MC9S08EL16CTJ Freescale Semiconductor, MC9S08EL16CTJ Datasheet - Page 27
![MCU 16KB FLASH SLIC 20TSSOP](/photos/12/26/122655/mc9s08el16ctj_sml.jpg)
MC9S08EL16CTJ
Manufacturer Part Number
MC9S08EL16CTJ
Description
MCU 16KB FLASH SLIC 20TSSOP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.DEMO9S08EL32.pdf
(356 pages)
Specifications of MC9S08EL16CTJ
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-TSSOP
Processor Series
S08EL
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SCI, SPI, I2C, SLIC
Maximum Clock Frequency
200 KHz
Number Of Programmable I/os
16
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08EL32AUTO, DEMO9S08EL32
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
For Use With
DEMO9S08EL32 - BOARD DEMO FOR 9S08 EL MCUDEMO9S08EL32AUTO - DEMO BOARD EL32 AUTO
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2.2.2
Immediately after reset, the MCU uses an internally generated clock provided by the clock source
generator (ICS) module. This internal clock source is used during reset startup and can be enabled as the
clock source for stop recovery to avoid the need for a long crystal startup delay. For more information on
the ICS, see
The oscillator (XOSC) in this MCU is a Pierce oscillator that can accommodate a crystal or ceramic
resonator. Rather than a crystal or ceramic resonator, an external oscillator can be connected to the EXTAL
input pin.
Refer to
resistors such as carbon composition resistors. Wire-wound resistors, and some metal film resistors, have
too much inductance. C1 and C2 normally should be high-quality ceramic capacitors that are specifically
designed for high-frequency applications.
R
is not generally critical. Typical systems use 1 MΩ to 10 MΩ. Higher values are sensitive to humidity and
lower values reduce gain and (in extreme cases) could prevent startup.
C1 and C2 are typically in the 5-pF to 25-pF range and are chosen to match the requirements of a specific
crystal or resonator. Be sure to take into account printed circuit board (PCB) capacitance and MCU pin
capacitance when selecting C1 and C2. The crystal manufacturer typically specifies a load capacitance
which is the series combination of C1 and C2 (which are usually the same size). As a first-order
approximation, use 10 pF as an estimate of combined pin and PCB capacitance for each oscillator pin
(EXTAL and XTAL).
2.2.3
RESET is a dedicated pin with a built in pull-up device. It has input hysteresis and an open drain output.
Since the pin does not have a clamp diode to V
reset and low-voltage reset circuitry typically make external reset circuitry unnecessary. This pin is
normally connected to the standard 6-pin background debug connector so a development system can
directly reset the MCU system. If desired, a manual external reset can be added by supplying a simple
switch to ground (pull reset pin low to force a reset).
Whenever any reset is initiated (whether from an external signal or from an internal system), the RESET
pin is driven low for about 66 bus cycles. The reset circuitry decodes the cause of reset and records it by
setting a corresponding bit in the system reset status register (SRS).
Freescale Semiconductor
F
is used to provide a bias path to keep the EXTAL input in its linear range during crystal startup; its value
Figure 2-3
Oscillator
RESET
Chapter 8, “Internal Clock Source
This pin does not contain a clamp diode to V
above V
is not pulled to V
V
pullup.
DD
. If the RESET pin is required to drive to a V
for the following discussion. R
DD
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
. The voltage measured on the internally-pulled-up RESET pin
DD
. The internal gates connected to this pin are pulled to
DD
(S08ICSV2).”
NOTE
, it should not be driven above V
S
(when used) and R
DD
and should not be driven
DD
level, use an external
F
should be low-inductance
Chapter 2 Pins and Connections
DD
. Internal power-on
27
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