MC908QL4MDTE Freescale Semiconductor, MC908QL4MDTE Datasheet - Page 195
MC908QL4MDTE
Manufacturer Part Number
MC908QL4MDTE
Description
IC MCU 8BIT 4K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QL3VDTE.pdf
(226 pages)
Specifications of MC908QL4MDTE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN (Local Interconnect Network)
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Table 16-1
may be entered after a power-on reset (POR) and will allow communication at 9600 baud provided one
of the following sets of conditions is met:
IRQ = V
The rising edge of the internal RST signal latches the monitor mode. Once monitor mode is latched, the
values on PTA1 and PTA4 pins can be changed.
Once out of reset, the MCU waits for the host to send eight security bytes (see
security bytes, the MCU sends a break signal (10 consecutive 0s) to the host, indicating that it is ready to
receive a command.
Freescale Semiconductor
•
•
•
2
3
5
1 μF
1 μF
DB9
If $FFFE and $FFFF do not contain $FF (programmed state):
–
–
If $FFFE and $FFFF contain $FF (erased state):
–
–
If $FFFE and $FFFF contain $FF (erased state):
SS
The external clock is 9.8304 MHz
IRQ = V
The external clock is 9.8304 MHz
IRQ = V
+
+
(internal oscillator is selected, no external clock required)
shows the pin conditions for entering monitor mode. As specified in the table, monitor mode
1
3
4
5
7
8
C1+
C1–
C2+
C2–
Figure 16-12. Monitor Mode Circuit (Internal Clock, No High Voltage)
TST
DD
MAX232
(this can be implemented through the internal IRQ pullup)
V+
V–
16
15
2
10
6
1 μF
9
V
DD
+
+
MC68HC908QL4 Data Sheet, Rev. 8
1 μF
2
74HC125
1
+
3
1 μF
74HC125
6
4
10 kΩ
5
V
DD
10 kΩ
*
N.C.
N.C.
RST (PTA3)
OSC1 (PTA5)
IRQ (PTA2)
PTA0
16.3.2
Monitor Module (MON)
Security). After the
PTA1
PTA4
V
V
DD
SS
* Value not critical
V
N.C.
N.C.
DD
0.1 μF
195
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