Integrated Device Technology, Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

OCTOBER 1996

DSC-2738/6

IDT7005S/L

HIGH-SPEED
8K x 8 DUAL-PORT
STATIC RAM

FEATURES:

· True Dual-Ported memory cells which allow simulta-

neous access of the same memory location

· High-speed access

-- Military: 20/25/35/55/70ns (max.)
-- Commercial:15/17/20/25/35/55ns (max.)

· Low-power operation

-- IDT7005S

Active: 750mW (typ.)
Standby: 5mW (typ.)

-- IDT7005L

Active: 750mW (typ.)
Standby: 1mW (typ.)

· IDT7005 easily expands data bus width to 16 bits or

more using the Master/Slave select when cascading
more than one device

· M/

= H for

BUSY

output flag on Master,

= L for

BUSY

input on Slave

· Busy and Interrupt Flags
· On-chip port arbitration logic
· Full on-chip hardware support of Semaphore signaling

between ports

· Fully asynchronous operation from either port
· Devices are capable of withstanding greater than 2001V

electrostatic discharge

· Battery backup operation--2V data retention
· TTL-compatible, single 5V (

10%) power supply

· Available in 68-pin PGA, 68-pin quad flatpack, 68-pin

PLCC, and a 64-pin TQFP

· Industrial temperature range (40

C to +85

C) is avail-

able, tested to military electrical specifications

DESCRIPTION:

The IDT7005 is a high-speed 8K x 8 Dual-Port Static RAM.

The IDT7005 is designed to be used as a stand-alone Dual-
Port RAM or as a combination MASTER/SLAVE Dual-Port

NOTES:
1. (MASTER):

BUSY

is output;

(SLAVE):

BUSY

is input.

BUSY

outputs

and

INT

outputs

are non-tri-stated
push-pull.

FUNCTIONAL BLOCK DIAGRAM

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

I/O

Control

Address

Decoder

MEMORY

ARRAY

ARBITRATION

INTERRUPT

SEMAPHORE

LOGIC

Address

Decoder

I/O

Control

BUSY

12L

2738 drw 01

I/O

- I/O

SEM

INT

BUSY

I/O

-I/O

12R

SEM

INT

(2)

(1,2)

(2)

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

6.06

6.06

IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

MILITARY AND COMMERCIAL TEMPERATURE RANGES

RAM for 16-bit-or-more word systems. Using the IDT MAS-
TER/SLAVE Dual-Port RAM approach in 16-bit or wider
memory system applications results in full-speed, error-free
operation without the need for additional discrete logic.

This device provides two independent ports with separate

control, address, and I/O pins that permit independent,
asynchronous access for reads or writes to any location in
memory. An automatic power down feature controlled by

permits the on-chip circuitry of each port to enter a very low
standby power mode.

Fabricated using IDT's CMOS high-performance technol-

ogy, these devices typically operate on only 750mW of power.
Low-power (L) versions offer battery backup data retention
capability with typical power consumption of 500

W from a 2V

battery.

The IDT7005 is packaged in a ceramic 68-pin PGA, a 68-

pin quad flatpack, a 68-pin PLCC and a 64-pin Thin Plastic
Quad Flatpack (TQFP). Military grade product is manufac-
tured in compliance with the latest revision of MIL-STD-883,
Class B, making it ideally suited to military temperature
applications demanding the highest level of performance and
reliability.

PIN CONFIGURATIONS

(1,2)

2738 drw 02

INDEX

1 68 67 66 65

27 28 29 30 31 32 33 34 35 36 37 38 39

I/O

INT

GND

I/O

40 41 42 43

64 63 62 61

I/O

GND

I/O

BUSY

GND

BUSY

INT

12R

I/O

N/C

GND

SEM

N/C

I/O

IDT7005

J68-1

F68-1

PLCC / FLATPACK

TOP VIEW

(3)

I/O

N/C

12L

N/C

11R

N/C

10R

11L

10L

N/C

NOTES:
1. All Vcc pins must be connected to the power supply.
2. All GND pins must be connected to the ground supply.
3. This text does not indicate orientation of the the actual part-marking.

INDEX

IDT7005

PN-64

TQFP

TOP VIEW

(3)

I/O

GND

BUSY

INT

GND

I/O

SEM

N/C

SEM

12R

GND

I/O

11R

10R

10L

11L

12L

I/O

2738 drw 03

IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

MILITARY AND COMMERCIAL TEMPERATURE RANGES

6.06

Left Port

Right Port

Names

Chip Enable

Read/Write Enable

Output Enable

12L

12R

Address

I/O

Data Input/Output

SEM

Semaphore Enable

INT

Interrupt Flag

BUSY

Busy Flag

Master or Slave Select

Power

GND

Ground

PIN NAMES

2738 tbl 01

NOTES:
1. All V

pins must be connected to power supply.

2. All GND pins must be connected to ground supply.
3. This text does not indicate oriention of the actual part-marking

PIN CONFIGURATIONS (CON'T.)

