MCR908JK1ECPE Freescale Semiconductor, MCR908JK1ECPE Datasheet - Page 72

• Manufacturer Part Number: MCR908JK1ECPE
• Description: IC MCU 1.5K FLASH 8MHZ 20-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCR908JK1ECPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 14
• 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 ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Processor Series: HC08JK
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Development Tools By Supplier: FSICEBASE, DEMO908JL16E, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

Monitor ROM (MON)
72
NOTES:
1. Monitor mode entry method:
2. Affects high voltage entry to monitor mode only (SW1 at position A):
5. See
1 μF
1 μF
2
3
5
DB9
SW1: Position A — High voltage entry (V
SW1: Position B — Reset vector must be blank ($FFFE = $FFFF = $FF)
SW2: Position C — Bus clock = OSC1 ÷ 4
SW2: Position D — Bus clock = OSC1 ÷ 2
Table 16-4. DC Electrical Characteristics (5V)
+
+
7
8
1
3
4
5
C1+
C1–
C2+
C2–
FOR MC68HRC908JL3E/JK3E/JK1E
MAX232
SW1 MUST BE AT POSITION B
Clock source must be EXT OSC or XTAL CIRCUIT.
Bus clock depends on SW2.
Bus clock = OSC1 ÷ 4.
GND
V
FOR MC68HRC908JL3E/JK3E/JK1E
V+
V–
CC
FOR MC68HC908JL3E/JK3E/JK1E
SW1 MUST BE AT POSITION A
16
15
2
6
10
9
SW1 AT POSITION A OR B
V
RC CIRCUIT
DD
FOR MC68HC908JL3E/JK3E/JK1E
+
+
MC68HC908JL3E Family Data Sheet, Rev. 4
1 μF
1 μF
2
Figure 7-1. Monitor Mode Circuit
TST
SW1 AT POSITION A OR B
74HC125
1
)
+
EXT OSC
3
for V
1 μF
V
DD
74HC125
TST
XTAL CIRCUIT
6
V
See
(5V @25°C)
vs. frequency.
TST
voltage level requirements.
4
V
Figure 16-1. RC vs. Frequency
DD
5
V
(50% DUTY)
DD
10 k
for component values
20 pF
1 k
9.8304MHz
(SEE NOTE 2)
8.5 V
10 k
10 k
20 pF
A
B
C
D
OSC1
OSC2
OSC1
OSC2
V
DD
10 k
SW1
SW2
0.1 μF
(SEE NOTE 1)
V
DD
10 k
0.1 μF
V
Freescale Semiconductor
10 k
DD
V
DD
H(R)C908JL3E
H(R)C908JK3E
H(R)C908JK1E
RST
V
V
OSC1
OSC2
IRQ
PTB0
PTB1
PTB3
PTB2
DD
SS