Cypress CY62158EV30 Manuale utente
8-Mbit (1024K x 8) Static RAM
CY62158EV30 MoBL®
Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600
Document #: 38-05578 Rev. *D Revised April 19, 2007
Features
• Very high speed: 45 ns
— Wide voltage range: 2.20V–3.60V
• Pin compatible with CY62158DV30
• Ultra low standby power
— Typical standby current: 2 µA
— Maximum standby current: 8 µA
• Ultra low active power
— Typical active current: 1.8 mA @ f = 1 MHz
• Easy memory expansion with CE1, CE2, and OE features
• Automatic power down when deselected
• CMOS for optimum speed/power
• Offered in Pb-free 48-ball VFBGA, 44-pin TSOP II and
48-pin TSOP I packages[1]
Functional Description [2]
The CY62158EV30 is a high performance CMOS static RAM
organized as 1024K words by 8 bits. This device features
advanced circuit design to provide ultra low active current.
This is ideal for providing More Battery Life™ (MoBL®) in
portable applications such as cellular telephones. The device
also has an automatic power down feature that significantly
reduces power consumption. Placing the device into standby
mode reduces power consumption significantly when
deselected (CE1 HIGH or CE2LOW). The eight input and
output pins (IO0through IO7) are placed in a high impedance
state when the device is deselected (CE1 HIGH or CE2LOW),
the outputs are disabled (OE HIGH), or a write operation is in
progress (CE1 LOW and CE2HIGH and WE LOW).
To write to the device, take Chip Enables (CE1 LOW and CE2
HIGH) and Write Enable (WE) input LOW. Data on the eight
IO pins (IO0through IO7) is then written into the location
specified on the address pins (A0through A19).
To read from the device, take Chip Enables (CE1 LOW and
CE2HIGH) and OE LOW while forcing the WE HIGH. Under
these conditions, the contents of the memory location
specified by the address pins appear on the IO pins. See the
“Truth Table” on page 8 for a complete description of read and
write modes.
Logic Block Diagram
A0IO0
IO7
IO1
IO2
IO3
IO4
IO5
IO6
A1
A2
A3
A4
A5
A6
A7
A8
A9
SENSE AMPS
POWER
DOWN
WE
OE
A13
A14
A15
A16
ROW DECODER
COLUMN DECODER
1024K x 8
ARRAY
DATA IN DRIVERS
A10
A11
A17
CE1
CE2
A12
A18
A19
Notes
1. For 48 pin TSOP I pin configuration and ordering information, please refer to CY62157EV30 Data sheet.
2. For best practice recommendations, refer to the Cypress application note “System Design Guidelines” at http://www.cypress.com.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 2 of 11
Pin Configurations [3]
Product Portfolio
Product
VCC Range (V) Speed
(ns)
Power Dissipation
Operating ICC (mA)
Standby, ISB2 (µA)
f = 1 MHz f = fmax
Min Typ[4] Max Typ[4] Max Typ[4] Max Typ[4] Max
CY62158EV30LL 2.2 3.0 3.6 45 1.8 3 18 25 2 8
Top View
WE
V
CC
A11
A10
A6
A0
A3CE1
IO0
A4
A5
IO1
IO2
IO3
A9
A8
OE
V
SS A7
CE2
A17
A2
A1
V
CC
IO4
IO
5
IO6
IO7
A15
A14
A13
A
12
NC
A18 A19
3
26
5
4
1
D
E
B
A
C
F
G
H
A16 V
SS
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
48-Ball VFBGA
WE
1
2
3
4
5
6
7
8
9
10
11
14 31
32
36
35
34
33
37
40
39
38
12
13
41
44
43
42
16
15
29
30
VCC
A19
A18
A17
A16
A4
A3
OE
VSS
A5
NC
A2
CE1
IO 0
NC
NC
CE2
A1
A0
18
17
20
19
IO 1
27
28
25
26
22
21
23
24
VSS
NC
IO 2
IO 3
NC
A6
A7
A8
VCC
NC
IO 7
IO 6
IO 5
IO 4
NC
NC
A10
A11
A12
A13
A15 A14
A9
Top View
44-Pin TSOPII
Notes
3. NC pins are not connected on the die.
4. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ), TA= 25°C.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 3 of 11
Maximum Ratings
Exceeding the maximum ratings may impair the useful life of
the device. These user guidelines are not tested.
