Cypress Semiconductor CY7C1007BN User manual

1M x 1 Static RAM

CY7C107BN

CY7C1007BN

Cypress Semiconductor Corporation • 198ChampionCourt • San Jose,CA 95134-1709 • 408-943-2600

Document #: 001-06426 Rev. ** Revised February 1, 2006

Features

•Highspeed

—t

AA = 15 ns

• CMOS for optimum speed/power

• Automatic power-down when deselected

• TTL-compatible inputs and outputs

Functional Description

The CY7C107BN and CY7C1007BN are high-performance

CMOS static RAMs organized as 1,048,576 words by 1 bit.

Easy memory expansion is provided by an active LOW Chip

Enable (CE) and three-state drivers. These devices have an

automatic power-down feature that reduces power

consumption by more than 65% when deselected.

Writing to the devices is accomplished by taking Chip Enable

(CE) and Write Enable (WE) inputs LOW. Data on the input pin

(DIN) is written into the memory location specified on the

address pins (A0through A19).

Reading from the devices is accomplished by taking Chip

Enable (CE) LOW while Write Enable (WE) remains HIGH.

Under these conditions, the contents of the memory location

specified by the address pins will appear on the data output

(DOUT) pin.

The output pin (DOUT) is placed in a high-impedance state

when the device is deselected (CE HIGH) or during a write

operation (CE and WE LOW).

The CY7C107BN is available in a standard 400-mil-wide SOJ;

the CY7C1007BN is available in a standard 300-mil-wide SOJ

LogicBlock Diagram Pin Configuration

Top View

SOJ

512 x 2048

ARRA

COLUMN

DECODER

ROW DECODER

SENSE AMPS

POWER

DOWN

INPUT BUFFER

DOUT

DIN

14 15

GND

A11

A12

A13

A14

VCC

A10

DOUT DIN

A15

A16

A12

A14

A16

A15

A10

A11

A13

A17

A18

A19

A17

A18

A19

Selection Guide

7C107BN-15

7C1007BN-15

Maximum Access Time (ns) 15

Maximum Operating Current (mA) 80

Maximum CMOS Standby Current ISB2 (mA) 2

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CY7C107BN

CY7C1007BN

Document #: 001-06426 Rev. ** Page 2 of 7

Maximum Ratings

(Above which the useful life may be impaired. For user guide-

lines, not tested.)

Storage Temperature ..................................-65°C to +150°C

Ambient Temperature with

Power Applied..............................................-55°C to +125°C

Supply Voltage on VCC Relative to GND[1] .....-0.5V to +7.0V

DC Voltage Applied to Outputs

in High Z State[1] .................................... -0.5V to VCC + 0.5V

DC Input Voltage[1]..................................-0.5V to VCC + 0.5V

Current into Outputs (LOW).........................................20 mA

Static Discharge Voltage............................................>2001V

(per MIL-STD-883, Method 3015)

Latch-Up Current.....................................................>200 mA

Operating Range

Range Ambient Temperature[2] VCC

Commercial 0°C to +70°C 5V ± 10%

Industrial -40°C to +85°C 5V ± 10%

Electrical Characteristics Over the Operating Range

Parameter Description Test Conditions

7C107BN-15

7C1007BN-15

Min. Max. Unit

VOH Output HIGH Voltage VCC = Min., IOH = –4.0 mA 2.4 V

VOL Output LOW Voltage VCC = Min., IOL = 8.0 mA 0.4 V

VIH Input HIGH Voltage 2.2 VCC + 0.3 V

VIL Input LOW Voltage[1] -0.3 0.8 V

IIX Input Leakage Current GND < VI< VCC -1 +1 mA

IOZ Output Leakage Current GND < VI <VCC,

Output Disabled –5 +5 mA

IOS Output Short Circuit

Current[3] VCC = Max., VOUT = GND -300 mA

ICC VCC Operating Supply

Current VCC = Max., IOUT = 0 mA,

f = fMAX = 1/tRC 80 mA

ISB1 Automatic CE Power-Down

Current— TTL Inputs Max. VCC, CE > VIH, VIN >VIH or

VIN < VIL, f = f MAX 20 mA

ISB2 Automatic CE Power-Down

Current — CMOS Inputs Max. VCC, CE > VCC – 0.3V,

VIN > VCC – 0.3V or VIN < 0.3V, f = 0 2mA

Capacitance[4]

Parameter Description Test Conditions Max. Unit

CIN: Addresses Input Capacitance TA= 25 × C, f = 1 MHz,

VCC = 5.0V 7pF

CIN: Controls 10 pF

COUT Output Capacitance 10 pF

Notes:

1. VIL (min.) = –2.0V for pulse durations of less than 20 ns.

2. TAis the “Instant On” case temperature.

3. Not more than 1 output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.

4. Tested initially and after any design or process changes that may affect these parameters.

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CY7C107BN

CY7C1007BN

Document #: 001-06426 Rev. ** Page 3 of 7

AC Test Loads and Waveforms

Switching Characteristics[5] Over the Operating Range

7C107BN-15

7C1007BN-15

Parameter Description Min. Max. Unit

READ CYCLE

tRC Read Cycle Time 15 ns

tAA Address to Data Valid 15 ns

tOHA Data Hold from Address Change 3 ns

tACE CE LOW to Data Valid 15 ns

tLZCE CE LOW to Low Z[6] 3ns

tHZCE CE HIGH to High Z[6, 7] 7ns

tPU CE LOW to Power-Up 0 ns

tPD CE HIGH to Power-Down 15 ns

WRITE CYCLE[8]

tWC Write Cycle Time 15 ns

tSCE CE LOW to Write End 12 ns

tAW Address Set-Up to Write End 12 ns

tHA Address Hold from Write End 0 ns

tSA Address Set-Up to Write Start 0 ns

tPWE WE Pulse Width 12 ns

tSD Data Set-Up to Write End 8 ns

tHD Data Hold from Write End 0 ns

tLZWE WE HIGH to Low Z[6] 3ns

tHZWE WE LOW to High Z[6, 7] 7ns

Notes:

5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified

IOL/IOH and 30-pF load capacitance.

