PCK2001M データシートの表示（PDF） - Philips Electronics
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PCK2001M Datasheet PDF : 13 Pages
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Philips Semiconductors
14.318–150 MHz I2C 1:10 Clock Buffer
Product specification
PCK2001M
FEATURES
• Mobile (reduced pincount) version of PCK2001
• Typically used to 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 66MHz, 100MHz and 133MHz operation
• 175 ps skew outputs
• Individual clock output enable/disable via I2C
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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
tPHL
tr
tf
ICC
Propagation delay
BUF_IN to BUF_OUTn
Rise time
Fall time
Total supply current
CONDITIONS
VCC = 3.3V, CL = 30pF
VCC = 3.3V, CL = 30pF
VCC = 3.3V, CL = 20pF
VCC = 3.465V
ORDERING INFORMATION
PACKAGES
28-Pin Plastic SSOP
TEMPERATURE RANGE
0°C to +70°C
ORDER CODE
PCK2001M DB
TYPICAL
2.5
2.5
1.0
700
50
UNIT
ns
ns
ps
µA
DRAWING NUMBER
SOT341–1
PIN CONFIGURATION
VDD0 1
BUF_OUT0 2
BUF_OUT1 3
28 VDD9
27 BUF_OUT15
26 BUF_OUT14
VSS0 4
VDD1 5
BUF_OUT2 6
25 VSS9
24 VDD8
23 BUF_OUT13
BUF_OUT3 7
22 BUF_OUT12
VSS1 8
BUF_IN 9
21 VSS8
20 OE
VDD4 10
BUF_OUT16 11
19 VDD5
18 BUF_OUT17
VSS4 12
VDDI2C 13
SDA 14
TOP VIEW
17 VSS5
16 VSSI2C
15 SCL
SA00447
Intel and Pentium are registered trademarks of Intel Corporation.
I2C is a trademark of Philips Semiconductors Corporation.
PIN DESCRIPTION
PIN
NUMBER
I/O
TYPE
2, 3, 6, 7 Output
22, 23, 26, 27 Output
11, 18
9
20
14
15
1, 5, 10, 19,
24, 28
4, 8, 12, 17,
21, 25
13
16
Output
Input
Input
I/O
Input
Input
Input
Input
Input
SYMBOL
BUF_OUT
(0–3)
BUF_OUT
(12–15)
BUF_OUT
(16–17)
BUF_IN
OE
SDA
SCL
VDD (0–9)
VSS (0–9)
VDDI2C
VDDI2C
FUNCTION
Buffered clock outputs
Buffered clock outputs
Buffered clock outputs
Buffered clock input
Active high ouput enable
I2C serial data
I2C serial clock
3.3V power supply
Ground
3.3V I2C power supply
I2C ground
1999 Jul 06
2
853-2120 21924
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