IDT71028S20YG8 datasheet, PDF - EEWORLD Datasheet

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IDT71028S20YG8: DescriptionStandard SRAM, 256KX4, 20ns, CMOS, PDSO28, 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28; Categorystorage storage; File Size457KB，8 Pages; ManufacturerIDT (Integrated Device Technology)

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IDT71028S20YG8 Overview

Standard SRAM, 256KX4, 20ns, CMOS, PDSO28, 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28

IDT71028S20YG8 Parametric

Parameter Name	Attribute value
Maker	IDT (Integrated Device Technology)
Parts packaging code	SOJ
package instruction	SOJ,
Contacts	28
Reach Compliance Code	unknown
ECCN code	3A991.B.2.B
Maximum access time	20 ns
JESD-30 code	R-PDSO-J28
JESD-609 code	e3
memory density	1048576 bit
Memory IC Type	STANDARD SRAM
memory width	4
Number of functions	1
Number of terminals	28
word count	262144 words
character code	256000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	256KX4
Package body material	PLASTIC/EPOXY
encapsulated code	SOJ
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	PARALLEL
Certification status	Not Qualified
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	MATTE TIN
Terminal form	J BEND
Terminal location	DUAL

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CMOS Static RAM

1 Meg (256K x 4-Bit)

Features

◆

IDT71028

Description

The IDT71028 is a 1,048,576-bit high-speed static RAM orga-

nized as 256K x 4. It is fabricated using IDT’s high-perfomance, high-

reliability CMOS technology. This state-of-the-art technology, com-

bined with innovative circuit design techniques, provides a cost-

effective solution for high-speed memory needs.

The IDT71028 has an output enable pin which operates as fast

as 6ns, with address access times as fast as 12ns. All bidirectional

inputs and outputs of the IDT71028 are TTL-compatible and oper-

ation is from a single 5V supply. Fully static asynchronous circuitry

is used, requiring no clocks or refresh for operation.

The IDT71028 is packaged in a 28-pin 400 mil Plastic SOJ.

◆

256K x 4 advanced high-speed CMOS static RAM

Equal access and cycle times

— Commercial and Industrial: 12/15/20ns

One Chip Select plus one Output Enable pin

Bidirectional data inputs and outputs directly

TTL-compatible

Low power consumption via chip deselect

Available in 400 mil Plastic SOJ package.

Functional Block Diagram

•

ADDRESS

DECODER

•

1,048,576-BIT

MEMORY

ARRAY

I/O

–I/O

I/O CONTROL

CONTROL

LOGIC

2966 drw 01

MARCH 2005

DSC-2966/09

IDT71028S20YG8 Related Products

	IDT71028S20YG8	IDT71028S15YG	IDT71028S12YG	IDT71028S15YGI	IDT71028S12YGI	IDT71028S20YG	IDT71028S20YGI	IDT71028S12YG8	IDT71028S15YG8
Description	Standard SRAM, 256KX4, 20ns, CMOS, PDSO28, 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 15ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 12ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 15ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 12ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 20ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 20ns, CMOS, PDSO28, 0.400 INCH, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 12ns, CMOS, PDSO28, 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28	Standard SRAM, 256KX4, 15ns, CMOS, PDSO28, 0.400 INCH, ROHS COMPLIANT, PLASTIC, SOJ-28
Maker	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
Parts packaging code	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ
package instruction	SOJ,	0.400 INCH, PLASTIC, SOJ-28	0.400 INCH, PLASTIC, SOJ-28	0.400 INCH, PLASTIC, SOJ-28	0.400 INCH, PLASTIC, SOJ-28	0.400 INCH, PLASTIC, SOJ-28	0.400 INCH, PLASTIC, SOJ-28	SOJ,	SOJ,
Contacts	28	28	28	28	28	28	28	28	28
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
ECCN code	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B	3A991.B.2.B
Maximum access time	20 ns	15 ns	12 ns	15 ns	12 ns	20 ns	20 ns	12 ns	15 ns
JESD-30 code	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28	R-PDSO-J28
JESD-609 code	e3	e3	e3	e3	e3	e3	e3	e3	e3
memory density	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit	1048576 bit
Memory IC Type	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	4	4	4	4	4	4	4	4	4
Number of functions	1	1	1	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28	28	28	28
word count	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words
character code	256000	256000	256000	256000	256000	256000	256000	256000	256000
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	70 °C	70 °C	70 °C	85 °C	85 °C	70 °C	85 °C	70 °C	70 °C
organize	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ	SOJ
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL	PARALLEL
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL
Terminal surface	MATTE TIN	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	MATTE TIN	MATTE TIN
Terminal form	J BEND	J BEND	J BEND	J BEND	J BEND	J BEND	J BEND	J BEND	J BEND
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Is it Rohs certified?	-	conform to	conform to	conform to	conform to	conform to	conform to	-	-
I/O type	-	COMMON	COMMON	COMMON	COMMON	COMMON	COMMON	-	-
Humidity sensitivity level	-	3	3	3	3	3	3	-	-
Output characteristics	-	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	-	-
Encapsulate equivalent code	-	SOJ28,.44	SOJ28,.44	SOJ28,.44	SOJ28,.44	SOJ28,.44	SOJ28,.44	-	-
Peak Reflow Temperature (Celsius)	-	260	260	260	260	260	260	-	-
power supply	-	5 V	5 V	5 V	5 V	5 V	5 V	-	-
Maximum standby current	-	0.01 A	0.01 A	0.01 A	0.01 A	0.01 A	0.01 A	-	-
Minimum standby current	-	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	-	-
Maximum slew rate	-	0.15 mA	0.155 mA	0.165 mA	0.17 mA	0.145 mA	0.16 mA	-	-
Terminal pitch	-	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	-
Maximum time at peak reflow temperature	-	30	30	30	30	30	30	-	-
length	-	-	18.415 mm	18.415 mm	18.415 mm	-	18.415 mm	18.415 mm	-
Maximum seat height	-	-	3.683 mm	3.683 mm	3.683 mm	-	3.683 mm	3.683 mm	-
width	-	-	10.16 mm	10.16 mm	10.16 mm	-	10.16 mm	10.16 mm	-

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