CY7C4255, CY7C4265, CY7C4265A
Document #: 38-06004 Rev. *E
Page 4 of 23
Maximum Ratings
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.[2]
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 +7.0V
DC Voltage Applied to Outputs
in High Z State ................................................–0.5V to +7.0V
DC Input Voltage
......................................... −0.5V to VCC+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
Ambient
Temperature[3]
VCC
Commercial
0°C to +70°C
5V
± 10%
Industrial[4]
–40°C to +85°C
5V
± 10%
Electrical Characteristics Over the Operating Range[4]
Parameter
Description
Test Conditions
7C42X5-10
7C42X5,
7C4265A-15
7C42X5-25
7C42X5-35
Unit
Min
Max
Min
Max
Min
Max
Min
Max
VOH
Output HIGH Voltage
VCC = Min.,
IOH = –2.0 mA
2.4
2.4
2.4
2.4
V
VOL
Output LOW Voltage
VCC = Min.,
IOL = 8.0 mA
0.4
0.4
0.4
0.4
V
VIH[5]
Input HIGH Voltage
2.0
VCC
2.0
VCC
2.0
VCC
2.0
VCC
V
VIL[5]
Input LOW Voltage
–0.5
0.8
–0.5
0.8
–0.5
0.8
–0.5
0.8
V
IIX
Input Leakage
Current
VCC = Max.
–10
+10
–10
+10
–10
+10
–10
+10
μA
IOZL
IOZH
Output OFF,
High Z Current
OE > VIH,
VSS < VO < VCC
–10
+10
–10
+10
–10
+10
–10
+10
μA
ICC1[6]
Active Power Supply
Current
Commercial
45
45
45
45
mA
Industrial
50
50
50
50
mA
ICC2[7]
Average Standby
Current
Commercial
10
10
10
10
mA
Industrial
15
15
15
15
mA
Notes
2. The Voltage on any input or I/O pin cannot exceed the power pin during power up.
3. TA is the “Instant On” case temperature.
4. See the last page of this specification for Group A subgroup testing information.
5. The VIH and VIL 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 VSS.
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. ICC1(typical) = (25 mA + (freq – 20 MHz) * (1.0 mA/MHz)).
7. All inputs = VCC – 0.2V, except RCLK and WCLK (which are switching at frequency = 20 MHz), and FL/RT which is at VSS. All outputs are unloaded.
8. Tested initially and after any design changes that may affect these parameters.
9. Tested initially and after any process changes that may affect these parameters.
Capacitance[8, 9]
Parameter
Description
Test Conditions
Max
Unit
CIN
Input Capacitance
TA = 25°C, f = 1 MHz,
VCC = 5.0V
5pF
COUT
Output Capacitance
7
pF
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