LC35V256EM datasheet, PDF - EEWORLD Datasheet

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LC35V256EM: Description256K (32K words x 8 bits) SRAM Control pins: OE and CE; File Size38KB，6 Pages; ManufacturerSANYO; Websitehttp://www.semic.sanyo.co.jp/english/index-e.html

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LC35V256EM Overview

256K (32K words x 8 bits) SRAM Control pins: OE and CE

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Ordering number : ENN6304

CMOS IC

LC35W256EM, ET-10W

256K (32K words

8 bits) SRAM

Control pins: OE and CE

Overview

The LC35W256EM-10W and LC35W256ET-10W are

asynchronous silicon-gate CMOS SRAMs with a 32768-

word by 8-bit structure. These are full-CMOS devices

with 6 transistors per memory cell, and feature ultralow-

voltage operation, a low operating current drain, and an

ultralow standby current. Control inputs include OE for

fast memory access and CE for power saving and device

selection. This makes these devices optimal for systems

that require low power or battery backup, and makes

memory expansion easy. The ultralow standby current

allows these devices to be used with capacitor backup as

well.

Package Dimensions

unit: mm

3187A-SOP28D

[LC35W256EM-10W]

0.15

18.0

Features

• Supply voltage range: 2.7 to 3.6 V

• Access time: 100 ns (maximum)

• Standby current: 0.8 µA (Ta

≤

60°C)

4.0 µA (Ta

≤

70°C)

• Operating temperature: –10 to +70°C

• Data retention voltage: 2.0 to 3.6 V

• All I/O levels: CMOS compatible (0.8 V

, 0.2 V

)

• Input/output shared function pins, 3-state output pins

• No clock required (fully static circuits)

• Package

28-pin SOP (450 mil) plastic package:

LC35W256EM-10W

28-pin TSOP (8

13.4 mm) plastic package:

LC35W256ET-10W

0.4

1.27

0.1

2.3

SANYO: SOP28D

unit: mm

3221-TSOP28 (Type I)

[LC35W256ET-10W]

11.8

1.27max

28 1

0.55

8.1

0.2

0.125

0.08

SANYO: TSOP28 (Type I)

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

12800RM (OT) No. 6304-1/6

0.5

13.4

1.0

11.8

9.8

8.4

LC35V256EM Related Products

	LC35V256EM	LC35W256EM-10W	LC35W256EM	LC35W256ET-10W	LC35V256EM-70W	LC35V256ET-70W
Description	256K (32K words x 8 bits) SRAM Control pins: OE and CE	256K (32K words x 8 bits) SRAM Control pins: OE and CE	256K (32K words x 8 bits) SRAM Control pins: OE and CE	256K (32K words x 8 bits) SRAM Control pins: OE and CE	Standard SRAM, 32KX8, 70ns, CMOS, PDSO28, 0.450 INCH, PLASTIC, SOP-28	256K (32K words x 8 bits) SRAM Control pins: OE and CE
Parts packaging code	-	SOIC	-	TSOP	SOIC	TSOP
package instruction	-	SOP, SOP28,.45	-	TSOP1, TSSOP28,.53,22	SOP, SOP28,.45	TSOP1, TSSOP28,.53,22
Contacts	-	28	-	28	28	28
Reach Compliance Code	-	unknow	-	unknow	unknown	unknow
ECCN code	-	EAR99	-	EAR99	EAR99	EAR99
Maximum access time	-	100 ns	-	100 ns	70 ns	70 ns
I/O type	-	COMMON	-	COMMON	COMMON	COMMON
JESD-30 code	-	R-PDSO-G28	-	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28
length	-	18 mm	-	11.8 mm	18 mm	11.8 mm
memory density	-	262144 bi	-	262144 bi	262144 bit	262144 bi
Memory IC Type	-	STANDARD SRAM	-	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	-	8	-	8	8	8
Number of functions	-	1	-	1	1	1
Number of terminals	-	28	-	28	28	28
word count	-	32768 words	-	32768 words	32768 words	32768 words
character code	-	32000	-	32000	32000	32000
Operating mode	-	ASYNCHRONOUS	-	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	-	70 °C	-	70 °C	70 °C	70 °C
Minimum operating temperature	-	-10 °C	-	-10 °C	-10 °C	-10 °C
organize	-	32KX8	-	32KX8	32KX8	32KX8
Output characteristics	-	3-STATE	-	3-STATE	3-STATE	3-STATE
Package body material	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	SOP	-	TSOP1	SOP	TSOP1
Encapsulate equivalent code	-	SOP28,.45	-	TSSOP28,.53,22	SOP28,.45	TSSOP28,.53,22
Package shape	-	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE	-	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	-	PARALLEL	-	PARALLEL	PARALLEL	PARALLEL
power supply	-	3/3.3 V	-	3/3.3 V	3.3 V	3.3 V
Certification status	-	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified
Minimum standby current	-	2 V	-	2 V	2 V	2 V
Maximum slew rate	-	0.018 mA	-	0.018 mA	0.025 mA	0.025 mA
Maximum supply voltage (Vsup)	-	3.6 V	-	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	-	2.7 V	-	2.7 V	3 V	3 V
Nominal supply voltage (Vsup)	-	3 V	-	3 V	3.3 V	3.3 V
surface mount	-	YES	-	YES	YES	YES
technology	-	CMOS	-	CMOS	CMOS	CMOS
Temperature level	-	COMMERCIAL	-	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	-	GULL WING	-	GULL WING	GULL WING	GULL WING
Terminal pitch	-	1.27 mm	-	0.55 mm	1.27 mm	0.55 mm
Terminal location	-	DUAL	-	DUAL	DUAL	DUAL
width	-	8.4 mm	-	8 mm	8.4 mm	8 mm

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