CY7C4261
CY7C4271
Document #: 38-06015 Rev. *C
Page 6 of 18
Maximum Ratings[4]
(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 +7.0V
DC Voltage Applied to Outputs
in High-Z State
............................................−0.5V to VCC + 0.5V
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
VCC
Commercial
0
°C to +70°C
5V
± 10%
Industrial[5]
−40
°C to +85°C
5V
± 10%
Military
−55
°C to +125°C
5V
± 10%
Electrical Characteristics Over the Operating Range[6]
Parameter
Description
Test Conditions
7C4261/71-10 7C4261/71-15 7C4261/71-25 7C4261/71-35
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
Input HIGH Voltage
(comm./ind.)
2.0
VCC
2.0
VCC
2.0
VCC
2.0
VCC
V
VIH
Input HIGH Voltage
(military)
2.2
VCC
2.2
VCC
2.2
VCC
2.2
VCC
V
VIL
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[7]
Active Power Supply
Current
Com’l
353535
35
mA
Ind/Mil
404040
40
mA
ISB[8]
Average Standby
Current
Com’l
101010
10
mA
Ind/Mil
151515
15
mA
Capacitance[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
AC Test Loads and Waveforms[10, 11]
Notes:
4. The voltage on any input or I/O pin cannot exceed the power pin during power-up.
5. TA is the “instant on” case temperature.
6. See the last page of this specification for Group A subgroup testing information.
7. Input signals switch from 0V to 3V with a rise/fall time of less than 3 ns, clocks and clock enables switch at maximum frequency 20 MHz, while data inputs switch
at 10 MHz. Outputs are unloaded. ICC1(typical) = (20 mA + (freq – 20 MHz) * (0.7 mA/MHz)).
8. All inputs = VCC – 0.2V, except WCLK and RCLK (which are switching at frequency = 20 MHz). All outputs are unloaded.
9. Tested initially and after any design or process changes that may affect these parameters.
10. CL = 30 pF for all AC parameters except for tOHZ.
11. CL = 5 pF for tOHZ.
3.0V
5V
OUTPUT
R1 1.1K
Ω
R2
680
Ω
CL
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
≤3ns
≤ 3 ns
ALL INPUT PULSES
OUTPUT
1.91V
Equivalent to:
THÉVENIN EQUIVALENT
420
Ω
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