CY7C265-50DMB 查看數據表（PDF） - Cypress Semiconductor

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产品描述 (功能)

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CY7C265-50DMB

8K x 8 Registered PROM

Cypress Semiconductor 

CY7C265

AC Test Loads and Waveforms

Test Load for -15 through -25 speeds

5V

OUTPUT

R1 500

(658Ω MIL)

5V

OUTPUT

R1 500Ω

(658Ω MIL)

30 pF

R2 333Ω

(403Ω MIL)

5 pF

R2 333Ω

(403Ω MIL)

INCLUDING

JIG AND

SCOPE

INCLUDING

JIG AND

SCOPE

(a) NormalLoad

(b) High Z Load

Equivalent to: THÉVENIN EQUIVALENT

OUTPUT

RTH 200Ω

250Ω MIL

Test Load for -40 through -50 speeds

5V

OUTPUT

R1 250Ω

5V

OUTPUT

R1 250Ω

30 pF

R2 167Ω

INCLUDING

JIG AND

SCOPE

(c) Normal Load

5 pF

R2 167Ω

INCLUDING

JIG AND

SCOPE

(d) High Z Load

Equivalent to: THÉVENIN EQUIVALENT

OUTPUT

RTH 100Ω

2.0V

3.0V

GND

≤ 5 ns

90%

10%

90%

10%

≤ 5 ns

Switching Characteristics Over the Operating Range[2, 4]

Parameter

tAS

tHA

tCO

tPWC

tSES

tHES

tDI

tRI

tPWI

tCOS

tHZC

tDOE

tHZE

Description

Address Set-Up to Clock

Address Hold from Clock

Clock to Output Valid

Clock Pulse Width

ES Set-Up to Clock

(Sync. Enable Only)

ES Hold from Clock

INIT to Output Valid

INIT Recovery to Clock

INIT Pulse Width

Output Valid from Clock

(Sync. Mode)

Output Inactive from Clock

(Sync. Mode)

Output Valid from E LOW

(Async. Mode)

Output Inactive from E HIGH

(Async. Mode)

7C265-15

7C265-25

7C265-40

7C265-50

Min. Max. Min. Max. Min. Max. Min. Max. Unit

15

25

40

50

ns

0

0

0

0

ns

12

15

20

25

ns

12

15

15

20

ns

12

15

15

15

ns

5

5

5

5

ns

15

18

25

35

ns

12

15

20

25

ns

12

15

25

35

ns

12

15

20

25

ns

12

15

20

25

ns

12

15

20

25

ns

12

15

20

25

ns

Document #: 38-04012 Rev. *A

Page 4 of 11

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