Cypress CY7C1021BNV33 64k x 16 static ram Datasheet

CY7C1021BNV33
64K x 16 Static RAM
Functional Description[1]
Features
• 3.3V operation (3.0V–3.6V)
The CY7C1021BNV is a high-performance CMOS static RAM
organized as 65,536 words by 16 bits. This device has an
automatic power-down feature that significantly reduces
power consumption when deselected.
• High speed
— tAA = 10, 12, 15 ns
• CMOS for optimum speed/power
Writing to the device is accomplished by taking Chip Enable
(CE) and Write Enable (WE) inputs LOW. If Byte Low Enable
(BLE) is LOW, then data from I/O pins (I/O1 through I/O8), is
written into the location specified on the address pins (A0
through A15). If Byte High Enable (BHE) is LOW, then data
from I/O pins (I/O9 through I/O16) is written into the location
specified on the address pins (A0 through A15).
• Low Active Power (L version)
— 576 mW (max.)
• Low CMOS Standby Power (L version)
— 1.80 mW (max.)
• Automatic power-down when deselected
• Independent control of upper and lower bits
• Available in 44-pin TSOP II and 400-mil SOJ
• Available in a 48-Ball Mini BGA package
Reading from the device is accomplished by taking Chip
Enable (CE) and Output Enable (OE) LOW while forcing the
Write Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW,
then data from the memory location specified by the address
pins will appear on I/O1 to I/O8. If Byte High Enable (BHE) is
LOW, 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 complete
description of read and write modes.
The input/output pins (I/O1 through I/O16) are placed in a
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 CY7C1021BNV is available in 400-mil-wide SOJ,
standard 44-pin TSOP Type II, and 48-ball mini BGA
packages.
Logic Block Diagram
Pin Configurations
SOJ / TSOP II
Top View
SENSE AMPS
A7
A6
A5
A4
A3
A2
A1
A0
ROW DECODER
DATA IN DRIVERS
64K x 16
RAM Array
512 X 2048
I/O1–I/O8
I/O9–I/O16
COLUMN DECODER
A8
A9
A10
A11
A12
A13
A14
A15
BHE
WE
CE
OE
BLE
A4
A3
A2
A1
A0
CE
I/O1
I/O2
I/O3
I/O4
VCC
VSS
I/O5
I/O6
I/O7
I/O8
WE
A15
A14
A13
A12
NC
1
44
2
3
43
42
4
41
40
39
38
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A5
A6
A7
OE
BHE
BLE
I/O16
I/O15
I/O14
I/O13
VSS
VCC
I/O12
I/O11
I/O10
I/O9
NC
A8
A9
A10
A11
NC
Note:
1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com
Cypress Semiconductor Corporation
Document #: 001-06433 Rev. **
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised February 1, 2006
CY7C1021BNV33
Selection Guide
-10
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum CMOS Standby Current (mA)
-12
-15
10
12
15
Commercial
160
150
140
Industrial
180
170
160
5
5
5
0.5
0.5
0.5
Commercial/Industrial
L
Pin Configurations
Mini BGA
(Top View)
1
2
3
4
5
6
BLE
OE
A0
A1
A2
NC
A
I/O9 BHE
A3
A4
CE
I/O1
B
I/O10 I/O11
A5
A6
I/O2
I/O3
C
VSS I/O12 NC
A7
I/O4 VCC
D
VCC I/O13 NC
NC
I/O5
VSS
E
I/O15 I/O14 A14
A15 I/O6
I/O7
F
I/O16 NC
NC
Document #: 001-06433 Rev. **
A8
A12
A13
WE I/O8
G
A9
A10
A11
H
NC
Page 2 of 10
CY7C1021BNV33
DC Input Voltage[1] .................................. –0.5V to VCC+0.5V
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................. –65°C to +150°C
Current into Outputs (LOW)......................................... 20 mA
Static Discharge Voltage............................................ >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current ..................................................... >200 mA
Ambient Temperature with
Power Applied............................................. –55°C to +125°C
Operating Range
Supply Voltage on VCC to Relative GND[1] .... –0.5V to +4.6V
Range
DC Voltage Applied to Outputs
in High Z State[1] ......................................–0.5V to VCC+0.5V
Ambient Temperature
VCC
0°C to +70°C
3.3V ± 10%
–40°C to +85°C
3.3V ± 10%
Commercial
Industrial
Electrical Characteristics Over the Operating Range
-12
-10
Parameter
Description
Test Conditions
Min.
