A42L8316S AMIC Technology, A42L8316S Datasheet - Page 2

• Manufacturer Part Number: A42L8316S
• Description: 256K X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE
• Manufacturer: AMIC Technology

Preliminary
Features
n Organization: 262,144 words X 16 bits
n Part Identification
n Single 3.3V power supply/built-in VBB generator
n Low power consumption
n High speed
General Description
The A42L8316 is a new generation randomly accessed
memory for graphics, organized in a 262,144-word by 16-
bit configuration. This product can execute Byte Write
and Byte Read operation via two CAS pins.
The A42L8316 offers an accelerated Fast Page Mode
Pin Configuration
cycle with a feature called Extended Data Out (EDO).
PRELIMINARY
VCC
VCC
VCC
RAS
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
WE
NC
NC
NC
- A42L8316 (512 Ref.)
- Operating: 110mA (-30 max)
- Standby: 2.5mA (TTL), 1.5mA (CMOS)
- 30/35/40 ns RAS access time
- 16/17/18 ns column address access time
- 9/10/11 ns CAS access time
- 14/16/18 ns EDO Page Mode Cycle Time
A0
A1
A2
A3
n n SOJ
0
1
2
3
4
5
6
7
1
7
8
9
10
11
12
13
14
15
16
17
18
19
2
3
4
5
6
20
1.0mA (Self-refresh current)
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
(August, 2002, Version 0.1)
VSS
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
VSS
VSS
15
14
13
12
11
10
9
8
256K X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE
VCC
VCC
RAS
VCC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
WE
NC
NC
NC
A0
A1
A2
A3
0
1
2
3
4
5
6
7
n n TSOP
1
7
8
9
10
13
14
15
16
17
18
19
20
21
2
3
4
5
6
22
44
43
42
41
40
39
38
37
36
35
32
31
30
29
28
27
26
25
24
23
VSS
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
VSS
VSS
15
14
13
12
11
10
9
8
1
n Industrial operating temperature range: -40 C to 85 C
n Fast Page Mode with Extended Data Out
n Separate CAS (
n 512 Refresh Cycle in 8ms
n Read-modify-write, RAS -only, CAS -before- RAS ,
n TTL-compatible, three-state I/O
n JEDEC standard packages
This allow random access of up to 512 words within a row
at a 71/62/55 MHz EDO cycle, making the A42L8316
ideally suited for graphics, digital signal processing and
high performance computing systems.
Pin Descriptions
for -U
Hidden refresh capability
- 400mil, 40-pin SOJ
- 400mil, 40/44 TSOP type II package
Symbol
A0 – A8
I/O
VCC
VSS
NC
RAS
LCAS
UCAS
WE
OE
0
- I/O
15
Address Inputs
Data Input/Output
Row Address Strobe
Column Address Strobe for Lower Byte
(I/O
Column Address Strobe for Upper Byte
(I/O
Write Enable
Output Enable
3.3V Power Supply
Ground
No Connection
UCAS
A42L8316 Series
0
8
– I/O
– I/O
AMIC Technology, Inc.
,
LCAS
7
15
)
)
Description
) for byte selection