TPU 3035, TPU 3040
PRELIMINARY DATA SHEET
3.6.15. DRAM Interface Characteristics
Symbol
Parameter
Pin No.
Min.
–
Typ.
Max.
0.8
–
Unit
Test Conditions
V
V
Input Low Voltage
Input High Voltage
3
–
–
–
–
5
V
IL
2.0
–
V
IH
V
V
Output Low Voltage
Output High Voltage
Output Transition Time
3 to 18
0.4
–
V
I = 1.6 mA
L
OL
2.4
–
V
I = *0.5 mA
L
OH
t
T
10
ns
C = 15 pF
L
V
OL(max) ↔ V
OH(min)
3.6.15.1. Fast Mode Timing at f
= 20.25 MHz
CLK
Symbol
Parameter
Pin No.
Min.
Typ.
Max.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions
t
t
Page Mode Cycle Time
CAS Pulse Width
6
98.8
60
10
90
40
110
45
55
55
15
105
55
5
PC
60
10
90
30
110
25
10
0
CAS
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CAS Precharge Time
RAS Precharge Time
RAS Hold Time
CP
5
RP
5, 6
RSH
CSH
RCD
CRP
ASR
RAH
AR
CAS Hold Time
RAS to CAS Delay Time
CAS to RAS Precharge Time
Row Address Setup Time
Row Address Hold Time
Column Address Hold Time
Column Address Lead Time
Column Address Setup Time
Column Address Hold Time
Read Command Hold Time
Read Command Hold Time
Write Command Hold Time
Write Command Setup Time
DATA Output Hold Time
DATA Output Setup Time
DATA Output Hold Time
DATA Input Setup Time
5, 7 to 18
15
90
55
0
RAL
ASC
CAH
RRH
RCH
WCH
WCS
DOHR
DOS
DOH
DIS
6, 7 to 18
25
10
0
60
80
50
90
30
105
0
4, 5
4, 6
25
0
3, 5
3, 6
90
0
25
20
0
60
DATA Input Hold Time
DIH
20
MICRONAS INTERMETALL
MICRONAS [ MICRONAS ]
