4. The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
5. Stresses greater than those listed under Absolute Maximum Conditions may cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended period may affect reliability.
6. V
DD
/V
DDQ
terminals.
7. All terminals except V
DD
.
8. The RESET# input of the device must be held at V
DD
or V
SS
to ensure proper device operation.
9. All typical values are measured at T
AMB
= 25°C
Rev 1.0, November 21, 2006
Page 3 of 7
CY2SSTV16859
DC Electrical Specifications
(continued)
Parameter
I
DDD
Description
Condition
VDD
2.7V
Min.
–
Typ.
[9]
30.0
Max.
–
Unit
µA/
clock
MHz
µA/
clock
MHz
/data
input
RESET# = V
DD
, V
I
= V
IH(AC)
or V
IL(AC),
I
O
= 0
Dynamic
operating – clock CLK and CLK# switching 50% duty
only
cycle
Dynamic
operating – per
each data input
RESET# = V
DD
, V
I
= V
IH(AC)
or V
IL(AC),
CLK and CLK# switching 50% duty
cycle. One data input switching at half
clock frequency, 50% duty cycles.
I
OH
= –20 mA
I
OL
= 20 mA
2.7
–
15.0
–
r
OH
r
OL
r
O( )
C
i
Output high
Output low
2.3 to 2.7V
2.3 to 2.7V
2.5V
2.5
2.5
2.5
7
7
–
2.5
2.5
2.5
–
–
–
–
–
–
20
20
4
3.5
3.5
3.5
pF
pF
pF
|r
OH
– r
OL
| each I
O
= 20 mA, T
A
= 25°C
separate bit
Data Inputs
CLK and CLK#
RESET#
V
I
= V
REF
+ 310 mV
V
ICR
= 1.25V, V
I(PP)
= 360 mV
V
I
= V
DD
or V
SS
AC Electrical Specifications
V
DD
= 2.5V± 0.2V
Parameter
f
clock
t
w
t
act
t
inact
t
su
t
h
Clock Frequency
Pulse duration, CLK, CLK# high or low
Differential inputs active time (data inputs must be held low after RESET# is taken high).
Differential inputs inactive time (data and clock inputs must be held at valid levels
(not floating) after RESET# is taken low).
Set-up time, fast slew rate
[10, 12]
Set-up time, slow slew
Hold time, fast slew
Hold time, slow slew
rate
[11, 12]
Data after CLK , CLK#
rate
[10, 12]
rate
[11, 12]
Data before CLK , CLK#
Description
Min.
–
2.0
–
–
0.75
0.9
0.75
0.9
Max.
280
–
22
22
–
–
–
–
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
Table 2. Switching Characteristics Over Recommended Operating Conditions
[13]
Parameter
f
max
t
PHL
t
PD
RESET#
CLK and CLK#
Q
Q
1.1
From (Input)
To (Output)
V
DD
= 2.5V ± 0.2V
Min.
280
Max.
–
5
2.8
MHz
ns
ns
Unit
Notes:
10. For data signal input slew rate
V/ns.
11. For data signal input slew rate V/ns and
V/ns.
12. CLK and CLK# signals input slew rates are 1 V/ns.
13. See test circuits and waveforms. TA = 0°C to +85°C.
Rev 1.0, November 21, 2006
Page 4 of 7
CY2SSTV16859
Output Buffer Characteristics
Table 3. Output Buffer Voltage vs. Current (V/I) Characteristics
For healthcare professionals, accurate diagnosis and treatment are crucial for a clear picture of a person's health. However, healthcare professionals often rely on tests at medical facilities, cli...[详细]
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