AS6C62256A-70PCN datasheet, PDF

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AS6C62256A-70PCN: DescriptionSRAM 256K, 2.7-5.5V, 70ns 32K x 8 Asynch SRAM; Categorystorage storage; File Size594KB，10 Pages; ManufacturerAlliance Memory; Environmental Compliance

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AS6C62256A-70PCN Overview

SRAM 256K, 2.7-5.5V, 70ns 32K x 8 Asynch SRAM

AS6C62256A-70PCN Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Alliance Memory
Parts packaging code	DIP
package instruction	DIP,
Contacts	28
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	6 weeks
Maximum access time	70 ns
JESD-30 code	R-PDIP-T28
memory density	262144 bit
Memory IC Type	STANDARD SRAM
memory width	8
Number of functions	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
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	3.937 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	15.24 mm

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APRIL 2009

AS6C62256A

32K X 8 BIT LOW POWER CMOS SRAM

EATURES



32768x8 bit static CMOS RAM

Access times 70 ns

Common data inputs and data

outputs

Three-state outputs

Typ. operating supply current

70 ns: 50 mA

TTL/CMOS-compatible

Automatical reduction of power

dissipation in long Read Cycles

Power supply voltage 5V + 10%

Operating temperature ranges

0 to 70 °C

-40 to 85 °C

QS 9000 Quality Standard

ESD protection > 2000 V

(MIL STD 883C M3015.7)

Latch-up immunity >100 mA

Packages: PDIP28 (600 mil)

SOP28 (330 mil)

ESCRIPTION

The AS6C62256A is a static RAM

manufactured using a CMOS

process technology with the

following operating modes:

- Read

- Standby

- Write

- Data Retention

The memory array is based on a 6-

transistor cell.

The circuit is activated by the falling

edge of E. The address and control

inputs open simultaneously.

According to the information of W

and G, the data inputs, or outputs,

are active. In a Read cycle, the data

outputs are activated by the falling

edge of G, afterwards the data word

read will be available at the outputs

DQ0-DQ7. After the address

change, the data outputs go High-Z

until the new information read is

available. The data outputs have not

preferred state.

The Read cycle is finished by the

falling edge of W, or by the rising

edge of E, respectively.

Data retention is guaranteed down

to 2 V. With the exception of E, all

inputs consist of NOR gates, so that

no pull-up/pull-down resistors are

required.

ONFIGURATION

ESCRIPTION

APRIL/2009

ALLIANCE MEMORY

PAGE 1 of 10

AS6C62256A-70PCN Related Products

	AS6C62256A-70PCN	AS6C62256A-70PIN	AS6C62256A-70SINTR
Description	SRAM 256K, 2.7-5.5V, 70ns 32K x 8 Asynch SRAM	SRAM 256K, 4.5-5.5V, 70ns 32K x 8 Asynch SRAM	SRAM 256K, 4.5-5.5V, 70ns 32K x 8 Asynch SRAM
Is it lead-free?	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to
Reach Compliance Code	compliant	compliant	compliant
Memory IC Type	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maker	Alliance Memory	Alliance Memory	-
Parts packaging code	DIP	DIP	-
package instruction	DIP,	DIP,	-
Contacts	28	28	-
ECCN code	EAR99	EAR99	-
Factory Lead Time	6 weeks	6 weeks	-
Maximum access time	70 ns	70 ns	-
JESD-30 code	R-PDIP-T28	R-PDIP-T28	-
memory density	262144 bit	262144 bit	-
memory width	8	8	-
Number of functions	1	1	-
Number of terminals	28	28	-
word count	32768 words	32768 words	-
character code	32000	32000	-
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	-
Maximum operating temperature	70 °C	85 °C	-
organize	32KX8	32KX8	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	DIP	DIP	-
Package shape	RECTANGULAR	RECTANGULAR	-
Package form	IN-LINE	IN-LINE	-
Parallel/Serial	PARALLEL	PARALLEL	-
Certification status	Not Qualified	Not Qualified	-
Maximum seat height	3.937 mm	3.937 mm	-
Maximum supply voltage (Vsup)	5.5 V	5.5 V	-
Minimum supply voltage (Vsup)	4.5 V	4.5 V	-
Nominal supply voltage (Vsup)	5 V	5 V	-
surface mount	NO	NO	-
technology	CMOS	CMOS	-
Temperature level	COMMERCIAL	INDUSTRIAL	-
Terminal form	THROUGH-HOLE	THROUGH-HOLE	-
Terminal pitch	2.54 mm	2.54 mm	-
Terminal location	DUAL	DUAL	-
width	15.24 mm	15.24 mm	-
Base Number Matches	-	1	1

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