CYM1831
Document #: 38-05270 Rev. **
Page 2 of 8
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............................................. –55
°C to +125°C
Supply Voltage to Ground Potential ............... –0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State ............................................... –0.5V to +7.0V
DC Input Voltage............................................ –0.5V to +7.0V
Output Current into Outputs (LOW) .............................20 mA
Selection Guide
1831-15
1831-20
1831-25
1831-30
1831-35
1831-45
Maximum Access Time (ns)
15
20
25
30
35
45
Maximum Operating Current (mA)
1120
960
720
720
720
720
Maximum Standby Current (mA)
160
160
160
160
160
160
Operating Range
Range
Ambient
Temperature
VCC
Commercial
0
°C to +70°C
5V
± 10%
Electrical Characteristics Over the Operating Range
Parameter
Description
Test Conditions
1831-15
1831-20
1831-25, 30, 35,
45
Unit
Min.
Max.
Min.
Max.
Min.
Max.
VOH
Output HIGH Voltage
VCC = Min., IOH = –4.0 mA
2.4
2.4
2.4
V
VOL
Output LOW Voltage
VCC = Min., IOL = 8.0 mA
0.4
0.4
0.4
V
VIH
Input HIGH Voltage
2.2
VCC
2.2
VCC
2.2
VCC
V
VIL
Input LOW Voltage
–0.5
0.8
–0.5
0.8
–0.5
0.8
V
IIX
Input Load Current
GND < VI < VCC
–20
+20
–20
+20
–20
+20
µA
IOZ
Output Leakage
Current
GND < VO < VCC,
Output Disabled
–20
+20
–20
+20
–20
+20
µA
ICC
VCC Operating
Supply Current
VCC = Max., IOUT = 0 mA,
CSN < VIL
1120
960
720
mA
ISB1
Automatic CS Pow-
er-Down Current[1]
VCC = Max., CSN > VIH,
Min. Duty Cycle = 100%
320
320
320
mA
ISB2
Automatic CS Pow-
er-Down Current[1]
VCC = Max., CSN > VCC – 0.2V,
VIN > VCC – 0.2V or VIN < 0.2V
160
160
160
mA
Capacitance[2]
Parameter
Description
Test Conditions
Max.
Unit
CINA
Input Capacitance (A0–A15, WE, OE)
TA = 25°C, f = 1 MHz,
VCC = 5.0V
80
pF
CINB
Input Capacitance (CS)
15
pF
COUT
Output Capacitance
20
pF
Notes:
1.
A pull-up resistor to VCC on the CS input is required to keep the device deselected during VCC power-up, otherwise ISB will exceed values given.
2.
Tested on a sample basis.
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