CY7C455
CY7C456
CY7C457
Document #: 38-06003 Rev. *A
Page 5 of 23
Electrical Characteristics Over the Operating Range
7C455/6/7–
12
7C455/6/7–
14
7C455/6/7–
20
7C455/6/7–
30
Parameter
Description
Test Conditions
Min.
Max
Min.
Max
Min.
Max
Min.
Max
Unit
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
[3]
Input HIGH Voltage
2.2
VCC
2.2
VCC
2.2
VCC
2.2
VCC
V
VIL
[3]
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
IOS
[4]
Output Short
Circuit Current
VCC = Max., VOUT = GND
–90
–90
–90
–90
mA
IOZL
IOZH
Output OFF, High Z
Current
OE > VIH, VSS < VO < VCC
–10
+10
–10
+10
–10
+10
–10
+10
µA
ICC1
[5]
Operating Current
VCC = Max.,
IOUT = 0 mA
Com’l
160
160
140
120
mA
Ind
180
180
160
140
mA
ICC2
[6]
Operating Current
VCC = Max.,
IOUT = 0 mA
Com’l
90
90
90
90
mA
Ind
100
100
100
100
mA
ISB
[7]
Standby Current
VCC = Max.,
IOUT = 0 mA
Com’l
40
40
40
40
mA
Ind
40
40
40
40
mA
Capacitance[8]
Parameter
Description
Test Conditions
Max.
Unit
CIN
Input Capacitance
TA = 25°C, f = 1 MHz,
VCC = 5.0V
10
pF
COUT
Output Capacitance
12
pF
AC Test Loads and Waveforms[9, 10, 11, 12, 13]
Notes:
3.
The VIH and VIL specifications apply for all inputs except XI. The XI pin is not a TTL input. It is connected to either XO of the previous device or VSS.
4.
Test no more than one output at a time for not more than one second.
5.
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 (fMAX), while data inputs
switch at fMAX/2. Outputs are unloaded.
6.
Input signals switch from 0V to 3V with a rise/fall time less than 3 ns, clocks and clock enables switch at 20 MHz, while the data inputs switch at 10 MHz.
Outputs are unloaded.
7.
All input signals are connected to VCC. All outputs are unloaded. Read and write clocks switch at maximum frequency (fMAX).
8.
Tested initially and after any design or process changes that may affect these parameters.
9.
CL = 30 pF for all AC parameters except for tOHZ.
10. CL = 5 pF for tOHZ.
11. All AC measurements are referenced to 1.5V except tOE, tOLZ, and tOHZ.
12. tOE and tOLZ are measured at ± 100 mV from the steady state.
13. tOHZ is measured at +500 mV from VOL and – 500 mV from VOH.
3.0V
5V
OUTPUT
R1 500
Ω
R2
333
Ω
CL
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
≤ 3ns
≤ 3 ns
OUTPUT
2V
Equivalent to:
THÉVENIN EQUIVALENT
c455-4
200
Ω
ALL INPUT PULSES
c455-5
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