at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 269

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

23.3
23.3.1
Table 23-1.
23.3.2
23.3.3
7734M–AVR–03/10
Factory
Calibration
User
Calibration
4. Although each I/O port can source more than the test conditions (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady state conditions
5. Minimum V
6. The Analog Comparator Propogation Delay equals 1 comparator clock plus 30 nS.
Clock Drive Characteristics
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
External Clock Drive
(non-transient), the following must be observed:
SO20 and TQFN Package:
1] The sum of all IOH, for all ports, should not exceed 400 mA.
2] The sum of all IOH, for ports B6 - B7, D0 - D3, E0 should not exceed 150 mA.
3] The sum of all IOH, for ports B0 - B1, D4, E1 - E2 should not exceed 150 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.
tor clock definition.
Calibration Accuracy of Internal RC Oscillator
CC
V
IL1
for Power-down is 2.5V.
Figure 23-1.
Table 23-2.
V
Symbol
1/t
t
t
CLCL
CHCX
IH1
CLCL
7.6 - 8.4 MHz
Frequency
8.0 MHz
External Clock Drive Waveforms
External Clock Drive
Parameter
Oscillator Frequency
Clock Period
High Time
2.7V - 5.5V
V
3V
CC
Min.
83
30
0
V
CC
=2.7-5.5V
-40⋅C +105 or 125⋅C
See “Analog Comparator” on page 194.
Temperature
Max.
12
25°C
Min.
62
20
0
V
CC
=4.5-5.5V
AT90PWM81
Calibration Accuracy
Max.
16
±1%
±5%
for compara-
Units
MHz
ns
ns
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