參數(shù)資料
型號： PCK2001
廠商： NXP Semiconductors N.V.
英文描述： 14.318-150 MHz I 2 C 1:18 Clock Buffer(14.318-150 MHz IIC 1:18時鐘緩沖器)
中文描述： 14.318-150兆赫的I 2 C 1:18時鐘緩沖器（14.318-150兆赫進(jìn)口證1:18時鐘緩沖器）
文件頁數(shù)： 2/13頁
文件大?。?/td> 80K
代理商： PCK2001
Philips Semiconductors
Product specification
PCK2001
14.318–150 MHz I
2
C 1:18 Clock Buffer
2
1999 Jul 06
853-2072 21924
FEATURES
HIGH speed, LOW noise non-inverting 1–18 buffer
Typically used to support four SDRAM DIMMs
Multiple V
DD
, V
SS
pins for noise reduction
3.3V operation
Separate 3-State pin for testing
ESD protection exceeds 2000V per Standard 801.2
Optimized for 66MHz, 100MHz and 133MHz operation
175 ps skew outputs
Available in 48-pin SSOP package
See PCK2001M for mobile (reduced pincount) 28-pin 1-10 buffer
version
Individual clock output enable/disable via I
2
C
DESCRIPTION
The PCK2001 is a 1–18 fanout buffer used for 133/100 MHz CPU,
66/33 MHz PCI, 14.318 MHz REF, or 133/100/66 MHz SDRAM
clock distribution. 18 outputs are typically used to support up to 4
SDRAM DIMMS commonly found in desktop, workstation or server
applications.
All clock outputs meet Intel’s drive, rise/fall time, accuracy, and skew
requirements. An I
2
C interface is included to allow each output to be
enabled/disabled individually. An output disabled via the I
2
C
interface will be held in the LOW state. In addition, there is an OE
input which 3-States all outputs.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PLH
t
PHL
Propagation delay
BUF_IN to BUF_OUT
n
Rise time
V
CC
= 3.3V, CL = 30pF
2.5
2.5
1.0
ns
t
r
t
f
V
CC
= 3.3V, CL = 30pF
V
CC
= 3.3V, CL = 20pF
V
CC
= 3.465V
ns
Fall time
700
ps
μ
A
I
CC
Total supply current
50
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
0
°
C to +70
°
C
ORDER CODE
DRAWING NUMBER
48-Pin Plastic SSOP
PCK2001 DL
SOT370-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
21
22
23
24
41
42
43
44
45
46
47
48
RESERVED
RESERVED
V
DD0
BUF_OUT0
BUF_OUT1
V
SS0
V
DD1
BUF_OUT3
BUF_OUT2
V
SS1
BUF_IN
V
DD2
BUF_OUT4
BUF_OUT5
V
SS2
V
DD3
BUF_OUT6
BUF_OUT7
V
SS3
V
DD4
BUF_OUT16
V
SS4
V
DDI2C
SDA
RESERVED
RESERVED
V
DD9
BUF_OUT15
BUF_OUT14
V
SS9
V
DD8
BUF_OUT13
BUF_OUT12
V
SS8
OE
V
DD7
BUF_OUT11
BUF_OUT10
V
SS7
V
DD6
BUF_OUT9
BUF_OUT8
V
SS6
V
DD5
BUF_OUT17
V
SS5
V
SSI2C
SCL
SW00248
P
I
2
C is a trademark of Philips Semiconductors Corporation.
PIN DESCRIPTION
PIN
NUMBER
4, 5, 8, 9
I/O
TYPE
Output
SYMBOL
FUNCTION
BUF_OUT (0–3)
Buffered clock outputs
13, 14, 17,
18
31, 32, 35,
36
40, 41, 44,
45
Output
BUF_OUT (4–7)
Buffered clock outputs
Output
BUF_OUT
(8–11)
BUF_OUT
(12–15)
BUF_OUT
(16–17)
BUF_IN
Buffered clock outputs
Output
Buffered clock outputs
21, 28
Output
Buffered clock outputs
11
Input
Buffered clock input
38
Input
OE
Active high output
enable
I
2
C serial data
I
2
C serial clock
24
I/O
SDA
25
Input
SCL
3, 7, 12, 16,
20, 29, 33,
37, 42, 46
Input
V
DD (0–9)
3.3V Power supply
6, 10, 15,
19, 22,
27, 30, 34,
39, 43
Input
V
SS (0–9)
Ground
23
Input
V
DDI2C
3.3V I
2
C Power
supply
I
2
C Ground
26
Input
V
SSI2C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCK2001DL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:14.318-150 MHz I2C 1:18 Clock Buffer
PCK2001DL,112 功能描述:時鐘緩沖器 PII CLOCK DRIVER RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel
PCK2001DL,118 功能描述:時鐘緩沖器 PII CLOCK DRIVER RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel
PCK2001DL-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Eighteen Distributed-Output Clock Driver
PCK2001M 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:14.318-150 MHz I2C 1:10 Clock Buffer
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