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25LC320 Datasheet(PDF) 2 Page - Microchip Technology

No. de Pieza. 25LC320
Descripción  32K 2.5V SPI Bus Serial EEPROM
Descarga  12 Pages
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Fabricante  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
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25LC320 Datasheet(HTML) 2 Page - Microchip Technology

 
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25LC320
DS21158B-page 2
Preliminary
© 1996 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
1.1
Maximum Ratings*
VCC........................................................................ 7.0V
All inputs and outputs w.r.t. VSS....... -0.6V to VCC+1.0V
Storage temperature ............................ -65
°C to 150°C
Ambient temperature under bias .......... -65
°C to 125°C
Soldering temperature of leads
(10 seconds) .................................................... +300
°C
ESD protection on all pins..................................... 4 kV
*Notice: Stresses above those listed under ‘Maximum ratings’
may cause permanent damage to the device. This is a stress rat-
ing only and functional operation of the device at those or any
other conditions above those indicated in the operational listings
of this specification is not implied. Exposure to maximum rating
conditions for extended period of time may affect device reliability
TABLE 1-1:
PIN FUNCTION TABLE
Name
Function
CS
Chip Select Input
SO
Serial Data Output
SI
Serial Data Input
SCK
Serial Clock Input
WP
Write Protect Pin
VSS
Ground
VCC
Supply Voltage
HOLD
Hold Input
NC
No Connect
FIGURE 1-1: AC TEST CIRCUIT
1.2
AC Test Conditions
AC Waveform:
VLO = 0.2V
VHI = Vcc - 0.2V
(Note 1)
VHI = 4.0V
(Note 2)
Timing Measurement Reference Level
Input
0.5 VCC
Output
0.5 VCC
Note 1: For VCC
≤ 4.0V
2: For VCC > 4.0V
Vcc
SO
100 pF
1.8 K
2.25 K
TABLE 1-2:
DC CHARACTERISTICS
Applicable over recommended operating ranges shown below unless otherwise noted:
VCC = 2.5V to 5.5V
Commercial (C):
Tamb
= 0
°C to +70°C
Industrial (I):
Tamb
= -40
°C to +85°C
Parameter
Symbol
Min
Max
Units
Test Conditions
High level input voltage
VIH1
2.0
VCC+1
V
VCC
≥ 2.7V
VIH2
0.7 VCC
VCC+1
V
VCC< 2.7V
Low level input voltage
VIL1
-0.3
0.8
V
VCC
≥ 2.7V
VIL2
-0.3
0.3 VCC
VVCC< 2.7V
Low level output voltage
VOL
0.4
V
IOL=2.1 mA
High level output voltage
VOH
VCC-0.5
V
IOH=-400
µA
Input leakage current
ILI
-10
10
µACS=VIH, VIN=GND to VCC
Output leakage current
ILO
-10
10
µACS=VIH, V
OUT=GND to VCC
Internal Capacitance
(all inputs and outputs)
CINT
7
pF
Tamb=25
°C, FCLK= 1.0 MHz,
VCC=5.5V (Note)
Operating Current
ICC write
5
3
mA
mA
VCC=5.5V; SO=Open
VCC=2.5V; SO=Open
ICC read
1
500
mA
µA
VCC=5.5V; SO=Open, FCLK=3.0 MHz
VCC=2.5V; SO=Open, FCLK=2.0 MHz
Standby Current
ICCS
—5
2
µA
µA
CS=VCC=5.5V; VIN=Gnd or VCC
CS=VCC=2.5V; VIN=Gnd or VCC
Note:
This parameter is periodically sampled and not 100% tested.


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