LH52256CN-70LL Sharp Microelectronics, LH52256CN-70LL Datasheet

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LH52256CN-70LL

Manufacturer Part Number
LH52256CN-70LL
Description
IC SRAM 256KBIT 70NS 28SOP
Manufacturer
Sharp Microelectronics
Datasheet

Specifications of LH52256CN-70LL

Rohs Status
RoHS non-compliant
Format - Memory
RAM
Memory Type
SRAM
Memory Size
256K (32K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOP
Other names
425-1834-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LH52256CN-70LL
Manufacturer:
SHARP
Quantity:
4 420
Part Number:
LH52256CN-70LL
Manufacturer:
SHARP
Quantity:
20 000
LH52256C/CH
FEATURES
DESCRIPTION
32,768
mode. It is fabricated using silicon-gate CMOS process
technology.
The LH52256C is a Static RAM organized as
32,768
Access time: 70 ns (MAX.)
Supply current:
Data retention current: 1.0 A (MAX.)
Wide operating voltage range:
Operating temperature:
Fully-static operation
Three-state outputs
Not designed or rated as radiation
hardened
Package:
N-type bulk silicon
Operating: 45 mA (MAX.)
Standby: 40 A (MAX.)
Commerical temperature 0 C to +70 C
Industrial temperature -40° to +85°C
28-pin, 600-mil DIP
28-pin, 450-mil SOP
28-pin, 300-mil SK-DIP
28-pin, 8
10 mA (MAX.) (t
(V
4.5 V
8 bits which provides low-power standby
CCDR
8 bit organization
= 3 V, T
5.5 V
3 mm
2
A
RC
TSOP (Type I)
= 25 C)
, t
WC
= 1 s)
PIN CONNECTIONS
28-PIN DIP
28-PIN SK-DIP
28-PIN SOP
28-PIN TSOP (Type I)
NOTE: Reverse bend available on request.
V
WE
A
A
A
OE
A
A
A
CC
A
A
A
A
A
Figure 2. TSOP (Type I) Pin Connections
13
14
12
11
8
7
5
4
3
9
6
CMOS 256K (32K
10
12
13
14
11
2
3
4
5
6
7
8
9
1
Figure 1. Pin Connections
GND
I/O
I/O
I/O
A
A
A
A
A
A
A
A
A
A
14
12
7
6
4
2
3
5
3
0
2
1
1
10
12
13
14
11
2
3
4
5
6
7
8
9
1
28
26
19
18
17
16
15
27
25
24
23
22
20
21
8) Static RAM
A
CE
I/O
I/O
I/O
I/O
I/O
V
WE
A
A
A
OE
A
CC
13
11
10
8
9
7
5
4
8
6
16
28
27
26
25
24
23
22
20
19
18
17
15
21
TOP VIEW
A
CE
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
A
A
A
52256C-1
52256C-8
10
0
1
2
8
3
2
1
7
6
5
4
1

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LH52256CN-70LL Summary of contents

Page 1

LH52256C/CH FEATURES 32,768 8 bit organization Access time (MAX.) Supply current: Operating (MAX (MAX Standby (MAX.) Data retention current: 1.0 A (MAX ...

Page 2

... ROW DECORDER PIN DESCRIPTION SIGNAL PIN NAME Address inputs 0 14 Chip enable CE Write enable WE OE Output enable 2 MEMORY ARRAY (512 x 512) 8 COLUMN I/O CIRCUIT OUTPUT BUFFERS 8 COLUMN DECODER INPUT DATA CONTROL Figure 3. LH52256C Block Diagram SIGNAL I GND CMOS 256K (32K ...

Page 3

CMOS 256K (32K 8) Static RAM TRUTH TABLE MODE Standby Read Output disable Write NOTE Don’t care Low ...

Page 4

LH52256C/CH DC ELECTRICAL CHARACTERISTICS (T PARAMETER SYMBOL Input leakage I LI current Output leakage I LO current Minimum cycle Operating supply current CC1 I SB Standby current I SB1 V OL Output voltage V ...

Page 5

CMOS 256K (32K 8) Static RAM WRITE CYCLE ( + PARAMETER SYMBOL Write cycle time CE Low to end of write Address valid to end of write Address setup time Write pulse width ...

Page 6

LH52256C/CH ADDRESS OUT NOTE HIGH for Read Cycle. 6 CMOS 256K (32K ACE OLZ DATA VALID Figure 4. Read Cycle 8) Static RAM t HZ ...

Page 7

CMOS 256K (32K 8) Static RAM ADDRESS (NOTE 6) D OUT D IN NOTES write occurs during the overlap of a LOW CE, and a LOW WE. A write begins at the latest transition among ...

Page 8

LH52256C/CH ADDRESS OUT D IN NOTES write occurs during the overlap of a LOW CE, and a LOW WE. A write begins at the latest transition among CE going LOW, and WE going LOW. A ...

Page 9

CMOS 256K (32K 8) Static RAM PACKAGE DIAGRAMS 28DIP (DIP028-P-0600 36.30 [1.429] 35.70 [1.406] 2.54 [0.100] 0.60 [0.024] TYP. 0.40 [0.016] MAXIMUM LIMIT DIMENSIONS IN MM [INCHES] MINIMUM LIMIT 28SOP (SOP028-P-0450) 1.27 [0.050] TYP. 0.50 [0.020] 0.30 [0.012] ...

Page 10

LH52256C/CH 28SDIP (SDIP28-P-400 25.75 [1.014] 25.25 [0.994] 1.78 [0.070] TYP. 0.56 [0.022] 0.36 [0.014] MAXIMUM LIMIT DIMENSIONS IN MM [INCHES] MINIMUM LIMIT 28TSOP (TSOP028-P-0813) 0.28 [0.011] 0.55 [0.022] 0.12 [0.005] TYP 8.20 [0.323] 7.80 [0.307] MAXIMUM ...

Page 11

CMOS 256K (32K 8) Static RAM ORDERING INFORMATION LH52256C X X Device Type Operating Package Temp Example: LH52256C-70LL (CMOS 32K x 8 Static RAM, Low-Low-power standby, 70 ns, 28-pin, 600-mil DIP Speed Power Low-Low-power standby 70 Access ...

Page 12

... SHARP Microelectronics of the Americas 5700 NW Pacific Rim Blvd. Camas, WA 98607, U.S.A. Phone: (360) 834-2500 Fax: (360) 834-8903 http://www.sharpsma.com EUROPE SHARP Microelectronics Europe Sonninstraße 3 20097 Hamburg, Germany Phone: (49) 40 2376-2286 Fax: (49) 40 2376-2232 http://www.sharpsme.com ASIA SHARP Corporation Integrated Circuits Group ...

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