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參數(shù)資料
| 型號： | ATF16V8C-7XC |
| 廠商： | Atmel |
| 文件頁數(shù)： | 21/23頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PLD 7NS 20TSSOP |
| 標(biāo)準(zhǔn)包裝： | 74 |
| 系列： | 16V8 |
| 可編程類型： | EE PLD |
| 宏單元數(shù)： | 8 |
| 輸入電壓： | 5V |
| 速度： | 7ns |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 管件 |
| 其它名稱： | ATF16V8C7XC |
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-7XI | 功能描述:SPLD - 簡單可編程邏輯器件 ASICS 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 |
| ATF16V8C-7XU | 功能描述:SPLD - 簡單可編程邏輯器件 16V8 FAM 300 GATE SPLD STD PWR 7NS 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 |
| ATF16V8CZ | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance E2 PLD |
| ATF16V8CZ_05 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Highperformance EE PLD |
| ATF16V8CZ-12JC | 功能描述:SPLD - 簡單可編程邏輯器件 250 GATE ZERO PWR 5V - 12NS COM TEMP 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 |
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