(1,2)

2738 drw 04

IDT7005

G68-1

68-PIN PGA

TOP VIEW(3)

INT

N/C

SEM

I/O

N/C

GND

I/O

N/C

SEM

GND

BUSY

INT

N/C

GND

N/C

INDEX

11R

10R

12R

11L

10L

12L

I/O

6.06

IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

MILITARY AND COMMERCIAL TEMPERATURE RANGES

TRUTH TABLE I NON-CONTENTION READ/WRITE CONTROL

Inputs

(1)

Outputs

SEM

I/O

0-7

Mode

High-Z

Deselected: Power-Down

DATA

Write to Memory

DATA

OUT

Read Memory

High-Z

Outputs Disabled

NOTE:

2738 tbl 02

1. A

-- A

12L

is not equal to A

-- A

12R.

RECOMMENDED DC OPERATING
CONDITIONS

Symbol

Parameter

Min.

Typ.

Max. Unit

Supply Voltage

4.5

5.0

5.5

GND

Supply Voltage

Input High Voltage

2.2

6.0

(2)

Input Low Voltage

0.5

(1)

0.8

NOTES:

2738 tbl 06

1. V

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

2. V

TERM

must not exceed Vcc + 0.5V.

RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE

Ambient

Grade

Temperature

GND

Military

C to +125

5.0V

10%

Commercial

C to +70

5.0V

10%

2738 tbl 05

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol

Rating

Commercial

Military

Unit

TERM

(2)

Terminal Voltage 0.5 to +7.0

0.5 to +7.0

with Respect
to GND

Operating

0 to +70

55 to +125

Temperature

BIAS

Temperature

55 to +125

65 to +135

Under Bias

STG

Storage

55 to +125

65 to +150

Temperature

OUT

DC Output

Current

NOTES:

2738 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. V

TERM

must not exceed Vcc + 0.5V for more than 25% of the cycle time

or 10% maximum, and is limited to < 20mA for the period of V

TERM

> Vcc

+ 0.5V.

CAPACITANCE

(1)

= +25

C, f = 1.0MHz) TQFP PACKAGE

Symbol

Parameter

Conditions

(2)

Max.

Unit

Input Capacitance

= 3dV

OUT

Output

OUT

= 3dV

Capacitance

NOTES:

2738 tbl 07

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

production tested.

2. 3dv references the interpolated capacitance when the input and output

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

TRUTH TABLE II SEMAPHORE READ/WRITE CONTROL

(1)

Inputs

Outputs

SEM

I/O

0-7

Mode

DATA

OUT

Read in Semaphore Flag Data 0ut

DATA

Write I/O

into Semaphore Flag

Not Allowed

2738 tbl 03

NOTE:
1. There are eight semaphore flags written to via I/O

and read from I/O

0 -

I/O

. These eight semaphores are addressed by A

- A

IDT7005S/L
HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

MILITARY AND COMMERCIAL TEMPERATURE RANGES

6.06

DC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE

(1)

= 5.0V

10%)

7005X15

7005X17

7005X20

7005X25

Test

Com'l. Only

Symbol

Parameter

Condition

Version

Typ.

(2)

Max. Typ.

(2)

Max. Typ.

(2)

Max. Typ.

(2)

Max. Unit

Dynamic Operating

= V

, Outputs Open

MIL.

160

370

155

340

Current

SEM

= V

150

320

145

280

(Both Ports Active) f = f

MAX

(3)

COM.

170

310

170

310

160

290

155

265

160

260

160

260

150

240

145

220

SB1

Standby Current

= V

MIL.

(Both Ports -- TTL

SEM

= V

Level Inputs f = f

MAX

(3)

COM.

SB2

Standby Current

"A"=

and

"B"=

(5)

MIL.

240

215

(One Port -- TTL Active Port Outputs Open

210

180

Level Inputs) f = f

MAX

(3)

COM.

105

190

105

190

180

170

SEM

> V

160

150

140

SB3

Full Standby Current Both Ports

and

MIL.

1.0

(Both Ports -- All

> V

- 0.2V

(5)

0.2

CMOS Level Inputs) V

> V

- 0.2V or

COM.

1.0

< 0.2V, f = 0

(4)

0.2

SEM

> V

- 0.2V

SB4

Full Standby Current

CE"

< 0.2V and

MIL.

225

200

(One Port -- All

CE"

> V

- 0.2v

CMOS Level Inputs)

SEM

> V

- 0.2V

200

170

> V

- 0.2V or

COM.

100

170

100

170

155

145

< 0.2V

Active Port Outputs Open,

140

130

120

f = f

MAX

(3)

DC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE

= 5.0V

10%)

IDT7005S

IDT7005L

Symbol

Parameter

Test Conditions

Min.

Max.

Min.

Max.

Unit

Input Leakage Current

(1)

= 5.5V, V

= 0V to V

Output Leakage Current

= V

, V

OUT

= 0V to V

Output Low Voltage

= 4mA

0.4

Output High Voltage

= -4mA

2.4

NOTES:

2738 tbl 09

1. "X" in part numbers indicates power rating (S or L).
2. V

= 5V, T

= +25

C, and are not production tested. I

CC DC

= 120mA typ.)

3. At f = f

MAX

address and I/O'

are cycling at the maximum frequency read cycle of 1/t

, and using "AC Test Conditions" of input levels of GND to 3V.

4. f = 0 means no address or control lines change.
5. Port "A"may be either left or right port. Port "B" is the port opposite port "A".

NOTE:

2738 tbl 08

1. At Vcc < 2.0V input leakages are undefined.

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