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| 型号： | ATF1500ABV-15AC |
| 厂商： | Atmel |
| 文件页数： | 13/18页 |
| 文件大小： | 0K |
| 描述： | IC CPLD 32 MACROCELL LV 44TQFP |
| 标准包装： | 154 |
| 系列： | ATF15xx |
| 可编程类型： | 系统内可编程（最少 10,000 次编程/擦除循环） |
| 最大延迟时间 tpd(1)： | 15.0ns |
| 电压电源 - 内部： | 3 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 |
4
0723K–PLD–6/05
ATF1500ABV
The ATF1500ABV’s 100% connected global input and feedback architecture simplifies logic
placement and eliminates pinout changes due to design changes. Any Macrocell may be con-
nected to any I/O pin.
The ATF1500ABV has 32 bi-directional I/O pins and four dedicated input pins. Each dedicated
input pin can also serve as a global control signal: register clock, register reset or output enable.
Each of these control signals can be selected for use individually within each macrocell.
Each of the 32 logic macrocells generates a buried feedback, which goes to the global bus.
Each input and I/O pin also feeds into the global bus. Because of this global busing, each of
these signals is always available to all 32 macrocells in the device.
Each macrocell also generates a foldback logic term, which goes to a regional bus. All signals
within a regional bus are connected to all 16 macrocells within the region.
Cascade logic between macrocells in the ATF1500ABV allows fast, efficient generation of com-
plex logic functions. The ATF1500ABV contains four such logic chains, each capable of creating
sum term logic with a fan-in of up to 40 product terms.
4.
Bus-friendly Pin-keeper Input and I/Os
All input and I/O pins on the ATF1500ABV have programmable “data-keeper” circuits. If acti-
vated, when any pin is driven high or low and then subsequently left floating, it will stay at that
previous high or low level.
This circuitry prevents unused input and I/O lines from floating to intermediate voltage levels that
cause unnecessary power consumption and system noise. The keeper circuits eliminate the
need for external pull-up resistors and eliminate their DC power consumption.
Pin-keeper circuits can be disabled. Programming is controlled in the logic design file. Once the
pin-keeper circuits are disabled, normal termination procedures are required for unused inputs
and I/Os.
5.
Speed/Power Management
The ATF1500ABV has several built-in speed and power management features. The
ATF1500ABV contains circuitry that automatically puts the device into a low-power standby
mode when no logic transitions are occurring. This not only reduces power consumption during
inactive periods, but also provides proportional power savings for most applications running at
system speeds below 10 MHz.
All ATF1500ABVs also have an optional pin-controlled power-down mode. In this mode, current
drops to typically 2 mA. When the power-down option is selected, the PD pin is used to power-
down the part. The power-down option is selected in the design source file. When enabled, the
device goes into power-down when the PD pin is high. In the power-down mode, all internal logic
signals are latched and held, as are any enabled outputs. All pin transitions are ignored until the
PD is brought low. When the power-down feature is enabled, the PD cannot be used as a logic
input or output. However, the PD pin’s macrocell may still be used to generate buried foldback
and cascade logic signals.
Each output also has individual slew rate control. This may be used to reduce system noise by
slowing down outputs that do not need to operate at maximum speed. Outputs default to slow
switching, and may be specified as fast switching in the design file.
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相关代理商/技术参数 |
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| ATF1500ABV-15AI | 功能描述:IC CPLD 15NS LOW VOLT TQFP 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 |
| ATF1500ABV-15JC | 功能描述:CPLD - 复杂可编程逻辑器件 1505 Gate 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 |
| ATF1500ABV-15JI | 功能描述:IC CPLD 15NS LOW VOLT PLCC 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 |
| ATF1500ABVL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:High- Performance EE PLD |
| ATF1500ABVL-25AC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:High- Performance EE PLD |
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