The CY7C1011BV33 is a high-performance CMOS static
RAM organized as 131, 072 words by 16 bits. This device has
an automatic power-down feature that significantly reduces
power consumption when deselected.
Writing to the device is accomplished by taking Chip Enable
) and Write Enable (WE) inputs LOW. If Byte Low Enable
(CE
CY7C1011BV33
128K x 16 Static RAM
(BLE
) is LOW, then data from I/O pins (I/O1 through I/O8), is
written into the location specified on the address pins (A
through A15). If Byte High Enable (BHE) is LOW, then data
from I/O pins (I/O
specified on the address pins (A
Reading from the device is accomplished by taking Chip Enable (CE
) and Output Enable (OE) LOW while f orcing the Write
Enable (WE) HIGH. If Byte Low Enable (BLE) is LO W, then
data from the memory location specified by the address pins
will appear on I/O
then data from memory will appear on I/O9 to I/O16. See the
truth table at the back of this data sheet for a com plete description of read and write modes.
The input/output pins (I/O
high-impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), the BHE and BLE
are disabled (BHE, BLE HIGH), or during a write operation (CE
LOW, and WE LOW).
The CY7C1011BV33 is available in standard 44-pin TSOP
Type II package.
through I/O16) is written into the location
9
to I/O8. If Byte High Enable (BHE) is LOW,
1
through A16).
0
through I/O16) are placed in a
1
0
Logic Block Diagram
DATA IN DRIVERS
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
ROW DECODER
128K x 16
RAM Array
512 X 2048
COLUMN DECODER
9
8
A
A
A10A11A12A13A
I/O
–I/O
1
8
SENSE AMPS
14
16
A15A
I/O9–I/O
BHE
WE
CE
OE
BLE
1011B-1
16
Cypress Semiconductor Corporation•3901 North First Street•San Jose•CA 95134•408-943-2600
Document #: 38-05021 Rev. *A Revised June 6, 2001
Page 2
Pin Configuration
CE
I/O
I/O
I/O
I/O
V
V
I/O
I/O
I/O
I/O
WE
A16
A
A
A
A12
A
A
A
A
A
CC
SS
4
3
2
1
0
1
2
3
4
5
6
7
8
15
14
13
TSOP II
Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CY7C1011BV33
44
A
5
43
A
6
42
A
7
41
OE
40
BHE
39
BLE
38
I/O
16
37
I/O
15
36
I/O
14
35
I/O
13
34
V
SS
33
V
CC
32
I/O
12
31
I/O
11
30
I/O
10
29
I/O
9
28
NC
27
A
8
26
A
9
25
A
10
A
24
11
23
NC
1011B-2
Selection Guide
1011BV33-121011BV33-15
Maximum Access Time (ns)Commercial1215
Maximum Operating Current (mA)Commercial190170
Maximum CMOS Standby Current (mA)Commercial1010
Maximum Ratings
(Above which the useful life may be impai red. For user guidelines, 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
to Relative GND
CC
......................................–0.5V to VCC+0.5V
[1]
..................................–0.5V to VCC+0.5V
[1]
....–0.5V to +7.0V
Current into Outputs (LOW)........................................ 20 mA
Latch-Up Current.....................................................>200 mA
Operating Range
Range
Temperature
Commercial0°C to +70°C 3.3V ± 10%
Industrial–40°C to +85°C3.3V ± 10%
Ambient
[2]
Electrical Characteristics Ov er the Op erat ing Range
1011BV33-121011BV33-15
2.42.4V
0.40.4V
ParameterDescription
V
OH
V
OL
Output HIGH Voltage VCC = Min.,
Output LOW VoltageVCC = Min.,
= –4.0 mA
I
OH
= 8.0 mA
I
OL
Test
Conditions
V
CC
UnitMin.Max.Min.Max.
Document #: 38-05021 Rev. *APage 2 of 10
Page 3
Electrical Characteristics Ov er the Op erat ing Range (continued)
ParameterDescription
V
IH
V
IL
I
IX
I
OZ
Input HIGH Voltage2.22.2V
Input LOW Voltage
Input Load CurrentGND < VI < V
Output
Leakage
Current
I
OS
I
CC
Output Short
Circuit
[3]
Current
VCC
Operating
Supply
Current
I
SB1
Automatic CE
Power-Down Current
—TTL Inputs
I
SB2
Automatic CE
Power-Down Current
—CMOS
Inputs
[1]
GND < VI < VCC,
Output Disabled
VCC = Max.,
V
OUT
VCC = Max.,
I
OUT
f = f
Max. VCC,
> V
CE
VIN > VIH or
VIN < VIL,
f = f
Max. VCC,
> VCC – 0.3V , VIN
CE
VCC – 0.3V,
>
or VIN < 0.3V, f = 0
Conditions
= GND
= 0 mA,
= 1/t
MAX
IH
MAX
Test
CC
RC
L0.50.5
CY7C1011BV33
1011BV33-121011BV33-15
UnitMin.Max.Min.Max.
