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CY7C194BN Datasheet, PDF (4/10 Pages) Cypress Semiconductor – 256 Kb (64K x 4) Static RAM
CY7C194BN
Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.)
Parameter
TSTG
TAMB
VCC
VIN, VOUT
IOUT
VESD
ILU
Description
Storage Temperature
Ambient Temperature with Power Applied (i.e. case temperature)
Core Supply Voltage Relative to VSS
DC Voltage Applied to any Pin Relative to VSS
Output Short-Circuit Current
Static Discharge Voltage (per MIL-STD-883, Method 3015)
Latch-up Current
Value
Unit
–65 to +150
°C
–55 to +125
°C
–0.5 to +7.0
V
–0.5 to VCC + 0.5
V
20
mA
> 2001
V
> 200
mA
Operating Range
Range
Commercial
Ambient Temperature (TA)
0°C to 70°C
Voltage Range (VCC)
5.0V ± 10%
DC Electrical Characteristics[3]
Parameter
VIH
VIL
VOH
VOL
ICC
ISB1
ISB2
IOZ
IIX
Description
Condition
Input HIGH Voltage
Input LOW Voltage
Output HIGH Voltage VCC = Min., loh = –4.0 ma
Output LOW Voltage VCC = Min., lol = 8.0 ma
VCC Operating Supply VCC = Max., IOUT = 0 mA,
Current
f = FMAX = 1 / tRC
Automatic CE
VCC = Max., CE ≥ VIH, VIN ≥
Power-down Current VIH or VIN ≤ VIL, f = FMAX
TTL Inputs
Automatic CE
VCC = Max., CE ≥ VCC - 0.3v,
Power-down Current VIN > VCC - 0.3v or VIN ≤ 0.3,
CMOS Inputs
f = 0, Commercial
Output Leakage
Current
GND ≤ Vi ≤ VCC,
Output Disabled
Input Load Current GND ≤ Vi ≤ VCC
15 ns
Min.
Max.
2.2
–0.3
VCC + 0.3
0.8
2.4
–
–
0.4
–
80
–
30
–
10
–5
+5
–5
+5
25 ns
Min.
Max.
Unit
2.2 VCC + 0.3 V
–0.5
0.8
V
2.4
–
V
–
0.4
V
–
80
mA
–
30
mA
–
10
mA
–5
+5
µA
–5
+5
µA
Capacitance[2]
Parameter
Description
Conditions
Max
Unit
CIN
Input Capacitance TA = 25°C, f = 1 MHz, VCC = 5.0V
7
pF
COUT
Output Capacitance
10
Thermal Resistance[4]
CY7C194BN
Parameter
Description
Conditions
24 DIP
24 SOJ
ΘJA
Thermal Resistance
Still Air, soldered on a 3 x 4.5
75.69
84.15
(Junction to Ambient)
square inches, two-layer
ΘJC
Thermal Resistance
printed circuit board
(Junction to Case)
33.80
37.56
Note:
2. Tested initially and after any design or process change that may affect these parameters
3. VIL(min) = –2.0V for pulse durations of less than 20 ns.
4. Test Conditions assume a transition time of 3ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V
Unit
°C/W
Document #: 001-06446 Rev. **
Page 4 of 10
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