MSM51V8221A-30JS datasheet, PDF

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MSM51V8221A-30JS: DescriptionMemory Circuit, 256KX8, CMOS, PDSO28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, SOJ-28; Categorystorage storage; File Size222KB，18 Pages; ManufacturerLAPIS Semiconductor Co., Ltd.

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MSM51V8221A-30JS Overview

Memory Circuit, 256KX8, CMOS, PDSO28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, SOJ-28

MSM51V8221A-30JS Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	LAPIS Semiconductor Co., Ltd.
Parts packaging code	SOJ
package instruction	SOJ, SOJ28,.44
Contacts	28
Reach Compliance Code	unknown
JESD-30 code	R-PDSO-J28
JESD-609 code	e0
length	18.41 mm
memory density	2097152 bit
Memory IC Type	MEMORY CIRCUIT
memory width	8
Number of functions	1
Number of terminals	28
word count	262144 words
character code	256000
Operating mode	SYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	256KX8
Package body material	PLASTIC/EPOXY
encapsulated code	SOJ
Encapsulate equivalent code	SOJ28,.44
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	3.3 V
Certification status	Not Qualified
Maximum seat height	3.75 mm
Maximum standby current	0.003 A
Maximum slew rate	0.035 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	NOT SPECIFIED
width	10.16 mm

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Dear customers,

About the change in the name such as "Oki Electric Industry Co. Ltd." and

"OKI" in documents to OKI Semiconductor Co., Ltd.

The semiconductor business of Oki Electric Industry Co., Ltd. was succeeded to OKI

Semiconductor Co., Ltd. on October 1, 2008.

Therefore, please accept that although

the terms and marks of "Oki Electric Industry Co., Ltd.", “Oki Electric”, and "OKI"

remain in the documents, they all have been changed to "OKI Semiconductor Co., Ltd.".

It is a change of the company name, the company trademark, and the logo, etc. , and

NOT a content change in documents.

October 1, 2008

OKI Semiconductor Co., Ltd.

550-1 Higashiasakawa-cho, Hachioji-shi, Tokyo 193-8550, Japan

http://www.okisemi.com/en/

E2L0054-28-Z2

¡ Semiconductor

MSM51V8221A

262,214-Word

8-Bit Field Memory

This version: Dec. 1998

MSM51V8221A

Previous version: Mar. 1998

DESCRIPTION

The OKI MSM51V8221A is a high performance 2-Mbit, 256K

8-bit, Field Memory. It is designed

for high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital

movies and Multi-media systems. It is a FRAM for wide or low end use as general commodity

TVs and VTRs, exclusively. The MSM51V8221A is not designed for the other use or high end

use in medical systems, professional graphics systems which require long term picture, and

data storage systems and others. The 2-Mbit capacity fits one field of a conventional NTSC TV

screen.

Each of the 8-bit planes has separate serial write and read ports. These employ independent control

clocks to support asynchronous read and write operations. Different clock rates are also supported,

which allow alternate data rates between write and read data streams.

The MSM51V8221A provides high speed FIFO, First-In First-Out, operation without external

refreshing: it refreshes its DRAM storage cells automatically, so that it appears fully static to the users.

Moreover, fully static type memory cells and decoders for serial access enable the refresh free serial

access operation, so that serial read and/or write control clock can be halted high or low for any

duration as long as the power is on. Internal conflicts of memory access and refreshing operations

are prevented by special arbitration logic.

The MSM51V8221A's function is simple, and similar to a digital delay device whose delay-bit-length

is easily set by reset timing. The delay length, and the number of read delay clocks between write

and read, is determined by externally controlled write and read reset timings.

Additional SRAM serial registers, or line buffers for the initial access of 256

8-bit enable high speed

first-bit-access with no clock delay just after the write or read reset timings.

