AT90S8535-8AI Atmel, AT90S8535-8AI Datasheet - Page 107

• Manufacturer Part Number: AT90S8535-8AI
• Description: IC MCU 8K 8MHZ A/D IT 44TQFP
• Manufacturer: Atmel
• Series: AVR® 90Sr

Specifications of AT90S8535-8AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical
Characteristics
1041H–11/01
The following charts show typical behavior. These figures are not tested during manu-
facturing. All current consumption measurements are performed with all I/O pins
configured as inputs and with internal pull-ups enabled. A sine wave generator with rail-
to-rail output is used as clock source.
The power consumption in Power-down mode is independent of clock selection.
The current consumption is a function of several factors such as: operating voltage,
operating frequency, loading of I/O pins, switching rate of I/O pins, code executed and
ambient temperature. The dominating factors are operating voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as
C
ing frequency of I/O pin.
The parts are characterized at frequencies higher than test limits. Parts are not guaran-
teed to function properly at frequencies higher than the ordering code indicates.
The difference between current consumption in with Watchdog Timer enabled and
Power-down mode with Watchdog Timer disabled represents the differential current
drawn by the Watchdog Timer.
Figure 75. Active Supply Current vs. Frequency
L
•V
CC
•f where C
40
35
30
25
20
15
10
5
0
0
1
L
2
= load capacitance, V
3
ACTIVE SUPPLY CURRENT vs. FREQUENCY
4
5
6
Frequency (MHz)
T = 25˚C
A
CC
7
= operating voltage and f = average switch-
8
9
10
11
AT90S/LS8535
V
V
cc
cc
= 3.0V
= 2.7V
12
V
cc
= 3.3V
13
V
cc
= 3.6V
14
V
V
cc
cc
= 4.5V
= 4V
15
V
V
V
cc
cc
cc
= 6V
= 5.5V
= 5V
107