SAF-C505CA-LM Infineon Technologies, SAF-C505CA-LM Datasheet - Page 11

• Manufacturer Part Number: SAF-C505CA-LM
• Description: IC, 8BIT MCU ROM/ROMLESS, SMD
• Manufacturer: Infineon Technologies

Specifications of SAF-C505CA-LM

• No. Of I/o's: 34
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 4
• Digital Ic Case Style: MQFP
• Supply Voltage: RoHS Compliant
• Core Size: 8bit
• Oscillator Type: External, Internal
• Controller Family/series: C500
• Peripherals: ADC
• Rohs Compliant: Yes

Table 2
Pin Definitions and Functions (cont’d)
Symbol
RESET
P3.0-P3.7
*) I = Input
Data Sheet
O = Output
4
5, 7-13
5
7
8
9
10
11
12
13
Pin Number
I/O
*)
I
I/O
Function
RESET
A high level on this pin for two machine cycle while the
oscillator is running resets the device. An internal diffused
resistor to V
external capacitor to V
Port 3
is an 8-bit quasi-bidirectional port with internal pull-up
arrangement. Port 3 pins that have 1’s written to them are
pulled high by the internal pull-up transistors and in that
state can be used as inputs. As inputs, port 3 pins being
externally pulled low will source current (I
characteristics) because of the internal pullup transistors.
The output latch corresponding to a secondary function
must be programmed to a one (1) for that function to operate
(except for TxD and WR). The secondary functions are
assigned to the pins of port 3 as follows:
P3.0 / RxD
P3.1 / TxD
P3.2 / INT0
P3.3 / INT1
P3.4 / T0
P3.5 / T1
P3.6 / WR
P3.7 / RD
7
SS
permits power-on reset using only an
Receiver data input (asynch.) or data
input/output (synch.) of serial interface
Transmitter data output (asynch.) or
clock output (synch.) of serial interface
External interrupt 0 input / timer 0 gate
control input
External interrupt 1 input / timer 1 gate
control input
Timer 0 counter input
Timer 1 counter input
WR control output; latches the data
byte from port 0 into the external data
memory
RD control output; enables the external
data memory
C505/C505C/C505A/C505CA
DD
.
IL
, in the DC
12.00