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24LC320-P Datasheet PDF : 12 Pages
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25LC320
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
CS
SO
SI
SCK
WP
VSS
VCC
HOLD
NC
Function
Chip Select Input
Serial Data Output
Serial Data Input
Serial Clock Input
Write Protect Pin
Ground
Supply Voltage
Hold Input
No Connect
FIGURE 1-1: AC TEST CIRCUIT
Vcc
2.25 K
SO
1.8 K 100 pF
1.2 AC Test Conditions
AC Waveform:
VLO = 0.2V
VHI = Vcc - 0.2V
VHI = 4.0V
(Note 1)
(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
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
Low level input voltage
VIL1
-0.3
0.8
V
VIL2
-0.3
0.3 VCC V
Low level output voltage VOL
—
0.4
V
High level output voltage VOH
Input leakage current
ILI
Output leakage current
ILO
VCC-0.5
-10
-10
—
V
10
µA
10
µA
Internal Capacitance
(all inputs and outputs)
CINT
—
7
pF
Operating Current
ICC write
—
—
5
mA
3
mA
Standby Current
ICC read
ICCS
—
1
mA
—
500 µA
—
5
µA
2
µA
Note: This parameter is periodically sampled and not 100% tested.
VCC< 2.7V
VCC ≥ 2.7V
VCC< 2.7V
IOL=2.1 mA
IOH=-400 µA
CS=VIH, VIN=GND to VCC
CS=VIH, VOUT=GND to VCC
Tamb=25°C, FCLK= 1.0 MHz,
VCC=5.5V (Note)
VCC=5.5V; SO=Open
VCC=2.5V; SO=Open
VCC=5.5V; SO=Open, FCLK=3.0 MHz
VCC=2.5V; SO=Open, FCLK=2.0 MHz
CS=VCC=5.5V; VIN=Gnd or VCC
CS=VCC=2.5V; VIN=Gnd or VCC
DS21158B-page 2
Preliminary
© 1996 Microchip Technology Inc.
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