Storage Temperature ..................................–65°C to +150°C
Ambient Temperature with
Power Applied.............................................–55°C to +125°C
Supply Voltage to Ground Potential –0.3V to VCC(max) + 0.3V
DC Voltage Applied to Outputs
in High-Z State[5, 6]......................... –0.3V to VCC(max) + 0.3V
DC Input Voltage[5, 6] ..................... –0.3V to VCC(max) + 0.3V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage............................................ >2001V
(MIL-STD-883, Method 3015)
Latch up Current......................................................>200 mA
Operating Range
Product Range
Ambient
Temperature
(TA)
VCC[7]
CY62158EV30LL Industrial –40°C to +85°C 2.2V – 3.6V
Electrical Characteristics (Over the Operating Range)
Parameter Description Test Conditions 45 ns Unit
Min Typ[4] Max
VOH Output HIGH Voltage IOH = –0.1 mA 2.0 V
IOH = –1.0 mA, VCC >2.70V 2.4 V
VOL Output LOW Voltage IOL = 0.1 mA 0.4 V
IOL = 2.1 mA, VCC >2.70V 0.4 V
VIH Input HIGH Voltage VCC = 2.2V to 2.7V 1.8 VCC + 0.3V V
VCC = 2.7V to 3.6V 2.2 VCC + 0.3V V
VIIL Input LOW Voltage VCC = 2.2V to 2.7V –0.3 0.6 V
VCC = 2.7V to 3.6V –0.3 0.8 V
IIX Input Leakage Current GND < VI <VCC –1 +1 µA
IOZ Output Leakage Current GND < VO <VCC, Output Disabled –1 +1 µA
ICC VCC Operating Supply Current f = fmax = 1/tRC VCC = VCCmax
IOUT = 0 mA
CMOS levels
18 25 mA
f = 1 MHz 1.8 3 mA
ISB1 Automatic CE
Power down Current —
CMOS Inputs
CE1> VCC – 0.2V, CE2< 0.2V
VIN > VCC – 0.2V, VIN < 0.2V)
f = fmax (Address and Data Only),
f = 0 (OE and WE), VCC = 3.60V
28µA
ISB2[8] Automatic CE
Power down Current —
CMOS Inputs
CE1> VCC – 0.2V or CE2 <0.2V,
VIN > VCC – 0.2V or VIN < 0.2V,
f = 0, VCC = 3.60V
28µA
Capacitance[9]
Parameter Description Test Conditions Max Unit
CIN Input Capacitance TA= 25°C, f = 1 MHz,
VCC = VCC(typ)
10 pF
COUT Output Capacitance 10 pF
Notes
5. VIL(min) = –2.0V for pulse durations less than 20 ns.
6. VIH(max)= VCC + 0.75V for pulse duration less than 20 ns.
7. Full device AC operation assumes a 100 µs ramp time from 0 to VCC(min) and 200 µs wait time after VCC stabilization.
8. Only chip enables (CE1and CE2) must be at CMOS level to meet the ISB2 / ICCDR spec. Other inputs can be left floating.
9. Tested initially and after any design or process changes that may affect these parameters.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 4 of 11
Thermal Resistance[9]
Parameter Description Test Conditions BGA TSOP II Unit
ΘJA Thermal Resistance
(Junction to Ambient)
Still Air, soldered on a 3 x 4.5 inch,
two-layer printed circuit board
72 76.88 °C/W
ΘJC Thermal Resistance
(Junction to Case)
8.86 13.52 °C/W
AC Test Loads and Waveforms
VCC
VCC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
OUTPUT VTH
Equivalent to: THÉVENIN EQUIVALENT
ALL INPUT PULSES
RTH
R1
Fall time: 1 V/ns
Rise Time: 1 V/ns
Parameters 2.5V 3.0V Unit
R1 16667 1103 Ω
R2 15385 1554 Ω
RTH 8000 645 Ω
VTH 1.20 1.75 V
Data Retention Characteristics (Over the Operating Range)
Parameter Description Conditions Min Typ[4] Max Unit
VDR VCC for Data Retention 1.5 V
ICCDR[8] Data Retention Current VCC = 1.5V, CE1> VCC − 0.2V
or CE2< 0.2V, VIN > VCC − 0.2V
or VIN < 0.2V
25µA
tCDR[9] Chip Deselect to Data
Retention Time
0ns
tR[10] Operation Recovery
Time
tRC ns
Data Retention Waveform
VCC, min
VCC, min
tCDR
VDR >1.5V
tR
CE1
VCC
CE2
DATA RETENTION MODE
or
Note
10. Full Device AC operation requires linear VCC ramp from VDR to VCC(min) > 100 µs or stable at VCC(min) > 100 µs.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 5 of 11
Switching Characteristics (Over the Operating Range) [11]
Parameter Description 45 ns Unit
Min Max
Read Cycle
tRC Read Cycle Time 45 ns
tAA Address to Data Valid 45 ns
tOHA Data Hold from Address Change 10 ns
tACE CE1 LOW and CE2 HIGH to Data Valid 45 ns
tDOE OE LOW to Data Valid 22 ns
tLZOE OE LOW to Low Z[12] 5ns
tHZOE OE HIGH to High Z[12, 13] 18 ns
tLZCE CE1 LOW and CE2 HIGH to Low Z[12] 10 ns
tHZCE CE1 HIGH or CE2 LOW to High Z[12, 13] 18 ns
tPU CE1 LOW and CE2 HIGH to Power Up 0 ns
tPD CE1 HIGH or CE2 LOW to Power Down 45 ns
Write Cycle[14]
tWC Write Cycle Time 45 ns
tSCE CE1 LOW and CE2 HIGH to Write End 35 ns
tAW Address Setup to Write End 35 ns
tHA Address Hold from Write End 0 ns
tSA Address Setup to Write Start 0 ns
tPWE WE Pulse Width 35 ns
tSD Data Setup to Write End 25 ns
tHD Data Hold from Write End 0 ns
tHZWE WE LOW to High Z[12, 13] 18 ns
tLZWE WE HIGH to Low Z[12] 10 ns
Notes
11. Test conditions for all parameters other than tri-state parameters assume signal transition time of 3 ns or less (1V/ns), timing reference levels of VCC(typ)/2, input
pulse levels of 0 to VCC(typ), and output loading of the specified IOL/IOH as shown in “AC Test Loads and Waveforms” on page 4.
