XA2C64A-8VQG100Q Xilinx Inc, XA2C64A-8VQG100Q Datasheet - Page 14

• Manufacturer Part Number: XA2C64A-8VQG100Q
• Description: IC CPLD 64MCELL 64 I/O 100-VQFP
• Manufacturer: Xilinx Inc
• Series: CoolRunner IIr

Specifications of XA2C64A-8VQG100Q

• Programmable Type: In System Programmable
• Delay Time Tpd(1) Max: 6.7ns
• Voltage Supply - Internal: 1.7 V ~ 1.9 V
• Number Of Logic Elements/blocks: 4
• Number Of Macrocells: 64
• Number Of Gates: 1500
• Number Of I /o: 64
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Features: JTAG
• Voltage: 1.8V
• Memory Type: CMOS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Logic Elements/cells: -

XA2C64A CoolRunner-II Automotive CPLD
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
2. Do not float I/O pins during device operation. Floating
3. Do not drive I/O pins without V
4. Sink current when driving LEDs. Because all Xilinx
14
CoolRunner-II . A V
required.
I/O pins can increase I
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 C
CPLDs have N-channel pull-down transistors on
GND
(programmable GND).
CC
I/O
I/O
I/O
I/O
V
I/O
I/O
GND
AUX
CC
NC
NC
ramp time of less than 1 ms is
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
(1)
(1)
(1)
(1)
(2)
(2)
as input buffers will draw
(1) - Global Output Enable
(2) - Global Clock
(3) - Global Set/Reset
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
CC
/V
CCIO
powered.
Figure 12: VQ100 Package
www.xilinx.com
Top View
VQG100
5. Avoid pull-down resistors. Always use external pull-up
6. Do not drive I/Os pins above the V
outputs, it is required that an LED anode is sourced
through a resistor externally to V
will give the brightest solution.
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.
I/O bank.
a. The current flow can go into V
b. It can also increase undesired leakage current
voltage regulator.
associated with the device.
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
NC
I/O
NC
I/O
I/O
I/O
GND
I/O
I/O
NC
NC
I/O
NC
GND
I/O
I/O
NC
I/O
Vcc
I/O
I/O
NC
I/O
I/O
V
CCIO1
DS553 (v1.1) May 5, 2007
CC
CCIO
Product Specification
CCIO
. Consequently, this
and affect a user
assigned to its
R