lf4415 LOGIC Devices Inc., lf4415 Datasheet - Page 6

• Manufacturer Part Number: lf4415
• Description: Video Memory / Fifo
• Manufacturer: LOGIC Devices Inc.

LOGIC Devices Incorporated
I/O Word
Width
Figure 5 - Single Channel FIFO I/O Mapping
10
12
16
20
24
8
I/O1 9 I/O 18 I/O 17 I/O 16 I/O 15 I/O 14 I/O 13 I/O 12 I/O 11 I/O 10 ----
I/O 15 I/O 14 I/O 13 I/O 12 I/O 11 I/O 10 I/O 9 I/O 8
I/O 23 I/O 22 I/O 21 I/O 20 I/O 19 I/O 18 I/O 17 I/O 16 I/O 15 I/O 14 I/O 13 I/O 12
11
10
LF4430 (30Mbit) Memory Organization
Channels
# FIFO
RDRW
*Only Single Channel Modes are capable of using the External Address port (ADDR)
www.logicdevices.com
Figure 3 - LF4430 (30Mbit) Memory Organization Control
Figure 4 - External Address Port Configuration*
9
1
1
1
1
1
1
2
2
2
0
1
8
Override
Address Description
(2x) 8 x 1,940,040
(2x) 10 x 1,552,320
(2x) 12 x 1,293,600
7
D1/Q1
Read
Write
Organization
10 x 3,104,640
12 x 2,587,200
16 x 1,940,040
20 x 1,552,320
24 x 1,293,600
6
8 x 3,880,800
Memory
[11:0]
External address port (ADDR) overrides WRITE address when WSET0 = LOW
External address port (ADDR) overrides READ address when RSET = LOW
5
4
----
3
MODE
000x
0010
0011
100x
1010
1011
110x
1110
1111
----
2
6
1
----
0
----
----
10bit wide 30Mbit single-channel FIFO
12bit wide 30Mbit single-channel FIFO
16bit wide 30Mbit single-channel FIFO
20bit wide 30Mbit single-channel FIFO
24bit wide 30Mbit single-channel FIFO
Two independent 8bit wide 15Mbit FIFOs
Two independent 10bit wide 15Mbit FIFOs
Two independent 12bit wide 15Mbit FIFOs
Description
8bit wide 30Mbit single-channel FIFO
11
I/O
I/O 9 I/O 8 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 I/O 2 I/O 1 I/O 0
I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 I/O 2 I/O 1 I/O 0
I/O 11 I/O 10 I/O 9 I/O 8 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 I/O 2 I/O 1 I/O 0
I/O 11 I/O 10 I/O 9 I/O 8 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 I/O 2 I/O 1 I/O 0
I/O 9 I/O 8 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 I/O 2 I/O 1 I/O 0 NC
7
I/O
10
PRELIMINARY
6
I/O
9
5
I/O
High Performance Memory Product
8
4
I/O
7
3
D0/Q0
I/O
6
2
Video Memory / FIFO
I/O
[11:0]
5
1
I/O
4
0
January 23, 2008 LDS-44xx-A
FRAME
MEMORY
----
----
3
----
----
2
LF4460
LF4430
LF4415
1
----
----
----
NC
----
----
----
0