Cypress CY7C107B, CY7C1007B User Manual
07B
CY7C107B
CY7C1007B
1M x 1 Static RAM
Features
• High speed
—t
= 12 ns
AA
• CMOS for optimum speed/power
• Automatic power-down when deselected
• TTL-compatible inputs and outputs
Functional Description
The CY7C107B and CY7C1007B are high-performance
CMOS static RAMs organized as 1,048,576 words by 1 bit.
Easy memory expansion is provided by an active LOW Chip
Enable (CE
automatic power-down feature that reduces power consumption by more than 65% when deselected.
) and thre e-state driver s. These devices have an
Writing to the devices is accomplished by taking Chip Enable
) and Write Enab le (WE) inputs LOW . Da ta on the input pi n
(CE
) is written into the memory location specified on the ad-
(D
IN
dress pins (A
through A19).
0
Reading from the devices is accomp lishe d by takin g Chip Enable (CE
) LOW while Writ e Enable (WE) remains HIGH. Under
these conditions, the contents of the memory location specified by the address pi ns will appea r on t he data output ( D
pin.
The output pin (D
when the devic e is deselected (CE
operation (CE
and WE LOW).
) is placed in a high-impedance state
OUT
HIGH) or during a write
The CY7C107B is available in a standard 400-mil-wide SOJ;
the CY7C1007B is available in a standard 300-mil-wide SOJ.
LogicBlockDiagram Pin Configuration
SOJ
A
A
A
A
A
A
NC
A
A
A
A
D
OUT
WE
GND
10
11
12
13
14
15
16
17
18
19
Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D
IN
INPUT BUFFER
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
ROW DECODER
512x2048
ARRA
COLUMN
DECODER
Y
D
OUT
SENSE AMPS
POWER
DOWN
CE
V
CC
A
9
A
8
A
7
A
6
A
5
A
4
NC
A
3
A
2
A
1
A
0
D
IN
CE
107B-2
OUT
)
9
A
A10A11A
13
A12A14A16A
A17A18A
19
15
WE
107B-1
Selection Guide
7C107B-12
7C1007B-12
Maximum Access Time (ns) 12 15 20 25 35
Maximum Operating
90 80 75 70 60
Current (mA)
Maximum CMOS Standby
2 2 2 2 2
Current SB2 (mA)
Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600
Document #: 38-05030 Rev. ** Revised September 7, 2001
7C107B-15
7C1007B-15
7C107B-20
7C1007B-20
7C107B-25
7C1007B-25
7C107B-35
7C1007B-35
[+] Feedback
CY7C107B
CY7C1007B
Maximum Ratings
(Above which the useful life may be impaired. For user guid elines, not tested.)
Storage Temperature .....................................−65°C to +150°C
Ambient Temperature with
Power Applied..................................................−55°C to +125°C
Supply Voltage on V
DC Voltage Applied to Outputs
in High Z State
[1]
DC Input Voltage
Relative to GND
CC
.......................................−0.5 V to VCC + 0.5V
[1]
....................................−0.5V to VCC + 0.5V
[1]
.....−0.5V to +7.0V
Electrical Characteristics Ov er the Op erat ing Range
Parameter Description Test Conditions
V
V
V
V
I
I
I
I
I
I
OH
OL
IH
IL
IX
OZ
OS
CC
SB1
SB2
Output HIGH
VCC = Min., IOH = −4.0 mA 2.4 2.4 2.4 V
Voltage
Output LOW
VCC = Min., IOL = 8.0 mA 0.4 0.4 0.4 V
Voltage
Input HIGH
Voltage
Input LOW
Voltage
[1]
Input Load Current GND < VI < V
Output Leakage
Current
Output Short
Circuit Current
[3]
VCC Operating
Supply Current
Automatic CE
Power-Down
Current— TTL Inputs
Automatic CE
Power-Down
Current—
CMOS Inputs
GND < VI < VCC,
Output D isab led
VCC = Max., V
VCC = Max.,
= 0 mA,
I
OUT
= 1/t
f = f
MAX
Max. V
V
IN
f = f
Max. V
CE
V
IN
VIN < 0.3V, f = 0
, CE > VIH,
CC
>V
or VIN < VIL,
IH
MAX
,
CC
> VCC – 0.3V ,
> VCC – 0.3V or
CC
= GND −300 −300 −300 mA
OUT
RC
Current into Outputs (LOW)........................................ 20 mA
Static Discharge Voltage ...........................................>2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current.....................................................>200 mA
Operating Range
Range
Temperature
Commercial 0°C to +70°C 5V ± 10%
Industrial −40°C to +85°C 5V ± 10%
Ambient
7C107B-12
7C1007B-12
7C107B-15
7C1007B-15
Min. Max. Min. Max. Min. Max. Unit
2.2 VCC+
0.3
2.2 VCC+
0.3
−0.3 0.8 −0.3 0.8 −0.3 0.8 V
−1+1−1+1−1+1µA
–5+5–5+5–5+5µA
90 80 75 mA
20 20 20 mA
222mA
[2]
7C107B-20
7C1007B-20
2.2 VCC+
0.3
V
CC
V
Notes:
(min.) = –2.0V for pulse durations of less than 20 ns.
1. V
IL
2. T
is the “Instant On” case temperature.
A
3. Not more than 1 output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.
Document #: 38-05030 Rev. ** Page 2 of 9
[+] Feedback
Electrical Characteristics Over the Operating Range (continued)
CY7C107B
CY7C1007B
Parameter Description Test Conditions
V
OH
V
OL
V
IH
V
IL
I
IX
I
OZ
I
OS
I
CC
I
SB1
I
SB2
Capacitance
Output HIGH
VCC = Min., IOH = −4.0 mA 2.4 2.4 V
Voltage
Output LOW Voltage VCC = Min., IOL = 8.0 mA 0.4 0.4 V
Input HIGH Voltage 2.2 V
Input LOW Voltage
Input Load Current GND < VI < V
Output Leakage
Current
Output Short
Circuit Current
VCC Operating
Supply Current
Automatic CE
Power-Down
Current—TTL Inputs
Automatic CE
Power-Down
Current—CMOS Inputs
[4]
[1]
CC
GND < VI < VCC,
Output Disabled
[3]
VCC = Max., V
OUT
VCC = Max.,
= 0 mA,
I
OUT
= 1/t
f = f
MAX
RC
Max. VCC, CE > VIH,
>VIH or VIN < VIL,
V
IN
f = f
MAX
Max. V
CE
V
IN
V
IN
,
CC
> VCC – 0.3V ,
> VCC – 0.3V or
< 0.3V , f = 0
7C107B-25
7C1007B-25
7C107B-35
7C1007B-35
Min. Max. Min. Max. Unit
+ 0.3 2.2 V
CC
+ 0.3 V
CC
−0.3 0.8 −0.3 0.8 V
−1+1−1+1µA
−5+5−5+5µA
= GND −300 −300 mA
70 60 mA
20 20 mA
22mA
Parameter Description Test Conditions Max. Unit
: Addr e sses Input Capacitance TA = 25°C, f = 1 MHz,
C
IN
CIN: Controls 10 pF
C
OUT
Note:
4. Tested initially and after any design or process changes that may affect these parameters.
Output Capacitance 10 pF
V
CC
= 5.0V
7pF
Document #: 38-05030 Rev. ** Page 3 of 9
[+] Feedback
Loading...