VOH
Output HIGH Voltage VCC = Min., IOH = –4.0 mA
VOL
Output LOW Voltage VCC = Min., IOL = 8.0 mA
VIH
Input HIGH Voltage
VIL
Input LOW Voltage[1]
IIX
Input Load Current
GND < VI < VCC
IOZ
Output Leakage
Current
GND < VI < VCC,
Output Disabled
ICC
VCC Operating
Supply Current
VCC = Max., IOUT=0mA Com’l
f = fMAX = 1/tRC
Ind’l
Max.
2.4
Min.
-15
Max.
Min.
2.4
Max.
2.4
0.4
Unit
V
0.4
V
2.2
VCC+0.3V
2.2
VCC+0.3V
0.4
2.2
VCC+0.3V
V
−0.3
0.8
–0.3
0.8
–0.3
0.8
V
−1
+1
–1
+1
–1
+1
µA
−1
+1
–1
+1
–1
+1
µA
160
150
140
mA
120
170
160
mA
ISB1
Automatic CE
Max. VCC, CE > VIH,
Powerdown Current VIN > VIH or VIN < VIL,
—TTL Inputs
f = fMAX
40
40
40
mA
ISB2
Automatic CE
Power Down
Current
—CMOS Inputs
5
5
5
mA
500
500
500
µA
Max. VCC,
CE > VCC–0.3V,
L
VIN > VCC –0.3V or VIN
<0.3V, f = 0
Capacitance[2]
Parameter
Description
CIN
Input Capacitance
COUT
Output Capacitance
Test Conditions
TA = 25°C, f = 1 MHz
Max.
Unit
6
pF
8
pF
AC Test Loads and Waveforms
R 317Ω
R 317Ω
3.3V
3.3V
OUTPUT
90%
OUTPUT
30 pF
R2
351Ω
INCLUDING
JIG AND
SCOPE
(a)
5 pF
R2
351 Ω
INCLUDING
JIG AND
SCOPE
(b)
167
OUTPUT
Equivalent to: THÉVENIN
EQUIVALENT
ALL INPUT PULSES
3.0V
GND
Rise Time: 1 V/ns
10%
90%
10%
Fall Time: 1 V/ns
1.73V
30 pF
Note:
1. Minimum voltage is –2.0V for pulse durations of less than 20 ns.
2. Tested initially and after any design or process changes that may affect these parameters.
Document #: 001-06433 Rev. **
Page 3 of 10
CY7C1021BNV33
Switching Characteristics[3] Over the Operating Range
-10
Parameter
Description
Min.
-12
Max.
Min.
-15
Max.
Min.
Max.
