- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361772 > W229B Clocks and Buffers PDF資料下載
參數(shù)資料
| 型號(hào)： | W229B |
| 英文描述： | Clocks and Buffers |
| 中文描述： | 時(shí)鐘和緩沖器 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 183K |
| 代理商： | W229B |
W229B
Document #: 38-07223 Rev. *A
Page 13 of 17
AC Electrical Characteristics
[9]
T
A
= 0
°
C to +70
°
C, V
DDQ3
= 3.3V±5%, V
DDQ2
= 2.5V±5%
f
XTL
= 14.31818 MHz
Notes:
11.
12. T
HIGH
is measured at 2.0V for 2.5V outputs, 2.4V for 3.3V outputs.
13. T
is measured at 0.4V for all outputs.
14. The time specified is measured from when V
DDQ3
achieves its nominal operating level (typical condition V
DDQ3
= 3.3V) until the frequency output is stable and
operating within specification.
15. T
RISE
and T
FALL
are measured as a transition through the threshold region V
ol
= 0.4V and V
oh
= 2.0V (1 mA) JEDEC specification for 2.5V outputs, and
V
ol
oh
= 2.4V for 3.3V outputs.
Period, jitter, offset, and skew measured on rising edge at 1.25 for 2.5V clocks and at 1.5V for 3.3V clocks.
Parameter
T
Period
T
HIGH
T
LOW
T
RISE
T
FALL
Description
66.6-MHz Host
Min.
15.0
5.2
5.0
0.4
0.4
100-MHz Host
Min.
10.0
3.0
2.8
0.4
0.4
133-MHz Host
Min.
7.5
1.87
1.67
0.4
0.4
Unit
ns
ns
ns
ns
ns
Notes
11
14
Max.
15.5
N/A
N/A
1.6
1.6
Max.
10.5
N/A
N/A
1.6
1.6
Max.
8.0
N/A
N/A
1.6
1.6
Host/CPUCLK Period
Host/CPUCLK High Time
Host/CPUCLK Low Time
Host/CPUCLK Rise Time
Host/CPUCLK Fall Time
15
15
T
Period
T
HIGH
T
LOW
T
RISE
T
FALL
SDRAM CLK Period
SDRAM CLK High Time
SDRAM CLK Low Time
SDRAM CLK Rise Time
SDRAM CLK Fall Time
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
1.6
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
1.6
10.0
3.0
2.8
0.4
0.4
10.5
N/A
N/A
1.6
1.6
ns
ns
ns
ns
ns
11
14
15
15
T
Period
T
HIGH
T
LOW
T
RISE
T
FALL
APIC 33-MHz CLK Period
APIC 33-MHz CLK High Time
APIC 33-MHz CLK Low Time
APIC CLK Rise Time
APIC CLK Fall Time
30.0
12.0
12.0
0.4
0.4
N/A
N/A
N/A
1.6
1.6
30.0
12.0
12.0
0.4
0.4
N/A
N/A
N/A
1.6
1.6
30.0
12.0
12.0
0.4
0.4
N/A
N/A
N/A
1.6
1.6
ns
ns
ns
ns
ns
11
14
15
15
T
Period
T
HIGH
T
LOW
T
RISE
T
FALL
3V66 CLK Period
3V66 CLK High Time
3V66 CLK Low Time
3V66 CLK Rise Time
3V66 CLK Fall Time
15.0
5.25
5.05
0.5
0.5
16.0
N/A
N/A
2.0
2.0
15.0
5.25
5.05
0.5
0.5
16.0
N/A
N/A
2.0
2.0
15.0
5.25
5.05
0.5
0.5
16.0
N/A
N/A
2.0
2.0
ns
ns
ns
ns
ns
11, 13
14
15
15
T
Period
T
HIGH
T
LOW
T
RISE
T
FALL
PCI CLK Period
PCI CLK High Time
PCI CLK Low Time
PCI CLK Rise Time
PCI CLK Fall Time
30.0
12.0
12.0
0.5
0.5
N/A
N/A
N/A
2.0
2.0
30.0
12.0
12.0
0.5
0.5
N/A
N/A
N/A
2.0
2.0
30.0
12.0
12.0
0.5
0.5
N/A
N/A
N/A
2.0
2.0
ns
ns
ns
ns
ns
11, 12
14
15
15
tp
ZL
, tp
ZH
tp
LZ
, tp
ZH
Output Enable Delay (All outputs)
Output Disable Delay
(All outputs)
All Clock Stabilization from
Power-Up
1.0
1.0
10.0
10.0
1.0
1.0
10.0
10.0
1.0
1.0
10.0
10.0
ns
ns
t
stable
3
3
3
ms
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W22B64A-15 | x4 SRAM |
| W22B64A-20 | x4 SRAM |
| W22B64A-25 | x4 SRAM |
| W22B64AJ-15 | x4 SRAM |
| W22B64AJ-20 | x4 SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W229BH | 制造商:Cypress Semiconductor 功能描述:PLL Frequency Generator Dual 56-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:TIMING DEVICE - Bulk |
| W229BHT | 制造商:Cypress Semiconductor 功能描述:PLL Frequency Generator Dual 56-Pin SSOP T/R 制造商:Rochester Electronics LLC 功能描述:TIMING DEVICE - Bulk |
| W229E12 | 制造商:OMRON INDUSTRIAL AUTOMATION 功能描述:C200H-AD002 Op. Manual DX CODE ZA |
| W22B20001-AZZ00-000 | 制造商:Carling Technologies 功能描述:W-SERIES ROCKER SWITCH - Bulk |
| W22B64A-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SRAM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。