MC908AP32CFBE Freescale, MC908AP32CFBE Datasheet - Page 116

• Manufacturer Part Number: MC908AP32CFBE
• Manufacturer: Freescale

Specifications of MC908AP32CFBE

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SCI/SPI
• Total Internal Ram Size: 2KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PQFP
• Program Memory Type: Flash
• Program Memory Size: 32KB
• Lead Free Status / RoHS Status: Compliant

Monitor ROM (MON)
116
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 22-4
+
+
1
3
4
5
7
8
C1+
C1–
C2+
C2–
for V
MAX232
TST
Bus clock depends on SW1 (note 2).
Bus clock = 1.2288MHz.
voltage level requirements.
GND
V
V+
CC
V–
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
+
+
MC68HC908AP Family Data Sheet, Rev. 4
1 µF
TST
1 µF
Figure 8-1. Monitor Mode Circuit
2
); must use external OSC
74HC125
1
V
+
REG
3
1 µF
74HC125
4.9152MHz/9.8304MHz
6
V
TST
4
5
XTAL CIRCUIT
6–30 pF
(50% DUTY)
V
DD
10 k
4.9152MHz
1 k
(SEE NOTE 2)
OSC1
8.5 V
6–30 pF
0.1 µF
10k
10 k
C
D
A
B
1M
V
V
DD
DD
0.033 µF
SW2
SW1
10k
10k
(SEE NOTE 1)
10 k
0.1 µF
Freescale Semiconductor
10k
V
DD
V
0.01 µF
DD
RST
HC908AP
V
V
V
V
V
V
V
CGMXFC
OSC1
OSC2
IRQ1
PTA0
PTA1
PTB0
PTA2
DD
DDA
REFH
REG
REFL
SS
SSA