CY7C344
CY7C344B
2
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ................................. –65
°C to +150°C
Ambient Temperature with
Power Applied................................................... 0
°C to +70°C
Maximum Junction Temperature (Under Bias)............. 150
°C
Supply Voltage to Ground Potential ............... –2.0V to +7.0V
Maximum Power Dissipation................................... 1500 mW
DC VCC or GND Current ............................................500 mA
Static Discharge Voltage
(per MIL-STD-883, Method 3015)..............................>2001V
DC Output Current, per Pin ......................–25 mA to +25 mA
DC Input Voltage[2] .........................................–3.0V to +7.0V
DC Program Voltage .................................................. +13.0V
Operating Range
Range
Ambient
Temperature
VCC
Commercial
0
°C to +70°C
5V
±5%
Industrial
–40
°C to +85°C
5V
±10%
Military
–55
°C to +125°C (Case)
5V
±10%
Electrical Characteristics Over the Operating Range[3]
Parameter
Description
Test Conditions
Min.
Max.
Unit
VOH
Output HIGH Voltage
VCC = Min., IOH = –4.0 mA
2.4
V
VOL
Output LOW Voltage
VCC = Min., IOL = 8 mA
0.45
V
VIH
Input HIGH Level
2.2
VCC+0.3
V
VIL
Input LOW Level
–0.3
0.8
V
IIX
Input Current
GND
≤ V
IN ≤ VCC
–10
+10
µA
IOZ
Output Leakage Current
VO = VCC or GND
–40
+40
µA
IOS
Output Short Circuit Current
VCC = Max., VOUT = 0.5V
[4, 5]
–30
–90
mA
ICC1
Power Supply
Current (Standby)
VI = VCC or GND (No Load)
Commercial
150
mA
Military/Industrial
170
mA
ICC2
Power Supply Current
VI = VCC or GND (No Load)
f = 1.0 MHz[4,6]
Commercial
200
mA
Military/Industrial
220
mA
tR
Recommended Input Rise Time
100
ns
tF
Recommended Input Fall Time
100
ns
Capacitance
Parameter
Description
Test Conditions
Max.
Unit
CIN
Input Capacitance
VIN = 2V, f = 1.0 MHz
10
pF
COUT
Output Capacitance
VOUT = 2.0V, f = 1.0 MHz
10
pF
AC Test Loads and Waveforms[7]
Notes:
2.
Minimum DC input is –0.3V. During transitions, the inputs may undershoot to –2.0V for periods less than 20 ns.
3.
Typical values are for TA = 25°C and VCC = 5V.
4.
Guaranteed by design but not 100% tested.
5.
Not more than one output should be tested at a time. Duration of the short circuit should not be more than one second. VOUT = 0.5V has been chosen to avoid
test problems caused by tester ground degradation.
6.
Measured with device programmed as a 16-bit counter.
7.
Part (a) in AC Test Load and Waveforms is used for all parameters except tER and tXZ, which is used for part (b) in AC Test Load and Waveforms. All external timing
parameters are measured referenced to external pins of the device.
3.0V
5V
OUTPUT
R1 464
Ω
R2
250
Ω
50 pF
INCLUDING
JIGAND
SCOPE
GND
90%
10%
90%
10%
≤ 6ns
≤ 6ns
5V
OUTPUT
R1 464
Ω
R2
250
Ω
(a)
(b)
OUTPUT
1.75V
Equivalent to:
THÉVENIN EQUIVALENT (commercial/military)
C344–4
C344–5
ALL INPUT PULSES
tf
5pF
C344–6
tR
tF
163
Ω
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