cym1821 Cypress Semiconductor Corporation., cym1821 Datasheet - Page 2

• Manufacturer Part Number: cym1821
• Description: 16k X 32 Static Ram Module
• Manufacturer: Cypress Semiconductor Corporation.

Selection Guide
Maximum Ratings
(Above which the useful life may be impaired.)
Storage Temperature ................................. –65 C to +150 C
Ambient Temperature with
Power Applied............................................... –10 C to +85 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
Electrical Characteristics
Capacitance
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum Standby Current (mA)
V
V
V
V
I
I
I
I
I
I
C
C
C
Notes:
Parameter
IX
OZ
OS
CC
SB1
SB2
1.
2.
3.
OH
OL
IH
IL
INA
INB
OUT
Not more than 1 output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.
A pull-up resistor to V
Tested on a sample basis.
Parameter
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input Load Current
Output Leakage Current
Output Short Circuit Current
V
Automatic CS
Power-Down Current
Automatic CS
Power-Down Current
CC
[3]
Operating Supply Current
CC
Input Capacitance (ADDR, OE, WE)
Input Capacitance (CS)
Output Capacitance
Description
on the CS input is required to keep the device deselected during V
Over the Operating Range
[2]
[2]
Description
[1]
1821-12
V
V
GND < V
GND < V
V
V
CS < V
Max. V
Min. Duty Cycle = 100%
Max. V
V
960
450
12
CC
CC
CC
CC
IN
> V
= Min., I
= Min., I
= Max., V
= Max., I
CC
CC
IL
CC
I
O
, CS > V
, CS
< V
Test Conditions
– 0.3V or V
< V
1821-15
OH
OL
OUT
CC
960
450
N
OUT
CC
15
2
= 8.0 mA
> V
T
V
= –4.0 mA
, Output Disabled
A
CC
= 0 mA,
IH
DC Input Voltage ............................................–0.5V to +7.0V
Output Current into Outputs (LOW)............................. 20 mA
Operating Range
= GND
= 25 C, f = 1 MHz,
Commercial
CC
,
= 5.0V
IN
Test Conditions
– 0.3V,
Range
< 0.3V
1821-20
720
160
20
CC
power-up, otherwise I
1821-25
Min.
–0.5
–20
–20
2.4
2.2
720
160
Temperature
0 C to +70 C
25
1821-12
1821-15
Ambient
SB
Max.
–350
V
+20
+20
960
450
160
0.4
0.8
CC
will exceed values given.
Max.
70
35
20
1821-35
720
160
Min.
35
–0.5
–20
–20
2.4
2.2
1821-20
1821-25
1821-35
1821-45
CYM1821
Max.
–350
V
+20
+20
720
160
160
0.4
0.8
5V
CC
1821-45
V
Unit
pF
pF
pF
720
160
CC
45
10%
Unit
mA
mA
mA
mA
V
V
V
V
A
A