AT89LP51ED2 Atmel Corporation, AT89LP51ED2 Datasheet - Page 150
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AT89LP51ED2
Manufacturer Part Number
AT89LP51ED2
Description
Manufacturer
Atmel Corporation
Specifications of AT89LP51ED2
Flash (kbytes)
64 Kbytes
Max. Operating Frequency
20 MHz
Cpu
8051-1C
Max I/o Pins
42
Spi
1
Twi (i2c)
1
Uart
1
Adc Channels
7
Adc Resolution (bits)
10
Adc Speed (ksps)
153.8
Sram (kbytes)
2.25
Eeprom (bytes)
4096
Self Program Memory
API
Operating Voltage (vcc)
2.4 to 5.5
Timers
4
Isp
SPI/OCD/UART
Watchdog
Yes
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Figure 19-11. Format and States in Master Transmitter Mode
150
Successfull
transmission
to a slave
receiver
Next transfer
started with a
repeated start
condition
Not acknowledge
received after the
slave address
Not acknowledge
received after a data
byte
Arbitration lost in slave
address or data byte
Arbitration lost and
addressed as slave
AT89LP51RD2/ED2/ID2 Preliminary
From master to slave
From slave to master
08h
S
SLA
W
MT
A or A
DATA
18h
20h
38h
68h
A
A
A
78h
Other master
Other master
n
continues
continues
P
B0h
DATA
A
Any number of data bytes
and their associated acknowledge bits
This number (contained in TWSR) corresponds
to a defined state of the Two-wire Serial Bus. The
prescaler bits are zero or masked to zero
A or A
28h
30h
38h
To corresponding
states in slave mode
A
A
Other master
10h
continues
P
R
P
S
SLA
W
R
3714A–MICRO–7/11
MR
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