ATtiny2313A Atmel Corporation, ATtiny2313A Datasheet - Page 197

• Manufacturer Part Number: ATtiny2313A
• Manufacturer: Atmel Corporation

Specifications of ATtiny2313A

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

Table 21-8.
Note:
21.4
8246B–AVR–09/11
Instruction
Write EEPROM Memory
Page (page access)
Read Lock bits
Write Lock bits
Read Signature Byte
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
Read Fuse bits
Read Fuse High bits
Read Extended Fuse Bits
Read Calibration Byte
Poll RDY/BSY
a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x = don’t care
Programming Time for Flash and EEPROM
Serial Programming Instruction Set
If the LSB of RDY/BSY data byte out is ‘1’, a programming operation is still pending. Wait until
this bit returns ‘0’ before the next instruction is carried out.
Within the same page, the low data byte must be loaded prior to the high data byte.
After data is loaded to the page buffer, program the EEPROM page.
Flash and EEPROM wait times are listed in
Table 21-9.
Symbol
t
t
t
t
WD_FLASH
WD_EEPROM
WD_ERASE
WD_FUSE
1100 0010
0101 1000
1010 1100
0011 0000
1010 1100
1010 1100
1010 1100
0101 0000
0101 1000
0101 0000
0011 1000
1111 0000
Byte 1
Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
00xx xxxx
0000 0000
111x xxxx
000x xxxx
1010 0000
1010 1000
1010 0100
0000 0000
0000 1000
0000 1000
000x xxxx
0000 0000
Byte 2
Instruction Format
xbbb bb00
xxxx xxxx
xxxx xxxx
xxxx xxbb
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
0000 000b
xxxx xxxx
Byte 3
Table
xxxx xxxx
xxoo oooo
11ii iiii
oooo oooo
iiii iiii
iiii iiii
xxxx xxxi
oooo oooo
oooo oooo
oooo oooo
oooo oooo
xxxx xxxo
Byte4
Minimum Wait Delay
21-9.
4.5 ms
4.0 ms
9.0 ms
4.5 ms
Operation
Write EEPROM page at address b.
Read Lock bits. “0” = programmed, “1”
= unprogrammed. See
page 178
Write Lock bits. Set bits = “0” to
program Lock bits. See
page 178
Read Signature Byte o at address b.
Set bits = “0” to program, “1” to
unprogram.
Set bits = “0” to program, “1” to
unprogram.
Set bits = “0” to program, “1” to
unprogram.
Read Fuse bits. “0” = programmed, “1”
= unprogrammed.
Read Fuse High bits. “0” = pro-
grammed, “1” = unprogrammed.
Read Extended Fuse bits. “0” = pro-
grammed, “1” = unprogrammed.
Read Calibration Byte at address b.
If o = “1”, a programming operation is
still busy. Wait until this bit returns to
“0” before applying another command.
ATtiny2313A/4313
for details.
for details.
Table 20-1 on
Table 20-1 on
197