25LC320A-E/MNY Просмотр технического описания (PDF) - Microchip Technology
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25LC320A-E/MNY Datasheet PDF : 30 Pages
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25AA320A/25LC320A
TABLE 1-2: AC CHARACTERISTICS (CONTINUED)
AC CHARACTERISTICS
Industrial (I): TA = -40°C to +85°C
Automotive (E): TA = -40°C to +125°C
VCC = 1.8V to 5.5V
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max. Units
Test Conditions
17
THH HOLD hold time
20
—
ns 4.5V ≤ Vcc ≤ 5.5V
40
—
ns 2.5V ≤ Vcc < 4.5V
80
—
ns 1.8V ≤ Vcc < 2.5V
18
THZ HOLD low to output
High-Z
30
—
ns 4.5V ≤ Vcc ≤ 5.5V(Note 1)
60
—
ns 2.5V ≤ Vcc < 4.5V(Note 1)
160
—
ns 1.8V ≤ Vcc < 2.5V(Note 1)
19
THV HOLD high to output valid
30
60
160
—
ns 4.5V ≤ Vcc ≤ 5.5V
—
ns 2.5V ≤ Vcc < 4.5V
—
ns 1.8V ≤ Vcc < 2.5V
20
TWC Internal write cycle time
—
5
ms (NOTE 2)
21
— Endurance
1,000,000 —
E/W Page Mode, 25°C, VCC = 5.5V (NOTE 3)
Cycles
Note 1: This parameter is periodically sampled and not 100% tested.
2: TWC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is
complete.
3: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model which can be obtained from Microchip’s web site
at www.microchip.com.
TABLE 1-3: AC TEST CONDITIONS
AC Waveform:
VLO = 0.2V
—
VHI = VCC - 0.2V
(Note 1)
VHI = 4.0V
(Note 2)
CL = 50 pF
—
Timing Measurement Reference Level
Input
0.5 VCC
Output
0.5 VCC
Note 1: For VCC ≤ 4.0V
2: For VCC > 4.0V
DS21828F-page 4
© 2009 Microchip Technology Inc.
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