AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 53
AT89C5122D-PSTUM
Manufacturer Part Number
AT89C5122D-PSTUM
Description
IC 8051 MCU FLASH 32K 64QFN
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-PSTUM
Core Processor
8051
Core Size
8-Bit
Speed
48MHz
Connectivity
SmartCard, SPI, UART/USART, USB
Peripherals
LED, POR, WDT
Number Of I /o
46
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFN
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Port 3
4202F–SCR–07/2008
Port
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
Alternate Functions
Signal
RxD
TxD
INT0
INT1
T0
T1
WR
RD
Description
Receiver data input (asynchronous) or data input/output
(synchronous) of the serial interface
Transmitter data output (asynchronous) or clock output
(synchronous) of the serial interface
External interrupt 0 input/timer 0 gate control input
External interrupt 1input/timer 1 gate control input
Timer 0 counter input
Timer 1 counter input
External Data Memory write strobe; latches the data byte
from port 0 into the external data memory
External Data Memory read strobe; Enables the external
data memory. Port 3 can drive CMOS inputs without external
pull-ups
Port 3 has the following functions:
Port 3 has the following configurations:
Table 32. Port 3 Description
–
–
–
–
Default function: Port 3 is an 8-bit I/O port.
Alternate functions: see table below
Default configuration: Pseudo bi-directional “Port51” digital input/output with
internal pull-ups.
Alternate configurations: See Table 32.
Configurations
AT83R5122, AT8xC5122/23
Push-pull
Push-pull
Push-pull
Push-pull
Mode 1
KB_OUT
KB_OUT
KB_OUT
KB_OUT
Mode 2
Input WPU
Input WPU
Input WPU
Input WPU
Mode 3
Mode 4
LED1
LED2
LED3
LED0
53
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