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XQR1701LCC44M Datasheet, PDF (6/11 Pages) Xilinx, Inc – Cascadable for storing longer or multiple bitstreams
QPro Series Configuration PROMs (XQ) including Radiation-Hardened Series (XQR)
R
Standby Mode
The PROM enters a low-power standby mode whenever CE
is asserted High. The output remains in a high-impedance
state regardless of the state of the OE input.
Programming
The devices can be programmed on programmers supplied
by Xilinx or qualified third-party vendors. The user must
ensure that the appropriate programming algorithm and the
latest version of the programmer software are used. The
wrong choice can permanently damage the device.
Table 1: Truth Table for Control Inputs
Control Inputs
Outputs
RESET
CE
Inactive
Low
Internal Address
If address < TC(1): increment
If address > TC(1): don’t change
DATA
Active
High-Z
CEO
High
Low
ICC
Active
Reduced
Active
Low
Held reset
High-Z
High
Active
Inactive
High
Not changing
High-Z
High
Standby
Active
High
Held reset
High-Z
High
Standby
Notes:
1. The XC1700 RESET input has programmable polarity
2. TC = Terminal Count = highest address value. TC + 1 = address 0.
Radiation Characteristics (XQR1701L only)
Symbol
Description
Min
TID
Total ionizing dose, Method 1019
50
SEL
SEU
Single event latch-up.
-
Heavy ion saturation cross section, LET1 > 120 MeV cm2/mg
Single event bit upset.
-
Heavy ion saturation cross section
LET > 120 MeV cm2/mg
SEFI2
Single event functional interupt,
-
Heavy ion saturation cross section,
10% saturated intercept at LET = 6.0 MeV cm2/mg
Notes:
1. Single Event Effects testing was performed with heavy ion to a maximum LET of 120 MeV cm2/mg.
Max
-
0
0
1.2e–5
Units
krad(Si)
(cm2/Device)
(cm2/Bit)
(cm2/Device)
6
www.xilinx.com
DS062 (v3.1) November 5, 2001
1-800-255-7778
Preliminary Product Specification