AT90LS2333-4AI Atmel, AT90LS2333-4AI Datasheet - Page 54

• Manufacturer Part Number: AT90LS2333-4AI
• Description: IC MCU 2K 4MHZ A/D LV IT 32TQFP
• Manufacturer: Atmel
• Series: AVR® 90LSr

Specifications of AT90LS2333-4AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 46. ADC Timing Diagram, First Conversion (Single Conversion Mode)
Table 21. ADC Conversion Time
Figure 47. ADC Timing Diagram, Single Conversion
54
Condition
1st Conversion, Free Run
1st Conversion, Single
Free Run Conversion
Single Conversion
Cycle number
ADC clock
ADSC
Hold strobe
ADIF
ADCH
ADCL
Cycle number
ADC clock
ADEN
ADSC
Hold strobe
ADIF
ADCH
ADCL
AT90S/LS2333 and AT90S/LS4433
1
1
2
Dummy Conversion
2
Sample Cycle Number
3
12
14
14
2
2
4
13
14
5
15
6
Result Ready (cycle
16
7
number)
17
One Conversion
25
25
13
13
18
8
Actual Conversion
19
9
20
10
Total Conversion Time
21
11
22
(cycles)
25
26
13
14
23
12
24
13
25
Total Conversion Time
14
26
MSB of result
LSB of result
Next Conversion
Second
Conversion
MSB of result
LSB of result
1
125 - 500
1
130 - 520
65 - 260
70 - 280
( s)
2
2