参数资料
型号: 73S1210F-44IMR/F
厂商: Maxim Integrated Products
文件页数: 76/126页
文件大小: 0K
描述: IC SMART CARD READER 44-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: 73S12xx
核心处理器: 80515
芯体尺寸: 8-位
速度: 24MHz
连通性: I²C,智能卡,UART/USART
外围设备: LED,POR,WDT
输入/输出数: 8
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 6.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-VFQFN 裸露焊盘
包装: 带卷 (TR)
DS_1210F_001
73S1210F Data Sheet
Rev. 1.4
53
1.7.11 LED Driver
The 73S1210F provides a single dedicated output pin for driving an LED. The LED driver pin can be
configured as a current source that will pull to ground to drive an LED that is connected to VDD without
the need for an external current limiting resistor. This pin may be used as general purpose output with
the programmed pull-down current and a strong (CMOS) pull-up, if enabled. The analog block must be
enabled when this output is being used to drive the selected output current.
This pin may be used as an input with consideration of the programmed output current and level. The
register bit when read, indicates the state of the pin.
LED Control Register (LEDCtl): 0xFFF3
0xFF
Table 56: The LEDCtl Register
MSB
LSB
LPUEN
ISET.1
ISET.0
LEDD0
Bit
Symbol
Function
LEDCtl.7
LEDCtl.6
LPUEN
0 = Pull-ups are enabled for all of the LED pins.
LEDCtl.5
ISET.1
These two bits control the drive current (to ground) for the LED driver pin.
Current levels are:
00 = 0ma(off)
01 = 2ma
10 = 4ma
11 = 10ma
LEDCtl.4
ISET.0
LEDCtl.3
LEDCtl.2
LEDCtl.1
LEDCtl.0
LEDD0
Write data controls output level of pin LED0. Read will report level of pin LED0.
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