參數(shù)資料
型號: ATMEGA103-6AI
廠商: Atmel
文件頁數(shù): 128/141頁
文件大?。?/td> 0K
描述: IC MCU 128K 6MHZ A/D IT 64TQFP
產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
標(biāo)準(zhǔn)包裝: 90
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 6MHz
連通性: SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 128KB(64K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 4K x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-TQFP
包裝: 托盤
配用: ATSTK501-ND - ADAPTER KIT FOR 64PIN AVR MCU
87
ATmega103(L)
0945I–AVR–02/07
pins are tri-stated when a reset condition becomes active, even if the clock is not
running.
Note:
n: 7,6...0, pin number
Port A Schematics
Note that all port pins are synchronized. The synchronization latch is, however, not
shown in the figure.
Figure 53. Port A Schematic Diagrams (Pins PA0 - PA7)
Port B
Port B is an 8-bit bi-directional I/O port with internal pull-ups.
Three I/O memory address locations are allocated for Port B, one each for the Data
Register – PORTB, $18($38), Data Direction Register – DDRB, $17($37) and the Port B
Input Pins – PINB, $16($36). The Port B Input Pins address is read-only, while the Data
Register and the Data Direction Register are read/write.
All port pins have individually selectable pull-up resistors. The Port B output buffers can
sink 20 mA and thus drive LED displays directly. When pins PB0 to PB7 are used as
Table 28. DDAn Effects on Port A Pins
DDAn
PORTAn
I/O
Pull-up
Comment
0
Input
No
Tri-state (high-Z)
0
1
Input
Yes
PAn will source current if ext. pulled low.
1
0
Output
No
Push-pull Zero Output
1
Output
No
Push-pull One Output
DA
T
A
BUS
D
Q
RESET
C
WD
WP
RD
RP
MOS
PULL-
UP
PAn
R
WP:
WD:
RL:
RP:
RD:
SRE:
A:
D:
W:
R:
n:
WRITE PORTA
WRITE DDRA
READ PORTA LATCH
READ PORTA PIN
READ DDRA
EXT. SRAM ENABLE
ADDRESS
DATA
WRITE
READ
0-7
DDAn
PORTAn
SRE
R
Dn
W
An
RL
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