R, tF
參數(shù)資料
型號(hào)： ATF20V8BQL-15PU
廠商： Atmel
文件頁(yè)數(shù)： 18/22頁(yè)
文件大?。?/td> 0K
描述： IC PLD 15NS 24DIP
標(biāo)準(zhǔn)包裝： 15
系列： 20V8
可編程類(lèi)型： EE PLD
宏單元數(shù)： 8
輸入電壓： 5V
速度： 15ns
安裝類(lèi)型： 通孔
封裝/外殼： 24-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 24-PDIP
包裝： 管件
ATF20V8B(Q)(L)
5
Input Test Waveforms and
Measurement Levels
t
R, tF < 5 ns (10% to 90%)
Output Test Loads
Commercial
Note:
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
Power-up Reset
The registers in the ATF20V8Bs are designed to reset dur-
ing power-up. At a point delayed slightly from V
CC crossing
V
RST, all registers will be reset to the low state. As a result,
the registered output state will always be high on power-up.
This feature is critical for state machine initialization. How-
ever, due to the asynchronous nature of reset and the
uncertainty of how V
CC actually rises in the system, the fol-
lowing conditions are required:
1.
The V
CC rise must be monotonic,
2.
After reset occurs, all input and feedback setup
times must be met before driving the clock pin high,
and
3.
The clock must remain stable during t
PR.
Preload of Registered Outputs
The ATF16V8B’s registers are provided with circuitry to
allow loading of each register with either a high or a low.
This feature will simplify testing since any state can be
forced into the registers to control test sequencing. A
JEDEC file with preload is generated when a source file
with vectors is compiled. Once downloaded, the JEDEC file
preload sequence will be done automatically by most of the
approved programmers after the programming.
Electronic Signature Word
There are 64 bits of programmable memory that are always
available to the user, even if the device is secured. These
bits can be used for user-specific data.
Security Fuse Usage
A single fuse is provided to prevent unauthorized copying
of the ATF20V8B fuse patterns. Once programmed, fuse
verify and preload are inhibited. However, the 64-bit User
Signature remains accessible.
The security fuse should be programmed last, as its effect
is immediate.
Programming/Erasing
Programming/erasing is performed using standard PLD
programmers. For further information, see the Configurable
Logic Databook, section titled, “CMOS PLD Programming
Hardware and Software Support.”
Pin Capacitance
f = 1 MHz, T = 25°C
Typ
Max
Units
Conditions
CIN
58
pF
VIN = 0V
C
OUT
68
pF
V
OUT = 0V
Parameter
Description
Typ
Max
Units
tPR
Power-up Reset Time
600
1,000
ns
V
RST
Power-up Reset Voltage
3.8
4.5
V
相關(guān)PDF資料
PDF描述
ATF22LV10C-15XC IC PLD 15NS 24TSSOP
ATF22LV10CZ-25XC IC PLD 25NS 24TSSOP
ATF22V10BQ-15SI IC PLD EE 15NS QTR PWR 24-SOIC
ATF22V10C-15XC IC PLD EE HP 15NS 24-TSSOP
ATF22V10CQZ-20PI IC PLD EE "QZ" PWR 20NS 24-DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATF20V8BQL-15SC 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 300 GATE QUARTER/ LOW POWER 5V - 15NS RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)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
ATF20V8BQL-15SI 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 300 GATE QUARTER/ LOW POWER 5V - 15NS RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)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
ATF20V8BQL-15XC 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 300 GATE QUARTER/ LOW POWER 5V - 15NS RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)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
ATF20V8BQL-15XI 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Electrically-Erasable PLD
ATF20V8BQL-25JC 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:High- Performance EE PLD
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*