CY7C1355C 查看數據表（PDF） - Cypress Semiconductor

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CY7C1355C

9-Mbit (256K x 36/512K x 18) Flow-Through SRAM with NoBL™ Architecture

Cypress Semiconductor 

CY7C1355C

CY7C1357C

3.3V TAP AC Test Conditions

Input pulse levels ................................................ VSS to 3.3V

Input rise and fall times ................................................... 1 ns

Input timing reference levels ...........................................1.5V

Output reference levels...................................................1.5V

Test load termination supply voltage...............................1.5V

3.3V TAP AC Output Load Equivalent

1.5V

2.5V TAP AC Test Conditions

Input pulse levels................................................. VSS to 2.5V

Input rise and fall time .....................................................1 ns

Input timing reference levels......................................... 1.25V

Output reference levels ................................................ 1.25V

Test load termination supply voltage ............................ 1.25V

2.5V TAP AC Output Load Equivalent

1.25V

TDO

ZO= 50Ω

50Ω

20pF

TDO

ZO= 50Ω

50Ω

20pF

TAP DC Electrical Characteristics And Operating Conditions (0°C < TA < +70°C; VDD = 3.3V ± 0.165V unless

otherwise noted)[12]

Parameter

VOH1

VOH2

VOL1

VOL2

VIH

VIL

IX

Description

Output HIGH Voltage

Conditions

IOH = –4.0 mA, VDDQ = 3.3V

IOH = –1.0 mA, VDDQ = 2.5V

Output HIGH Voltage IOH = –100 µA

Output LOW Voltage

Output LOW Voltage

IOL = 8.0 mA

IOL = 8.0 mA

IOL = 100 µA

Input HIGH Voltage

Input LOW Voltage

Input Load Current GND < VIN < VDDQ

VDDQ = 3.3V

VDDQ = 2.5V

VDDQ = 3.3V

VDDQ = 2.5V

VDDQ = 3.3V

VDDQ = 2.5V

VDDQ = 3.3V

VDDQ = 2.5V

VDDQ = 3.3V

VDDQ = 2.5V

Min.

2.4

2.0

2.9

2.1

2.0

1.7

–0.5

–0.3

–5

Max.

Unit

V

V

V

V

0.4

V

0.4

V

0.2

V

0.2

V

VDD + 0.3

V

VDD + 0.3

V

0.7

V

0.7

V

5

µA

Identification Register Definitions

Instruction Field

Revision Number (31:29)

Device Depth (28:24)

Device Width (23:18)

Cypress Device ID (17:12)

Cypress JEDEC ID Code (11:1)

ID Register Presence Indicator (0)

CY7C1355C

(256Kx36)

010

01010

001001

100110

00000110100

1

CY7C1357C

(512Kx18)

010

01010

001001

010110

00000110100

1

Description

Describes the version number

Reserved for Internal Use

Defines memory type and architecture

Defines width and density

Allows unique identification of SRAM vendor

Indicates the presence of an ID register

Note:

12. All voltages referenced to VSS (GND).

Document #: 38-05539 Rev. *E

Page 14 of 28

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