DP8419N-70 National Semiconductor, DP8419N-70 Datasheet - Page 21

• Manufacturer Part Number: DP8419N-70
• Description: IC CTRLR 256K DRAM 48-DIP
• Manufacturer: National Semiconductor

Specifications of DP8419N-70

• Controller Type: Dynamic RAM (DRAM) Controller, Drivers
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 150mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 48-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: *DP8419N-70

V
I
I
I
I
V
V
V
V
V
V
I
I
I
Symbol
ACCESS
t
t
t
t
t
t
t
t
t
t
t
t
t
Electrical Characteristics
Symbol
Switching Characteristics DP8417 DP8418 DP8419 DP8419X
V
banks of 22 DRAMs each or 88 DRAMs including trace capacitance
unless otherwise noted See Figure 11a for test load S1 is open unless otherwise noted Maximum propagation delays
are specified with all outputs switching
IH
I
IL 1
IL2
1D
0D
CC
RICL0
RICL0
RICL1
RICL1
RICH
RCDL0
RCDL0
RCDL1
RCDL1
RCDH
RAH0
RAH1
ASC
C
IL
IH
OL1
OL2
OH1
OH2
CC
RSI
Except RFI O ADS R C CS M2 RASIN
These values are Q0-Q8 C
Except RFI O
Preliminary
e
5 0V
RASIN to CAS Low Delay
(RAHS
RASIN to CAS Low Delay
(RAHS
RASIN to CAS Low Delay
(RAHS
RASIN to CAS Low Delay
(RAHS
RASIN to CAS High Delay
RAS to CAS Low Delay
(RAHS
RAS to CAS Low Delay
(RAHS
RAS to CAS Low Delay
(RAHS
RAS to CAS Low Delay
(RAHS
RAS to CAS High Delay
Row Address Hold Time
(RAHS
Row Address Hold Time
(RAHS
Column Address Set-up Time
(Mode 5)
g
Input Clamp Voltage
Input High Current for all Inputs
Output Load Current for RFI O
Input Low Current for all Inputs
ADS R C CS M2 RASIN
Input Low Threshold
Input High Threshold
Output Low Voltage
Output Low Voltage for RFI O
Output High Voltage
Output High Voltage for RFI O
Output High Drive Current
Output Low Drive Current
Supply Current
10% 0 C
e
e
e
e
e
e
e
e
e
e
Parameter
0)
0)
1)
1)
0)
0)
1)
1)
0 Mode 5)
1 Mode 5)
Parameter
s
T
L
A s
e
500 pF RAS0– RAS3 C
70 C unless otherwise noted (Notes 2 4 5) the output load capacitance is typical for 4
V
CC
e
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
Figure 6
DP8417 18 19-80
DP8417 18 19-70
DP8417 18 19-80
DP8417 18 19-70
DP8417 18 19-80
DP8417 18 19-70
DP8417 18 19-80
DP8417 18 19-70
5 0V
V
V
V
V
V
I
I
I
I
V
V
V
Condition
OL
OL
OH
OH
CC
IN
IN
IN
IN
OUT
OUT
CC
g
e
e
e
e
e
e
e b
e b
e
e
10% 0 C
e
e
20 mA
8 mA
2 5V
0 5V Output high
0 5V
0 5V
Conditions
Min I
Max
L
0 8V (Note 3)
2 4V (Note 3)
21
1 mA
100 A
e
150 pF WE C
C
e b
s
T
A s
Min
12 mA
57
57
48
48
43
43
34
34
25
15
0
70 C unless otherwise noted (Note 2)
CL
L
e
Max
97
87
80
70
37
80
72
63
55
22
500 pF CAS C
b
Min
2 0
2 4
2 4
50
50
Min
b
b
b
b
42
42
35
35
25
15
b
Typ
0
200
150
All C
2 0
0 3
0 3
3 5
3 5
0 02
0 05
0 7
200
0 8
L
L
e
e
600 pF RL
50 pF
b
b
b
b
Max
100
240
Max
0 8
0 5
0 5
0 25
85
75
68
58
1 5
0 5
1 2
e
Units
500
Units
mA
mA
mA
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
A