參數(shù)資料
型號(hào)： MAX7000
廠商： Altera Corporation
英文描述： Programmable Logic Device Family
中文描述： 可編程邏輯器件系列
文件頁(yè)數(shù)： 18/62頁(yè)
文件大小： 1173K
代理商： MAX7000
18
Altera Corporation
MAX 7000 Programmable Logic Device Family Data Sheet
Open-Drain Output Option (MAX 7000S Devices Only)
MAX 7000S devices provide an optional open-drain (functionally
equivalent to open-collector) output for each I/ O pin. This open-drain
output enables the device to provide system-level control signals (e.g.,
interrupt and write enable signals) that can be asserted by any of several
devices. It can also provide an additional wired-
OR
plane.
By using an external 5.0-V pull-up resistor, output pins on MAX 7000S
devices can be set to meet 5.0-V CMOS input voltages. When V
CCIO
is
3.3V, setting the open drain option will turn off the output pull-up
transistor, allowing the external pull-up resistor to pull the output high
enough to meet 5.0-V CMOS input voltages. When V
CCIO
is 5.0V, setting
the output drain option is not necessary because the pull-up transistor will
already turn off when the pin exceeds approximately 3.8 V, allowing the
external pull-up resistor to pull the output high enough to meet 5.0-V
CMOS input voltages.
Slew-Rate Control
The output buffer for each MAX 7000E and MAX 7000S I/ O pin has an
adjustable output slew rate that can be configured for low-noise or high-
speed performance. A faster slew rate provides high-speed transitions for
high-performance systems. However, these fast transitions may introduce
noise transients into the system. A slow slew rate reduces system noise,
but adds a nominal delay of 4 to 5 ns. In MAX 7000E devices, when the
Turbo Bit is turned off, the slew rate is set for low noise performance. For
MAX 7000S devices, each I/ O pin has an individual EEPROM bit that
controls the slew rate, allowing designers to specify the slew rate on a
pin-by-pin basis.
Programming
with External
Hardware
MAX 7000 devices can be programmed on Windows-based PCs with the
Altera Logic Programmer card, the Master Programming Unit (MPU),
and the appropriate device adapter. The MPU performs a continuity
check to ensure adequate electrical contact between the adapter and the
device.
f
Altera Programming Hardware Data Sheet
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX7000A 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Programmable Logic Device
MAX-7000A 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Programmable Logic Device
MAX7000AE 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Programmable Logic Device
MAX7000B 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Programmable Logic Device
MAX7000S 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Programmable Logic Device Family
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