User`s manual

RabbitFLEX User’s Manual www.rabbit.com 33
4.3.6.2 Keypad Outputs
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. See sample program
Samples/RabbitFLEX_BL300F/keypad.c for an example of how to use the keypad API func-
tions. (The “RabbitFLEX_BL300F” folder was formerly named “RabbitFLEX_SBC40.”)
Figure 4-10 Keypad Driver Circuit Schematic
Power On/Reset State: Off, High impedance
Table 4-6. Keypad Driver Characteristics
Keypad Driver
47 W
4.7 kW
VERSION 6.02
I/O
Pin
Digital Interface
Cell
Q1A
R1
R3A
Symbol Parameter Note Min Typical Max Unit
V
S
Supply Voltage 0 5 V
V
OL
Low Level Output Voltage 0.8 V
I
OL
Low Level Output Current 10 mA
I
L
Leakage Current 10 uA
I
QH
High Level Quiescent Current 1 1 uA
I
QL
Low Level Quiescent Current 1 1 mA
t
O1
Output Time Delay to 1 2 1 uS
t
O0
Output Time Delay to 0 3 72 nS
v1.02
Note 1: From PowerCore Supply5
cell v6.02
Note 2: Delay from a cell input voltage change from logical 1 to 0 to see V
OH
at the output pin with 10K pullup
Note 3: Delay from a cell input voltage change from logical 0 to 1 to see V
OL
at the output pin at I
OL
DC
AC