参数资料
型号: XA2C64A-7VQG100I
厂商: Xilinx Inc
文件页数: 6/16页
文件大小: 0K
描述: IC CPLD 64MCELL 64 I/O 100-VQFP
产品培训模块: CoolRunner-II CPLD Starter Kit
标准包装: 90
系列: CoolRunner II
可编程类型: 系统内可编程
最大延迟时间 tpd(1): 6.7ns
电压电源 - 内部: 1.7 V ~ 1.9 V
逻辑元件/逻辑块数目: 4
宏单元数: 64
门数: 1500
输入/输出数: 64
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-TQFP
供应商设备封装: 100-VQFP(14x14)
包装: 托盘
XA2C64A CoolRunner-II Automotive CPLD
14
DS553 (v1.1) May 5, 2007
Product Specification
R
CoolRunner-II Automotive Requirements and Recommendations
Requirements
The following requirements are for all automotive applica-
tions:
1. Use a monotonic, fast ramp power supply to power up
CoolRunner-II . A VCC ramp time of less than 1 ms is
required.
2. Do not float I/O pins during device operation. Floating
I/O pins can increase ICC as input buffers will draw
1-2 mA per floating input. In addition, when I/O pins are
floated, noise can propagate to the center of the CPLD.
I/O pins should be appropriately terminated with
bus-hold or pull-up. Unused I/Os can also be configured
as CGND (programmable GND).
3. Do not drive I/O pins without VCC/VCCIO powered.
4. Sink current when driving LEDs. Because all Xilinx
CPLDs have N-channel pull-down transistors on
outputs, it is required that an LED anode is sourced
through a resistor externally to VCC. Consequently, this
will give the brightest solution.
5. Avoid pull-down resistors. Always use external pull-up
resistors if external termination is required. This is
because the CoolRunner-II Automotive CPLD, which
includes some I/O driving circuits beyond the input and
output buffers, may have contention with external
pull-down resistors, and, consequently, the I/O will not
switch as expected.
6. Do not drive I/Os pins above the VCCIO assigned to its
I/O bank.
a. The current flow can go into VCCIO and affect a user
voltage regulator.
b. It can also increase undesired leakage current
associated with the device.
Figure 12: VQ100 Package
VQG100
Top View
GND
I/O
(3)
V
CCIO2
I/O
NC
I/O
NC
I/O
V
CCIO2
NC
GND
TDO
NC
I/O
NC
I/O
V
CC
I/O
(2)
I/O
GND
I/O
V
CCIO1
I/O
NC
TDI
NC
TMS
TCK
I/O
NC
I/O
NC
I/O
GND
I/O
NC
I/O
NC
GND
I/O
NC
I/O
Vcc
I/O
NC
I/O
VCCIO1
I/O(1)
VAUX
I/O
NC
GND
I/O(2)
I/O
NC
1
2
3
4
5
6
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9
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14
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25
75
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51
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76
(1) - Global Output Enable
(2) - Global Clock
(3) - Global Set/Reset
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