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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RESET
RUN
100kΩ
1kΩ
1.0µF
1N914
Red LED
470Ω
0.01µF
470Ω
Green LED
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
+5V
8-bit
+
no parity
16
2 x 3KΩ
8
1
2
+
22µF
5
3
22µF
7
4
+
RS232
MAX
6
+
22µF
3
5
232
connector
2
13
12
1
14
11
15
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
Figure E-8 RAM/EPROM/EEPROM serial bootstrap schematic diagram
MC68HC05B6
Rev. 4.1
10nF
1N914
22
8
10
TCAP1
VRH
VDD
19
+
IRQ
18
RESET
OSC1
20
OSC2
PLMA
22pF
21
PLMB
U2 MC68HC705B16
MCU (socket)
PD3
PD4
39
PB0
38
PB1
37
VPP6
PB2
36
PB3
35
PB4
34
PB5
PC7
33
PB6
32
4k7Ω
PB7
31
PA0
30
PA1
29
PA2
28
PA3
27
PA4
43
PC6
26
PA5
44
PC5
25
PA6
45
PC4
24
PA7
46
PC3
47
PC2
14
PD0
48
PC1
13
PD1
49
PC0
12
PD2
5
PD5
4
PD6
VPP1
3
23
PD7
TCAP2
2
50
TCMP1
RDI
1
52
TCMP2
TDO
51
SCLK
40
NC
VSS
VRL
41
7
voltage must be applied to the VPP6 pin at all times,
DD
MC68HC705B16
P1
1
GND
2
+5V
3
V
PP
+
47µF
47µF
+
4.0 MHz
22pF
Serial boot
Erase check
1 kΩ
&
serial boot
10k Ω
12 kΩ
4k7Ω
+
BC239C
1nF
Freescale
E-17
14