CY7C4421/4201/4211/4221
CY7C4231/4241/4251
Electrical Characteristics Over the Operating Range[5]
-10
-15
-25
Parameter
Description
Test Conditions
Min.
Max.
Min.
Max.
Min.
Max.
Unit
VOH
Output HIGH Voltage VCC = Min.,
2.4
2.4
2.4
V
IOH = –2.0 mA
VOL
Output LOW Voltage
VCC = Min.,
OL = 8.0 mA
0.4
0.4
0.4
V
I
VIH
VIL
IIX
Input HIGH Voltage
Input LOW Voltage
2.2
–3.0
–10
VCC
0.8
2.2
–3.0
–10
VCC
0.8
2.2
–3.0
–10
VCC
0.8
V
V
Input Leakage
Current
VCC = Max.
+10
+10
+10
µA
[6]
IOS
Output Short
Circuit Current
VCC = Max.,
VOUT = GND
–90
–10
–90
–10
–90
–10
mA
mA
IOZL
IOZH
Output OFF,
High-Z Current
OE > VIH,
VSS < VO < VCC
+10
+10
+10
[7]
ICC1
Active Power Supply
Current
Commercial
35
40
10
15
35
40
10
15
35
40
10
15
mA
mA
mA
mA
Industrial
[8]
ICC2
Average Standby
Current
Commercial
Industrial
Capacitance[9]
Parameter
Description
Input Capacitance
Output Capacitance
Test Conditions
TA = 25°C, f = 1 MHz,
VCC = 5.0V
Max.
5
7
Unit
pF
pF
CIN
COUT
AC Test Loads and Waveforms[10, 11]
R1 1.1 KΩ
5V
ALL INPUT PULSES
OUTPUT
3.0V
GND
90%
10%
90%
10%
R2
680Ω
C
L
≤ 3 ns
≤ 3 ns
INCLUDING
JIG AND
Equivalentto:
THÉVENIN EQUIVALENT
SCOPE
420Ω
OUTPUT
1.91V
Switching Characteristics Over the Operating Range
-10
-15
-25
Parameter
tS
Description
Clock Cycle Frequency
Min.
Max.
100
8
Min.
Max.
66.7
10
Min.
Max.
40
Unit
MHz
ns
tA
Data Access Time
Clock Cycle Time
Clock HIGH Time
Clock LOW Time
Data Set-up Time
2
2
15
6
2
15
tCLK
tCLKH
tCLKL
10
4.5
4.5
3
25
10
10
6
ns
ns
6
ns
tDS
4
ns
Notes:
5. See the last page of this specification for Group A subgroup testing information.
6. Test no more than one output at a time for not more than one second.
7. Outputs open. Tested at Frequency = 20 MHz.
8. All inputs = VCC – 0.2V, except WCLK and RCLK, which are switching at 20 MHz.
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
.
Document #: 38-06016 Rev. *A
Page 7 of 18
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