AT90S2333-8PC Atmel, AT90S2333-8PC Datasheet - Page 65
![IC MCU 2K FLSH 8MHZ A/D 28DIP](/photos/7/21/72189/453-28-dip_sml.jpg)
AT90S2333-8PC
Manufacturer Part Number
AT90S2333-8PC
Description
IC MCU 2K FLSH 8MHZ A/D 28DIP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90LS2333-4AC.pdf
(103 pages)
Specifications of AT90S2333-8PC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Table 25. DDCn Effects on Port C Pins
Note:
Port C Schematics
Note that all port pins are synchronized. The synchronization latch is however, not shown in the figure.
Figure 56. Port C Schematic Diagrams (Pins PC0 - PC5)
Port D
Port D is an 8 bit bi-directional I/O port with internal pull-up resistors.
Three I/O memory address locations are allocated for Port D, one each for the Data Register - PORTD, $12($32), Data
Direction Register - DDRD, $11($31) and the Port D Input Pins - PIND, $10($30). The Port D Input Pins address is read
only, while the Data Register and the Data Direction Register are read/write.
The Port D output buffers can sink 20 mA. As inputs, Port D pins that are externally pulled low will source current if the pull-
up resistors are activated.
Some Port D pins have alternate functions as shown in the following table:
DDCn
0
0
1
1
n: 5…0, pin number
PORTCn
0
1
0
1
PCn
PWRDN: POWER DOWN MODE
MOS
PULL-
UP
Output
Output
Input
Input
WP:
WD:
RL:
RP:
RD:
I/O
n:
WRITE PORTC
WRITE DDRC
READ PORTC LATCH
READ PORTC PIN
READ DDRC
0 - 5
PWRDN
Pull Up
Yes
No
No
No
AT90S/LS2333 and AT90S/LS4433
Comment
Tri-state (Hi-Z)
PCn will source current if ext. pulled low.
Push-Pull Zero Output
Push-Pull One Output
RL
RP
TO ADC MUX
Q
Q
PORTCn
RESET
RESET
DDCn
RD
WD
WP
C
C
D
D
ADCn
65
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