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参数资料
| 型号： | ATF1500A-12AC |
| 厂商： | Atmel |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | IC CPLD 12NS 44TQFP |
| 标准包装： | 154 |
| 系列： | ATF15xx |
| 可编程类型： | 系统内可编程（最少 100 次编程/擦除循环） |
| 最大延迟时间 tpd(1)： | 12.0ns |
| 电压电源 - 内部： | 4.75 V ~ 5.25 V |
| 宏单元数： | 32 |
| 输入/输出数： | 32 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-TQFP |
| 供应商设备封装： | 44-TQFP（10x10） |
| 包装： | 托盘 |
| 其它名称： | ATF1500A12AC |
ATF1500A(L)
5
In addition to D, T, JK and SR operation, the flip-flop can
also be configured as a flow-through latch. In this mode,
data passes through when the clock is high and is latched
when the clock is low.
The clock itself can be either the global CLK pin or an indi-
vidual product term. The flip-flop changes state on the
clock’s rising edge. When the CLK pin is used as the clock,
one of the macrocell product terms can be selected as a
clock enable. When the clock enable function is active and
the enable signal (product term) is low, all clock edges are
ignored.
The flip-flop’s asynchronous reset signal (AR) can be either
the pin global clear (GCLR), a product term, or always off.
AR can also be a logic OR of GCLR with a product term.
The asynchronous preset (AP) can be a product term or
always off.
Output Select and Enable
The ATF1500A macrocell output can be selected as regis-
tered or combinatorial. When the output is registered, the
same registered signal is fed back internally to the global
bus. When the output is combinatorial, the buried feedback
can be either the same combinatorial signal or it can be the
register output if the separate product term is chosen as
the flip-flop input.
The output enable multiplexer (MOE) controls the output
enable signals. Any buffer can be permanently enabled for
simple output operation. Buffers can also be permanently
disabled to allow use of the pin as an input. In this configu-
ration all the macrocell resources are still available, includ-
ing the buried feedback, expander and CASCADE logic.
The output enable for each macrocell can also be selected
as either of the two OE pins or as an individual product
term.
Global/Regional Busses
The global bus contains all Input and I/O pin signals as well
as the buried feedback signal from all 32 macrocells.
Together with the complement of each signal, this provides
a 68-bit bus as input to every product term. Having the
entire global bus available to each macrocell eliminates
any potential routing problems. With this architecture
designs can be modified without requiring pinout changes.
Each macrocell also generates a foldback product term.
This signal goes to the regional bus, and is available to 16
macrocells. The foldback is an inverse polarity of one of the
macrocell’s product terms. The 16 foldback terms in each
region allow generation of high fan-in sum terms (up to 21
product terms) with little additional delay.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATF1500A-12AI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Highperformance EPLD |
| ATF1500A-12JC | 功能描述:CPLD - 复杂可编程逻辑器件 CPLD 32 MACROCELL CMPTBLE w/F1500 5V RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
| ATF1500A-12JI | 功能描述:CPLD - 复杂可编程逻辑器件 ASICS RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
| ATF1500A-12JU | 制造商:Atmel Corporation 功能描述: |
| ATF1500A-15AC | 功能描述:IC CPLD 15NS 44TQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - CPLD（复杂可编程逻辑器件） 系列:ATF15xx 标准包装:40 系列:ispMACH® 4000C 可编程类型:系统内可编程 最大延迟时间 tpd(1):5.0ns 电压电源 - 内部:1.65 V ~ 1.95 V 逻辑元件/逻辑块数目:32 宏单元数:512 门数:- 输入/输出数:128 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:176-LQFP 供应商设备封装:176-TQFP（24x24） 包装:托盘 |
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