IDT72142S80P datasheet, PDF - EEWORLD Datasheet

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IDT72142S80P: DescriptionFIFO, 4KX9, 80ns, Asynchronous, CMOS, PDIP28, 0.600 INCH, PLASTIC, DIP-28; Categorystorage storage; File Size121KB，11 Pages; ManufacturerIDT (Integrated Device Technology)

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IDT72142S80P Overview

FIFO, 4KX9, 80ns, Asynchronous, CMOS, PDIP28, 0.600 INCH, PLASTIC, DIP-28

IDT72142S80P Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	DIP
package instruction	0.600 INCH, PLASTIC, DIP-28
Contacts	28
Reach Compliance Code	not_compliant
ECCN code	EAR99
Is Samacsys	N
Maximum access time	80 ns
Other features	RETRANSMIT
Maximum clock frequency (fCLK)	10 MHz
period time	100 ns
JESD-30 code	R-PDIP-T28
JESD-609 code	e0
memory density	36864 bit
Memory IC Type	OTHER FIFO
memory width	9
Humidity sensitivity level	1
Number of functions	1
Number of terminals	28
word count	4096 words
character code	4000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	4KX9
Output characteristics	3-STATE
Exportable	YES
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP28,.6
Package shape	RECTANGULAR
Package form	IN-LINE
Parallel/Serial	PARALLEL
power supply	5 V
Certification status	Not Qualified
Maximum standby current	0.008 A
Maximum slew rate	0.14 mA
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 surface	Tin/Lead (Sn85Pb15)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Base Number Matches	1

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CMOS SERIAL-TO-PARALLEL FIFO

2,048 x 9 and 4,096 x 9

Integrated Device Technology, Inc.

IDT72132

IDT72142

FEATURES:

• 35ns parallel-port access time, 45ns cycle time

• 50MHz serial port shift rate

• Expandable in depth and width with no external

components

• Programmable word lengths including 8, 9, 16-18, and

32-36 bit using Flexshift™ serial input without using any

additional components

• Multiple status flags: Full, Almost-Full (1/8 from full),

Half-Full, Almost Empty (1/8 from empty), and Empty

• Asynchronous and simultaneous read and write

operations

• Dual-Port zero fall-through architecture

• Retransmit capability in single device mode

• Produced with high-performance, low-power CMOS

technology

• Available in the 28-pin plastic DIP

• Industrial temperature range (–40

C to +85

DESCRIPTION:

The IDT72132/72142 are high-speed, low-power serial-to-

parallel FIFOs. These FIFOs are ideally suited to serial

communications applications, tape/disk controllers, and local

area networks (LANs). These devices can be configured with

the IDTs parallel-to-serial FIFOs (IDT72131/72141) for bidi-

rectional serial data buffering.

The FIFO has a serial input port and a 9-bit parallel output

port. Wider and deeper serial-to-parallel data buffers can be

built using multiple IDT72132/72142 chips. IDTs unique

Flexshift serial expansion logic (SIX,

) makes width

expansion possible with no additional components. These

FIFOs will expand to a variety of word widths including 8, 9, 16,

and 32 bits. These devices can also be directly connected for

depth expansion.

Five flags are provided to monitor the FIFO. The Full and

Empty flags prevent any FIFO data overflow or underflow

conditions. The Almost-Full (7/8), Half-Full, and Almost-Empty

(1/8) flags signal memory utilization within the FIFO.

The IDT72132/72142 is fabricated using IDTs high-speed

submicron CMOS technology.

FUNCTIONAL BLOCK DIAGRAM

SICP

SIX

PIN CONFIGURATION

Vcc

SERIAL INPUT

CIRCUITRY

FLAG

LOGIC

GND

NEXT WRITE

POINTER

RAM ARRAY

2,048 x 9

4,096 x 9

READ

POINTER

GND

SICP

SIX

RESET

LOGIC

GND

EXPANSION

LOGIC

-Q

2752 drw 01

2752 drw 02

PLASTIC DIP (P28-1, order code: P)

TOP VIEW

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

INDUSTRIAL TEMPERATURE RANGE

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

OCTOBER 1999

DSC-2752/-

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