16
ICSSSTUB32S868D
Advance Information
08/14/06
Switching Characteristics
(over recommended operating free-air temperature range, unless otherwise noted)
Symbol Parameter
Measurement
Conditions
MIN MAX Units
fmax Max input clock frequency 410 MHz
t
PDM
Propagation delay, single
bit switching
CK↑ to CK#↓ Qn 1.2 1.9 ns
t
LH
Low to High propagation
delay
CK↑ to CK#↓ to QERR# 1.2 3 ns
t
HL
High to low propagation
delay
CK↑ to CK#↓ to QERR# 1 2.4 ns
t
PDMSS
Propagation delay
simultaneous switching
CK↑ to CK#↓ Qn 2 ns
t
PHL
High to low propagation
delay
Reset# ↓ to Qn↓ 3ns
t
PLH
Low to High propagation
delay
Reset# ↓ to QERR#↑ 3ns
1. Guaranteed by design, not 100% tested in production.
(over recommended operating free-air temperature range, unless otherwise noted)
Timing Requirements
NOTE 1 This parameter is not necessarily production tested.
NOTE 2
V
REF
must be held at a valid input voltage level and data inputs must be held low for a minimum time of
t
ACT
(max) after RESET# is taken high.
NOTE 3
V
REF
, Data and clock inputs must be held at valid voltage levels (not floating) a minimum time of t
INACT
(max) after RESET# is taken low.
Symbol Parameter Min Max Unit
f
clock
Clock frequency
- 410 MHz
t
W
Pulse duration, CK, CK# HIGH or LOW
1-ns
t
ACT
Differential inputs active time (See Notes 1 and 2)
-10ns
t
INACT
Differential inputs inactive time (See Notes 1 and 3)
-15ns
t
SU
Setup time
DCS before CK , CK# , CSR# high;
CSR# before CK , CK# , DCS# high
0.7 - ns
Setup time
DCS# before CK , CK# , CSR# low
0.5 - ns
Setup time
DODT, DCKE and data before CK , CK
# 0.5 - ns
Setup time
PAR_IN before CK , CK#
0.5 - ns
t
H
Hold time
DCS#, DODT, DCKE and data after CK , CK
# 0.6 - ns
Hold time
PAR_IN after CK , CK#
0.5 - ns
