AT90LS2333-4AI Atmel, AT90LS2333-4AI Datasheet - Page 82

• 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

Serial Programming Characteristics
Figure 68. Serial Programming Timing
Table 36. Serial Programming Characteristics
T
Table 37. Minimum wait delay after the Chip Erase instruction
Table 38. Minimum wait delay after writing a Flash or EEPROM location
82
A
Symbol
1/t
t
1/t
t
t
t
t
t
t
Symbol
t
Symbol
t
CLCL
CLCL
SHSL
SLSH
OVSH
SHOX
SLIV
WD_ERASE
WD_PROG
= -40 C to 85 C, V
CLCL
CLCL
AT90S/LS2333 and AT90S/LS4433
Parameter
Oscillator Frequency (V
Oscillator Period (V
Oscillator Frequency (V
Oscillator Period (V
SCK Pulse Width High
SCK Pulse Width Low
MOSI Setup to SCK High
MOSI Hold after SCK High
SCK Low to MISO Valid
3.2V
18ms
3.2V
9ms
CC
= 2.7 - 6.0V (Unless otherwise noted)
CC
CC
= 2.7 - 6.0V)
= 4.0 - 6.0V)
CC
CC
= 2.7 - 6.0V)
= 4.0 - 6.0V)
3.6V
14ms
3.6V
7ms
MOSI
MISO
SCK
t
OVSH
t
SHSL
2 t
2 t
2 t
t
Min
250
125
CLCL
t
10
CLCL
CLCL
SHOX
CLCL
0
0
4.0V
12ms
4.0V
6ms
t
SLSH
t
SLIV
Typ
16
5.0V
8ms
5.0V
4ms
Max
32
4
8
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns