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參數資料
| 型號： | CY2291SC-XXX |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | Three-PLL General Purpose EPROM Programmable Clock Generator |
| 中文描述： | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO20 |
| 封裝： | 0.300 INCH, MO-119, SOIC-20 |
| 文件頁數： | 2/13頁 |
| 文件大小： | 121K |
| 代理商： | CY2291SC-XXX |
CY2291
2
CLKB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
32XOUT
32K
CLKC
VDD
GND
XTALIN
XTALOUT
XBUF
CLKD
CPUCLK
32XIN
VBATT
SHUTDOWN/OE
S2/SUSPEND
VDD
S1
S0
CLKF
CLKA
20-pin SOIC
15
16
17
18
19
20
CY2291
Pin Configurations
Pin Summary
Name
32XOUT
32K
CLKC
V
DD
GND
XTALIN
[1]
XTALOUT
[1, 2]
XBUF
CLKD
CPUCLK
CLKB
CLKA
CLKF
S0
S1
S2/SUSPEND
SHUTDOWN/OE
Pin Number
1
2
3
4, 16
5
6
7
8
9
10
11
12
13
14
15
17
18
Description
32.768 kHz crystal feedback.
32.768 kHz output (always active if V
BATT
is present).
Configurable clock output C.
Voltage supply.
Ground.
Reference crystal input or external reference clock input.
Reference crystal feedback.
Buffered reference clock output.
Configurable clock output D.
CPU frequency clock output.
Configurable clock output B.
Configurable clock output A.
Configurable clock output F.
CPU clock select input, bit 0.
CPU clock select input, bit 1.
CPU clock select input, bit 2. Optionally enables suspend feature when LOW.
[3]
Places outputs in three-state
[4]
condition and shuts down chip when LOW. Optionally, only
places outputs in three-state
[4]
condition and does not shut down chip when LOW.
Battery supply for 32.768-kHz circuit.
32.768-kHz crystal input.
V
BATT
32XIN
19
20
Notes:
1.
2.
3.
4.
For best accuracy, use a parallel-resonant crystal, C
≈
17 pF or 18 pF.
Float XTALOUT pin if XTALIN is driven by reference clock (as opposed to crystal).
Please refer to application note
“
Understanding the CY2291, CY2292 and CY2295
”
for more information.
The CY2291 has weak pull-downs on all outputs (except 32K). Hence, when a three-state condition is forced on the outputs, the output pins are pulled LOW.
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PDF描述 |
|---|---|
| CY2291SL-XXX | Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291 | Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291F | Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291FI | Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2300 | Phase-Aligned Clock Multiplier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CY2291SI-XXX | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291SL224 | 制造商:CYPRESS 功能描述:* |
| CY2291SL-329 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY2291SL-XXX | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291SXC-161 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Cypress Semiconductor 功能描述: |
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