XC68HC705B32CFN Freescale Semiconductor, XC68HC705B32CFN Datasheet - Page 31

• Manufacturer Part Number: XC68HC705B32CFN
• Description: IC MCU 2.1MHZ 32K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC68HC705B32CFN

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 256 x 8
• Ram Size: 528 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MC68HC05B6
Rev. 4.1
9600 Bd
RS232
Connect as required
for the application
Figure 2-1 MC68HC05B6 ‘load program in RAM and execute’ schematic diagram
RS232 level translator
suggested:
MC145406 or MAX232
RESET
0.01 µF
MODES OF OPERATION AND PIN DESCRIPTIONS
10 kΩ
42
43
44
45
46
47
48
49
18
15
50
52
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
6
RESET
NC
NC
RDI
TDO
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
VDD
VSS
10
41
TCMP2
TCMP1
TCAP1
TCAP2
OSC1
OSC2
PLMA
PLMB
SCLK
VPP1
VRH
PD3
PD4
VRL
PD7
PD6
PD5
PD2
PD1
PD0
IRQ
10 nF
22 pF
16
17
19
11
9
22
8
7
40
20
21
51
1
23
2
3
4
5
12
13
14
10 MΩ
4 MHz
Connect as required
for the application
47 µF
22 pF
10 kΩ
P1
GND
+5V
2xV
Freescale
DD
2-3
2