HANBit
HSD32M32M4V
AC CHARACTERISTICS
(AC operating conditions unless otherwise noted)
-A
MAX MIN
-8
-H
-L
PARAMETER
SYMBOL
UNIT
NOTE
MIN
MAX MIN
MAX MIN
MAX
CLK cycle time CAS
7.5
8
-
10
1000
10
12
latency=3
tCC
1000
1000
1000
ns
ns
ns
1
CAS
-
10
latency=2
CAS
CLK to valid
output delay
5.4
-
6
-
6
6
6
7
latency=3
CAS
tSAC
1,2
latency=2
CAS
Output data
hold time
2.7
-
3
-
3
3
3
3
latency=3
CAS
tOH
2
latency=2
CLK high pulse width
CLK low pulse width
Input setup time
tCH
tCL
2.5
2.5
1.5
0.8
1
3
3
2
1
1
3
3
2
1
1
3
3
2
1
1
ns
ns
ns
ns
ns
3
3
3
3
3
tSS
tSH
tSLZ
Input hold time
CLK to output in Low-Z
CLK to output
in Hi-Z
CAS
5.4
-
6
-
6
6
6
7
ns
ns
2
latency=3
CAS
tSHZ
latency=2
Notes :
1. Parameters depend on programmed CAS latency.
2. If clock rising time is longer than 1ns, (tr/2-0.5)ns should be added to the parameter.
3. Assumed input rise and fall time (tr & tf) = 1ns.
If tr & tf is longer than 1ns, transient time compensation should be considered, ie., [(tr + tf)/2-1]ns should be added to
the parameter.
SIMPLIFIED TRUTH TABLE
/R
A
S
/C
A
S
D
Q
M
CKE
CKE
n
/C
S
/W
E
BA
0,1
A10/
AP
A11,A12,
A9~A0
n-1
COMMAND
NOTE
Register
Refresh
Mode register set
Auto refresh
H
H
X
H
L
L
L
L
L
L
X
OP code
X
1,2
3
L
L
H
X
Entry
3
Self
refres
h
L
H
L
H
X
L
H
X
H
H
X
H
3
Exit
L
H
X
X
X
X
3
Bank active & row addr.
H
V
Row address
HANBit Electronics Co.,Ltd
URL:www.hbe.co.kr
REV.1.0 (August.2002)
- 7 -
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
