CY7C4255V/CY7C4265V
CY7C4275V/CY7C4285V
Maximum Ratings
[1]
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ................................ –65°C to +150°C
Ambient Temperature with
Power Applied............................................ –55°C to +125°C
Supply Voltage to Ground Potential .........–0.5V to V
CC
+0.5V
DC Voltage Applied to Outputs
in High Z State .........................................–0.5V to V
CC
+0.5V
DC Input Voltage
..........................................−0.5V
to V
CC
+0.5V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage............................................ >2001V
(per MIL–STD–883, Method 3015)
Latch-Up Current..................................................... >200 mA
Operating Range
Range
Commercial
Industrial
[2]
Ambient
Temperature
0°C to +70°C
–40°C to +85°C
V
CC
[3]
3.3V ±300 mV
3.3V ±300 mV
Electrical Characteristics
Over the Operating Range
[4]
7C4255/65/75/
85V-10
Parameter
V
OH
Description
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH
Voltage
Input LOW
Voltage
Input Leakage
Current
Output OFF,
High Z Current
Active Power
Supply Current
Average Standby
Current
V
CC
= Max.
OE > V
IH
,
V
SS
< V
O
< V
CC
Com’l
Ind
Com’l
Ind
4
Test Conditions
V
CC
= Min., I
OH
= –1.0 mA
V
CC
= 3.0V. I
OH
= –2.0
mA
V
CC
= Min.,I
OL
= 4.0 mA
V
CC
= 3.0V.,I
OL
= 8.0 mA
2.0
–0.5
–10
–10
Min.
2.4
Max.
7C4255/65/75/
85V-15
Min.
2.4
Max.
7C4255/65/75/
85V-25
Min.
2.4
Max.
Unit
V
V
OL
V
IH[5]
V
IL[5]
I
IX
I
OZL
I
OZH
I
CC1[6]
I
SB[7]
0.4
V
CC
0.8
+10
+10
30
2.0
–0.5
–10
–10
0.4
V
CC
0.8
+10
+10
30
35
4
4
2.0
–0.5
–10
–10
0.4
V
CC
0.8
+10
+10
30
V
V
V
µA
µA
mA
mA
4
mA
mA
Capacitance
[8]
Parameter
C
IN
C
OUT
Description
Input Capacitance
Output Capacitance
Test Conditions
T
A
= 25°C, f = 1 MHz,
V
CC
= 3.3V
Max.
5
7
Unit
pF
pF
Notes:
1. The Voltage on any input or I/O pin cannot exceed the power pin during power-up.
2. T
A
is the “instant on” case temperature.
3. V
CC
range for commercial -10 ns is 3.3V ±150mV.
4. See the last page of this specification for Group A subgroup testing information.
5. The V
IH
and V
IL
specifications apply for all inputs except WXI, RXI. The WXI, RXI pin is not a TTL input. It is connected to either RXO, WXO of the
previous device or V
SS
.
6. Input signals switch from 0V to 3V with a rise/fall time of less than 3 ns, clocks and clock enables switch at 20 MHz, while data inputs switch at 10 MHz. Outputs
are unloaded.
7. All inputs = V
CC
– 0.2V, except RCLK and WCLK (which are at frequency = 0 MHz), and FL/RT which is at V
SS
. All outputs are unloaded.
8. Tested initially and after any design changes that may affect these parameters.
Document #: 38-06012 Rev. *A
Page 4 of 20
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