AT90S2313-4SI Atmel, AT90S2313-4SI Datasheet - Page 64

• Manufacturer Part Number: AT90S2313-4SI
• Description: MCU 2K FLASH 4MHZ 20-SOIC
• Manufacturer: Atmel
• Series: AVR® 90Sr

Specifications of AT90S2313-4SI

• 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: 15
• 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
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 1 x 8 bit
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Lead Free Status / Rohs Status: No

64
AT90S2313
The loaded command and address are retained in the device during programming. For
efficient programming, the following should be considered:
•
•
•
These considerations also apply to EEPROM programming and Flash, EEPROM and
signature byte reading.
Figure 50. Programming the Flash
Figure 51. Programming the Flash (Continued)
RDY/BSY
RDY/BSY
RESET
XTAL1
The command needs only be loaded once when writing or reading multiple memory
locations.
Address high byte needs only be loaded before programming a new 256-word page
in the Flash.
Skip writing the data value $FF; that is, the contents of the entire Flash and
EEPROM after a Chip Erase.
RESET
DATA
XTAL1
DATA
XA1
XA0
WR
XA1
XA0
OE
WR
BS
OE
BS
12V
+12V
DATA HIGH
$10
ADDR. HIGH
ADDR. LOW
DATA LOW
0839I–AVR–06/02