Philips pck2001m DATASHEETS

INTEGRATED CIRCUITS

PCK2001M

14.318-150 MHz I

Product specification Supersedes data of 1999 Jul 06

 

2

C 1:10 clock buffer

2000 May 17

Philips Semiconductors Product specification

PCK2001M14.318–150 MHz I2C 1:10 clock buffer

FEA TURES

•Mobile (reduced pincount) version of PCK2001

•Typically used to support two SDRAM DIMMs

•28-pin SSOP package

•Same general features as PCK2001

•See PCK2001 for 48-pin 1-18 buffer part supporting up to

4 SDRAM DIMMs

•Optimized for 66 MHz, 100 MHz and 133 MHz operation

•175 ps skew outputs

•Individual clock output enable/disable via I

DESCRIPTION

The PCK2001M is a 1–10 fanout buffer used for 133/100 MHz CPU, 66/33 MHz PCI, 14.318 MHz REF, or 133/100/66 MHz SDRAM clock distribution. 10 outputs are typically used to support up to 2 SDRAM DIMMs commonly found in laptop or mobile applications. The PCK2001M has the same features and operating characteristics of the PCK2001 and is available in the SSOP 28 pin package.

2

C

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS TYPICAL UNIT

t t

I

PLH PHL

t t

CC

r f

Propagation delay BUF_IN to BUF_OUT

n

VCC = 3.3 V, CL = 30 pF

2.5

2.5 Rise time VCC = 3.3 V, CL = 30 pF 1.0 ns Fall time VCC = 3.3 V, CL = 20 pF 700 ps Total supply current VCC = 3.465 V 50 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER

28-Pin Plastic SSOP 0°C to +70°C PCK2001M DB SOT341–1

PIN CONFIGURATION

V

1

V

DD0

BUF_OUT0 BUF_OUT15

BUF_OUT1

BUF_OUT2 BUF_OUT3

BUF_IN

BUF_OUT16 BUF_OUT17

Intel and Pentium are registered trademarks of Intel Corporation.

2

I

C is a trademark of Philips Semiconductors Corporation.

227 3 4

V

SS0

V

5

DD1

6 7 8

V

SS1

9

10

V

DD4

11 12 17

V

SS4

13 16V

DDI2C

14 15SDA

TOP VIEW

28

DD9

BUF_OUT14

26

V

25

SS9

24

V

DD8

23

BUF_OUT13

22

BUF_OUT12

21

V

SS8

20 19 18

OE V

DD5

V

SS5

V

SSI2C

SCL

SA00447

PCK2001M

PIN DESCRIPTION

NUMBER

2, 3, 6, 7 Output

22, 23, 26,

27

11, 18 Output

9 Input BUF_IN Buffered clock input 20 Input OE Active high ouput enable 14 I/O SDA I2C serial data 15 Input SCL I2C serial clock

1, 5, 10,

19, 24, 28

4, 8, 12,

17, 21, 25

13 Input V 16 Input V

I/O

TYPE

Output

Input V

SYMBOL FUNCTION

BUF_OUT

(0–3)

BUF_OUT

(12–15)

BUF_OUT

(16–17)

DD (0,1,4,5,8,9)

SS (0,1,4,5,8,9)

DDI2C DDI2C

Buffered clock outputs

3.3 V power supply

Ground

3.3 V I2C power supply I2C ground

ns

2000 May 17 853-2120 23685

2

Philips Semiconductors Product specification

SYMBOL

PARAMETER

CONDITION

UNIT

SYMBOL

PARAMETER

CONDITIONS

UNIT

2

14.318–150 MHz I

C 1:10 clock buffer

PCK2001M

FUNCTION TABLE

OE BUF_IN I2CEN BUF_OUTn

L X X Z H L X L H H H H H H L L

ABSOLUTE MAXIMUM RA TINGS

In accordance with the Absolute Maximum Rating System (IEC 134) Voltages are referenced to V

V

DD

I

IK

V

I

OK

V

O

I

O

T

STG

P

TOT

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability .

2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

DC 3.3 V supply voltage –0.5 +4.6 V

DC input diode current VI < 0 –50 mA

DC output diode current VO > VDD or VO < 0 ±50 mA

DC output source or sink current VO >= 0 to V

Storage temperature range –65 +150 °C

Power dissipation per package

plastic medium-shrink SO (SSOP)

(VSS = 0 V)

SS

DC input voltage Note 2 –0.5 5.5 V

DC output voltage Note 2 –0.5 VCC + 0.5 V

1, 2

DD

For temperature range: 0 to +70°C

above +55°C derate linearly with 11.3mW/K

LIMITS

MIN MAX

±50 mA

850 mW

RECOMMENDED OPERATING CONDITIONS

LIMITS

MIN MAX

V

T

C

V

amb

DD

L

I

O

Operating ambient temperature range in free air 0 +70 °C

DC 3.3 V supply voltage 3.135 3.465 V

Capacitive load 20 30 pF

DC input voltage range 0 V

DC output voltage range 0 V

DD DD

V V

2000 May 17

3

Philips Semiconductors Product specification

TEST CONDITIONS

IOHOutput HIGH current

mA

IOLOutput LOW current

mA

2

14.318–150 MHz I

C 1:10 clock buffer

PCK2001M

DC CHARACTERISTICS

LIMITS

T

SYMBOL PARAMETER

V

IH

V

IL

V

OH

V

OL

HIGH level input voltage 3.135 to 3.465 2.0 VDD + 0.3 V

LOW level input voltage 3.135 to 3.465 VSS – 0.3 0.8 V

3.3 V output HIGH voltage 3.135 to 3.465 IOH = –1 mA 2.4 – V

3.3 V output LOW voltage 3.135 to 3.465 IOL= 1 mA – 0.4 V

p

±I

I

±I

OZ

I

CC

∆I

CC

Input leakage current 3.465 – 5 µA

3-State output OFF-State

current

Quiescent supply current 3.465 VI = VDD or GND IO = 0 – 100 µA

Additional quiescent supply

current given per control pin

VDD(V) OTHER MIN MAX

3.135 to 3.465 V

3.465 V

3.135 to 3.465 V

= 2.0 V –54 –

OUT

= 3.135 V – –46

OUT

= 1.0 V 54 –

OUT

= 0.4 V – 53

OUT

= VDDor GND IO = 0 – 10 µA

OUT

= VDD– 0.6 V IO = 0 – 500 µA

I

= 0°C to +70°C UNIT

amb

2000 May 17

4

Philips Semiconductors Product specification

(V)

2

14.318–150 MHz I

C 1:10 clock buffer

PCK2001M

SDRAM CLOCK OUTPUT BUFFER PULL-UP CHARACTERISTICS

PULL-UP

VOLTAGE

MIN TYP MAX

0 –72 –116 –198 1 –72 –116 –198

1.40 –68 –110 –188

1.50 –67 –107 –184

1.65 –64 –103 –177

1.80 –60 –98 –170

2.00 –54 –90 –157

2.40 –39 –69 –126

2.60 –30 –56 –107

3.135 0 –15 –46

3.30 0 –23

3.465 0

I

(mA)

SDRAM PULL-UP

I

OH

(mA)

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5

0

–20

–40

–60

–80

–100

–120

–140

–160

–180

–200

V

(V)

OUT

MIN TYP MAX

SW00249

2000 May 17

5