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ACEX1K 数据表(PDF) 36 Page - Altera Corporation

部件名 ACEX1K
功能描述  Programmable Logic Device Family
Download  86 Pages
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制造商  ALTERA [Altera Corporation]
网页  http://www.altera.com
标志 ALTERA - Altera Corporation

ACEX1K 数据表(HTML) 36 Page - Altera Corporation

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Altera Corporation
ACEX 1K Programmable Logic Device Family Data Sheet
f For more information, search for “SameFrame” in MAX+PLUS II Help.
Note:
(1)
This option is supported with a 256-pin FineLine BGA package and SameFrame
migration.
ClockLock &
ClockBoost
Features
To support high-speed designs, -1 and -2 speed grade ACEX 1K devices
offer ClockLock and ClockBoost circuitry containing a phase-locked loop
(PLL) that is used to increase design speed and reduce resource usage. The
ClockLock circuitry uses a synchronizing PLL that reduces the clock delay
and skew within a device. This reduction minimizes clock-to-output and
setup times while maintaining zero hold times. The ClockBoost circuitry,
which provides a clock multiplier, allows the designer to enhance device
area efficiency by sharing resources within the device. The ClockBoost
feature allows the designer to distribute a low-speed clock and multiply
that clock on-device. Combined, the ClockLock and ClockBoost features
provide significant improvements in system performance and
bandwidth.
The ClockLock and ClockBoost features in ACEX 1K devices are enabled
through the Altera software. External devices are not required to use these
features. The output of the ClockLock and ClockBoost circuits is not
available at any of the device pins.
The ClockLock and ClockBoost circuitry lock onto the rising edge of the
incoming clock. The circuit output can drive the clock inputs of registers
only; the generated clock cannot be gated or inverted.
The dedicated clock pin (GCLK1) supplies the clock to the ClockLock and
ClockBoost circuitry. When the dedicated clock pin is driving the
ClockLock or ClockBoost circuitry, it cannot drive elsewhere in the device.
Table 10. ACEX 1K SameFrame Pin-Out Support
Device
256-Pin
FineLine
BGA
484-Pin
FineLine
BGA
EP1K10
v
(1)
EP1K30
v
(1)
EP1K50
vv
EP1K100
vv


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