CY7C107-20VC中文资料
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1M x 1 Static RAM CY7C107
CY7C1007
CypressSemiconductorCorporation•3901NorthFirstStreet•SanJose•CA 95134•408-943-2600
December 1992 – Revised September 3, 1999Features
•High speed
—t
AA = 12 ns
•CMOS for optimum speed/power
•Low active power
—825 mW
•Low standby power
—275 mW
•2.0V data retention (optional)
—100 µW
•Automatic power-down when deselected
•TTL-compatible inputs and outputs
Functional Description
The CY7C107 and CY7C1007 are high-performance CMOS
static RAMs organized as 1,048,576 words by 1 bit. Easymemory expansion is provided by an active LOW Chip Enable
(CE) and three-state drivers. These devices have an automatic
power-down feature that reduces power consumption by more
than 65% when deselected.
Writing to the devices is accomplished by taking Chip Enable
(CE) and Write Enable (WE) inputs LOW. Data on the input pin
(D
IN) is written into the memory location specified on the ad-
dress pins (A
0 through A
19).
Reading from the devices is accomplished by taking Chip En-
able (CE) LOW while Write Enable (WE) remains HIGH. Under
these conditions, the contents of the memory location speci-
fied by the address pins will appear on the data output (D
OUT)
pin.
The output pin (D
OUT) is placed in a high-impedance state
when the device is deselected (CE HIGH) or during a write
operation (CE and WE LOW).
The CY7C107 is available in a standard 400-mil-wide SOJ; the
CY7C1007 is available in a standard 300-mil-wide SOJ.
LogicBlockDiagramPinConfiguration
Top ViewSOJ
512x2048
ARRAYA
5
A
6
A
7
COLUMN
DECODERROW DECODER
SENSE AMPS
POWER
DOWN
WECEINPUT BUFFER
D
OUTD
IN
A
4A
3A
2A
1A
01
2
3
4
5
6
7
8
9
10
11
14151620
19
18
172124
23
22
12
132528
27
26
GNDA
11
A
12
A
13
A
14
WEV
CC
A
9A
10
CEA
0D
OUT
D
INA
8
A
7
A
6
A
2
A
1A
4
NCNCA
15
A
16
A
8
A12
A14
A16
A15
A10
A11
A13
A17
A18
A19A
17
A
18
A
19A
5
A
3
A9
107-1107-2
Selection Guide
7C107-12
7C1007-127C107-15
7C1007-157C107-20
7C1007-207C107-25
7C1007-257C107-35
Maximum Access Time (ns)1215202535
Maximum Operating
Current (mA)150135125120110
Maximum Standby
Current (mA)5040303025元器件交易网www.cecb2b.com
CY7C107
CY7C1007
2Maximum 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 on V
CC Relative to GND[1].....−0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State[1].......................................−0.5V to V
CC + 0.5V
DC Input Voltage[1]....................................−0.5V to V
CC + 0.5VCurrent into Outputs (LOW).........................................20 mA
Static Discharge Voltage...........................................>2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current.....................................................>200 mA
Notes:
1.V
IL (min.) = –2.0V for pulse durations of less than 20 ns.
2.T
A is the “instant on” case temperature.
3.Not more than 1 output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.Operating Range
RangeAmbient
Temperature[2]V
CC
Commercial0°C to +70°C 5V ± 10%
Industrial−40°C to +85°C 5V ± 10%
Electrical Characteristics Over the Operating Range
ParameterDescriptionTest Conditions7C107-12
7C1007-127C107-15
7C1007-157C107-20
7C1007-20
Min.Max.Min.Max.Min.Max.Unit
V
OHOutput HIGH
VoltageV
CC = Min., I
OH = −4.0 mA2.42.42.4V
V
OLOutput LOW
VoltageV
CC = Min., I
OL = 8.0 mA0.40.40.4V
V
IHInput HIGH
Voltage2.2V
CC+
0.32.2V
CC+
0.32.2V
CC+
0.3V
V
ILInput LOW
Voltage[1]−0.30.8−0.30.8−0.30.8V
I
IXInput Load CurrentGND < V
I < V
CC−1+1−1+1−1+1µA
I
OZOutput Leakage
CurrentGND < V
I < V
CC,
Output Disabled–5+5–5+5–5+5µA
I
OSOutput Short
Circuit Current[3]V
CC = Max., V
OUT = GND−300−300−300mA
I
CCV
CC Operating
Supply CurrentV
CC = Max.,
I
OUT = 0 mA,
f = f
MAX = 1/t
RC150135125mA
I
SB1Automatic CE
Power-Down
Current— TTL InputsMax. V
CC, CE > V
IH,
V
IN >V
IH or V
IN < V
IL,
f = f
MAX504030mA
I
SB2Automatic CE
Power-Down
Current—
CMOS InputsMax. V
CC,
CE > V
CC – 0.3V,
V
IN > V
CC – 0.3V or
V
IN < 0.3V, f = 0222mA元器件交易网www.cecb2b.com