–0.30.8–0.30.8V
–1+1–1+1µA
–1+1–1+1µA
–300–300mA
190170mA
4040mA
1010mA
Capacitance
[4]
ParameterDescriptionTest ConditionsMax.Unit
C
IN
C
OUT
Input CapacitanceTA = 25°C, f = 1 MHz,
V
= 5.0V
Output Capacitance8pF
CC
8pF
AC Test Loads and Waveforms
(b)
R 481Ω
1011B-3
1.73V
R2
255
3.0V
GND
Ω
Rise Time: 1 V/nsFall Time:1 V/ns
ALL INPUT PULSES
90%
10%
Ω
5V
OUTPUT
30 pF
INCLUDING
JIG AND
SCOPE
Equivalent to:
Notes:
(min.) = –2.0V for pulse durations of less than 20 ns.
1. V
IL
is the “instant on” case temp erature.
2. T
A
3. Not more than one output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.
R 481
(a)
THÉVENIN
EQUIVALENT
OUTPUT
R2
Ω
255
OUTPUT
5V
5 pF
INCLUDING
JIG AND
SCOPE
167
30 pF
90%
10%
1011B-4
Document #: 38-05021 Rev. *APage 3 of 10
Page 4
CY7C1011BV33
Switching Characteristics
[5]
Over the Operating Range
1011BV33-121011BV33-15
ParameterDescription
UnitMin.Max.Min.Max.
READ CYCLE
t
RC
t
AA
t
OHA
t
ACE
t
DOE
t
LZOE
t
HZOE
t
LZCE
t
HZCE
t
PU
t
PD
t
DBE
t
LZBE
t
HZBE
Notes:
4. Tested initially and after any design or process changes that may affect these parameters.
5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
6. At any given temperature and voltage condition, t
7. t
and 30-pF load c apacitan ce.
I
OL/IOH
, t
HZOE
HZBE
Read Cycle T ime1215ns
Address to Data V a lid1215ns
Data Hold from Address Change33ns
CE LOW to Data Valid1215ns
OE LOW to Data Valid67ns
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
[6]
[6]
[6, 7]
[6, 7]
00ns
67ns
33ns
67ns
CE LOW to Power-Up00ns
CE HIGH to Power-Down1215ns
Byte Enable to Data Valid67ns
Byte Enable to Low Z00ns
Byte Disable to High Z67ns
, t
HZCE
, and t
is less than t
are specified w ith a load ca pacit ance of 5 pF as in part (b ) of AC Test L oads. T ransiti on i s measured ±500 mV from steady-state voltage.
HZWE
HZCE
LZCE
, t
HZOE
is less than t
LZOE
, and t
HZWE
is less than t
for any given device.
LZWE
Document #: 38-05021 Rev. *APage 4 of 10
Page 5
CY7C1011BV33
Switching Characteristics
[5]
Over the Operating Range
ParameterDescription
WRITE CYCLE
t
WC
t
SCE
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
LZWE
t
HZWE
t
BW
[8]
Write Cycle Time1215ns
CE LOW to Write End1012ns
Address Set-Up to Write End1012ns
Address Hold from Write End00ns
Address Set-Up to Write Start00ns
WE Pulse Width1012ns
Data Set-Up to Write End78ns
Data Hold from Write End00ns
WE HIGH to Low Z
WE LOW to High Z
Byte Enable to End of Write1012ns
Switching Waveforms
Read Cycle No. 1
ADDRESS
[9, 10]
[6]
[6, 7]
1011BV33-121011BV33-15
UnitMin.Max.Min.Max.
33ns
67ns
t
RC
t
t
OHA
DATA OUT
Note:
8. The internal write time of the memory is defined by the overlap of CE
and the transition of these sign als can terminate the write. The inpu t data set-up and hold timing should be refer enced to the leading edge of the si gnal that terminates the write.
9. Device is continuously selected. OE
10. WE
is HIGH for read cycle .
PREVIOUS DATA VALIDDATA VALID
, CE, BHE and/or BHE = VIL.
AA
LOW, W E LOW and BHE / BLE LOW. CE, WE and BHE / BLE must be LOW to initiate a write,
1011B-5
Document #: 38-05021 Rev. *APage 5 of 10
Page 6
Switching Waveforms (continued)
CY7C1011BV33
Read Cycle No. 2
(OEControlled)
ADDRESS
CE
OE
BHE, BLE
DATA OUT
V
CC
SUPPLY
HIGH IMPEDANCE
t
LZCE
t
PU
CURRENT
Write Cycle No. 1 (CE Controlled)
[10, 11]
t
ACE
t
DOE
t
LZOE
t
DBE
t
LZBE
[12, 13]
50%
t
RC
DATA VALID
t
HZOE
t
HZCE
t
HZBE
t
PD
50%
HIGH
IMPEDANCE
1011B-6
I
ICC
CC
I
ISB
SB
ADDRESS
t
CE
SA
WE
BHE, BLE
DATA I/O
Notes:
11. Address valid prior to or coincident with CE
12. Data I/O is high impedance if OE
13. If CE
goes HIGH simultaneousl y with WE going HIGH, the o utput remains in a hig h-imped ance stat e.