IDT IDT7200L, IDT7201LA, IDT7202LA User Manual

Integrated Device Technology, Inc.

W

CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9, 1K x 9

IDT7200L

IDT7201LA
IDT7202LA

FEATURES:

• First-In/First-Out dual-port memory

• 256 x 9 organization (IDT7200)

• 512 x 9 organization (IDT7201)

• 1K x 9 organization (IDT7202)

• Low power consumption
— Active: 770mW (max.)
—Power-down: 2.75mW (max.)

• Ultra high speed—12ns access time

• Asynchronous and simultaneous read and write

• Fully expandable by both word depth and/or bit width

• Pin and functionally compatible with 720X family

• Status Flags: Empty, Half-Full, Full

• Auto-retransmit capability

• High-performance CEMOS technology

• Military product compliant to MIL-STD-883, Class B

• Standard Military Drawing #5962-87531, 5962-89666,
5962-89863 and 5962-89536 are listed on this function

• Industrial temperature range (-40oC to +85oC) is
available, tested to military electrical specifications

DESCRIPTION:

The IDT7200/7201/7202 are dual-port memories that load
and empty data on a first-in/first-out basis. The devices use
Full and Empty flags to prevent data overflow and underflow
and expansion logic to allow for unlimited expansion capability
in both word size and depth.

The reads and writes are internally sequential through the
use of ring pointers, with no address information required to
load and unload data. Data is toggled in and out of the devices
through the use of the Write (W) and Read (R) pins.

The devices utilizes a 9-bit wide data array to allow for
control and parity bits at the user’s option. This feature is
especially useful in data communications applications where
it is necessary to use a parity bit for transmission/reception
error checking. It also features a Retransmit (RT) capability
that allows for reset of the read pointer to its initial position
when RT is pulsed low to allow for retransmission from the
beginning of data. A Half-Full Flag is available in the single
device mode and width expansion modes.

The IDT7200/7201/7202 are fabricated using IDT’s high­speed CMOS technology. They are designed for those
applications requiring asynchronous and simultaneous read/
writes in multiprocessing and rate buffer applications. Military
grade product is manufactured in compliance with the latest
revision of MIL-STD-883, Class B.

FUNCTIONAL BLOCK DIAGRAM

DATA INPUTS

0(D –D8)

WRITE

CONTROL

WRITE

POINTER

R

XI

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

READ

CONTROL

EXPANSION

THREE­STATE
BUFFERS

FLAG

LOGIC

LOGIC

MILITARY AND COMMERCIAL TEMPERATURE RANGES DECEMBER 1996

1996 Integrated Device Technology, Inc. DSC-2679/7

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

5.03 1

RAM

ARRAY

256 x 9
512 x 9

1024 x 9

DATA OUTPUTS

0(Q –Q8)

EF
FF

XO/HF

READ

POINTER

RS

RESET

LOGIC

FL/RT

2679 drw 01

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9 and 1K x 9 MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN CONFIGURATIONS

W

D8

1
2

28

27
D3 D5326
D2 D6425
D1 D7524
D0

XI RS

FF EF

Q0

P28-1,
P28-2,

623

D28-1,
D28-3,

722

E28-2,

821

SO28-3

920
Q1 Q710 19
Q2 Q611 18
Q3 Q512 17
Q8 Q413 16

GND

14 15

DIP/SOIC/CERPACK

TOP VIEW

NOTE:

1. CERPACK (E28-2) and 600-mil-wide DIP (P28-1 and D28-1) not available
for 7200.

VCC
D4

FL/RT

XO/HF

R

2679 drw 02a

INDEX

D

2

D

1

D

0

XI

FF

Q

0

Q

1

5
6
7
8
9
10
11

D8

D3

W

4

3 2132 31 30

J32-1
L32-1

NC 12

Q

2

13

14 15 16 17 18 19 20

Q3

Q8

GND

LCC/PLCC

TOP VIEW

NOTE:

1. LCC (L32-1) not available for 7200.

CC

D4

NC

&

NC

D5

V

D

29
28
27
26
25
24
23
22
21

4

R

Q5

Q

6

D

7

NC

FL/RT
RS
EF
XO/HF

Q

7

Q

6

2679 drw 02b

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol Rating Com’l. Mil. Unit

V

TERM Terminal Voltage –0.5 to +7.0 –0.5 to +7.0 V

with Respect
to GND

T

A Operating 0 to +70 –55 to +125 °C

Temperature

T

BIAS Temperature –55 to +125 –65 to +135 °C

Under Bias

T

STG Storage –55 to +125 –65 to +155 °C

Temperature

I

OUT DC Output 50 50 mA

Current

NOTE: 2679 tbl 01

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 reliabilty.

