MSM514221B-40JS datasheet, PDF

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MSM514221B-40JS: Description262,263-Word x 4-Bit Field Memory; Categorystorage storage; File Size146KB，15 Pages; ManufacturerOKI; Websitehttp://www.oki.com

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MSM514221B-40JS Overview

262,263-Word x 4-Bit Field Memory

MSM514221B-40JS Parametric

Parameter Name	Attribute value
Maker	OKI
Parts packaging code	SOJ
package instruction	SOJ,
Contacts	20
Reach Compliance Code	unknow
Other features	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH
JESD-30 code	R-PDSO-J20
length	17.15 mm
memory density	1048576 bi
Memory IC Type	MEMORY CIRCUIT
memory width	4
Number of functions	1
Number of terminals	20
word count	262144 words
character code	256000
Operating mode	SYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	256KX4
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	SOJ
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Certification status	Not Qualified
Maximum seat height	3.55 mm
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 form	J BEND
Terminal pitch	1.27 mm
Terminal location	DUAL
width	7.62 mm

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E2L0029-17-Y1

¡ Semiconductor

MSM514221B

¡ Semiconductor

262,263-Word

4-Bit Field Memory

This version: Jan. 1998

MSM514221B

Previous version: Dec. 1996

DESCRIRTION

The OKI MSM514221B is a high performance 1-Mbit, 256K

4-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 MSM514221B 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 1-Mbit capacity fits one field of a conventional NTSC TV screen.

Each of the 4-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 that allow alternate data rates between write and read data streams.

The MSM514221B 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 refresh free serial

access operation, so that the 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 MSM514221B's function is simple, and similar to a digital delay device whose delay-bit-

length is easily set by reset timing. The delay length, 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

4-bit enable high

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

The MSM514221B is similar in operation and functionality to OKI 2-Mbit Field Memory

MSM518221.

1/15

MSM514221B-40JS Related Products

	MSM514221B-40JS	MSM514221B-30JS	MSM514221B-30RS	MSM514221B-30ZS	MSM514221B-40RS	MSM514221B-40ZS	MSM514221B-60JS	MSM514221B-60RS	MSM514221B-60ZS	MSM514221B
Description	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory	262,263-Word x 4-Bit Field Memory
Maker	OKI	OKI	-	OKI	OKI	OKI	OKI	OKI	OKI	-
Parts packaging code	SOJ	SOJ	DIP	ZIP	DIP	ZIP	SOJ	DIP	ZIP	-
package instruction	SOJ,	SOJ,	DIP,	DIP,	DIP,	DIP,	SOJ,	DIP,	DIP,	-
Contacts	20	20	16	20	16	20	20	16	20	-
Reach Compliance Code	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow	unknow	-
Other features	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	INTERNAL 4 X 512 ROWS X 512 COLUMNS OF DRAM CELLS; SELF REFRESH	-
JESD-30 code	R-PDSO-J20	R-PDSO-J20	R-PDIP-T16	R-PZIP-T20	R-PDIP-T16	R-PZIP-T20	R-PDSO-J20	R-PDIP-T16	R-PZIP-T20	-
length	17.15 mm	17.15 mm	19.05 mm	25.5 mm	19.05 mm	25.5 mm	17.15 mm	19.05 mm	25.5 mm	-
memory density	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	1048576 bi	-
Memory IC Type	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	MEMORY CIRCUIT	-
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	20	20	16	20	16	20	20	16	20	-
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	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	-
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C	-
organize	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	256KX4	-
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	-
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	DIP	DIP	DIP	DIP	SOJ	DIP	DIP	-
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	SMALL OUTLINE	SMALL OUTLINE	IN-LINE	IN-LINE	IN-LINE	IN-LINE	SMALL OUTLINE	IN-LINE	IN-LINE	-
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-
Maximum seat height	3.55 mm	3.55 mm	5.08 mm	10.16 mm	5.08 mm	10.16 mm	3.55 mm	5.08 mm	10.16 mm	-
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	NO	NO	NO	NO	YES	NO	NO	-
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	-
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	-
Terminal form	J BEND	J BEND	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	J BEND	THROUGH-HOLE	THROUGH-HOLE	-
Terminal pitch	1.27 mm	1.27 mm	2.54 mm	1.27 mm	2.54 mm	1.27 mm	1.27 mm	2.54 mm	1.27 mm	-
Terminal location	DUAL	DUAL	DUAL	ZIG-ZAG	DUAL	ZIG-ZAG	DUAL	DUAL	ZIG-ZAG	-
width	7.62 mm	7.62 mm	7.62 mm	2.8 mm	7.62 mm	2.8 mm	7.62 mm	7.62 mm	2.8 mm	-

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