WS1M8-17CCA中文资料
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White Electronic Designs Corporation • (602) 437-1520 • www.wedc.comWhite Electronic DesignsWS1M8-XXX
July 2004Rev. 5
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.2x512Kx8 DUALITHIC™ SRAM
FEATURES
Access Times 17, 20, 25, 35, 45, 55ns
Revolutionary, Center Power/Ground Pinout
Packaging:
• 32 pin, Her met ic Ceramic DIP (Package 300)
• 36 lead Ceramic SOJ (Package 100)
• 36 lead Ceramic Flatpack (Package 226)
36 CSOJ
36 FLATPACK
TOP VIEW
123456789101112131415161718363534333231302928272625242322212019A0A1A2A3A4CS1#I/O0I/O1VCCGNDI/O2I/O3WE#A5A6A7A8A9NCA18A17A16A15OE#I/O7I/O6GNDVCCI/O5I/O4A14A13A12A11A10CS2#
Block Diagram
512K x 8512K x 8A0-18OE#WE#
CS1#CS2#I/O0-7
(1)(1)PIN CONFIGURATION FOR WS1M8-XDJX
AND WS1M8-XFX
Pin Description
A0-18Address Inputs
I/O0-7Data Input/Output
CS1-2#Chip Selects
OE#Output Enable
WE#Write Enable
VCC+5.0V Power
GNDGround
NOTE:
1. CS1# and CS2# are used to select the lower and upper 512Kx8 of the device. CS1# and CS2# must not be enabled at the same time. Organized as two banks of 512Kx8
Commercial, Industrial and Military Temperature Ranges
5 Volt Power Supply
Low Power CMOS
TTL Compatible Inputs and Outputs
PIN CONFIGURATION FOR WS1M8-XCX
32 DIP
TOP VIEW
512K x 8512K x 8A0-18WE#
CS1#CS2#I/O0-7
(1)(1)1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1632
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GNDVCCA15
A17
WE#
A13
A8
A9
A11
CS2#
A10
CS1#
I/O7
I/O6
I/O5
I/O4
I/O3
Pin Description
A0-18Address Inputs
I/O0-7Data Input/Output
CS1-2#Chip Selects
WE#Write Enable
VCC+5.0V Power
GNDGround
Block Diagram元器件交易网www.cecb2b.com2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.comWhite Electronic DesignsWS1M8-XXX
July 2004Rev. 5White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.ABSOLUTE MAXIMUM RATINGS
Parameter SymbolMinMaxUnit
Operating TemperatureTA-55 +125°C
Storage TemperatureTSTG-65+150°C
Signal Voltage Relative to GNDVG-0.5VCC +0.5V
Junction TemperatureTJ150°C
Supply VoltageVCC-0.57.0VTRUTH TABLE
CS#OE#WE#ModeData I/O Power
HXXStandbyHigh ZStandby
LLHReadData OutActive
LXLWriteData InActive
LHHOut DisableHigh ZActive
NOTE: OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
RECOMMENDED OPERATING CONDITIONS
ParameterSymbolMinMaxUnit
Supply VoltageVCC4.55.5V
Input High VoltageVIH2.2VCC + 0.3V
Input Low VoltageVIL-0.3+0.8V
Operating Temp. (Mil.)TA-55+125°CCAPACITANCE
TA = +25°C
ParameterSymbolConditionMaxUnit
Input capacitance CINVIN = 0V, f = 1.0MHz20pF
Output capicitanceCOUTVOUT = 0V, f = 1.0MHz20pF
This parameter is guaranteed by design but not tested.
DC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
ParameterSymConditionsMinMaxUnits
Input Leakage CurrentILIVCC = 5.5, VIN = GND to VCC10µA
Output Leakage CurrentILO1CS# = VIH, OE# = VIH, VOUT = GND to VCC10µA
Operating Supply Current ICC1CS# = VIL, OE# = VIH, f = 5MHz, VCC = 5.5180mA
Standby CurrentISB1CS# = VIH, OE# = VIH, f = 5MHz, VCC = 5.540mA
Output Low VoltageVOLIOL = 6mA0.4V
Output High VoltageVOHIOH = -4.0mA2.4V
NOTE: DC test conditions: VIH = VCC -0.3V , VIL = 0.3V
1. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.元器件交易网www.cecb2b.com3
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.comWhite Electronic DesignsWS1M8-XXX
July 2004Rev. 5White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
ICurrent Source
D.U.T.
C = 50 pfeffIOL
V ≈ 1.5V
(Bipolar Supply)Z
Current SourceOHAC TEST CIRCUITAC TEST CONDITIONS
ParameterTypUnit
Input Pulse LevelsVIL = 0, VIH = 3.0V
Input Rise and Fall5ns
Input and Output Reference Level1.5V
Output Timing Reference Level1.5V
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75 Ω.
VZ is typically the midpoint of VOH and VOL.
IOL & IOH are adjusted to simulate a typical resistive load cir cuit.
ATE tester includes jig capacitance.AC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
Parameter
Read CycleSymbol-17-20-25-35-45-55UnitsMinMaxMinMaxMinMaxMinMaxMinMaxMinMax
Read Cycle TimetRC172025354555ns
Address Access TimetAA172025354555ns
Output Hold from Address ChangetOH000000ns
Chip Select Access TimetACS172025354555ns
Output Enable to Output ValidtOE291012252525ns
Chip Select to Output in Low ZtCLZ1222444ns
Output Enable to Output in Low ZtOLZ2000000ns
Chip Disable to Output in High ZtCHZ191012152020ns
Output Disable to Output in High ZtOHZ291012152020ns
1. This parameter is guaranteed by design but not tested.
2. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
AC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