CAPACITANCE (TA = +25°C, f = 1.0 MHz)

Symbol Parameter

IN Input Capacitance VIN = 0V 8 pF

C

OUT Output Capacitance VOUT = 0V 8 pF

C

NOTE: 2679 tbl 02

1. This parameter is sampled and not 100% tested.

(1)

Condition Max. Unit

RECOMMENDED DC OPERATING
CONDITIONS

Symbol Parameter Min. Typ. Max. Unit

V

CCM

V

CCC

GND Supply Voltage 0 0 0 V

(1)

V

IH

(1)

V

IH

(2)

V

IL

NOTE: 2679 tbl 03

1. VIH = 2.6V for XI input (commercial).

IH = 2.8V for

V

2. 1.5V undershoots are allowed for 10ns once per cycle.

Military Supply
Voltage

Commercial Supply
Voltage

Input High Voltage
Commercial

Input High Voltage
Mlitary

Input Low Voltage
Commercial and
Military

XI

input (military).

4.5 5.0 5.5 V

4.5 5.0 5.5 V

2.0 — — V

2.2 — — V

— — 0.8 V

5.03 2

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9 and 1K x 9 MILITARY AND COMMERCIAL TEMPERATURE RANGES

DC ELECTRICAL CHARACTERISTICS

(Commercial: VCC = 5.0V±10%, TA = 0°C to +70°C; Military: VCC = 5.0V±10%, TA = –55°C to +125°C)

IDT7200L IDT7200L IDT7200L
IDT7201LA IDT7201LA IDT7201LA
IDT7202LA IDT7202LA IDT7202LA

Commercial Military Commercial

t

A = 12, 15, 20 ns tA = 20 ns tA = 25, 35 ns

Symbol Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit

(1)

LI

I

(2)

LO

I

OH Output Logic “1” Voltage IOH = –2mA 2.4 — — 2.4 — — 2.4 — — V

V

OL Output Logic “0” Voltage IOL = 8mA — — 0.4 — — 0.4 — — 0.4 V

V

(3)

CC1

I

(3)

CC2

I

CC3(L)

I

Input Leakage Current (Any Input) –1 — 1 –10 — 10 –1 — 1 µA
Output Leakage Current –10 — 10 –10 — 10 –10 — 10 µA

Active Power Supply Current — — 125

(4)

— — 140

(4)

— — 125

(4)

mA

Standby Current (R=W=RS=FL/RT=VIH)——15——20——15mA

(3)

Power Down Current (All Input = VCC - 0.2V) — — 0.5 — — 0.9 — — 0.5 mA

NOTES: 2679 tbl 05

1. Measurements with 0.4 ≤ VIN ≤ VCC.

2.R ≥ V

3. I

4. Tested at f = 20MHz.

IH, 0.4 ≤ VOUT ≤ VCC.

CC measurements are made with outputs open (only capacitive loading).

2679 tbl 04

DC ELECTRICAL CHARACTERISTICS (Continued)

(Commercial: VCC = 5.0V±10%, TA = 0°C to +70°C; Military: VCC = 5.0V±10%, TA = –55°C to +125°C)

IDT7200L IDT7200L IDT7200L
IDT7201LA IDT7201LA IDT7201LA
IDT7202LA IDT7202LA IDT7202LA

Military Commercial Military

t

A = 30, 40 ns tA = 50 ns tA = 50, 65, 80, 120 ns

Symbol Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit

(1)

LI

I

(2)

LO

I

OH Output Logic “1” Voltage IOH = –2mA 2.4 — — 2.4 — — 2.4 — — V

V

OL Output Logic “0” Voltage IOL = 8mA — — 0.4 — — 0.4 — — 0.4 V

V

(3)

CC1

I

(3)

CC2

I

CC3(L)

I

NOTES: 2679 tbl 05

1. Measurements with 0.4 ≤ VIN ≤ VCC.

2.R ≥ V

3. I

CC measurements are made with outputs open (only capacitive loading).

4. Tested at f = 20MHz.

Input Leakage Current (Any Input) –10 — 10 –1 — 1 –10 — 10 µA
Output Leakage Current –10 — 10 –10 — 10 –10 — 10 µA

Active Power Supply Current — — 140

(4)

— 50 80 — 70 100 mA

Standby Current (R=W=RS=FL/RT=VIH)——20—58—815mA

(3)

Power Down Current (All Input = VCC - 0.2V) — — 0.9 — — 0.5 — — 0.9 mA

IH, 0.4 ≤ VOUT ≤ VCC.

