11.059200 MHz

“01” - 20.000000 MHz

“10” - 24.576000 MHz

“11” – 14.318180 MHz

* Minimum crystal frequency accuracy:

±100 ppm

VREF

72

AI

Reference voltage input

* Please refer to “External decoupling circuit” application

note for details

VREF2

25

AI

Reference voltage input 2

* Please refer to “External decoupling circuit” application

note for details

TFEN

96

I

Two frame mode enable:

“0” – Standard FIFO Mode

“1” – Two Frame Mode

TEST

1

I

Test pin (pull-down for normal operation)

SCAN

2

I

Scan mode Enable (pull-down for normal operation)

NC

26~31, 64, 69

-

No connect