参数资料
型号: CY7C1157V18-333BZI
厂商: CYPRESS SEMICONDUCTOR CORP
元件分类: SRAM
英文描述: 18-Mbit DDR-II+ SRAM 2-Word Burst Architecture (2.0 Cycle Read Latency)
中文描述: 2M X 9 DDR SRAM, 0.45 ns, PBGA165
封装: 13 X 15 MM, 1.40 MM HEIGHT, MO-216, FBGA-165
文件页数: 13/27页
文件大小: 645K
代理商: CY7C1157V18-333BZI
CY7C1146V18, CY7C1157V18
CY7C1148V18, CY7C1150V18
Document Number: 001-06621 Rev. *D
Page 20 of 27
Maximum Ratings
Exceeding maximum ratings may shorten 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 on VDD Relative to GND .......–0.5V to + 2.9V
Supply Voltage on VDDQ Relative to GND..... –0.5V to + VDD
DC Applied to Outputs in High-Z .........–0.5V to VDDQ + 0.3V
DC Input Voltage[12]............................... –0.5V to VDD + 0.3V
Current into Outputs (LOW)......................................... 20 mA
Static Discharge Voltage (MIL-STD-883, M 3015).... >2001V
Latch up Current..................................................... >200 mA
Operating Range
Range
Ambient
Temperature
VDD
VDDQ
Commercial
0°C to +70°C
1.8 ± 0.1V
1.4V to
VDD
Industrial
–40°C to +85°C
Electrical Characteristics
The DC Electrical Characteristics over the operating range follows. [13]
Parameter
Description
Test Conditions
Min
Typ
Max
Unit
VDD
Power Supply Voltage
1.7
1.8
1.9
V
VDDQ
IO Supply Voltage
1.4
1.5
VDD
V
VOH
Output HIGH Voltage
Note 17
VDDQ/2 – 0.12
VDDQ/2 + 0.12
V
VOL
Output LOW Voltage
Note 18
VDDQ/2 – 0.12
VDDQ/2 + 0.12
V
VOH(LOW)
Output HIGH Voltage
IOH = –0.1 mA, Nominal Impedance
VDDQ – 0.2
VDDQ
V
VOL(LOW)
Output LOW Voltage
IOL = 0.1 mA, Nominal Impedance
VSS
0.2
V
VIH
Input HIGH Voltage
VREF + 0.1
VDDQ + 0.15
V
VIL
Input LOW Voltage
–0.15
VREF – 0.1
V
IX
Input Leakage Current
GND
≤ V
I ≤ VDDQ
–2
2
μA
IOZ
Output Leakage Current
GND
≤ V
I ≤ VDDQ, Output Disabled
–2
2
μA
VREF
Input Reference Voltage[19]
Typical Value = 0.75V
0.68
0.75
0.95
V
IDD
VDD Operating Supply
VDD = Max, IOUT = 0 mA,
f = fmax = 1/tCYC
300 MHz
850
mA
333 MHz
920
mA
375 MHz
1020
mA
ISB1
Automatic Power Down
Current
Max VDD, Both Ports
Deselected, VIN ≥ VIH or
VIN ≤ VIL f = fmax = 1/tCYC,
Inputs Static
300 MHz
250
mA
333 MHz
260
mA
375 MHz
290
mA
AC Input Requirements
Over the operating range[12]
Parameter
Description
Test Conditions
Min
Typ
Max
Unit
VIH
Input HIGH Voltage
VREF + 0.2
VDDQ + 0.24
V
VIL
Input LOW Voltage
–0.24
VREF – 0.2
V
Notes
16. Power up: Is based on a linear ramp from 0V to VDD(min) within 200 ms. During this time VIH < VDD and VDDQ < VDD.
17. Outputs are impedance controlled. IOH = –(VDDQ/2)/(RQ/5) for values of 175Ω < RQ < 350Ω.
18. Outputs are impedance controlled. IOL = (VDDQ/2)/(RQ/5) for values of 175Ω < RQ < 350Ω.
19. VREF (min) = 0.68V or 0.46 VDDQ, whichever is larger, VREF (max) = 0.95V or 0.54 VDDQ, whichever is smaller.
20. The operation current is calculated with 50% read cycle and 50% write cycle.
相关PDF资料
PDF描述
CY7C1157V18-333BZXC 18-Mbit DDR-II+ SRAM 2-Word Burst Architecture (2.0 Cycle Read Latency)
CY7C1157V18-333BZXI 18-Mbit DDR-II+ SRAM 2-Word Burst Architecture (2.0 Cycle Read Latency)
CY7C1157V18-375BZC 18-Mbit DDR-II+ SRAM 2-Word Burst Architecture (2.0 Cycle Read Latency)
CY7C1157V18-375BZI 18-Mbit DDR-II+ SRAM 2-Word Burst Architecture (2.0 Cycle Read Latency)
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