12. 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.
13. tHZOE, tHZCE, and tHZWE transitions are measured when the outputs enter a high impedance state.
14. The internal write time of the memory is defined by the overlap of WE, CE1 = VIL, and CE2 = VIH. All signals must be ACTIVE to initiate a write and any of these
signals can terminate a write by going INACTIVE. The data input setup and hold timing should be referenced to the edge of the signal that terminates the write.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 6 of 11
Switching Waveforms
Read Cycle No. 1 (Address Transition Controlled)[15, 16]
Read Cycle No. 2 (OE Controlled)[16, 17]
ADDRESS
DATA OUT PREVIOUS DATA VALID DATA VALID
tRC
tAA
tOHA
50%
50%
DATA VALID
tRC
tACE
tDOE
tLZOE
tLZCE
tPU
HIGH IMPEDANCE
tHZOE
tHZCE
tPD
HIGH
ICC
ISB
IMPEDANCE
OE
CE1
ADDRESS
CE2
DATA OUT
SUPPLY
CURRENT
VCC
Notes
15. Device is continuously selected. OE, CE1= VIL, CE2= VIH.
16. WE is HIGH for read cycle.
17. Address valid before or similar to CE1transition LOW and CE2transition HIGH.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 7 of 11
Write Cycle No. 1 (WE Controlled)[14, 18, 19]
Write Cycle No. 2 (CE1 or CE2 Controlled)[14, 18, 19]
Switching Waveforms (continued)
tHD
tSD
tPWE
tSA
tHA
tAW
tSCE
tWC
t
HZOE
VALID DATA
NOTE 20
CE1
ADDRESS
CE2
WE
DATA IO
OE
tWC
VALID DATA
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
CE1
ADDRESS
CE2
WE
DATA IO
OE
Notes
18. Data IO is high impedance if OE = VIH.
19. If CE1goes HIGH or CE2goes LOW simultaneously with WE HIGH, the output remains in high impedance state.
20. During this period, the IOs are in output state. Do not apply input signals.
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 8 of 11
Write Cycle No. 3 (WE Controlled, OE LOW)[19]
Truth Table
CE1CE2WE OE Inputs/Outputs Mode Power
H X X X High Z Deselect/Power Down Standby (ISB)
X L X X High Z Deselect/Power Down Standby (ISB)
L H H L Data Out Read Active (ICC)
L H H H High Z Output Disabled Active (ICC)
L H L X Data in Write Active (ICC)
Ordering Information
Speed
(ns) Ordering Code Package
Diagram Package Type Operating
Range
45 CY62158EV30LL-45BVXI 51-85150 48-ball Very Fine Pitch Ball Grid Array (Pb-free) Industrial
CY62158EV30LL-45ZSXI 51-85087 44-pin TSOP II (Pb-free)
Switching Waveforms (continued)
VALID DATA
tHD
tSD
tLZWE
tPWE
tSA
tHA
tAW
tSCE
tWC
tHZWE
NOTE 20
CE1
ADDRESS
CE2
WE
DATA IO
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 9 of 11
Package Diagrams
Figure 1. 48-Ball VFBGA (6 x 8 x 1 mm), 51-85150
A
1
A1 CORNER
0.75
0.75
Ø0.30±0.05(48X)
Ø0.25 M C A B
Ø0.05 M C
B
A
0.15(4X)
0.21±0.05
1.00 MAX
C
SEATING PLANE
0.55 MAX.
0.25 C
0.10 C
A1 CORNER
TOP VIEW BOTTOM VIEW
234
3.75
5.25
B
C
D
E
F
G
H
65
465231
D
H
F
G
E
C
B
A
6.00±0.10
8.00±0.10
A
8.00±0.10
6.00±0.10
B
1.875
2.625
0.26 MAX.
51-85150-*D
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CY62158EV30 MoBL®
Document #: 38-05578 Rev. *D Page 10 of 11
© Cypress Semiconductor Corporation, 2004-2007. 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.
Figure 2. 44-Pin TSOP II, 51-85087
MoBL is a registered trademark, and More Battery Life is a trademark of Cypress Semiconductor. All product and company names
mentioned in this document are the trademarks of their respective holders.
Package Diagrams (continued)
51-85087-*A
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