AS4C8M16S-7BCN Alliance Memory, AS4C8M16S-7BCN Datasheet - Page 13

• Manufacturer Part Number: AS4C8M16S-7BCN
• Description: DRAM 128Mb, 3.3V, 143Mhz 8M x 16 SDRAM
• Manufacturer: Alliance Memory

Specifications of AS4C8M16S-7BCN

• Rohs: yes
• Data Bus Width: 16 bit
• Organization: 8 M x 16
• Memory Size: 128 MB
• Maximum Clock Frequency: 143 MHz
• Access Time: 5 ns, 5.4 ns
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Maximum Operating Current: 120 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT

FEBRUARY 2011
•
This field specifies the data length of column access using the A2~A0 pins and selects the Burst
Length to be 2, 4, 8, or full page.
Table 6. Burst Length Field
Full Page Length: 512
•
The Burst Type can be one of two modes, Interleave Mode or Sequential Mode.
Table 7. Burst Type Field
•
Burst Length
Table 8. Burst Definition
Full page
Burst Length Field (A2~A0)
Burst Type Field (A3)
Burst Definition, Addressing Sequence of Sequential and Interleave Mode
A3
A2
0
1
2
4
8
0
0
0
0
1
1
1
1
location = 0-511
A2
X
X
X
X
X
X
0
0
0
0
1
1
1
1
Start Address
A1
0
0
1
1
0
0
1
1
Burst Type
A1
Sequential
Interleave
X
X
0
0
1
1
0
0
1
0
0
1
1
1
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A0
n, n+1, n+2, n+3, …511, 0,
1, 2, … n-1, n, …
0
1
0
1
0
1
0
1
0, 1, 2, 3, 4, 5, 6, 7
1, 2, 3, 4, 5, 6, 7, 0
2, 3, 4, 5, 6, 7, 0, 1
3, 4, 5, 6, 7, 0, 1, 2
4, 5, 6, 7, 0, 1, 2, 3
5, 6, 7, 0, 1, 2, 3, 4
6, 7, 0, 1, 2, 3, 4, 5
7, 0, 1, 2, 3, 4, 5, 6
Sequential
0, 1, 2, 3
1, 2, 3, 0
2, 3, 0, 1
3, 0, 1, 2
13
0, 1
1, 0
Burst Length
Reserved
Reserved
Reserved
Full Page
1
2
4
8
0, 1, 2, 3, 4, 5, 6, 7
1, 0, 3, 2, 5, 4, 7, 6
2, 3, 0, 1, 6, 7, 4, 5
3, 2, 1, 0, 7, 6, 5, 4
4, 5, 6, 7, 0, 1, 2, 3
5, 4, 7, 6, 1, 0, 3, 2
6, 7, 4, 5, 2, 3, 0, 1
7, 6, 5, 4, 3, 2, 1, 0
Not Support
Interleave
1, 0, 3, 2
0, 1, 2, 3
2, 3, 0, 1
3, 2, 1, 0
0, 1
1, 0
AS4C8M16S