SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 19

• Manufacturer Part Number: SAF-C161U-LF V1.3
• Description: IC MCU ISDN 16BIT TTL TQFP-100
• Manufacturer: Infineon Technologies
• Series: C16xxr

Specifications of SAF-C161U-LF V1.3

• Core Processor: C166
• Core Size: 16-Bit
• Speed: 36MHz
• Connectivity: EBI/EMI, SPI, UART/USART, USB
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: SAFC161ULFV1.3X; SAFC161ULFV13XP; SP000007502

Table 2
Pin No.
23, 26-29
81
82
83
Data Sheet
Microprocessor Bus and Control Signals (cont’d)
Symbol
P4.0 -
P4.4
RSTIN
RSTOUT O
NMI
Input (I)
Output (O)
I/O
O
O
I
I
Function
PORT4 is an 5-bit bidirectional I/O port. It is
bit-wise programmable for input or output via
direction bits. For a pin configured as input, the
output driver is put into high-impedance state.
In case of an external bus configuration, Port4
can be used to output the segment address
lines:
P40
Address Line
...
P4.4
Address Line
Reset Input with Schmitt-Trigger
characteristics. A low level at this pin for a
specified duration while the oscillator is
running resets the device. An internal pull-up
resistor permits power-on reset using only a
capacitor connected to V
Internal Reset Indication Output. This pin is set
to a low level when the C161U is executing
either a hardware-, software- or a watchdog
timer reset. RSTOUT remains low until the
C161U has initialized itself.
Non-Maskable Interrupt Input. A high to low
transition at this pin causes the CPU to vector
to the NMI trap routine. When the PWRDN
(power down) instruction is executed, the NMI
pin must be low in order to force the CPU to go
into power down mode. If NMI is high, when
PWRDN is executed, the device will continue
to run in normal mode. If not used, pin NMI
should be pulled high externally.
19
...
A16
A20
Least Significant Segment
Most Significant Segment
...
SS
.
Pin Descriptions
2001-04-19
C161U