6. At any given temperature and voltage condition, tHZCE is less than tLZCE and tHZWE is less than tLZWE for any given device.

7. tHZCE and tHZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage.

8. The internal write time of the memory is defined by the overlap of CE LOW and WE LOW. CE and WE must be LOW to initiate a write, and the transition of any

of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the signal that terminates the write.

3.0V

OUTPUT

R1 480Ω

255Ω

30 pF

INCLUDING

JIG AND

SCOPE

GND 90%

10% 90%

10%

≤ 3ns ≤ 3ns

OUTPUT

5pF

INCLUDING

JIG AND

SCOPE

(a) (b)

OUTPUT 1.73V

Equivalentto: THÉVENIN EQUIVALENT

ALL INPUT PULSES

255Ω

R1 480Ω

167Ω

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CY7C1007BN

Document #: 001-06426 Rev. ** Page 4 of 7

Switching Waveforms

Read Cycle No. 1[10, 11]

Read Cycle No. 2[11, 12]

Write Cycle No. 1 (CE Controlled)[13]

Notes:

9. No input may exceed VCC + 0.5V.

10.Device is continuously selected, CE= VIL.

11. WE is HIGH for read cycle.

12.Address valid prior to or coincident with CE transition LOW.

13.If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.

PREVIOUS DATA VALID DATA VALID

tRC

tAA

tOHA

ADDRESS

DATA OUT

50%

DATA VALID

tRC

tACE

tLZCE

tPU

HIGH IMPEDANCE

tHZCE

tPD

HIGH

ICC

ISB

IMPEDANCE

ADDRESS

DATA OUT

VCC

SUPPLY

CURRENT

DATA VALID

tSCE

tAW

tSA

tPWE

tHA

tHD

tSD

tWC

HIGH IMPEDANCE

ADDRESS

DATA OUT

DATA IN

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CY7C1007BN

Document #: 001-06426 Rev. ** Page 5 of 7

Write Cycle No. 2 (WE Controlled)[13]

Truth Table

CE WE DOUT Mode Power

H X High Z Power-Down Standby (ISB)

L H Data Out Read Active (ICC)

L L High Z Write Active (ICC)

Ordering Information

Speed

(ns) Ordering Code Package

Diagram Package Type Operating

Range

15 CY7C107BN-15VC 51-85032 28-Lead (400-Mil) Molded SOJ Commercial

CY7C1007BN-15VC 51-85031 28-Lead (300-Mil) Molded SOJ

CY7C1007BN-15VXC 51-85031 28-Lead (300-Mil) Molded SOJ (Pb-free)

CY7C107BN-15VI 51-85032 28-Lead (400-Mil) Molded SOJ Industrial

Please contact local sales representative regarding availability of these parts

Switching Waveforms (continued)

tWC

DATA VALID

DATA UNDEFINED HIGH IMPEDANCE

tSCE

tAW

tSA tPWE tHA

tHD

tHZWE tLZWE

tSD

ADDRESS

DATA OUT

DATA IN

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CY7C107BN

CY7C1007BN

Document #: 001-06426 Rev. ** Page 6 of 7

of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be

used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its

products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress

products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

All product or company names mentioned in this document may be the trademarks of their respective holders.

Package Diagrams

51-85032-*B

PIN 1 I.D

.435

.395 .445

.405

.128

.148

.360

.380

.026

.015

.032

.020

DIMENSIONS IN INCHES MIN.

MAX.

.025 MIN.

.007

.013

.050

TYP.

.720

.730

114

15 28

0.004

SEATING PLANE

51-85032.*B

28-Lead (400-Mil) Molded SOJ (51-85032)

MIN.

MAX.

PIN 1 ID

0.291

0.300

0.050

TYP.

0.007

0.013

0.330

0.350

0.120

0.140

0.025 MIN.

0.262

0.272

0.697

0.713

0.013

0.019 0.014

0.020

0.032

0.026

DETAIL

EXTERNAL LEAD DESIGN

OPTION 1 OPTION 2

114

15 28

0.004

SEATING PLANE

NOTE :

1. JEDEC STD REF MO088

2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH

MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.006 in (0.152 mm) PER SIDE

3. DIMENSIONS IN INCHES

51-85031-*C

28-Lead (300-Mil) Molded SOJ (51-85031)

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CY7C1007BN

Document #: 001-06426 Rev. ** Page 7 of 7

Document History Page

Document Title: CY7C107BN/CY7C1007BN 1M x 1 Static RAM

Document Number: 001-06426

REV. ECN NO. Issue

Date Orig. of

Change Description of Change

** 423847 See ECN NXR New Data Sheet

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