M11B1644A / M11B1644SA
M11L1644A / M11L1644SA
FUNCTIONAL BLOCK DIAGRAM
DATA-IN BUFFER
WE
CONTROL
LOGIC
IO0
:
IO3
RAS
CAS
4
CLOCK
GENERATOR
DATA-OUT
BUFFER
OE
COLUMN
COLUMN
ADDRESS
BUFFER
11
DECODER
11
4
A0
A1
2048
4
A2
A3
SENSE AMPLIFIERS
I/O GATING 8
REFRESH
CONTROLER
A4
A5
A6
A7
A8
A9
A10
2048 x 4
REFRESH
COUNTER
11
2048 x 2048 x 4
MEMORY
ARRAY
2048
ROW.
ADDRESS
11
11
BUFFERS(11)
VCC
VSS
VBB GENERATOR
PIN DESCRIPTIONS
PIN NO.
PIN NAME
TYPE
DESCRIPTION
Address Input
8~11,14~19,7
A0~A10
Input
Row Address : A0~A10
Column Address : A0~A10
5
21
Input
Input
Input
Input
Row Address Strobe
Column Address Strobe
Write Enable
RAS
CAS
4
WE
20
Output Enable
OE
2,3,22,23
1,12
13,24
6
I/O0 ~ I/O3
Input / Output Data Input / Output
CC
V
Supply
Ground
-
Power, (5V or 3.3V)
Ground
SS
V
NC
No Connect
Elite Semiconductor Memory Technology Inc.
Publication Date : May. 2001
Revision : 1.1 2/16
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
