W134M/W134S
Document #: 38-07426 Rev. *A
Page 7 of 13
Figure 5
shows that the Clk Stop to Normal transition goes
through three phases. During t
CLKON
, the clock output is not
specified and can have glitches. For t
CLKON
< t < t
CLKSETL
, the
clock output is enabled and must be glitch-free. For
t > t
CLKSETL
, the clock output phase must be settled to within
50 ps of the phase before the clock output was disabled. At
this time, the clock output must also meet the voltage and tim-
ing specifications of
Table 14
. The outputs are in a high-imped-
ance state during the Clk Stop mode.
Table 8. State Transition Latency Specifications
Transition
A
From
To
Transition Latency
Symbol
t
POWERUP
Description
Max.
3 ms
Power-down
Normal
Time from PwrDnB to Clk/ClkB output settled
(excluding t
DISTLOCK
).
Time from PwrDnB until the internal PLL and
clock has turned ON and settled.
Time from PwrDnB to Clk/ClkB output settled
(excluding t
DISTLOCK
).
Time from V
DD
is applied and settled until
Clk/ClkB output settled (excluding t
DISTLOCK
).
Time from V
DD
is applied and settled until
internal PLL and clock has turned ON and
settled.
Time from V
DD
is applied and settled until
internal PLL and clock has turned ON and
settled.
Time from when Mult0 or Mult1 changed until
Clk/ClkB output resettled (excluding
t
DISTLOCK
).
Time from StopB until Clk/ClkB provides
glitch-free clock edges.
Time from StopB to Clk/ClkB output settled to
within 50 ps of the phase before CLK/CLKB
was disabled.
Time from StopB
Φ
to Clk/ClkB output
disabled.
Time from when S0 or S1 is changed until
CLK/CLKB output has resettled (excluding
t
DISTLOCK
).
Time from when S0 or S1 is changed until
CLK/CLKB output has resettled (excluding
t
DISTLOCK
).
Time from PwrDnB
Φ
to the device in Power-
down.
C
Power-down
Clk Stop
t
POWERUP
3 ms
K
Power-down
Test
t
POWERUP
3 ms
G
V
DD
ON
Normal
t
POWERUP
3 ms
H
V
DD
ON
Clk Stop
t
POWERUP
3 ms
M
V
DD
ON
Test
t
POWERUP
3 ms
J
Normal
Normal
t
MULT
1 ms
E
Clk Stop
Normal
t
CLKON
10 ns
E
Clk Stop
Normal
t
CLKSETL
20 cycles
F
Normal
Clk Stop
t
CLKOFF
5 ns
L
Test
Normal
t
CTL
3 ms
N
Normal
Test
t
CTL
3 ms
B,D
Normal or Clk Stop
Power-down
t
POWERDN
1 ms