IDT72105L25SO8 datasheet, PDF - EEWORLD Datasheet

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IDT72105L25SO8: DescriptionFIFO, 256X16, 25ns, Synchronous, CMOS, PDSO28, SOIC-28; Categorystorage storage; File Size130KB，10 Pages; ManufacturerIDT (Integrated Device Technology)

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IDT72105L25SO8 Overview

FIFO, 256X16, 25ns, Synchronous, CMOS, PDSO28, SOIC-28

IDT72105L25SO8 Parametric

Parameter Name	Attribute value
Maker	IDT (Integrated Device Technology)
Parts packaging code	SOIC
package instruction	SOP,
Contacts	28
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum access time	25 ns
Other features	PORTA/PORTB:PARALLEL/SERIAL
period time	20 ns
JESD-30 code	R-PDSO-G28
JESD-609 code	e0
length	18.3642 mm
memory density	4096 bit
memory width	16
Number of functions	1
Number of terminals	28
word count	256 words
character code	256
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256X16
Output characteristics	3-STATE
Exportable	NO
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	SERIAL
Certification status	Not Qualified
Maximum seat height	3.048 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	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
width	8.763 mm

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CMOS PARALLEL-TO-SERIAL FIFO

256 x 16, 512 x 16, 1,024 x 16

Integrated Device Technology, Inc.

IDT72105

IDT72115

IDT72125

FEATURES:

•

25ns parallel port access time, 35ns cycle time

45MHz serial output shift rate

Wide x16 organization offering easy expansion

Low power consumption (50mA typical)

Least/Most Significant Bit first read selected by asserting

the FL/DIR pin

Four memory status flags: Empty, Full, Half-Full, and

Almost-Empty/Almost-Full

Dual-Port zero fall-through architecture

Available in 28-pin 300 mil plastic DIP and 28-pin SOIC

Industrial temperature range (–40°C to +85°C)

DESCRIPTION:

The IDT72105/72115/72125s are very high-speed, low-

power,dedicated, parallel-to-serial FIFOs. These FIFOs

possess a 16-bit parallel input port and a serial output port with

256, 512 and 1,024 word depths, respectively.

The ability to buffer wide word widths (x16) make these

FIFOs ideal for laser printers, FAX machines, local area

networks (LANs), video storage and disk/tape controller ap-

plications.

Expansion in width and depth can be achieved using

multiple chips. IDT’s unique serial expansion logic makes this

possible using a minimum of pins.

The unique serial output port is driven by one data pin (SO)

and one clock pin (SOCP). The Least Significant or Most

Significant Bit can be read first by programming the DIR pin

after a reset.

Monitoring the FIFO is eased by the availability of four

status flags: Empty, Full, Half-Full and Almost-Empty/Almost-

Full. The Full and Empty flags prevent any FIFO data overflow

or underflow conditions. The Half-Full Flag is available in both

single and expansion mode configurations. The Almost-

Empty/Almost-Full Flag is available only in a single device

mode.

The IDT72105/72115/72125 are fabricated using IDT’s

leading edge, submicron CMOS technology. Military grade

product is manufactured in compliance with the latest revision

of Mil-STD-883, Class B.

FUNCTIONAL BLOCK DIAGRAM

0–15

RESET

LOGIC

WRITE

POINTER

RAM

ARRAY

256 x 16

512 x 16

1,024 x 16

READ

POINTER

RSIX

RSOX

/DIR

SERIAL OUTPUT

LOGIC

EXPANSION

LOGIC

FLAG

LOGIC

SOCP

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

FAST is a trademark of National Semiconductor Co.

2665 drw 01

INDUSTRIAL TEMPERATURE RANGE

For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.

DECEMBER 1999

DSC-2665/-

IDT72105L25SO8 Related Products

	IDT72105L25SO8	IDT72115L25SO8	IDT72105L50SO8	IDT72115L50SO8
Description	FIFO, 256X16, 25ns, Synchronous, CMOS, PDSO28, SOIC-28	FIFO, 512X16, 25ns, Synchronous, CMOS, PDSO28, SOIC-28	FIFO, 256X16, 50ns, Synchronous, CMOS, PDSO28, SOIC-28	FIFO, 512X16, 50ns, Synchronous, CMOS, PDSO28, SOIC-28
Maker	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
Parts packaging code	SOIC	SOIC	SOIC	SOIC
package instruction	SOP,	SOP,	SOP,	SOP,
Contacts	28	28	28	28
Reach Compliance Code	unknown	unknown	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99
Maximum access time	25 ns	25 ns	50 ns	50 ns
Other features	PORTA/PORTB:PARALLEL/SERIAL	PORTA/PORTB:PARALLEL/SERIAL	PORTA/PORTB:PARALLEL/SERIAL	PORTA/PORTB:PARALLEL/SERIAL
period time	20 ns	20 ns	25 ns	25 ns
JESD-30 code	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28
JESD-609 code	e0	e0	e0	e0
length	18.3642 mm	18.3642 mm	18.3642 mm	18.3642 mm
memory density	4096 bit	8192 bit	4096 bit	8192 bit
memory width	16	16	16	16
Number of functions	1	1	1	1
Number of terminals	28	28	28	28
word count	256 words	512 words	256 words	512 words
character code	256	512	256	512
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C
organize	256X16	512X16	256X16	512X16
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE
Exportable	NO	NO	NO	NO
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	SOP	SOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Parallel/Serial	SERIAL	SERIAL	SERIAL	SERIAL
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	3.048 mm	3.048 mm	3.048 mm	3.048 mm
Maximum supply voltage (Vsup)	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
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	TIN LEAD	TIN LEAD	TIN LEAD	TIN LEAD
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
width	8.763 mm	8.763 mm	8.763 mm	8.763 mm

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