Datasheet

SN74SSTL16857
14-BIT SSTL_2 REGISTERED BUFFER
SCAS625 – FEBRUARY 1999
6–19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 1)
V
CC
= 2.5 V
± 0.2 V
V
CC
= 3.3 V
± 0.3 V
UNIT
MIN MAX MIN MAX
f
clock
Clock frequency MHz
t
w
Pulse duration, CLK, CLK high or low ns
Data before CLK↑, CLK↓
t
su
Setup time
RESET
high before CLK↑, CLK↓
ns
t
h
Hold time, data after CLK↑, CLK↓ ns
switching characteristics over recommended operating free-air temperature range,
Class I, V
TT
= V
REF
= V
DDQ
/2, and C
L
= 10 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
V
CC
= 2.5 V
± 0.2 V
V
CC
= 3.3 V
± 0.3 V
UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX
f
max
MHz
t
pd
CLK and CLK Q ns
t
PHL
RESET
Q ns
switching characteristics over recommended operating free-air temperature range,
Class II, V
TT
= V
REF
= V
DDQ
/2, and C
L
= 30 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
V
CC
= 2.5 V
± 0.2 V
V
CC
= 3.3 V
± 0.3 V
UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX
f
max
MHz
t
pd
CLK and CLK Q ns
t
PHL
RESET
Q ns
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