MC908LJ24CPKE Freescale Semiconductor, MC908LJ24CPKE Datasheet - Page 166

• Manufacturer Part Number: MC908LJ24CPKE
• Description: IC MCU 8BIT 24K FLASH 80-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ24CPKE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 48
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Monitor ROM (MON)
Data Sheet
166
NOTES:
1. Monitor mode entry method:
2. Affects high voltage entry to monitor mode only (SW2 at position C):
5. See
1 µF
1 µF
2
3
5
DB9
SW2: Position C — High voltage entry (V
SW2: Position D — Reset vector must be blank ($FFFE:$FFFF = $FF)
SW1: Position A — Bus clock = OSC1 ÷ 4
SW1: Position B — Bus clock = OSC1 ÷ 2
Table 24-4
+
+
7
8
1
3
4
5
C1+
C1–
C2+
C2–
for V
MAX232
TST
Bus clock depends on SW1 (note 2).
Bus clock = 2.4576MHz.
voltage level requirements.
GND
V
V+
V–
CC
16
15
2
10
6
9
V
EXT OSC
MUST BE USED IF SW2 IS AT POSITION C.
CONNECT TO OSC1, WITH OSC2 UNCONNECTED.
DD
Figure 10-1. Monitor Mode Circuit
+
+
1 µF
TST
1 µF
2
); must use external OSC
74HC125
1
+
V
3
DD
1 µF
Monitor ROM (MON)
74HC125
4.9152MHz/9.8304MHz
6
V
TST
4
5
XTAL CIRCUIT
6–30 pF
(50% DUTY)
V
DD
10 k
32.768kHz
1 k
(SEE NOTE 2)
OSC1
8.5 V
6–30 pF
0.1 µF
330k
10 k
10 k
MC68HC908LJ24/LK24 — Rev. 2.1
C
D
A
B
V
V
DD
DD
0.033 µF
SW2
SW1
10k
(SEE NOTE 1)
Freescale Semiconductor
10 k
0.1 µF
10 k
V
DD
0.01 µF
RST
HC908LJ24
V
V
V
V
V
V
CGMXFC
OSC1
OSC2
IRQ
PTA0
PTA1
PTC1
PTA2
DD
DDA
LCD
REFH
SS
REFL