Unit
READ CYCLE
tRC
Read Cycle Time
tAA
Address to Data Valid
tOHA
Data Hold from Address Change
tACE
CE LOW to Data Valid
tDOE
OE LOW to Data Valid
tLZOE
OE LOW to Low Z
tHZOE
10
OE HIGH to High Z
12
10
3
12
6
0
5
Z[5]
3
12
4
0
ns
15
ns
7
ns
0
6
ns
7
3
ns
CE LOW to Low
tHZCE
CE HIGH to High Z[4, 5]
tPU
CE LOW to Power-Up
tPD
CE HIGH to Power-Down
12
12
15
ns
tDBE
Byte Enable to Data Valid
5
6
7
ns
tLZBE
Byte Enable to Low Z
tHZBE
Byte Disable to High Z
5
0
3
ns
tLZCE
WRITE
3
ns
15
3
10
[4, 5]
15
6
0
0
0
0
5
ns
7
ns
0
6
ns
ns
7
ns
CYCLE[6]
tWC
Write Cycle Time
10
12
15
ns
tSCE
CE LOW to Write End
8
9
10
ns
tAW
Address Set-Up to Write End
7
8
10
ns
tHA
Address Hold from Write End
0
0
0
ns
tSA
Address Set-Up to Write Start
0
0
0
ns
tPWE
WE Pulse Width
8
8
10
ns
tSD
Data Set-Up to Write End
6
6
8
ns
tHD
Data Hold from Write End
0
0
0
ns
Z[5]
tLZWE
WE HIGH to Low
tHZWE
WE LOW to High Z[4, 5]
tBW
Byte Enable to End of Write
3
3
5
8
3
6
ns
7
8
9
ns
ns
Data Retention Characteristics Over the Operating Range (L version only)
Parameter
Conditions[7]
Description
VDR
VCC for Data Retention
ICCDR
Data Retention Current
tCDR[8]
Chip Deselect to Data Retention Time
tR
[9]
Operation Recovery Time
Min.
Max.
2.0
Com’l
VCC = VDR = 2.0V,
CE > VCC – 0.3V,
VIN > VCC – 0.3V or VIN < 0.3V
Unit
V
100
µA
0
ns
tRC
ns
Notes:
3. 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
IOL/IOH and 30-pF load capacitance.
4. tHZOE, tHZBE, tHZCE, and tHZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state
voltage.
5. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device.
6. The internal write time of the memory is defined by the overlap of CE LOW, WE LOW and BHE / BLE LOW. CE, WE and BHE / BLE must be LOW to initiate a
write, and the transition of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the signal
that terminates the write.
7. No input may exceed VCC + 0.5V.
8. Tested initially and after any design or process changes that may affect these parameters.
9. tr < 3 ns for the -12 and -15 speeds. tr < 5 ns for the -20 and slower speeds.
Document #: 001-06433 Rev. **
Page 4 of 10
CY7C1021BNV33
Data Retention Waveform
DATA RETENTION MODE
3.0V
VCC
VDR > 2V
3.0V
tR
tCDR
CE
Switching Waveforms
Read Cycle No. 1[10, 11]
tRC
ADDRESS
tAA
tOHA
DATA OUT
PREVIOUS DATA VALID
DATA VALID
Read Cycle No. 2 (OE Controlled)[11, 12]
ADDRESS
tRC
CE
tACE
OE
tHZOE
tDOE
BHE, BLE
tLZOE
tHZCE
tDBE
tLZBE
DATA OUT
HIGH IMPEDANCE
tLZCE
VCC
SUPPLY
CURRENT
tHZBE
HIGH
IMPEDANCE
DATA VALID
tPD
tPU
50%
IICC
CC
50%
IISB
SB
Notes:
10. Device is continuously selected. OE, CE, BHE and/or BHE = VIL.
11. WE is HIGH for read cycle.
12. Address valid prior to or coincident with CE transition LOW.
Document #: 001-06433 Rev. **
Page 5 of 10
CY7C1021BNV33
Switching Waveforms (continued)
Write Cycle No. 1 (CE Controlled)[13, 14]
tWC
ADDRESS
CE
tSA
tSCE
tAW
tHA
tPWE
WE
tBW
BHE, BLE
tSD
tHD
DATA I/O
Write Cycle No. 2 (BLE or BHE Controlled)
tWC
ADDRESS
BHE, BLE
tSA
tBW
tAW
tHA
tPWE
WE
tSCE
CE
tSD
tHD
DATA I/O
Notes:
