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Teilenummer | MC-458CB64PSB |
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Beschreibung | 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM | |
Hersteller | NEC | |
Logo | ||
Gesamt 16 Seiten DATA SHEET
MOS INTEGRATED CIRCUIT
MC-458CB64ESB, 458CB64PSB
8M-WORD BY 64-BIT
SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)
Description
The MC-458CB64ESB and MC-458CB64PSB are 8,388,608 words by 64 bits synchronous dynamic RAM module
(Small Outline DIMM) on which 4 pieces of 128M SDRAM: µPD45128163 are assembled.
These modules provide high density and large quantities of memory in a small space without utilizing the surface-
mounting technology on the printed circuit board.
Decoupling capacitors are mounted on power supply line for noise reduction.
Features
• 8,388,608 words by 64 bits organization
• Clock frequency and access time from CLK
Part number
/CAS Latency
Clock frequency
(MAX.)
MC-458CB64ESB-A10B
CL = 3
100 MHz
5 MC-458CB64PSB-A10B
CL = 2
CL = 3
CL = 2
67 MHz
100 MHz
67 MHz
• Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge
• Pulsed interface
• Possible to assert random column address in every cycle
• Quad internal banks controlled by BA0 and BA1 (Bank Select)
• Programmable burst-length (1, 2, 4, 8 and Full Page)
• Programmable wrap sequence (Sequential / Interleave)
• Programmable /CAS latency (2, 3)
• Automatic precharge and controlled precharge
• CBR (Auto) refresh and self refresh
• Single +3.3 V ± 0.3 V power supply
• LVTTL compatible
• 4,096 refresh cycles/64 ms
• Burst termination by Burst Stop command and Precharge command
• 144-pin small outline dual in-line memory module (Pin pitch = 0.8 mm)
• Unbuffered type
• Serial PD
Access time from CLK
(MIN.)
7 ns
8 ns
7 ns
8 ns
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. M12263EJAV0DS00 (10th edition)
Date Published February 2000 NS CP(K)
Printed in Japan
The mark • shows major revised points.
©
1996
MC-458CB64ESB, 458CB64PSB
DC Characteristics (Recommended Operating Conditions unless otherwise noted)
Parameter
Symbol
Test condition
MIN. MAX. Unit Notes
Operating current
ICC1 Burst length = 1, tRC ≥ tRC(MIN.)
IO = 0 mA
/CAS latency = 2
/CAS latency = 3
440 mA
440
1
Precharge standby current ICC2P CKE ≤ VIL(MAX.), tCK = 15 ns
5 in power down mode
ICC2PS CKE ≤ VIL(MAX.), tCK = ∞
Precharge standby current ICC2N CKE ≥ VIH(MIN.), tCK = 15 ns, /CS ≥ VIH(MIN.),
in non power down mode
Input signals are changed one time during 30 ns.
4 mA
4
80 mA
Active standby current in
ICC2NS CKE ≥ VIH(MIN.), tCK = ∞, Input signals are stable.
ICC3P CKE ≤ VIL(MAX.), tCK = 15 ns
32
20 mA
power down mode
Active standby current in
non power down mode
ICC3PS CKE ≤ VIL(MAX.), tCK = ∞
ICC3N CKE ≥ VIH(MIN.), tCK = 15 ns, /CS ≥ VIH(MIN.),
Input signals are changed one time during 30 ns.
16
120 mA
Operating current
ICC3NS CKE ≥ VIH(MIN.), tCK = ∞, Input signals are stable.
ICC4 tCK ≥ tCK(MIN.) , IO = 0 mA
/CAS latency = 2
80
400 mA
2
(Burst mode)
/CAS latency = 3
560
CBR (Auto) refresh current ICC5 tRC ≥ tRC(MIN.)
/CAS latency = 2
880 mA 3
/CAS latency = 3
880
Self refresh current
ICC6 CKE ≤ 0.2 V
8 mA
Input leakage current
Output leakage current
II(L) VI = 0 to 3.6 V, All other pins not under test = 0 V
IO(L) DOUT is disabled, VO = 0 to 3.6 V
–4 +4
– 1.5 + 1.5
µA
µA
High level output voltage
VOH IO = – 4.0 mA
2.4 V
Low level output voltage
VOL IO = + 4.0 mA
0.4 V
Notes 1. ICC1 depends on output loading and cycle rates. Specified values are obtained with the output open. In
addition to this, ICC1 is measured on condition that addresses are changed only one time during tCK(MIN.).
2. ICC4 depends on output loading and cycle rates. Specified values are obtained with the output open. In
addition to this, ICC4 is measured on condition that addresses are changed only one time during tCK(MIN.).
3. ICC5 is measured on condition that addresses are changed only one time during tCK(MIN.).
6 Data Sheet M12263EJAV0DS00
6 Page 5 Package Drawing
MC-458CB64ESB, 458CB64PSB
144 PIN DUAL IN-LINE MODULE (SOCKET TYPE)
M1 (AREA B)
R
Y
A (AREA B)
Q
L
M2 (AREA A)
I
F
HA
C
B
D
A1 (AREA A)
S
(OPTIONAL HOLES)
E
U1
N
M
U2
T
detail of A part
W D2
D1 X
V
ITEM
A
A1
B
C
D
D1
D2
E
F
H
I
L
M
M1
M2
N
Q
R
S
T
U1
U2
V
W
Y
MILLIMETERS
67.6
67.6±0.15
23.2
29.0
4.6
1.5±0.10
4.0
32.8
3.7
0.8(T.P.)
3.3
20.0
25.4±0.15
3.4
22.0
3.8 MAX.
R2.0
4.0±0.10
φ 1.8
1.0±0.1
3.2 MIN.
4.0 MIN.
0.25 MAX.
0.6±0.05
2.0 MIN.
M144S-80A10
12 Data Sheet M12263EJAV0DS00
12 Page | ||
Seiten | Gesamt 16 Seiten | |
PDF Download | [ MC-458CB64PSB Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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