AT90S2313-4SI View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'AT90S2313-4SI' PDF : 92 Pages View PDF
External Clock Drive
Waveforms
AT90S2313
Notes:
1. “Max” means the highest value where the pin is guaranteed to be read as low.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. Although each I/O port can sink more than the test conditions (20 mA at VCC = 5V,
10 mA at VCC = 3V) under steady state conditions (non-transient), the following must
be observed:
1] The sum of all IOL, for all ports, should not exceed 200 mA
2] The sum of all IIOL, for port D0 - D5 and XTAL2 should not exceed 100 mA.
3] The sum of all IOL, for ports B0 - B7 and D6 should not exceed 100 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are
not guaranteed to sink current greater than the listed test condition.
4. Although each I/O port can source more than the test conditions (3 mA at VCC = 5V,
1.5 mA at VCC = 3V) under steady state conditions (non-transient), the following must
be observed:
1] The sum of all IOH, for all ports, should not exceed 200 mA
2] The sum of all IOH, for port D0 - D5 and XTAL2 should not exceed 100 mA.
3] The sum of all IOH, for ports B0 - B7 and D6 should not exceed 100 mA.
If IOH exceeds the test condition, VOH may exceed the related specification. Pins are
not guaranteed to source current greater than the listed test condition.
5. Minimum VCC for Power-down is 2V.
Figure 56. External Clock
VIH1
VIL1
External Clock Drive
Symbol
1/tCLCL
tCLCL
tCHCX
tCLCX
tCLCH
tCHCL
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
VCC = 2.7V to 6.0V
Min
Max
0
4
250.0
100.0
100.0
1.6
1.6
VCC = 4.0V to 6.0V
Min
Max
0
10.0
100.0
40.0
40.0
0.5
0.5
Units
MHz
ns
ns
ns
µs
µs
73
0839I–AVR–06/02
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