The MSM51V8221A is similar in operation and functionality to OKI 1-Mbit Field Memory

MSM51V4221C. It has a write mask function or input enable function (IE), and read-data skipping

function or output enable function (OE). The differences between write enable (WE) and input

enable (IE), and between read enable (RE) and output enable (OE) are that WE and RE can stop serial

write/read address increments, but IE and OE cannot stop the increment, when write/read clocking

is continuously applied to MSM51V8221A. The input enable (IE) function allows the user to write

into selected locations of the memory only, leaving the rest of the memory contents unchanged. This

facilitates data processing to display a "picture in picture" on a TV screen.

1/16

MSM51V8221A-30JS Related Products

	MSM51V8221A-30JS	MSM51V8221A-30GS-K	MSM51V8221A-40GS-K	MSM51V8221A-30ZS	MSM51V8221A-40JS	MSM51V8221A-40ZS	MSM51V8221A-35GS-K
Description	Memory Circuit, 256KX8, CMOS, PDSO28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, SOJ-28	Memory Circuit, 256KX8, CMOS, PDSO28, 0.430 INCH, 1.27 MM PITCH, PLASTIC, SOP-28	Memory Circuit, 256KX8, CMOS, PDSO28, 0.430 INCH, 1.27 MM PITCH, PLASTIC, SOP-28	Memory Circuit, 256KX8, CMOS, PZIP28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, ZIP-28	Memory Circuit, 256KX8, CMOS, PDSO28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, SOJ-28	Memory Circuit, 256KX8, CMOS, PZIP28, 0.400 INCH, 1.27 MM PITCH, PLASTIC, ZIP-28	Memory IC
Maker	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.	LAPIS Semiconductor Co., Ltd.
package instruction	SOJ, SOJ28,.44	SOP, SOP28,.45	SOP, SOP28,.45	ZIP, ZIP28,.1	SOJ, SOJ28,.44	ZIP, ZIP28,.1	,
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	-
Parts packaging code	SOJ	SOIC	SOIC	ZIP	SOJ	ZIP	-
Contacts	28	28	28	28	28	28	-
JESD-30 code	R-PDSO-J28	R-PDSO-G28	R-PDSO-G28	R-PZIP-T28	R-PDSO-J28	R-PZIP-T28	-
JESD-609 code	e0	e0	e0	e0	e0	e0	-
length	18.41 mm	18.5 mm	18.5 mm	36 mm	18.41 mm	36 mm	-
memory density	2097152 bit	2097152 bit	2097152 bit	2097152 bit	2097152 bit	2097152 bit	-
Memory IC Type	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	-
memory width	8	8	8	8	8	8	-
Number of functions	1	1	1	1	1	1	-
Number of terminals	28	28	28	28	28	28	-
word count	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	-
character code	256000	256000	256000	256000	256000	256000	-
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	-
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	-
organize	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	SOJ	SOP	SOP	ZIP	SOJ	ZIP	-
Encapsulate equivalent code	SOJ28,.44	SOP28,.45	SOP28,.45	ZIP28,.1	SOJ28,.44	ZIP28,.1	-
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	IN-LINE	-
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	-
power supply	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	-
Maximum seat height	3.75 mm	2.5 mm	2.5 mm	10.16 mm	3.75 mm	10.16 mm	-
Maximum standby current	0.003 A	0.003 A	0.003 A	0.003 A	0.003 A	0.003 A	-
Maximum slew rate	0.035 mA	0.035 mA	0.035 mA	0.035 mA	0.035 mA	0.035 mA	-
Maximum supply voltage (Vsup)	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	-
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	-
surface mount	YES	YES	YES	NO	YES	NO	-
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	-
Temperature level	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)	-
Terminal form	J BEND	GULL WING	GULL WING	THROUGH-HOLE	J BEND	THROUGH-HOLE	-
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	-
Terminal location	DUAL	DUAL	DUAL	ZIG-ZAG	DUAL	ZIG-ZAG	-
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	-
width	10.16 mm	8.8 mm	8.8 mm	2.8 mm	10.16 mm	2.8 mm	-

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