参数资料
型号: SC28L92A1A,518
厂商: NXP Semiconductors
文件页数: 56/73页
文件大小: 0K
描述: IC UART DUAL W/FIFO 44-PLCC
标准包装: 500
系列: IMPACT
特点: 故障启动位检测
通道数: 2,DUART
FIFO's: 16 字节
电源电压: 3.3V,5V
带自动流量控制功能:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC
包装: 带卷 (TR)
其它名称: 935263293518
SC28L92A1A-T
SC28L92A1A-T-ND
6
2552K–AVR–04/11
ATmega329/3290/649/6490
2.2
Comparison between ATmega329, ATmega3290, ATmega649 and ATmega6490
The ATmega329, ATmega3290, ATmega649, and ATmega6490 differs only in memory sizes,
pin count and pinout. Table 2-1 on page 6 summarizes the different configurations for the four
devices.
2.3
Pin Descriptions
The following section describes the I/O-pin special functions.
2.3.1
V
CC
Digital supply voltage.
2.3.2
GND
Ground.
2.3.3
Port A (PA7..PA0)
Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port A also serves the functions of various special features of the ATmega329/3290/649/6490
as listed on page 67.
2.3.4
Port B (PB7..PB0)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port B has better driving capabilities than the other ports.
Port B also serves the functions of various special features of the ATmega329/3290/649/6490
as listed on page 68.
Table 2-1.
Configuration Summary
Device
Flash
EEPROM
RAM
LCD
Segments
General Purpose
I/O Pins
ATmega329
32Kbytes
1Kbytes
2Kbytes
4 x 25
54
ATmega3290
32Kbytes
1K bytes
2Kbytes
4 x 40
69
ATmega649
64Kbytes
2Kbytes
4Kbytes
4 x 25
54
ATmega6490
64Kbytes
2Kbytes
4Kbytes
4 x 40
69
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SC28L92A1A-T 功能描述:UART 接口集成电路 3V-5V 2CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
SC28L92A1B 功能描述:UART 接口集成电路 UART DUAL W/FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
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