KM416C256ALJ-7 Datasheet, PDF (2/2 Pages) List of Unclassifed Manufacturers – C-MOS 4M (256K X 16)-BIT DYNAMIC RAM WITH FAST PAGE MODE

RAS LCAS UCAS W
1
1
1
1
0
1
1
1
0
0
1
1
0
1
0
1
0
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
1
0 ; LOW LEVEL
1 ; HIGH LEVEL
X ^{; DON'T CARE}
HI-Z ^{; HIGH IMPEDANCE}
KM416C256ALJ-7(2/2)
OE DQ1 - DQ8 DQ9 - DQ16
STATE
1
HI-Z
HI-Z
STANDBY
1
HI-Z
HI-Z
REFRESH
0
DQ-OUT
HI-Z
LOWER BYTE READ
0
HI-Z
DQ-OUT UPPER BYTE READ
0
DQ-OUT DQ-OUT
WORD READ
1
DQ IN
X
LOWER BYTE WRITE
1
X
DQ-IN UPPER BYTE WRITE
1
DQ-IN
DQ-IN
WORD WRITE
1
HI-Z
HI-Z
RAS ¹⁴
LCAS ²⁹
UCAS ²⁸
W ¹³
CONTROL
CLOCKS
VDD
1, 6, 20
GND
21, 35, 40
VBB GENERATOR
REFRESH
CONTROL
ROW DECODER
16 - 19
22 - 26
A0 - A8
REFRESH
COUNTER
ROW ADDRESS
BUFFER
MEMORY ARRAY
262, 144X16
CELLS
COL ADDRESS
BUFFER
COLUMN
DECODER
LOWER
DATA IN
BUFFER
LOWER
DATA OUT
BUFFER
2-5
7 - 10
DQ1 - DQ8
OE
UPPER
DATA IN
BUFFER
UPPER
DATA OUT
BUFFER
31 - 34
36 - 39
DQ9 - DQ16