W255H Cypress Semiconductor Corp, W255H Datasheet - Page 4

• Manufacturer Part Number: W255H
• Manufacturer: Cypress Semiconductor Corp

Specifications of W255H

• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-07255 Rev. *C
Maximum Ratings
Supply Voltage to Ground Potential ..................–0.5 to +7.0V
DC Input Voltage (except BUF_IN) ............ –0.5V to V
Operating Conditions
Electrical Characteristics
Switching Characteristics
V
V
I
I
I
I
V
V
I
I
I
V
V
IN
–
–
t
t
t
Notes:
VDD3.3
VDD2.5
T
C
C
Parameter
IL
IH
OH
OL
DD
DD
DDS
3
4
3d
2.
3.
4.
5.
A
IL
IH
OL
OH
OUT
OC
OUT
IN
Parameter
DC
Parameter
Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power-up. Power supply sequencing is NOT required.
Parameter is guaranteed by design and characterization. Not 100% tested in production.
All parameters specified with loaded outputs.
Duty cycle of input clock is 50%. Rising and falling edge rate is greater than 1 V/ns.
Operating Frequency
Duty Cycle
SDRAM Rising Edge Rate
SDRAM Falling Edge Rate
DDR Rising Edge Rate
Input LOW Voltage
Input HIGH Voltage
Input LOW Current
Input HIGH Current
Output HIGH Current
Output LOW Current
Output LOW Voltage
Output HIGH Voltage
Supply Current
(DDR-only mode)
Supply Current
(DDR-only mode)
Supply Current
Output Voltage Swing
Output Crossing Voltage
Input Clock Duty Cycle
Supply Voltage
Supply Voltage
Operating Temperature (Ambient Temperature)
Output Capacitance
Input Capacitance
[3, 5]
Description
Name
[2]
= t
2
[3]
Over the Operating Range
[4]
t
1
[3]
[3]
[3]
Description
[3]
[3]
For all pins except SMBus
V
V
V
V
V
I
I
Unloaded outputs, 133 MHz
Loaded outputs, 133 MHz
PWR_DWN# = 0
See test circuity (refer to
Figure 1)
V
OL
OH
Measured at 1.4V for 3.3V outputs
Measured at V
Measured between 0.4V and 2.4V
Measured between 2.4V and 0.4V
Measured between 20% to 80% of
output (refer to Figure 1)
IN
IN
DD
OUT
OUT
DD
= 12 mA, V
= 0V
= –12 mA, V
= V
= 2.375V
= 2.375V
Test Conditions
DD
= 1V
= 1.2V
DD
+0.5
Test Conditions
DD
DD
DD
Storage Temperature.................................. –65°C to +150°C
Static Discharge Voltage .......................................... > 2000V
(per MIL-STD-883, Method 3015)
= 2.375V
/2 for 2.5V outputs
= 2.375V
3.135
2.375
Min.
(V
0
Min.
–0.1
–18
2.0
1.7
0.7
DD
26
48
/2)
IN
Min.
–5%
1.0
1.0
0.5
66
Typ.
DC
V
6
5
Typ.
–32
DD
35
/2
Typ.
V
3.465
2.625
Max.
(V
DD
70
Max.
+0.1
400
500
100
0.8
0.6
DD
50
50
52
+0.6
/2)
Max.
IN
+5%
2.75
2.75
1.50
200
DC
Page 4 of 10
W255
Unit
Unit
°C
pF
pF
mA
mA
mA
mA
V
V
%
V
V
V
V
V
V
MHz
V/ns
V/ns
V/ns
Unit
A
A
A
%