AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 6

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

6
AT89C5132
Table 4. Audio Interface Signal Description
Table 5. USB Controller Signal Description
Table 6. MutiMediaCard Interface Signal Description
Signal
Signal
Signal
Signal
MCMD
Name
Name
DOUT
Name
Name
MCLK
MDAT
DCLK
DSEL
SCLK
D+
T0
T1
D-
Type
Type
Type
Type
I/O
I/O
I/O
I/O
O
O
O
O
O
I
I
Description
Timer 0 External Clock Input
When timer 0 operates as a counter, a falling edge on the T0 pin increments
the count.
Timer 1 External Clock Input
When timer 1 operates as a counter, a falling edge on the T1 pin increments
the count.
Description
DAC Data Bit Clock
DAC Audio Data
DAC Channel Select Signal
DSEL is the sample rate clock output.
DAC System Clock
SCLK is the oversampling clock synchronized to the digital audio data (DOUT)
and the channel selection signal (DSEL).
Description
USB Positive Data Upstream Port
This pin requires an external 1.5 KΩ pull-up to V
USB Negative Data Upstream Port
Description
MMC Clock output
Data or command clock transfer.
MMC Command line
Bidirectional command channel used for card initialization and data transfer
commands. To avoid any parasitic current consumption, unused MCMD input
must be polarized to V
MMC Data line
Bidirectional data channel. To avoid any parasitic current consumption, unused
MDAT input must be polarized to V
DD
or V
SS
.
DD
or V
SS
.
DD
for full speed operation.
4173ES–USB–09/07
Alternate
Alternate
Alternate
Alternate
Function
Function
Function
Function
P3.4
P3.5
-
-
-
-
-
-
-
-
-