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CY7C1041B

256K x 16 Static RAM

Cypress Semiconductor 

CY7C1041B

Selection Guide

Maximum Access Time

Maximum Operating Current

Maximum CMOS Standby

Current

7C1041B-12 7C1041B-15 7C1041B-17 7C1041B-20 7C1041B-25 Unit

12

15

17

20

25

ns

Com’l

200

190

180

170

160

mA

Ind’l

220

210

200

190

180

Com’l

3

3

3

3

3

mA

Com’l L

-

0.5

0.5

0.5

0.5

Ind’l

-

6

6

6

6

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 to Relative GND[1] .... –0.5V to +7.0V

DC Voltage Applied to Outputs

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

Electrical Characteristics Over the Operating Range

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

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

Operating Range

Range

Commercial

Industrial

Ambient

Temperature[2]

0°C to +70°C

–40°C to +85°C

VCC

5V ± 0.5

Parameter

Description

Test Conditions

VOH

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

VOL

Output LOW Voltage VCC = Min., IOL = 8.0 mA

VIH

Input HIGH Voltage

VIL

Input LOW Voltage[1]

IIX

Input Load Current GND < VI < VCC

IOZ

Output Leakage

GND < VOUT < VCC,

Current

Output Disabled

ICC

VCC Operating

VCC = Max.,

Com’l

Supply Current

f = fMAX = 1/tRC

Ind’l

ISB1

Automatic CE

Max. VCC, CE > VIH

Power-Down Current VIN > VIH or

—TTL Inputs

VIN < VIL, f = fMAX

ISB2

Automatic CE

Max. VCC,

Com’l

Power-Down Current CE > VCC – 0.3V,

—CMOS Inputs

VIN > VCC – 0.3V,

Com’l L

or VIN < 0.3V, f = 0 Ind’l

Notes:

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

2. TA is the case temperature.

7C1041B-12

Min. Max.

2.4

0.4

2.2 VCC

+ 0.5

–0.5 0.8

–1

+1

–1

+1

200

220

40

3

-

-

7C1041B-15

Min. Max.

2.4

0.4

2.2 VCC

+ 0.5

–0.5 0.8

–1

+1

–1

+1

190

210

40

3

0.5

6

7C1041B-17

Min. Max. Unit

2.4

V

0.4 V

2.2 VCC V

+ 0.5

–0.5 0.8 V

–1

+1 mA

–1

+1 mA

180 mA

200 mA

40 mA

3 mA

0.5 mA

6 mA

Document #: 38-05142 Rev. *A

Page 2 of 11

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