WEDPNF8M722V-1212BC 查看數據表（PDF） - White Electronic Designs Corporation
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WEDPNF8M722V-1212BC
White Electronic Designs Corporation
WEDPNF8M722V-1212BC Datasheet PDF : 43 Pages
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White Electronic Designs WEDPNF8M722V-XBX
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage Range (VCC)
Signal Voltage Range
Operating Temperature TA (Mil)
Operating Temperature TA (Ind)
Storage Temperature, Plastic
Flash Endurance (write/erase cycles)
-0.5 to +4.0
-0.5 to Vcc +0.5
-55 to +125
-40 to +85
-65 to +150
1,000,000 min.
Unit
V
V
°C
°C
°C
cycles
NOTE:
Stress greater than those listed under "Absolute Maximum Ratings" may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions greater than those
indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may
affect reliability.
SDRAM CAPACITANCE (NOTE 2)
Parameter
Input Capacitance: CLK
SDRAM Addresses, BA0-1 Input Capacitance
Input Capacitance: All other input-only pins
Input/Output Capacitance: I/Os
Flash Address Capacitance
Flash Data Capacitance
FOE, FWE, RST
Symbol Max Unit
CI1
8
pF
CA
32
pF
CI2
8
pF
CIO
12
pF
FA
15
pF
FD
10
pF
20
pF
FLASH DATA RETENTION
Parameter
Minimum Pattern Data
Retention Time
Test Conditions Min
150°C
10
125°C
20
Unit
Years
Years
DC ELECTRICAL CHARACTERISTICS AND OPERATING CONDITIONS (NOTES 1, 3)
(VCC = +3.3V ±0.3V; TA = -55°C TO +125°C)
Parameter/Condition
Supply Voltage
Input High Voltage: Logic 1; All inputs (4)
Input Low Voltage: Logic 0; All inputs (4)
SDRAM
Input Leakage Current: Any input 0V - VIN - VCC
(All other pins not under test = 0V)
SDRAM Input Leakage Address Current
(All other pins not under test = 0V)
SDRAM Output Leakage Current: I/Os are disabled; 0V - VOUT - VCC
SDRAM Output High Voltage (IOUT = -4mA)
SDRAM Output Low Voltage (IOUT = 4mA)
Flash
Flash Input Leakage Current (VCC = 3.6, VIN = GND or VCC)
Flash Output Leakage Current (VCC = 3.6, VIN = GND or VCC)
Flash Output High Voltage (IOH = -2.0 mA, VCC = 3.0)
Flash Output Low Voltage (IOL = 5.8 mA, VCC = 3.0)
Flash Low VCC Lock-Out Voltage (5)
Symbol
VCC
VIH
VIL
II
II
IOZ
VOH
VOL
ILI
ILOx8
VOH1
VOL
VLKO
Min
3
0.7 x Vcc
-0.3
-5
-25
-5
2.4
–
0.85 X VCC
2.3
Max
3.6
VCC + 0.3
0.8
5
25
5
–
0.4
10
10
0.45
2.5
Units
V
V
V
µA
µA
µA
V
V
µA
µA
V
V
V
NOTES:
1. All voltages referenced to VSS.
2. This parameter is not tested but guaranteed by design. f = 1 MHz, TA = 25°C.
3. An initial pause of 100ms is required after power-up, followed by two AUTO REFRESH commands, before proper device operation is ensured. (VCC must be
powered up simultaneously.) The two AUTO REFRESH command wake-ups should be repeated any time the tREF refresh requirement is exceeded.
4. VIH overshoot: VIH (MAX) = VCC + 2V for a pulse width ≤ 3ns, and the pulse width cannot be greater than one third of the cycle rate. VIL undershoot: VIL
(MIN) = -2V for a pulse width ≤ 3ns.
5. Guaranteed by design, but not tested.
White Electronic Designs Corporation • Phoenix AZ • (602) 437-1520
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