参数资料
型号: 151-0153
厂商: Rabbit Semiconductor
文件页数: 38/162页
文件大小: 0K
描述: ASSEMBLY - RABBITFLEX CABLES
标准包装: 1
系列: RabbitFLEX™
附件类型: 缆线组件
适用于相关产品: BL300F
4.3.6.1 Keypad Inputs
The RabbitFLEX Configurator will automatically assign pins from connector J5 as the keypad inputs and
outputs. Keypad inputs and outputs are digital I/O circuits. Keypad inputs are read by the API function
flexKeyProcess() . This function must be called frequently in a software application in order to poll
the keypad for key presses. See sample program Samples/RabbitFLEX_BL300F/keypad.c for
an example of how to use the keypad API functions. (The “RabbitFLEX_BL300F” folder was formerly
named “RabbitFLEX_SBC40.”)
Figure 4-9 Keypad Input Circuit Schematic
+5 V
R4A
10 k W
I/O
Pin
R5
100 W
Digital Interface
Cell
VERSION 6.01
Keypad Input
Table 4-5. Keypad Input Characteristics
Symbol
Parameter
Note
Min
Typical
Max
Unit
DC
V IW
V IM
Working Input Voltage
Maximum Input Voltage
0
-0.5
5
6
V
V
V IH
V IL
High Level Input Voltage
Low Level Input Voltage
2.0
0.8
V
V
V T
I IH
I IL
Trigger Threshold Voltage
High Level Input Current
Low Level Input Current
1
2
3
1.4
-0.3
-0.42
V
mA
mA
I I
I QH
I QL
Input Current
High Level Quiescent Current
Low Level Quiescent Current
4
2, 5, 6
3, 5, 6
-1
0.3
0.42
1.5
mA
mA
mA
AC
t I1
t I0
Input Time Delay to 1
Input Time Delay to 0
7
8
500
100
nS
nS
Note 1: (V IH + V IL ) / 2
Note 2: at V IH
Note 3: at V IL
Note 4: Over Maximum Input Voltage range
Note 5: From PowerCore Supply5
Note 6: I Q = ((5 - V IW ) / 10) mA over Working Input Voltage Range
Note 7: Time delay from a cell pin input voltage change from 0 to 5 Volts to see V IH at the cell output
Note 8: Time delay from a cell pin input voltage change from 5 to 0 Volts to see V IL at the cell output
v1.03
cell v6.01
32
RabbitFLEX BL300F Options
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