CY7C455 Просмотр технического описания (PDF) - Cypress Semiconductor
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производитель
CY7C455
Cypress Semiconductor
CY7C455 Datasheet PDF : 23 Pages
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CY7C455
CY7C456
CY7C457
Electrical Characteristics Over the Operating Range
Parameter
VOH
VOL
VIH[3]
VIL[3]
IIX
IOS[4]
IOZL
IOZH
ICC1[5]
ICC2[6]
ISB[7]
Description
Test Conditions
Output HIGH
Voltage
VCC = Min., IOH = –2.0 mA
Output LOW
Voltage
VCC = Min., IOL = 8.0 mA
Input HIGH Voltage
Input LOW Voltage
Input Leakage
Current
VCC = Max.
Output Short
Circuit Current
VCC = Max., VOUT = GND
Output OFF, High Z OE > VIH, VSS < VO < VCC
Current
Operating Current VCC = Max.,
IOUT = 0 mA
Com’l
Ind
Operating Current VCC = Max.,
IOUT = 0 mA
Com’l
Ind
Standby Current
VCC = Max.,
IOUT = 0 mA
Com’l
Ind
7C455/6/7–
12
Min. Max
2.4
0.4
2.2 VCC
–0.5 0.8
–10 +10
–90
–10 +10
160
180
90
100
40
40
7C455/6/7– 7C455/6/7– 7C455/6/7–
14
20
30
Min. Max Min. Max Min. Max
2.4
2.4
2.4
0.4
0.4
0.4
2.2 VCC 2.2 VCC 2.2 VCC
–0.5 0.8 –0.5 0.8 –0.5 0.8
–10 +10 –10 +10 –10 +10
–90
–90
–90
–10 +10 –10 +10 –10 +10
160
140
120
180
160
140
90
90
90
100
100
100
40
40
40
40
40
40
Unit
V
V
V
V
µA
mA
µA
mA
mA
mA
mA
mA
mA
Capacitance[8]
Parameter
CIN
COUT
Description
Input Capacitance
Output Capacitance
Test Conditions
TA = 25°C, f = 1 MHz,
VCC = 5.0V
Max.
Unit
10
pF
12
pF
AC Test Loads and Waveforms[9, 10, 11, 12, 13]
5V
OUTPUT
R1 500Ω
CL
INCLUDING
JIG AND
SCOPE
R2
333Ω
c455-4
3.0V
GND
≤ 3 ns
ALL INPUT PULSES
90%
10%
90%
10%
≤ 3 ns
c455-5
Equivalent to:
THÉVENIN EQUIVALENT
200Ω
OUTPUT
2V
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.
Document #: 38-06003 Rev. *A
Page 5 of 23
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