Cypress CY2048WAF Manual Do Utilizador

Document #: 38-07738 Rev. *A

Page 3 of 7

(Above which the useful life may be impaired.
For user guidelines, not tested.)

Supply Voltage (V

DD

) ........................................–0.5 to +7.0V

DC Input Voltage ...................................... –0.5V to V

DD 

+ 0.5

Output Short Circuit Current ..................................... ± 50 mA

Storage Temperature (Non-condensing) .... –55°C to +125°C

Junction Temperature ................................  –40°C to +125°C

Data Retention @ Tj = 125°C................................> 10 years

ESD (Human Body Model) MIL-STD-883................. > 2000V

1. Not 100% tested.

[1]

F

NOM

Nominal crystal frequency

Fundamental mode, AT cut

10

–

48

MHz

R

1

Equivalent series resistance (ESR)

Fundamental mode

–

–

40

Ω

R

3

/R

1

Ratio of third overtone mode ESR to 
fundamental mode ESR

Ratio used because typical R

1

 values are 

much less than the maximum spec

4.5

–

–

–

C

0

Crystal shunt capacitance

–

–

5

pF

C

1

Crystal motional capacitance

2

–

–

fF

V

DD

Operating Voltage

2.7

–

3.6

V

T

J

Junction Temperature

–40

–

125

°C

C

XIN

Capacitance XIN, all tuning caps OFF

–

10

–

pF

C

XOUT

Capacitance XOUT, all tuning caps OFF

–

10

–

pF

C

L

All tuning Caps OFF

4

5

6

pF

All tuning Caps ON

9.2

10

11.4

pF

C

OUT

Output Load Capacitance

–

–

15

pF

t

RAMP

Power-up time for V

DD

 to reach minimum specified 

voltage (power ramps must be monotonic)

0.05

–

500

ms

T

S

Start up time, 90% V

DD

 to valid frequency on output

–

–

10

ms

TJ = –40 to 125°C over the operating range

V

IL

Input Low Voltage

CMOS Levels

–

–

20

%VDD

V

IH

Input High Voltage

CMOS Levels

80

–

–

%VDD

V

OL

Output Low Voltage

V

DD

 = 2.7V–3.6V, I

OL

 = 8 mA

–

–

0.4

V

V

OH

Output High Voltage

V

DD

 = 2.7V–3.6V, I

OL

 = –8 mA

V

DD

–0.4

–

–

V

I

IL

Input Low Current

Input = V

SS

–

1

10

µA

I

IH

Input High Current

Input = V

DD

–

1

10

µA

I

OZL

Output Leakage Current

Output = V

SS

–

1

10

µA

I

OZH

Output Leakage Current

Output = V

DD

–

–

50

µA

I

DD

Power Supply Current

No Load, V

DD

 = 3.3V, 48 MHz

–

–

20

mA

I

PD

Power Down Current

PD# = 0V

–

–

25

µA

R

UP

Input Pull-up resistor

V

IN

 = V

SS

 

1

3

6

M

Ω

V

IN

> = 0.8V

DD

80

120

150

k

Ω

R

DN

Output Pull-down resistor

V

IN 

= 0.5V

DD

500

900

1500

k

Ω

C

IN

Input Pin Capacitance

PD#/OE pin

–

–

7

pF

R

F

Crystal Feedback R

XIN = 0

300

–

800

k

Ω