IDT72615L25PFI datasheet, PDF - EEWORLD Datasheet

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IDT72615L25PFI: DescriptionBi-Directional FIFO, 1KX18, 15ns, Synchronous, CMOS, PQFP64, TQFP-64; Categorystorage storage; File Size130KB，16 Pages; ManufacturerIDT (Integrated Device Technology)

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IDT72615L25PFI Overview

Bi-Directional FIFO, 1KX18, 15ns, Synchronous, CMOS, PQFP64, TQFP-64

IDT72615L25PFI Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	QFP
package instruction	LQFP, QFP64,.66SQ,32
Contacts	64
Reach Compliance Code	not_compliant
ECCN code	EAR99
Maximum access time	15 ns
Maximum clock frequency (fCLK)	40 MHz
period time	25 ns
JESD-30 code	S-PQFP-G64
JESD-609 code	e0
length	14 mm
memory density	18432 bit
Memory IC Type	BI-DIRECTIONAL FIFO
memory width	18
Humidity sensitivity level	3
Number of functions	1
Number of terminals	64
word count	1024 words
character code	1000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	1KX18
Exportable	YES
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Encapsulate equivalent code	QFP64,.66SQ,32
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	240
power supply	5 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum slew rate	0.23 mA
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 (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	20
width	14 mm

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CMOS SyncBiFIFO

256 x 18 x 2 and 512 x 18 x 2

FEATURES:

• Two independent FIFO memories for fully bidirectional data

transfers

• 256 x 18 x 2 organization (IDT72605)

• 512 x 18 x 2 organization (IDT72615)

• Synchronous interface for fast (20ns) read and write cycle times

• Each data port has an independent clock and read/write control

• Output enable is provided on each port as a three-state control

of the data bus

• Built-in bypass path for direct data transfer between two ports

• Two fixed flags, Empty and Full, for both the A-to-B and the B-

to-A FIFO

• Programmable flag offset can be set to any depth in the FIFO

• The synchronous BiFIFO is packaged in a 64-pin TQFP (Thin

Quad Flatpack) and 68-pin PLCC

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

IDT72605

IDT72615

DESCRIPTION:

The IDT72605 and IDT72615 are very high-speed, low-power bidirec-

tional First-In, First-Out (FIFO) memories, with synchronous interface for fast

read and write cycle times. The SyncBiFIFO™ is a data buffer that can store

or retrieve information from two sources simultaneously. Two Dual-Port FIFO

memory arrays are contained in the SyncBiFIFO; one data buffer for each

direction.

The SyncBiFIFO has registers on all inputs and outputs. Data is only

transferred into the I/O registers on clock edges, hence the interfaces are

synchronous. Each Port has its own independent clock. Data transfers to the

I/O registers are gated by the enable signals. The transfer direction for each

port is controlled independently by a read/write signal. Individual output enable

signals control whether the SyncBiFIFO is driving the data lines of a port or

whether those data lines are in a high-impedance state.

Bypass control allows data to be directly transferred from input to output

The SyncBiFIFO has eight flags. The flag pins are Full, Empty, Almost-Full,

and Almost-Empty for both FIFO memories. The offset depths of the Almost-Full

and Almost-Empty flags can be programmed to any location.

The SyncBiFIFO is fabricated using IDT’s high-speed, submicron CMOS

technology.

FUNCTIONAL BLOCK DIAGRAM

-D

A17

R/W

HIGH

CONTROL

CLK

INPUT REGISTER

OUTPUT REGISTER

MUX

MEMORY

ARRAY

512 x 18

256 x 18

MUX

MEMORY

ARRAY

512 x 18

256 x 18

RESET

LOGIC

PAE

PAF

µP

INTERFACE

FLAG

LOGIC

FLAG

LOGIC

PAE

PAF

POWER

SUPPLY

INPUT REGISTER

GND

CLK

R/W

HIGH

CONTROL

OUTPUT REGISTER

BYP

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

-D

B17

2704 drw 01

INDUSTRIAL TEMPERATURE RANGE

2000 Integrated Device Technology, Inc.

NOVEMBER 2000

DSC-2704/6

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