S9S08DZ60F2MLH Freescale Semiconductor, S9S08DZ60F2MLH Datasheet - Page 31

• Manufacturer Part Number: S9S08DZ60F2MLH
• Description: 8-bit Microcontrollers - MCU M74K MASK ONLY-AUTO
• Manufacturer: Freescale Semiconductor

Specifications of S9S08DZ60F2MLH

• Rohs: yes
• Core: HCS08
• Processor Series: MC9S08DZ60
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 60 KB
• Data Ram Size: 4 K
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: - 40 C to + 125 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT

2.2.1
V
I/O buffer circuitry and to an internal voltage regulator. The internal voltage regulator provides regulated
lower-voltage source to the CPU and other internal circuitry of the MCU.
Typically, application systems have two separate capacitors across the power pins. In this case, there
should be a bulk electrolytic capacitor, such as a 10-μF tantalum capacitor, to provide bulk charge storage
for the overall system and a 0.1-μF ceramic bypass capacitor located as near to the MCU power pins as
practical to suppress high-frequency noise. The MC9S08DZ60 Series has two V
32-pin package. Each pin must have a bypass capacitor for best noise suppression.
V
ADC module. A 0.1-μF ceramic bypass capacitor should be located as near to the MCU power pins as
practical to suppress high-frequency noise.
2.2.2
Immediately after reset, the MCU uses an internally generated clock provided by the multi-purpose clock
generator (MCG) module. For more information on the MCG, see
Generator
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 pull-up device built in. It has input hysteresis, a high current output driver,
and no output slew rate control. Internal power-on 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).
Freescale Semiconductor
F
DD
DDA
is used to provide a bias path to keep the EXTAL input in its linear range during crystal startup; its value
and V
and V
Figure 2-4
(S08MCGV1).”
Oscillator
RESET
SS
Power
SSA
are the primary power supply pins for the MCU. This voltage source supplies power to all
are the analog power supply pins for the MCU. This voltage source supplies power to the
for the following discussion. R
MC9S08DZ60 Series Data Sheet, Rev. 4
S
(when used) and R
Chapter 8, “Multi-Purpose Clock
F
should be low-inductance
Chapter 2 Pins and Connections
DD
pins except on the
31