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參數(shù)資料
| 型號： | PSD834F2V |
| 英文描述： | Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit + 256 Kbit Dual Flash Memories and 64 Kbit SRAM(2M位+256K位雙路閃速存儲器和64K位靜態(tài)RAM,閃速PSD,3.3V電源,用于8位MCU.) |
| 中文描述： | 閃光私營部門，3.3V電源，為8位微控制器2兆256千位雙閃存和64千位的SRAM（200萬位256K位雙路閃速存儲器和64K的位靜態(tài)內(nèi)存，閃速私營部門，3.3V的電源，用于8位微控制器。） |
| 文件頁數(shù)： | 32/89頁 |
| 文件大小： | 522K |
| 代理商： | PSD834F2V |
PSD834F2V
32/89
Product Term Allocator
The CPLD has a Product TermAllocator. The PS-
Dabel compiler uses theProduct Term Allocatorto
borrow and place product terms from one macro-
cell to another. The following list summarizes how
product terms are allocated:
I
McellAB0-McellAB7 all have three native
product terms and may borrow up to six more
I
McellBC0-McellBC3 all have fournative product
terms and may borrow up to five more
I
McellBC4-McellBC7 all have fournative product
terms and may borrow up to six more.
Each macrocell may only borrow product terms
from certain other macrocells. Product terms al-
ready inuse by one macrocell are not available for
another macrocell.
If an equation requires more product terms than
are available to it, then “external” product terms
are required,which consume other Output Macro-
cells (OMC). If external product terms are used,
extra delay is added for the equation that required
the extra product terms.
This is called product term expansion. PSDsoft
Express performs this expansion as needed.
Loading and Reading the Output Macrocells
(OMC).
The Output Macrocells (OMC) block oc-
cupies a memory location in the MCU address
space, as defined by the CSIOP block (see the
section entitled “I/O Ports”, on page 45). The flip-
flops in each of the 16 Output Macrocells (OMC)
can be loaded from the data bus by a MCU. Load-
ing the Output Macrocells (OMC) with data from
the MCU takes priority over internal functions. As
such, the preset, clear, and clock inputs to the flip-
flop can be overridden by the MCU. The ability to
load the flip-flops and read them back is useful in
such applications as loadable counters and shift
registers, mailboxes, and handshaking protocols.
Data can be loaded to the Output Macrocells
(OMC) on the trailing edge of Write Strobe (WR,
CNTL0) (edge loading) or during the time that
Write Strobe (WR, CNTL0) is active (level load-
ing). The methodof loading isspecified in PSDsoft
Express Configuration.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PSD834F2 | Flash In-System Programmable (ISP) Peripherals For 8-bit MCUs(用于8位MCUs的閃速ISP外圍) |
| PSD835G2 | Configurable Memory System on a Chip for 8-Bit Microcontrollers(8位微控制器片上存儲器可編程外設(shè)) |
| PSD835G2 | 100V 100kRad Hi-Rel Single N-Channel TID Hardened MOSFET in a TO-254AA Tabless package; Similar to IRHMJ57160 with optional Total Dose Rating of 1000kRads |
| PSD835G2V | 150V 100kRad Hi-Rel Single N-Channel TID Hardened MOSFET in a SMD-2 package. Also available with 300 kRads Total Dose Rating.; Similar to IRHNA67164 with optional Total Dose Rating of 300 kRads. |
| PSD835G2-B-12B81 | Configurable Memory System on a Chip for 8-Bit Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD834F2V-15J | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 150ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD834F2V-15M | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 150ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD834F2V-20JI | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 200ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池數(shù)量:128 最大工作頻率:333 MHz 延遲時間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD834F2V-20MI | 功能描述:SPLD - 簡單可編程邏輯器件 3.0V 2M 200ns 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 |
| PSD835G2-70U | 功能描述:靜態(tài)隨機(jī)存取存儲器 5.0V 4M 70ns RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
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