参数资料
| 型号： | ATF16V8C-7SU |
| 厂商： | Atmel |
| 文件页数： | 21/23页 |
| 文件大小： | 0K |
| 描述： | IC PLD EE 7.5NS 20-SOIC |
| 标准包装： | 37 |
| 系列： | 16V8 |
| 可编程类型： | EE PLD |
| 宏单元数： | 8 |
| 输入电压： | 5V |
| 速度： | 7ns |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
7
0425H–PLD–3/11
Atmel ATF16V8C
11.
Security fuse usage
A single fuse is provided to prevent unauthorized copying of the ATF16V8C fuse patterns. Once programmed, fuse verify
and preload are inhibited. However, the 64-bit user signature remains accessible.
The security fuse will be programmed last, as its effect is immediate.
12.
Input and I/O pin-keeper circuits
The ATF16V8C contains internal input and I/O pin-keeper circuits. These circuits allow each ATF16V8C pin to hold its
previous value even when it is not being driven by an external source or by the device’s output buffer. This helps insure
that all logic array inputs are at known, valid logic levels. This reduces system power by preventing pins from floating to
indeterminate levels. By using pin-keeper circuits rather than pull-up resistors, there is no DC current required to hold the
pins in either logic state (high or low).
These pin-keeper circuits are implemented as weak feedback inverters, as shown in the Input Diagram below. These
keeper circuits can easily be overdriven by standard TTL- or CMOS-compatible drivers. The typical overdrive current
required is 40μA.
Figure 13.
Input diagram
Figure 14.
I/O diagram
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| ATF16V8C-7XC | 功能描述:SPLD - 简单可编程逻辑器件 16V8 FAM 300 GATE SPLD STD PWR 7NS RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24 |
| ATF16V8C-7XI | 功能描述:SPLD - 简单可编程逻辑器件 ASICS RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24 |
| ATF16V8C-7XU | 功能描述:SPLD - 简单可编程逻辑器件 16V8 FAM 300 GATE SPLD STD PWR 7NS RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24 |
| ATF16V8CZ | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:High Performance E2 PLD |
| ATF16V8CZ_05 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Highperformance EE PLD |
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