SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 296

• 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

Data Sheet
timer. However, any other reload values may be used.
The maximum usable timespan is 2
100 years (referring to a RTC count input frequency RTC_REF_CLK of 625 KHz, which
is equal to a 20 MHz Oscillator divided by 32, and an activated prescaler).
13.2.7
The count input of the RTC module (RTC_REF_CLK) is connected as shown in
Figure 93. The RTC timer base is equal to timer T14 overflow and depends on the
selectable prescaler and on the reload counter T14.
Figure 93
The table below lists the RTC_T14INT interrupt period range for several RTC count input
frequencies:
Table 67
Oscillator
Frequency
32 KHz
1 MHz
4 MHz
5 MHz
8 MHz
10 MHz
12 MHz
RTC_CLK_SEL
CPU_CLOCK
XTAL2
XTAL1
Defining the RTC Time Base
OSC
32:1
RTC module clocking scheme
RTC Interrupt Periods
Divider
Factor
1
32
32
32
32
32
32
RTC_REF_CLK
M
U
X
RTC Input
Frequency
32 KHz
312.5 KHz
125 KHz
19.531 KHz
156.25 KHz
312.5 KHz
375 KHz
RTC module (simple drawing)
48
8:1
( 10
Prescaler
Factor
8
8
8
8
8
8
296
14
) T14 input clocks, which equals more than
M
U
X
RTC_T14INT Period
Minimum
31.25 µs
256.0 µs
64.0 µs
51.2 µs
32.0 µs
25.6 µs
21.3 µs
16 bit
T14
Real Time Clock (RTC)
RTC Timer
Maximum
2.048 s
16.77 s
4.194 s
3.355 s
2.097 s
1.678 s
1.398 s
32 bit
RTCmoduleclk001
2001-04-19
RTC_T14INT
RTC_INT
C161U