AT89C5130A-M Atmel Corporation, AT89C5130A-M Datasheet - Page 48
AT89C5130A-M
Manufacturer Part Number
AT89C5130A-M
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(188 pages)
2.AT89C5130A-M.pdf
(4 pages)
3.AT89C5130A-M.pdf
(34 pages)
Specifications of AT89C5130A-M
Flash (kbytes)
16 Kbytes
Max. Operating Frequency
48 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)
1024
Self Program Memory
API
Operating Voltage (vcc)
2.7 to 5.5
Timers
4
Isp
UART/USB
Watchdog
Yes
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11.5
11.5.1
48
Hardware Conditions
AT89C5130A/31A-M
High Pin Count Hardware Conditions (PLCC52, QFP64)
It is possible to force the controller to execute the bootloader after a Reset with hardware condi-
tions. Depending on the product type (low pin count or high pin count package), there are two
methods to apply the hardware conditions.
For high pin count packages, the hardware conditons (EA = 1, PSEN = 0) are sampled during
the RESET rising edge to force the on-chip bootloader execution (See
172). In this way the bootloader can be carried out regardless of the user Flash memory content.
It is recommended to pull the PSEN pin down to ground though a 1K resistor to prevent the
PSEN pin from being damaged (see
Figure 11-3. ISP Hardware conditions
As PSEN is an output port in normal operating mode (running user application or bootloader
code) after reset, it is recommended to release PSEN after rising edge of reset signal.
To ensure correct microcontroller startup, the PSEN pin should not be tied to ground during
power-on (see
GND
Description
Copy of the Device ID#3: Name and Revision
1K
GND
VCC
Figure 11-4
/PSEN
RST
EA
Bootloader
below).
VCC
VSS
GND
VCC
XTAL2
XTAL1
ALE
Figure 11-3
Unconnected
C2
Crystal
C1
below).
GND
GND
Default Value
FFh
Figure 27-5 on page
4337K–USB–04/08
Address
61h
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