AT89C5131A-RDTIM Atmel, AT89C5131A-RDTIM Datasheet - Page 9
AT89C5131A-RDTIM
Manufacturer Part Number
AT89C5131A-RDTIM
Description
C5131A 32K FLASH USB VQFP64 IND, 5V
Manufacturer
Atmel
Datasheet
1.AT89C5131A-RDTIM.pdf
(176 pages)
- Current page: 9 of 176
- Download datasheet (3Mb)
4136C–USB–04/05
Table 8. Ports Signal Description
Table 9. Clock Signal Description
Table 10. USB Signal Description
Signal
Signal
Signal
Name
Name
XTAL1
XTAL2
P0[7:0]
P1[7:0]
P2[7:0]
P3[7:0]
P4[1:0]
Name
VREF
PLLF
D+
D-
Type
Type
Type
I/O
I/O
O
O
I/O
I/O
I/O
I/O
I/O
I
I
Description
Input to the on-chip inverting oscillator amplifier
To use the internal oscillator, a crystal/resonator circuit is connected to this
pin. If an external oscillator is used, its output is connected to this pin.
Output of the on-chip inverting oscillator amplifier
To use the internal oscillator, a crystal/resonator circuit is connected to this
pin. If an external oscillator is used, leave XTAL2 unconnected.
PLL Low Pass Filter input
Receives the RC network of the PLL low pass filter.
Description
USB Data + signal
USB Data - signal
USB Reference Voltage
Connect this pin to D+ using a 1.5 kΩ resistor to use the Detach function.
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
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.
Port 3
P3 is an 8-bit bidirectional I/O port with internal pull-ups.
Port 4
P4 is an 2-bit open port.
SS
.
DD
or
AT89C5131
Alternate Function
CEX[4:0]
LED[3:0]
KIN[7:0]
AD[7:0]
A[15:8]
T2EX
INT0
INT1
RxD
SCL
SDA
TxD
ECI
WR
RD
T2
T0
T1
Alternate
Alternate
Function
Function
-
-
-
-
-
-
9
Related parts for AT89C5131A-RDTIM
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 32QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 52PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU 32KB 3-3.6V USB 48-VQFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 32K FLASH USB 28-SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 64VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 32K FLASH USB 64-VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 32K FLASH USB 28-SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU 8051 32K FLASH USB 52-PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 48QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 64VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 32QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K USB 52PLCC
Manufacturer:
Atmel
Datasheet: