IDT70T9349L7BFI datasheet(5/16 Pages) IDT

Part #	IDT70T9349L7BFI

Description	HIGH-SPEED 2.5V 8/4K x 18 SYNCHRONOUS PIPELINED DUAL-PORT STATIC RAM

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Manufacturer	IDT [Integrated Device Technology]

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5 / 16 page

6.42

IDT70T9359/49L

High-Speed 2.5V 8/4K x 18 Dual-Port Synchronous Pipelined Static RAM

Industrial and Commercial Temperature Ranges

5

Preliminary

Recommended Operating

Temperature and Supply Voltage

Recommended DC Operating

Conditions

Absolute Maximum Ratings(1)

NOTES:

1.

These parameters are determined by device characterization, but are not

production tested.

2. 3dV references the interpolated capacitance when the input and output switch

from 0V to 3V or from 3V to 0V.

3. COUT also references CI/O.

Capacitance(1)

(TA = +25°C, f = 1.0MHZ)

Truth Table IIAddress Counter Control(1,2)

NOTES:

1. VIL > -1.5V for pulse width less than 10 ns.

2. VTERM must not exceed VDD +0.3V.

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may

cause permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions above those indicated

in the operational sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect reliability.

2. VTERM must not exceed VDD + 0.3V for more than 25% of the cycle time or 10ns

maximum, and is limited to < 20mA for the period of VTERM > VDD + 0.3V.

NOTES:

1. This is the parameter TA. This is the "instant on" case temperature.

External

Address

Internal

Address

Used

CLK

ADS

CNTEN

CNTRST

I/O(3)

MODE

An

X

An

↑

L

(4)

XH

DI/O (n)

External Ad dress Used

XAn

An + 1

↑

H

L(5)

HDI/O(n+1)

Counte r Enable d—Inte rnal Add re ss ge ne ration

X

An + 1

↑

HH

H

DI/O(n+1)

E xternal Addre ss Blocke d— Counte r d isab le d (An + 1 re used )

XX

A0

↑

XX

L(4)

DI/O(0)

Counte r Reset to Ad dress 0

5640 tbl 03

Grade

Ambient

Temperature

(1)

GND

VDD

Commercial

0OC to +70OC0V

2.5V

+ 100mV

Industrial

-40OC to +85OC0V

2.5V

+ 100mV

5640 tbl 04

Symbol

Parameter

Min.

Typ.

Max.

Unit

VDD

Supply Voltage

2.4

2.5

2.6

V

VSS

Ground

0

V

VIH

Input High Voltage

1.7

____

VDD+0.3V(2)

V

VIL

Input Low Voltage

-0.3(1)

____

0.7

V

5640 tbl 05

Symbol

Rating

Commercial

& Industrial

Unit

VTERM(2)

Terminal Voltage

with Respect to

GND

-0.5 to +3.6

V

TBIAS

Temperature

Under Bias

-55 to +125

oC

TSTG

Storage

Temperature

-65 to +150

oC

IOUT

DC Output Current

50

mA

5640 tbl 06

Symbol

Parameter

Conditions

(2)

Max.

Unit

CIN

Input Capacitance

VIN = 3dV

9

pF

COUT

(3)

Output Capacitance

VOUT = 3dV

10

pF

5640 tbl 07

NOTES:

1. "H" = VIH, "L" = VIL, "X" = Don't Care.

2.

CE0, LB, UB, and OE = VIL; CE1 and R/W = VIH.

3. Outputs configured in Flow-Through Output mode: if outputs are in Pipelined mode the data out will be delayed by one cycle.

4.

ADS and CNTRST are independent of all other signals including CE0, CE1, UB and LB.

5. The address counter advances if

CNTEN = VIL on the rising edge of CLK, regardless of all other signals including CE0, CE1, UB and LB.

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