MC68HC705B16CFN

Manufacturer Part NumberMC68HC705B16CFN
DescriptionIC MCU 2.1MHZ 15K OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC05
MC68HC705B16CFN datasheet
 


Specifications of MC68HC705B16CFN

Core ProcessorHC05Core Size8-Bit
Speed2.1MHzConnectivitySCI
PeripheralsPOR, WDTNumber Of I /o32
Program Memory Size15KB (15K x 8)Program Memory TypeOTP
Eeprom Size256 x 8Ram Size352 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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100kΩ
1kΩ
1N914
0.01µF
Erase check
Green LED — EPROM erased
Red LED — EPROM not erased
Serial boot
Flashing green LED — programming
Green LED — programming ended
Erase check and serial boot
EPROM erase check
9600 BD
22µF
8-bit
+
no parity
2 x 3KΩ
8
5
22µF
7
+
RS232
3
Connector
2
13
1
14
Note:
A minimum V
including power-on, as a lower voltage could damage the device. Unless
otherwise stated, EPROM programming is guaranteed at ambient (25°C)
temperature only
14
Figure H-8 RAM load and execute schematic diagram
Freescale
H-20
RESET
RUN
1N914
22
TCAP1
VRH
1.0µF
19
+
IRQ
18
RESET
Red LED
470Ω
20
PLMA
470Ω
21
PLMB
Green LED
MC68HC705B32
MCU (socket)
39
PB0
38
PB1
37
PB2
36
PB3
35
PB4
34
PB5
33
PB6
32
PB7
31
PA0
30
PA1
29
PA2
28
PA3
27
PA4
26
PA5
25
PA6
24
PA7
14
+5V
PD0
13
PD1
12
16
PD2
1
5
2
+
PD5
22µF
3
4
PD6
4
MAX
3
6
+
PD7
22µF
5
232
50
12
RDI
52
11
TDO
15
VSS
VRL
41
voltage must be applied to the VPP6 pin at all times,
DD
MC68HC705B32
P1
1
2
3
10nF
+
47µF
8
10
VDD
47µF
OSC1
OSC2
4.0 MHz
22pF
22pF
PD3
Serial boot
PD4
Erase check
&
serial boot
10k Ω
VPP6
12 kΩ
4k7Ω
PC7
+
BC239C
1nF
4k7Ω
43
PC6
44
PC5
45
PC4
46
PC3
47
PC2
48
PC1
49
PC0
VPP1
23
TCAP2
2
TCMP1
1
TCMP2
51
SCLK
40
NC
7
MC68HC05B6
Rev. 4.1
GND
+5V
V
PP
+
1 kΩ