MCHC908QT2MDWER Freescale Semiconductor, MCHC908QT2MDWER Datasheet - Page 142
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MCHC908QT2MDWER
Manufacturer Part Number
MCHC908QT2MDWER
Description
IC MCU 1.5K FLASH W/ADC 8-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QY4MDWER.pdf
(184 pages)
Specifications of MCHC908QT2MDWER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
5
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Processor Series
HC08QT
Core
HC08
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Lead Free Status / Rohs Status
Details
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Development Support
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 logic 0s) to the host, indicating that it is
ready to receive a command.
15.3.1.1 Normal Monitor Mode
RST and OSC1 functions will be active on the PTA3 and PTA5 pins respectively as long as V
applied to the IRQ pin. If the IRQ pin is lowered (no longer V
monitor mode, but the pin functions will be determined by the settings in the configuration registers (see
Chapter 5 Configuration Register
BIL instructions will read the IRQ pin state only if IRQEN is set in the CONFIG2 register.
142
Function
[Pin No.]
MON08
Monitor
Monitor
Normal
Forced
1. PTA0 must have a pullup resistor to V
2. Communication speed in the table is an example to obtain a baud rate of 9600. Baud rate using external oscillator is bus
3. External clock is a 9.8304 MHz oscillator on OSC1.
4. X = don’t care
5. MON08 pin refers to P&E Microcomputer Systems’ MON08-Cyclone 2 by 8-pin connector.
Mode
User
frequency / 256 and baud rate using internal oscillator is bus frequency / 335.
(PTA2)
V
V
IRQ
V
V
[6]
TST
TST
X
DD
SS
(PTA3)
RST
RST
V
[4]
X
X
X
DD
Table 15-1. Monitor Mode Signal Requirements and Options
Vector
(blank)
(blank)
$FFFF
$FFFF
$FFFF
Reset
Not
—
X
Communi-
MC68HC908QY/QT Family Data Sheet, Rev. 6
cation
Serial
PTA0
COM
(CONFIG)) when V
[8]
DD
OSC1
1
1
1
X
V
NC
NC
NC
NC
NC
NC
in monitor mode.
DD
MOD0
PTA1 PTA4
[12]
Selection
11
13
15
X
X
X
1
1
3
5
7
9
Mode
MOD1
[10]
10
12
14
16
X
X
X
0
2
4
6
8
TST
GND
RST
IRQ
PTA0
PTA4
PTA1
NC
NC
Disabled
Disabled
Disabled
Enabled
COP
—
was lowered. With V
TST
External
9.8304
9.8304
) then the chip will still be operating in
Clock
OSC1
MHz
MHz
[13]
X
X
Communication
Frequency
(Trimmed)
Speed
3.2 MHz
2.4576
2.4576
MHz
MHz
Bus
—
X
TST
15.3.2
lowered, the BIH and
Freescale Semiconductor
Baud
Rate
9600
9600
9600
—
Security). After the
X
Provide external
clock at OSC1.
Provide external
clock at OSC1.
Internal clock
is active.
Comments
TST
is
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