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参数资料
| 型号： | M66004SP |
| 元件分类： | 显示控制器 |
| 英文描述： | 36 X 16 DOTS FLUORESCENT DSPL CTRL, PDIP64 |
| 封装： | PLASTIC, DIP-64 |
| 文件页数： | 3/15页 |
| 文件大小： | 3009K |
| 代理商： | M66004SP |
M66238FP
REJ03F0268-0200 Rev.2.00 Mar 18, 2008
Page 11 of 14
CKO/PLLO Output Frequency Range
The M66238 requires an internal VCO oscillator frequency of 25 MHz to 50 MHz.
Settings of dividing ratio K of 12-bit divider and dividing ratio N of 15-bit counter are required in order to determine
the internal VCO oscillator frequency. The relation between the settings and the internal VCO oscillator frequency is
shown below.
Oscillator frequency
K
11
k = 0
fVCO =
(MHz)
K =
Σ (Dk × 2k)
fin
× N
26
n = 12
N =
Σ (Dn × 2n12)
Note: 3. Setting of fin / K
≥ 100 kHz is recommended in consideration of the frequency accuracy characteristics of
PLL output.
Therefore, set the division ratio K of the 12-bit divider and the division ratio N of the 15-bit counter to meet
the following conditions:
25 MHz
≤ fvco ≤ 50 MHz
In addition, for PLLO and CKO, setting the division ratios of the sync/division circuit (synchronous clock
generating area) to 1/1, 1/2, 1/4, 1/8, 1/16, 1/32 will allow the frequencies of 0.78 Hz to 50 MHz to be
accommodated.
相关PDF资料 |
PDF描述 |
|---|---|
| M66004SP | 36 X 16 DOTS FLUORESCENT DSPL CTRL, PDIP64 |
| M66238FP | 50 MHz, OTHER CLOCK GENERATOR, PDSO32 |
| M66291GP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| M66291GP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| M66596FP | UNIVERSAL SERIAL BUS CONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M66005-0001AHP | 制造商:Renesas Electronics Corporation 功能描述: |
| M66006FP | 制造商:Panasonic Industrial Company 功能描述:IC |
| M66006P | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:12-BIT I/O EXPANDER |
| M66007FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:12-BIT INPUT EXPANDER |
| M66007P | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:12-BIT INPUT EXPANDER |
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