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參數(shù)資料
| 型號： | PSD954F2V-90J |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Advanced PFC/PWM Combination Controllers 20-SOIC -40 to 105 |
| 中文描述： | Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器 |
| 文件頁數(shù)： | 42/94頁 |
| 文件大小： | 476K |
| 代理商： | PSD954F2V-90J |
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PSD9XX Family
Preliminary Information
38
The
PSD9XX
Functional
Blocks
(cont.)
Configuration
80C251
Read/Write
Pins
Connecting to
PSD9XX
Pins
Page Mode
WR
RD
PSEN
CNTL0
CNTL1
CNTL2
Non-Page Mode, 80C31 compatible
A
[
7:0
]
multiplex with D
[
7:0
}
1
2
WR
PSEN only
CNTL0
CNTL1
Non-Page Mode
A
[
7:0
]
multiplex with D
[
7:0
}
3
WR
PSEN only
CNTL0
CNTL1
Page Mode
A
[
15:8
]
multiplex with D
[
7:0
}
4
WR
RD
PSEN
CNTL0
CNTL1
CNTL2
Page Mode
A
[
15:8
]
multiplex with D
[
7:0
}
Table 19. 80C251 Configurations
9.3.3.3 80C51XA
The Philips 80C51XA microcontroller family supports an 8- or 16-bit multiplexed bus that
can have burst cycles. Address bits A[3:0] are not multiplexed, while A[19:4] are
multiplexed with data bits D[15:0] in 16-bit mode. In 8-bit mode, A[11:4] are multiplexed
with data bits D[7:0].
The 80C51XA can be configured to operate in eight-bit data mode. (shown in Figure 17).
The 80C51XA improves bus throughput and performance by executing Burst cycles for
code fetches. In Burst Mode, address A19-4 are latched internally by the PSD9XX, while
the 80C51XA changes the A3-0 lines to fetch up to 16 bytes of code. The PSD access
time is then measured from address A3-A0 valid to data in valid. The PSD bus timing
requirement in Burst Mode is identical to the normal bus cycle, except the address setup
and hold time with respect to ALE does not apply.
9.3.3.4 68HC11
Figure 18 shows an interface to a 68HC11 where the PSD9XX is configured in 8-bit
multiplexed mode with E and R/W settings. The DPLD can generate the READ and WR
signals for external devices.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD954F2V-90M | 功能描述:SPLD - 簡單可編程邏輯器件 PQFP-52 3V 2M 90NS RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24 |
| PS-DA0104-01 | 制造商:POWER-SYSTEMS 制造商全稱:Power Systems GmbH+Co.KG 功能描述:DC-AC INVERTER UNIT 4 W SINGLE OUTPUTS |
| PS-DA0104-01S | 制造商:POWER-SYSTEMS 制造商全稱:Power Systems GmbH+Co.KG 功能描述:DC-AC INVERTER UNIT 4 W SINGLE OUTPUTS |
| PS-DA0105-01 | 制造商:POWER-SYSTEMS 制造商全稱:Power Systems GmbH+Co.KG 功能描述:DC-AC INVERTER UNIT 4 W SINGLE OUTPUTS |
| PS-DA0105-01S | 制造商:POWER-SYSTEMS 制造商全稱:Power Systems GmbH+Co.KG 功能描述:DC-AC INVERTER UNIT 4 W SINGLE OUTPUTS |
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