AT90S1200-4YI Atmel, AT90S1200-4YI Datasheet - Page 51

• Manufacturer Part Number: AT90S1200-4YI
• Description: IC MCU 1K FLSH 4MHZ LV IT 20SSOP
• Manufacturer: Atmel
• Series: AVR® 90Sr

Specifications of AT90S1200-4YI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI
• Peripherals: POR, WDT
• Number Of I /o: 15
• Program Memory Size: 1KB (512 x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Ram Size: -
• Data Converters: -

Typical
Characteristics
0838H–AVR–03/02
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
switching 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 Power-down mode with Watchdog
Timer enabled and Power-down mode with Watchdog Timer disabled represents the dif-
ferential current drawn by the Watchdog Timer.
Figure 38. Active Supply Current vs. Frequency
L
• V
CC
18
16
14
12
10
8
6
4
2
0
• f where C
0
1
2
L
3
= load capacitance, V
ACTIVE SUPPLY CURRENT vs. FREQUENCY
4
5
6
Frequency (MHz)
T = 25˚C
7
A
8
CC
9
= operating voltage and f = average
10
11
12
V
cc
= 2.7V
13
AT90S1200
14
V
cc
= 3.0V
15
V
cc
= 3.3V
16
V
V
V
V
V
V
cc
cc
cc
cc
cc
cc
= 6V
= 5.5V
= 5V
= 4V
= 3.6V
= 4.5V
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