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參數(shù)資料
| 型號： | WEDF1M32B-70G2TC5A |
| 元件分類： | PROM |
| 英文描述： | 1M X 32 FLASH 5V PROM MODULE, 70 ns, CQFP68 |
| 封裝： | CERAMIC, LQFP-68 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 191K |
| 代理商： | WEDF1M32B-70G2TC5A |
3
White Electronic Designs Corporation Phoenix, AZ (602) 437-1520
WEDF1M32B-XXX5
FIG. 3
AC TEST CIRCUIT
NOTES:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75
.
VZ is typically the midpoint of VOH and VOL.
IOL & IOH are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
AC TEST CONDITIONS
I
Current Source
D.U.T.
C
= 50 pf
eff
I
OL
V
≈ 1.5V
(Bipolar Supply)
Z
Current Source
OH
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min
Max
Unit
Supply Voltage
VCC
4.5
5.5
V
Input High Voltage
VIH
2.0
VCC + 0.5
V
Input Low Voltage
VIL
-0.5
+0.8
V
Operating Temp. (Mil.)
TA
-55
+125
°C
Parameter
Typ
Unit
Input Pulse Levels
VIL = 0, VIH = 3.0
V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
Output Timing Reference Level
1.5
V
CAPACITANCE
(TA = +25
°C)
Parameter
Symbol
Conditions
Max
Unit
OE capacitance
COE
VIN = 0 V, f = 1.0 MHz
50
pF
WE1-4 capacitance
CWE
VIN = 0 V, f = 1.0 MHz
20
pF
CS1-4 capacitance
CCS
VIN = 0 V, f = 1.0 MHz
20
pF
Data I/O capacitance
CI/O
VI/O = 0 V, f = 1.0 MHz
20
pF
Address input capacitance
CAD
VIN = 0 V, f = 1.0 MHz
50
pF
This parameter is guaranteed by design but not tested.
ABSOLUTE MAXIMUM RATINGS
NOTES:
1. Minimum DC voltage is -0.5V on input/output pins. During transitions, this
level may undershoot to -2.0V for periods <20ns. Maximum DC voltage on
input/output pins is VCC + 0.5V which, during transitions, may overshoot to
VCC + 2.0V for periods <20ns.
2. Minimum DC input voltage on pins A9, OE, and RESET is -0.5V. During
voltage transitions, A9, OE, and RESET may undershoot Vss to -2.0V for
periods of up to 20ns. See Figure 6. Maximum DC input voltage on pin A9 is
+12.5V which may overshoot to +13.5V for periods up to 20ns.
3. Output shorted for no more than one second. No more than one output
shorted at a time.
Stresses above 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 above those indicated in
the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Parameter
Unit
Voltage on Any Pin with Respect to
-0.5 to +7.0
V
GND – VCC and VPP)
Voltage with Respect to GND –
-2.0 to +12.5
V
A9, OE, and RESET (2)
Voltage with Respect to GND –
-2.0 to +7.0
V
All other pins (1)
Output Short Circuit Current
200
mA
DATA RETENTION
Parameter
Test Conditions
Min
Unit
Minimum Pattern Data
150
°C
10
Years
Retention Time
125
°C
20
Years
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