
XC2C256 CoolRunner-II CPLD
6 www.xilinx.com DS094 (v3.2) March 8, 2007
Product Specification
R
SSTL3-1 DC Voltage Specifications
HSTL1 DC Voltage Specifications
AC Electrical Characteristics Over Recommended Operating Conditions
Symbol Parameter Test Conditions Min. Typ Max. Units
V
CCIO
Input source voltage - 3.0 3.3 3.6 V
V
REF
(1)
Input reference voltage - 1.3 1.5 1.7 V
V
TT
(2)
Termination voltage - V
REF
– 0.05 1.5 V
REF
+ 0.05 V
V
IH
High level input voltage - V
REF
+ 0.2 - V
CCIO
+ 0.3 V
V
IL
Low level input voltage - –0.3 - V
REF
– 0.2 V
V
OH
High level output voltage I
OH
= –8 mA, V
CCIO
= 3V V
CCIO
– 1.1 - - V
V
OL
Low level output voltage I
OL
= 8 mA, V
CCIO
= 3V - - 0.7 V
Notes:
1. V
REF
should track the variations in V
CCIO
, also peak to peak AC noise on V
REF
may not exceed ± 2% V
REF
2. V
TT
of transmitting device must track V
REF
of receiving devices
Symbol Parameter Test Conditions Min. Typ Max. Units
V
CCIO
Input source voltage - 1.4 1.5 1.6 V
V
REF
(1)
Input reference voltage - 0.68 0.75 0.90 V
V
TT
(2)
Termination voltage - - V
CCIO
x
0.5 - V
V
IH
High level input voltage - V
REF
+ 0.1 - 1.9 V
V
IL
Low level input voltage - –0.3 - V
REF
– 0.1 V
V
OH
High level output voltage I
OH
= –8 mA, V
CCIO
= 1.7V V
CCIO
– 0.4 - - V
V
OL
Low level output voltage I
OL
= 8 mA, V
CCIO
= 1.7V - - 0.4 V
Notes:
1. V
REF
should track the variations in V
CCIO
, also peak-to-peak AC noise on V
REF
may not exceed ± 2% V
REF
2. V
TT
of transmitting device must track V
REF
of receiving devices
Symbol Parameter
-6 -7
UnitsMin. Max. Min. Max.
T
PD1
Propagation delay single p-term - 5.7 - 6.7 ns
T
PD2
Propagation delay OR array - 6.0 - 7.5 ns
T
SUD
Direct input register clock setup time 2.6 - 3.0 - ns
T
SU1
Setup time (single p-term) 2.4 - 2.8 - ns
T
SU2
Setup time (OR array) 2.7 - 3.3 - ns
T
HD
Direct input register hold time 0 - 0 - ns
T
H
P-term hold time 0 - 0 - ns
T
CO
Clock to output - 4.5 - 6.0 ns
F
TOGGLE
(1)
Internal toggle rate - 450 - 300 MHz
F
SYSTEM1
(2)
Maximum system frequency - 256 - 152 MHz
F
SYSTEM2
(2)
Maximum system frequency - 238 - 141 MHz
F
EXT1
(3)
Maximum external frequency - 145 - 114 MHz
F
EXT2
(3)
Maximum external frequency - 139 - 108 MHz
T
PSUD
Direct input register p-term clock setup time 1.3 - 1.7 - ns