5.03 3

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9 and 1K x 9 MILITARY AND COMMERCIAL TEMPERATURE RANGES

AC ELECTRICAL CHARACTERISTICS

(1)

(Commercial: VCC = 5.0V±10%, TA = 0°C to +70°C; Military: VCC = 5.0V±10%, TA = –55°C to +125°C)

Commercial Com'l & Mil. Com'l Military Com'l

7200L12 7200L15 7200L20 7200L25 7200L30 7200L35
7201LA12 7201LA15 7201LA20 7201LA25 7201LA30 7201LA35
7202LA12 7202LA15 7202LA20 7202LA25 7202LA30 7202LA35

Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit

S Shift Frequency — 50 — 40 — 33.3 — 28.5 — 25 — 22.2 MHz

t

RC Read Cycle Time 20 — 25 — 30 — 35 — 40 — 45 — ns

t

A Access Time — 12 — 15 — 20 — 25 — 30 — 35 ns

t

RR Read Recovery Time 8 — 10 — 10 — 10 — 10 — 10 — ns

t

RPW Read Pulse Width

t

RLZ Read Pulse Low to Data Bus at Low Z

t

WLZ Write Pulse High to Data Bus at Low Z

t

DV Data Valid from Read Pulse High 5 — 5 — 5 — 5 — 5 — 5 — ns

t

RHZ Read Pulse High to Data Bus at High Z

t

WC Write Cycle Time 20 — 25 — 30 — 35 — 40 — 45 — ns

t

WPW Write Pulse Width

t

WR Write Recovery Time 8 — 10 — 10 — 10 — 10 — 10 — ns

t

DS Data Set-up Time 9 — 11 — 12 — 15 — 18 — 18 — ns

t

DH Data Hold Time 0 — 0 — 0 — 0 — 0 — 0 — ns

t

RSC Reset Cycle Time 20 — 25 — 30 — 35 — 40 — 45 — ns

t

RS Reset Pulse Width

t

RSS Reset Set-up Time

t

RSR Reset Recovery Time 8 — 10 — 10 — 10 — 10 — 10 — ns

t

RTC Retransmit Cycle Time 20 — 25 — 30 — 35 — 40 — 45 — ns

t

RT Retransmit Pulse Width

t

RTS Retransmit Set-up Time

t

RTR Retransmit Recovery Time 8 — 10 — 10 — 10 — 10 — 10 — ns

t

EFL Reset to Empty Flag Low — 12 — 25 — 30 — 35 — 40 — 45 ns

t

HFH,FFH Reset to Half-Full and Full Flag High — 17 — 25 — 30 — 35 — 40 — 45 ns

t

RTF Retransmit Low to Flags Valid — 20 — 25 — 30 — 35 — 40 — 45 ns

t

REF Read Low to Empty Flag Low — 12 — 15 — 20 — 25 — 30 — 30 ns

t

RFF Read High to Full Flag High — 14 — 15 — 20 — 25 — 30 — 30 ns

t

RPE Read Pulse Width after

t

WEF Write High to Empty Flag High — 12 — 15 — 20 — 25 — 30 — 30 ns

t

WFF Write Low to Full Flag Low — 14 — 15 — 20 — 25 — 30 — 30 ns

t

WHF Write Low to Half-Full Flag Low — 17 — 25 — 30 — 35 — 40 — 45 ns

t

RHF Read High to Half-Full Flag High — 17 — 25 — 30 — 35 — 40 — 45 ns

t

WPF Write Pulse Width after

t

XOL Read/Write to

t

XOH Read/Write to

t

XI

t

XIR

t

XIS

t

NOTES: 2679 tbl 06

1. Timings referenced as in AC Test Conditions. 3. Values guaranteed by design, not currently tested.

2. Pulse widths less than minimum value are not allowed. 4. Only applies to read data flow-through mode.

XI

Pulse Width

XI

Recovery Time 8 — 10 — 10 — 10 — 10 — 10 — ns

XI

Set-up Time 8 — 10 — 10 — 10 — 10 — 10 — ns

(2)

(2)

(2)

(3)

(2)
(3)

EF

High 12 — 15 — 20 — 25 — 30 — 35 — ns

FF

High 12 — 15 — 20 — 25 — 30 — 35 — ns

XO

Low — 12 — 15 — 20 — 25 — 30 — 35 ns

XO

High — 12 — 15 — 20 — 25 — 30 — 35 ns

(2)

12 — 15 — 20 — 25 — 30 — 35 — ns

(3)

3—5—5—5— 5 —5—ns

(3, 4)

3—5—5—5— 5 —10—ns

(3)

— 12 — 15 — 15 — 18 — 20 — 20 ns

12 — 15 — 20 — 25 — 30 — 35 — ns

12 — 15 — 20 — 25 — 30 — 35 — ns
12 — 15 — 20 — 25 — 30 — 35 — ns

12 — 15 — 20 — 25 — 30 — 35 — ns
12 — 15 — 20 — 25 — 30 — 35 — ns

12 — 15 — 20 — 25 — 30 — 35 — ns

5.03 4

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9 and 1K x 9 MILITARY AND COMMERCIAL TEMPERATURE RANGES

