IDT70V07L(1996) Просмотр технического описания (PDF) - Integrated Device Technology

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IDT70V07L
(Rev.:1996)

HIGH-SPEED 3.3V 32K x 8 DUAL-PORT STATIC RAM

Integrated Device Technology 

IDT70V07S/L

HIGH-SPEED 3.3V 32K x 8 DUAL-PORT STATIC RAM

COMMERCIAL TEMPERATURE RANGE

TRUTH TABLE I – NON-CONTENTION READ/WRITE CONTROL

Inputs(1)

Outputs

CE

R/W OE SEM I/O0-7

Mode

H

X

X

H High-Z

Deselected: Power-Down

L

L

X

H DATAIN

Write to Memory

L

H

L

H DATAOUT

Read Memory

X

X

H

X High-Z

Outputs Disabled

NOTE:

1. A0L — A14L ≠ A0R — A14R.

2943 tbl 02

TRUTH TABLE II – SEMAPHORE READ/WRITE CONTROL(1)

Inputs

Outputs

CE

R/W OE SEM I/O0-7

Mode

H

H

L

L DATAOUT

Read Data in Semaphore Flag

H

X

L DATAIN

Write I/O0 into Semaphore Flag

L

X

X

L

—

Not Allowed

NOTE:

1. There are eight semaphore flags written to via I/O0 and read from all I/O's (I/O0-I/O7). These eight semaphores are addressed by A0 - A2.

2943 tbl 03

ABSOLUTE MAXIMUM RATINGS (1)

Symbol

Rating

Commercial Unit

VTERM(2)

Terminal Voltage

with Respect

to GND

–0.5 to +4.6 V

TA

Operating

Temperature

0 to +70 °C

TBIAS

Temperature

Under Bias

–55 to +125 °C

TSTG

Storage

Temperature

–55 to +125 °C

IOUT

DC Output

Current

50

mA

NOTES:

2943 tbl 04

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 Vcc + 0.3V for more than 25% of the cycle time

or 10ns maximum, and is limited to < 20mA for the period of VTERM > Vcc

+ 0.3V.

RECOMMENDED OPERATING

TEMPERATURE AND SUPPLY VOLTAGE

Grade

Ambient

Temperature

GND

VCC

Commercial

0°C to +70°C

0V

3.3V ± 0.3V

2943 tbl 05

RECOMMENDED DC OPERATING

CONDITIONS (2)

Symbol

Parameter

Min. Typ.

Max. Unit

VCC

GND

Supply Voltage

Supply Voltage

3.0 3.3 3.6 V

0

0

0V

VIH

Input High Voltage

2.0 — VCC+0.3 V

VIL

Input Low Voltage –0.3(1) —

0.8 V

NOTES:

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

2. VTERM must not exceed Vcc + 0.3V.

2943 tbl 06

CAPACITANCE(1)

(TA = +25°C, f = 1.0MHz)TQFP ONLY

Symbol

Parameter

Conditions(2) Max. Unit

CIN

Input Capacitance VIN = 3dV

9

pF

COUT

Output

Capacitance

VOUT = 3dV

10

pF

NOTES:

2943 tbl 07

1. This parameter is determined by device characterization but is not

production tested.

2. 3dV represents the interpolated capacitance when the input and output

signals switch from 0V to 3V or from 3V to 0V.

6.37

4

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