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PDF LC322271T-80 Data sheet ( Hoja de datos )
| Número de pieza | LC322271T-80 | |
| Descripción | 2 MEG (131072 words X 16 bits) DRAM Fast Page Mode / Byte Write | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : EN*5085A
Preliminary
CMOS LSI
LC322271J, M, T-70/80
2 MEG (131072 words × 16 bits) DRAM
Fast Page Mode, Byte Write
Overview
The LC322271J, M and T is a CMOS dynamic RAM
operating on a single 5 V power source and having a
131072 words × 16 bits configuration. Equipped with
large capacity capabilities, high speed transfer rates and
low power dissipation, this series is suited for a wide
variety of applications ranging from computer main
memory and expansion memory to commercial
equipment.
Address input utilizes a multiplexed address bus which
permits it to be enclosed in a compact plastic package of
SOJ 40-pin, SOP 40-pin, and TSOP 44-pin . Refresh rates
are within 8 ms with 512 row address (A0 to A7, A8R)
selection and support Row Address Strobe (RAS)-only
refresh, Column Address Strobe (CAS)-before-RAS
refresh and hidden refresh settings. There are functions
such as fast page mode, read-modify-write and byte write.
The pin assignment follows the JEDEC 1 M DRAM
(65536 words × 16 bits, 1CAS/2WE) standard.
Features
• 131072 words × 16 bits configuration.
• Single 5 V ± 10% power supply.
• All input and output (I/O) TTL compatible.
• Supports fast page mode, read-modify-write and byte
write.
• Supports output buffer control using early write and
Output Enable (OE) control.
• 8 ms refresh using 512 refresh cycles.
• Supports RAS-only refresh, CAS-before-RAS refresh
and hidden refresh.
• Follows the JEDEC 1 M DRAM (65536 words × 16
bits, 1CAS/2WE) standard.
• RAS access time/column address time/CAS access
time/cycle time/power dissipation
• Package:
SOJ 40-pin (400 mil) plastic package : LC322271J
SOP 40-pin (450 mil) plastic package: LC322271M
TSOP 44-pin (400 mil) plastic package : LC322271T
Package Dimensions
unit: mm
3200-SOJ40
[LC322271J]
SANYO: SOJ40
Parameter
RAS access time
Column address access time
CAS access time
Cycle time
Power dissipation (max.)
During operation
During standby
LC322271J, M, T
-70 -80
70 ns
80 ns
35 ns
45 ns
20 ns
30 ns
130 ns
150 ns
688 mW
633 mW
5.5 mW (CMOS level)/11 mW (TTL level)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
32896HA (OT)/33195TH (OT) No. 5085-1/29
1 page  
LC322271J, M, T-70/80
Continued from preceding page.
Parameter
RAS hold time
CAS hold time
CAS pulse width
RAS to CAS delay time
RAS to column address delay time
CAS to RAS precharge time
CAS precharge time
Row address setup time
Row address hold time
Column address setup time
Column address hold time
Column address hold time referenced to RAS
Column address to RAS lead time
Read command setup time
Read command hold time referenced to CAS
Read command hold time referenced to RAS
Write command hold time
Write command hold time referenced to RAS
Write command pulse width
Write command to RAS lead time
Write command to CAS lead time
Data input setup time
Data input hold time
Data input hold time referenced to RAS
Refresh time
Write command setup time
CAS to UW, LW delay time
RAS to UW, LW delay time
Column address to UW, LW delay time
CAS precharge UW, LW delay time for fast page mode
cycle only
CAS setup time for CAS-before-RAS
CAS hold time for CAS-before-RAS
RAS precharge CAS active time
CAS precharge time for CAS-before-RAS counter test
RAS hold time referenced to OE
OE access time
OE delay time
OE output buffer turn-off delay time
OE command hold time
Data input to CAS delay time
Data input to OE delay time
Masked write setup time
Masked write hold time referenced to RAS
Masked write hold time referenced to CAS
Symbol
tRSH
tCSH
tCAS
tRCD
tRAD
tCRP
tCP
tASR
tRAH
tASC
tCAH
tAR
tRAL
tRCS
tRCH
tRRH
tWCH
tWCR
tWP
tRWL
tCWL
tDS
tDH
tDHR
tREF
tWCS
tCWD
tRWD
tAWD
tCPWD
tCSR
tCHR
tRPC
tCPT
tROH
tOEA
tOED
tOEZ
tOEH
tDZC
tDZO
tMCS
tMRH
tMCH
-70
min max
20
70
20 10000
25 50
17 35
10
10
0
12
0
15
50
40
0
0
0
15
50
15
25
20
0
15
50
8
0
50
100
65
70
10
15
10
40
15
20
15
0
20
0
0
0
0
0
min
30
80
30
25
17
10
10
0
12
0
20
60
45
0
0
0
15
60
15
25
20
0
20
60
0
50
100
65
-80
max
10000
50
35
8
70
10
15
10
40
15
25
15
0 15
20
0
0
0
0
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note
14
15
11
11
12
12
13
13
13
13
13
9
10
16
16
No. 5085-5/29
5 Page 
Write Cycle (OE Control)
LC322271J, M, T-70/80
No. 5085-11/29
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet LC322271T-80.PDF ] | |
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