CY7C4261
CY7C4271
Maximum Ratings[4]
DC Input Voltage....................................... −0.5V to VCC + 0.5V
Output Current into Outputs (LOW)............................. 20 mA
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Static Discharge Voltage............................................>2001V
(per MIL-STD-883, Method 3015)
Storage Temperature .......................................−65°C to +150°C
Latch-up Current......................................................>200 mA
Operating Range
Ambient Temperature with
Power Applied....................................................−55°C to +125°C
Range
Commercial
Industrial[5]
Military
Ambient Temperature
0°C to +70°C
VCC
Supply Voltage to Ground Potential .................−0.5V to +7.0V
5V ± 10%
5V ± 10%
5V ± 10%
DC Voltage Applied to Outputs
in High-Z State............................................−0.5V to VCC + 0.5V
−40°C to +85°C
−55°C to +125°C
Electrical Characteristics Over the Operating Range[6]
7C4261/71-10 7C4261/71-15 7C4261/71-25 7C4261/71-35
Parameter
Description
Test Conditions Min. Max. Min. Max. Min. Max. Min. Max. Unit
VOH
Output HIGH Voltage VCC = Min.,
OH = −2.0 mA
2.4
2.4
2.4
2.4
V
V
V
V
I
VOL
VIH
VIH
Output LOW Voltage VCC = Min.,
IOL = 8.0 mA
0.4
VCC
VCC
0.4
VCC
VCC
0.4
VCC
VCC
0.4
VCC
VCC
Input HIGH Voltage
(comm./ind.)
2.0
2.2
2.0
2.2
2.0
2.2
2.0
2.2
Input HIGH Voltage
(military)
VIL
IIX
Input LOW Voltage
−0.5
−10
−10
0.8
+10
+10
−0.5
−10
−10
0.8
+10
+10
−0.5
−10
−10
0.8
+10
+10
−0.5
−10
−10
0.8
+10
+10
V
Input Leakage Current VCC = Max.
µA
µA
IOZL
IOZH
Output OFF,
High Z Current
OE > VIH,
VSS < VO< VCC
[7]
ICC1
Active Power Supply
Current
Com’l
35
40
10
15
35
40
10
15
35
40
10
15
35
40
10
15
mA
mA
mA
mA
Ind/Mil
[8]
ISB
Average Standby
Current
Com’l
Ind/Mil
Capacitance[9]
Parameter
Description
Input Capacitance
Output Capacitance
Test Conditions
TA = 25°C, f = 1 MHz,
CC = 5.0V
Max.
Unit
CIN
5
7
pF
pF
V
COUT
AC Test Loads and Waveforms[10, 11]
R1 1.1KΩ
ALL INPUT PULSES
90%
5V
OUTPUT
3.0V
GND
90%
10%
10%
R2
680Ω
C
INCLUDING
JIG AND
SCOPE
L
≤3ns
≤ 3ns
Equivalent to:
THÉVENIN EQUIVALENT
420Ω
OUTPUT
1.91V
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. I (typical) = (20 mA + (freq – 20 MHz) * (0.7 mA/MHz)).
CC1
8. All inputs = V – 0.2V, except WCLK and RCLK (which are switching at frequency = 20 MHz). All outputs are unloaded.
CC
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 t
.
OHZ
11. CL = 5 pF for t
.
OHZ
Document #: 38-06015 Rev. *C
Page 6 of 18
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