AC ELECTRICAL CHARACTERISTICS

(1)

(Continued)

(Commercial: VCC = 5.0V±10%, TA = 0°C to +70°C; Military: VCC = 5.0V±10%, TA = –55°C to +125°C)

Military Com'l & Mil. Military

7200 L40 7200L50 7200L65 7200L80 7200L120

7201LA40 7201LA50 7201LA65 7201LA80 7201LA120

7202LA40 7202LA50 7202LA65 7202LA80 7202LA120

Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit

t

S Shift Frequency — 20 — 15 — 12.5 — 10 — 7 MHz
RC Read Cycle Time 50 — 65 — 80 — 100 — 140 — ns

t

A Access Time — 40 — 50 — 65 — 80 — 120 ns

t

RR Read Recovery Time 10 — 15 — 15 — 20 — 20 — ns

t

RPW Read Pulse Width

t

RLZ Read Pulse Low to Data Bus at Low Z

t

WLZ Write Pulse High to Data Bus at Low Z

t

DV Data Valid from Read Pulse High 5 — 5 — 5 — 5 — 5 — ns

t

RHZ Read Pulse High to Data Bus at High Z

t

WC Write Cycle Time 50 — 65 — 80 — 100 — 140 — ns

t

WPW Write Pulse Width

t

WR Write Recovery Time 10 — 15 — 15 — 20 — 20 — ns

t

DS Data Set-up Time 20 — 30 — 30 — 40 — 40 — ns

t

DH Data Hold Time 0 — 5 — 10 — 10 — 10 — ns

t

RSC Reset Cycle Time 50 — 65 — 80 — 100 — 140 — ns

t

RS Reset Pulse Width

t

RSS Reset Set-up Time

t

RSR Reset Recovery Time 10 — 15 — 15 — 20 — 20 — ns

t

RTC Retransmit Cycle Time 50 — 65 — 80 — 100 — 140 — ns

t

RT Retransmit Pulse Width

t

RTS Retransmit Set-up Time

t

RTR Retransmit Recovery Time 10 — 15 — 15 — 20 — 20 — ns

t

EFL Reset to Empty Flag Low — 50 — 65 — 80 — 100 — 140 ns

t

HFH,FFH Reset to Half-Full and Full Flag High — 50 — 65 — 80 — 100 — 140 ns

t

RTF Retransmit Low to Flags Valid — 50 — 65 — 80 — 100 — 140 ns

t

REF Read Low to Empty Flag Low — 30 — 45 — 60 — 60 — 60 ns

t

RFF Read High to Full Flag High — 35 — 45 — 60 — 60 — 60 ns

t

RPE Read Pulse Width after

t

WEF Write High to Empty Flag High — 35 — 45 — 60 — 60 — 60 ns

t

WFF Write Low to Full Flag Low — 35 — 45 — 60 — 60 — 60 ns

t

WHF Write Low to Half-Full Flag Low — 50 — 65 — 80 — 100 — 140 ns

t

RHF Read High to Half-Full Flag High — 50 — 65 — 80 — 100 — 140 ns

t

WPF Write Pulse Width after

t

XOL Read/Write to

t

XOH Read/Write to

t

XI

t

XIR

t

XIS

t

NOTES: 2679 tbl 07

1. Timings referenced as in AC Test Conditions 4. Values guaranteed by design, not currently tested.

2. Speed grades 65, 80 and 120 not available in the CERPACK 5. Only applies to read data flow-through mode.

3. Pulse widths less than minimum value are not allowed.

XI

Pulse Width

XI

Recovery Time 10 — 10 — 10 — 10 — 10 — ns

XI

Set-up Time 10 — 15 — 15 — 15 — 15 — ns

(3)

(3)

(3)

(4)

(3)

(4)

EF

High 40 — 50 — 65 — 80 — 120 — ns

FF

High 40 — 50 — 65 — 80 — 120 — ns

XO

Low — 40 — 50 — 65 — 80 — 120 ns

XO

High — 40 — 50 — 65 — 80 — 120 ns

(3)

40 — 50 — 65 — 80 — 120 — ns

(4)

5 — 10 — 10 — 10 — 10 — ns

(4, 5)

10 — 15 — 15 — 20 — 20 — ns

(4)

— 25 — 30 — 30 — 30 — 35 ns

40 — 50 — 65 — 80 — 120 — ns

40 — 50 — 65 — 80 — 120 — ns
40 — 50 — 65 — 80 — 120 — ns

40 — 50 — 65 — 80 — 120 — ns
40 — 50 — 65 — 80 — 120 — ns

40 — 50 — 65 — 80 — 120 — ns

(2)

5.03 5