13. Data I/O is high impedance if OE or BHE and/or BLE= VIH.
14. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
Document #: 001-06433 Rev. **
Page 6 of 10
CY7C1021BNV33
Switching Waveforms (continued)
Write Cycle No. 2 (WE Controlled, OE LOW)
tWC
ADDRESS
tSCE
CE
tAW
tHA
tSA
tPWE
WE
tBW
BHE, BLE
tHZWE
tSD
tHD
DATA I/O
tLZWE
Truth Table
CE
OE
WE
H
X
L
L
L
X
BLE
BHE
X
X
X
High Z
High Z
Power-Down
Standby (ISB)
H
L
L
Data Out
Data Out
Read - All bits
Active (ICC)
L
H
Data Out
High Z
Read - Lower bits only
Active (ICC)
H
L
High Z
Data Out
Read - Upper bits only
Active (ICC)
L
L
Data In
Data In
Write - All bits
Active (ICC)
L
H
Data In
High Z
Write - Lower bits only
Active (ICC)
H
L
High Z
Data In
Write - Upper bits only
Active (ICC)
L
I/O1–I/O8
I/O9–I/O16
Mode
Power
L
H
H
X
X
High Z
High Z
Selected, Outputs Disabled
Active (ICC)
L
X
X
H
H
High Z
High Z
Selected, Outputs Disabled
Active (ICC)
Document #: 001-06433 Rev. **
Page 7 of 10
CY7C1021BNV33
Ordering Information
Speed (ns)
10
12
15
Ordering Code
Package
Diagram
Operating
Range
Package Type
CY7C1021BNV33L-10VXC
51-85082
44-Lead (400-Mil) Molded SOJ (Pb-free)
CY7C1021BNV33L-10ZXC
51-85087
44-Lead TSOP Type II (Pb-free)
CY7C1021BNV33L-12ZC
51-85087
44-Lead TSOP Type II
CY7C1021BNV33L-12ZXC
51-85087
44-Lead TSOP Type II (Pb-free)
CY7C1021BNV33L-15ZC
51-85087
44-Lead TSOP Type II
CY7C1021BNV33L-15ZXC
51-85087
44-Lead TSOP Type II (Pb-free)
CY7C1021BNV33L-15VXC
51-85082
44-Lead (400-Mil) Molded SOJ (Pb-free)
CY7C1021BNV33L-15BAI
51-85096
48-ball Mini Ball Grid Array (7 mm x 7 mm)
CY7C1021BNV33L-15VXI
51-85082
44-Lead (400-Mil) Molded SOJ (Pb-free)
CY7C1021BNV33L-15ZXI
51-85087
44-Lead TSOP Type II (Pb-free)
CY7C1021BNV33L-15ZI
51-85087
44-Lead TSOP Type II
Commercial
Industrial
Please contact local sales representative regarding availability of these parts.
Package Diagrams
48-ball FBGA (7 mm x 7 mm x 1.2 mm) (51-85096)
BOTTOM VIEW
TOP VIEW
PIN 1 CORNER
Ø0.05 M C
PIN 1 CORNER
(LASER MARK)
Ø0.25 M C A B
Ø0.30±0.05(48X)
1 2
3
4
5
6
6
4
3
2
1
C
C
F
G
D
E
F
2.625
E
0.75
B
5.25
A
B
7.00±0.10
A
D
7.00±0.10
5
G
H
H
A
A
1.875
0.75
B
7.00±0.10
3.75
7.00±0.10
0.15(4X)
0.10 C
0.21±0.05
0.53±0.05
0.25 C
B
51-85096-*F
0.36
SEATING PLANE
C
Document #: 001-06433 Rev. **
1.20 MAX.
Page 8 of 10
CY7C1021BNV33
Package Diagrams (continued)
44-Lead (400-Mil) Molded SOJ (51-85082)
51-85082-*B
44-Pin TSOP Type II (51-85087)
51-85087-*A
All product and company names mentioned in this document may be the trademarks of their respective holders.
Document #: 001-06433 Rev. **
Page 9 of 10
© Cypress Semiconductor Corporation, 2006. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
CY7C1021BNV33
Document History Page
Document Title: CY7C1021BNV33 64K x 16 Static RAM
Document Number: 001-06433
REV.
**
ECN NO.
423847
Issue
Date
See ECN
Document #: 001-06433 Rev. **
Orig. of
Change
NXR
Description of Change
New Data Sheet
Page 10 of 10
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