ATTINY88-15MZ Atmel, ATTINY88-15MZ Datasheet - Page 202

• Manufacturer Part Number: ATTINY88-15MZ
• Description: IC MCU AVR 8B 8KB FLASH 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY88-15MZ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 28
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.7.11
20.7.12
202
ATtiny88 Automotive
Programming the Lock Bits
Reading the Fuse and Lock Bits
Figure 20-5. Programming the FUSES Waveforms
The algorithm for programming the Lock bits is as follows (refer to
page 197
The Lock bits can only be cleared by executing Chip Erase.
The algorithm for reading the Fuse and Lock bits is as follows (refer to
on page 197
RESET +12V
1. A: Load Command “0010 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs the Lock bit. If LB mode 3 is programmed
3. Give WR a negative pulse and wait for RDY/BSY to go high.
1. A: Load Command “0000 0100”.
2. Set OE to “0”, BS2 to “0” and BS1 to “0”. The status of the Fuse Low bits can now be
3. Set OE to “0”, BS2 to “1” and BS1 to “1”. The status of the Fuse High bits can now be
4. Set OE to “0”, BS2 to “1”, and BS1 to “0”. The status of the Fuse Extended bits can now
5. Set OE to “0”, BS2 to “0” and BS1 to “1”. The status of the Lock bits can now be read at
6. Set OE to “1”.
RDY/BSY
PAGEL
DATA
CLKI
BS2
XA1
XA0
BS1
WR
(LB1 and LB2 is programmed), it is not possible to program the Lock Bits by any Exter-
nal Programming mode.
read at DATA (“0” means programmed).
read at DATA (“0” means programmed).
be read at DATA (“0” means programmed).
DATA (“0” means programmed).
OE
for details on Command and Data loading):
for details on Command loading):
0x40
A
DATA
C
Write Fuse Low byte
XX
0x40
A
DATA
C
Write Fuse high byte
XX
“Programming the Flash” on
0x40
A
“Programming the Flash”
DATA
C
Write Extended Fuse byte
XX
9157B–AVR–01/10