MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 121

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

MC68336/376
USER’S MANUAL
DATA15
DATA8
DATA7
DATA0
Alternate methods can be used for driving data bus pins low during reset. Figure 5-17
shows two of these options. The simplest is to connect a resistor in series with a diode
from the data bus pin to the RESET line. A bipolar transistor can be used for the same
purpose, but an additional current limiting resistor must be connected between the
base of the transistor and the RESET pin. If a MOSFET is substituted for the bipolar
transistor, only the 1 k
offer the protection from potential memory corruption during RESET assertion as does
the circuit shown in Figure 5-16.
RESET
R/W
DS
Figure 5-16 Preferred Circuit for Data Bus Mode Select Conditioning
820
V
DD
10 k
V
DD
10 k
isolation resistor is required. These simpler circuits do not
V
SYSTEM INTEGRATION MODULE
DD
OUT1
IN1
HIGH OR LOW
AS NEEDED
TIE INPUTS
74HC244
OUT8
IN8
OE
OUT1
IN1
HIGH OR LOW
AS NEEDED
TIE INPUTS
74HC244
DATA BUS SELECT CONDITIONING
OUT8
MOTOROLA
IN8
OE
5-43