MC68HC908JB16DW Freescale Semiconductor, MC68HC908JB16DW Datasheet - Page 125

• Manufacturer Part Number: MC68HC908JB16DW
• Description: IC MCU 16K FLASH 6MHZ USB 28SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB16DW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 6MHz
• Connectivity: SCI, USB
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

MC68HC908JB16
Freescale Semiconductor
NOTES:
1. Affects high voltage entry to monitor mode only (SW2 at position C):
2. SW2: Position C — High-voltage entry to monitor mode.
3. SW3: Position E — OSC1 directly driven by external oscillator.
SW2: Position D — Low-voltage entry to monitor mode (with blank reset vector).
See
SW3: Position F — OSC1 driven by crystal oscillator circuit.
DB-25
10 µF
10 µF
SW1: Position A — Bus clock = f
SW1: Position B — Bus clock = f
2
3
7
Section 20.
+
+
1
3
4
2
5
6
—
for IRQ voltage level requirements.
Rev. 1.1
MC145407
XCLK
XCLK
Figure 9-1. Monitor Mode Circuit
20
18
17
19
16
15
(SEE NOTE 2)
÷ 2
+
+
10 µF
10 µF
10k Ω
Monitor ROM (MON)
V
V
DD
DD
12MHz
V
DD
20 pF
10k Ω
1
2
6
4
7
C
D
V
12MHz
MC74HC125
TST
(SEE NOTE 3)
4.7 µF
SW2
20 pF
(SEE NOTE 1)
+
14
3
5
0.1 µF
E
E
F
F
V
DD
10 kΩ
SW3
A
B
0.1 µF
V
DD
10 kΩ
SW1
0.1 µF
10 kΩ
10 kΩ
10 kΩ
f
V
XCLK
DD
V
V
DD
DD
V
Monitor ROM (MON)
DD
Technical Data
HC908JB16
RST
IRQ
V
V
V
OSC1
OSC2
PTA3
PTA0
PTA1
PTE3
PTA2
REG
DD
SS
125