AT83C5134 Atmel Corporation, AT83C5134 Datasheet - Page 8

• Manufacturer Part Number: AT83C5134
• Manufacturer: Atmel Corporation

Specifications of AT83C5134

• Max. Operating Frequency: 32 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 512
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 4
• Mask Rom (kbytes): 8
• Watchdog: Yes

8
AT83C5134/35/36
Table 4-6.
Table 4-7.
Table 4-8.
Signal
P0[7:0]
P1[7:0]
P2[7:0]
Signal
Name
MISO
MOSI
Signal
Name
Name
SCK
SCL
SDA
SS
Type
Type
I/O
I/O
I/O
I/O
Type
I/O
I/O
I/O
I/O
I/O
TWI Signal Description
SPI Signal Description
Ports Signal Description
Description
SS: SPI Slave Select . This I/O is 5 Volt tolerant
MISO: SPI Master Input Slave Output line
When SPI is in master mode, MISO receives data from the slave peripheral. When
SPI is in slave mode, MISO outputs data to the master controller. This I/O is 5 Volt
tolerant
SCK: SPI Serial Clock
SCK outputs clock to the slave peripheral or receive clock from the master.
This I/O is 5 Volt tolerant.
MOSI: SPI Master Output Slave Input line
When SPI is in master mode, MOSI outputs data to the slave peripheral. When
SPI is in slave mode, MOSI receives data from the master controller.
This I/O is 5 Volt tolerant.
Description
SCL: TWI Serial Clock
SCL output the serial clock to slave peripherals.
SCL input the serial clock from master.
SDA: TWI Serial Data
SCL is the bidirectional TWI data line.
Description
Port 0
P0 is an 8-bit open-drain bidirectional I/O port. Port 0 pins that
have 1s written to them float and can be used as high
impedance inputs. To avoid any parasitic current consumption,
Floating P0 inputs must be pulled to V
Port 1
P1 is an 8-bit bidirectional I/O port with internal pull-ups.
Port 2
P2 is an 8-bit bidirectional I/O port with internal pull-ups.
DD
or V
SS
.
Alternate Function
CEX[4:0]
KIN[7:0]
AD[7:0]
A[15:8]
T2EX
ECI
T2
7683C–USB–11/07
Alternate
Alternate
Function
Function
P4.0
P4.1
P1.1
P1.5
P1.6
P1.7