AS7C3256L-20JC datasheet, PDF - EEWORLD Datasheet

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AS7C3256L-20JC: DescriptionStandard SRAM, 32KX8, 20ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28; Categorystorage storage; File Size219KB，8 Pages; ManufacturerALSC [Alliance Semiconductor Corporation]

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AS7C3256L-20JC Overview

Standard SRAM, 32KX8, 20ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28

AS7C3256L-20JC Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	ALSC [Alliance Semiconductor Corporation]
Parts packaging code	SOJ
package instruction	SOJ, SOJ28,.34
Contacts	28
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum access time	20 ns
I/O type	COMMON
JESD-30 code	R-PDSO-J28
JESD-609 code	e0
memory density	262144 bit
Memory IC Type	STANDARD SRAM
memory width	8
Number of functions	1
Number of ports	1
Number of terminals	28
word count	32768 words
character code	32000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	32KX8
Output characteristics	3-STATE
Exportable	YES
Package body material	PLASTIC/EPOXY
encapsulated code	SOJ
Encapsulate equivalent code	SOJ28,.34
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	225
power supply	3.3 V
Certification status	Not Qualified
Maximum standby current	0.00015 A
Minimum standby current	2 V
Maximum slew rate	0.045 mA
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	J BEND
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30

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High Performance

32K×8 3.3V

CMOS SRAM

AS7C3256

AS7C3256L

Low voltage 32K×8 CMOS SRAM

Features

• Organization: 32,768 words × 8 bits

• Single 3.3 ± 0.3V power supply

• 5V tolerant I/O specification

• High speed

- 10/12/15/20 ns address access time

- 3/3/4/5 ns output enable access time

• Very low power consumption

- Active: 216 mW max, 10 ns cycle

- Standby: 3.6 mW max, CMOS I/O

1.1 mW max, CMOS I/O, L version

• 2.0V data retention

• Equal access and cycle times

• Easy memory expansion with CE and OE inputs

• TTL-compatible, three-state I/O

• Ideal for cache, modem, portable computing

- 75% power reduction during CPU idle mode

• 28-pin JEDEC standard packages

- 300 mil PDIP and SOJ

- 8

13.4 TSOP

• ESD protection

≥

2000 volts

• Latch-up current

≥

200 mA

Logic block diagram

Vcc

GND

Input buffer

Pin arrangement

TSOP 8×13.4

A10

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

DIP, SOJ

A14

Row decoder

ARRAY

(262,144)

I/O0

A A A A A A A

7 8 9 10 11 12 13

Selection guide

Maximum address access time

Maximum output enable access time

Maximum operating current

Maximum CMOS standby current

Shaded areas contain advance information.

7C3256-10

1.0

0.3

7C3256-12

1.0

0.3

A11

A13

Vcc

A14

A12

Column decoder

Control

circuit

7C3256-15

1.0

0.3

7C3256-20

1.0

0.3

AS7C3256

256×128×8

Sense amp

AS7C3256

I/O7

A14

A12

I/O0

I/O1

I/O2

GND

Vcc

A13

A11

A10

I/O7

I/O6

I/O5

I/O4

I/O3

Unit

ALLIANCE SEMICONDUCTOR

AS7C3256L-20JC Related Products

	AS7C3256L-20JC	AS7C3256L-10JC	AS7C3256L-10TC	AS7C3256L-12TC	AS7C3256L-20TC	AS7C3256L-15JC	AS7C3256L-12JC
Description	Standard SRAM, 32KX8, 20ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28	Standard SRAM, 32KX8, 10ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28	Standard SRAM, 32KX8, 10ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28	Standard SRAM, 32KX8, 12ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28	Standard SRAM, 32KX8, 20ns, CMOS, PDSO28, 8 X 13.40 MM, TSOP1-28	Standard SRAM, 32KX8, 15ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28	Standard SRAM, 32KX8, 12ns, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible
Parts packaging code	SOJ	SOJ	TSOP	TSOP	TSOP	SOJ	SOJ
package instruction	SOJ, SOJ28,.34	SOJ, SOJ28,.34	SOP, TSSOP28,.53,22	SOP, TSSOP28,.53,22	SOP, TSSOP28,.53,22	SOJ, SOJ28,.34	SOJ, SOJ28,.34
Contacts	28	28	28	28	28	28	28
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Maximum access time	20 ns	10 ns	10 ns	12 ns	20 ns	15 ns	12 ns
I/O type	COMMON	COMMON	COMMON	COMMON	COMMON	COMMON	COMMON
JESD-30 code	R-PDSO-J28	R-PDSO-J28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-J28	R-PDSO-J28
JESD-609 code	e0	e0	e0	e0	e0	e0	e0
memory density	262144 bit	262144 bit	262144 bit	262144 bit	262144 bit	262144 bit	262144 bit
Memory IC Type	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	8	8	8	8	8	8	8
Number of functions	1	1	1	1	1	1	1
Number of ports	1	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28	28
word count	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words	32768 words
character code	32000	32000	32000	32000	32000	32000	32000
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C
organize	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8	32KX8
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE
Exportable	YES	YES	YES	YES	YES	YES	YES
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOJ	SOJ	SOP	SOP	SOP	SOJ	SOJ
Encapsulate equivalent code	SOJ28,.34	SOJ28,.34	TSSOP28,.53,22	TSSOP28,.53,22	TSSOP28,.53,22	SOJ28,.34	SOJ28,.34
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL
power supply	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum standby current	0.00015 A	0.00015 A	0.00015 A	0.00015 A	0.00015 A	0.00015 A	0.00015 A
Minimum standby current	2 V	2 V	2 V	2 V	2 V	2 V	2 V
Maximum slew rate	0.045 mA	0.06 mA	0.06 mA	0.055 mA	0.045 mA	0.05 mA	0.055 mA
Maximum supply voltage (Vsup)	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	3 V	3 V	3 V	3 V	3 V	3 V	3 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	J BEND	J BEND	GULL WING	GULL WING	GULL WING	J BEND	J BEND
Terminal pitch	1.27 mm	1.27 mm	0.55 mm	0.55 mm	0.55 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Is it lead-free?	Contains lead	-	-	Contains lead	Contains lead	Contains lead	Contains lead
Maker	ALSC [Alliance Semiconductor Corporation]	ALSC [Alliance Semiconductor Corporation]	ALSC [Alliance Semiconductor Corporation]	-	ALSC [Alliance Semiconductor Corporation]	-	ALSC [Alliance Semiconductor Corporation]
Peak Reflow Temperature (Celsius)	225	-	-	225	240	225	225
Maximum time at peak reflow temperature	30	-	-	30	30	30	30
Base Number Matches	-	1	1	1	1	1	-

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